AD 79-07-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| aircraft | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-2 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| aircraft | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-3 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| aircraft | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-4 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| aircraft | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-5 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| aircraft | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-5T | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| aircraft | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-6 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| aircraft | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-7 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| aircraft | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-7T | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| aircraft | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-9 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-2 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-3 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-4 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-5 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-5T | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-6 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-7 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-7T | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-9 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-9A | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | A-9B | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 11AC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 11BC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 11CC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 402 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7AC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7ACA | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7BCM (Army L-16A) | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7CCM (Army L-16B) | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7DC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7EC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7ECA | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7FC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7GC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7GCA | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7GCAA | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7GCB | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7GCBA | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7GCBC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7HC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7JC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7KC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 7KCAB | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 8GCBC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 8KCAB | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | S11AC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | S11BC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | S11CC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | S7AC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | S7CCM | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | S7DC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | S7EC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 14-12F-3 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 14-13 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 14-13-2 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 14-13-3 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 14-13-3W | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 14-9 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 14-9L | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 300-W Pacemaker | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | CH | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | CH-300 Pacemaker | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | CH-400 Skyrocket | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | E Pacemaker | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | F Skyrocket | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Pacemaker 31-42 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Pacemaker 31-42 (Floats) | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 112 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 112B | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 112TC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 112TCA | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 114 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 114A | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 114B | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 114TC | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | D-1 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | F-28 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | F-28A | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | F-28C | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | F-28C-2 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | F-28C-2R | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | F-28F | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | F-28F-R | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 15A | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 20 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 500 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | H-250 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | H-295 (USAF U10D) | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | H-391 (USAF UL-24) | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | H-391B | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | H-395 (USAF L-28A or U-10B) | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | H-395A | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | H-700 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | H-800 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | HST-550 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | HST-550A (USAF AU-24A) | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | HT-295 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | PA-25 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | PA-25-235 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | PA-25-260 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | PA-28-140 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | PA-28-150 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | PA-28-151 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | PA-28-160 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | PA-28-161 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | PA-28-180 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | PA-28-181 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | PA-28-201T | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | PA-28-235 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | PA-28-236 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Colonial C-1 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Colonial C-2 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Lake LA-4 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Lake LA-4-200 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Lake LA-4A | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Lake LA-4P | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Lake Model 250 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Navion (Army L-17A) | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Navion A (Army L-17B and L-17C) | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Navion B | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Navion D | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Navion E | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Navion F | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Navion G | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | Navion H | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 500-A | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 500-B | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 500-S | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 500-U | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 520 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 560 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 560-A | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 560-E | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 560-F | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 680 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 680-E | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 680-F | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 680-F(P) | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 680-FL | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 680-FL(P) | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 680-T | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 680-V | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 680-W | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 681 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 685 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 690 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 690A | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 690B | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 690C | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 690D | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 695 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 695A | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 695B | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 700 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 720 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 108 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 108-1 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 108-2 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 108-3 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
| appliance | Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporation | Commander Aircraft Corporation | Emerald Enterprises Ltd. | Helio Aircraft Corporation | Helio Aircraft LLC | Lavia Argentina S.A. (Laviasa) | Twin Commander Aircraft LLC | Univair Aircraft Corporation | Piper Aircraft Inc. | The Enstrom Helicopter Corporation | Revo Incorporated | Sierra Hotel Aero Inc. | 108-5 | Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 |
Unsafe Condition
The Exide AC 78M and Willard W 78M batteries manufactured between December 1978 and February 1979, identified by N-8, A-9, or B-9 stamped on terminal posts, may fail due to internal short circuits or electrolyte leakage.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove the batteries from service before next flight and replace with any approved battery of comparable rating.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
before next flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
ESB WISCO, INCORPORATED batteries manufactured during December 1978, January and February 1979, identified by N-8, A-9, or B-9 stamped on terminal posts, installed in various models including Aero Commander, Bellanca, Callair, Champion, Enstrom, Helio, Lake Amphibian, Navion, Piper, Rockwell, Stinson, and Wing aircraft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Batteries
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_79-07-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-07-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During ...Show more Subject: Batteries Status: Current Citation: This information is not available. Citation Publish Date: 03/29/1979 Effective Date: 04/03/1979 Make: Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporatio...Show more Model: A | A-2 | A-3 | A-4 | A-5 | A-5T | A-6 | A-7 | A-7T | A-9 | A-9A | A-9B | 11AC | 11BC | 11CC | 402 |...Show more Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 79-07-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3442 AD NUMBER: 79-07-02 SUBJECT HEADING: Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 ACTION: SUMMARY: DATES: Effective April 3, 1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-07-02 ESB WISCO, INCORPORATED: Amendment 39-3442. EXIDE AC 78M and WILLARD W 78M BATTERIES. Applies to those batteries manufactured during December 1978, January and February 1979, identified by the figures N-8, A-9, or B-9 stamped on either terminal post. They may be installed in, but not limited to, the following aircraft: Aero Commander 1960 on - various models, Bellanca 1959 on - various models, Callair 1964 on - various models, Champion 7 series models: 7GC, 7HC, etc., Enstrom F-28 series, possible other models, Helio All series, Lake Amphibian Model C-1 and LA-4, Navion Rangemaster and others, Piper Cherokee and Pawnee PA-28 and PA-25, but not limited to these models, Rockwell All models, Stinson All models, Wing Derringer models. Compliance is required as follows. Remove from service before next flight and replace with any approved battery of comparable rating. This amendment becomes effective April 3, 1979. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_79-07-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-07-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During ...Show more Subject: Batteries Status: Current Citation: This information is not available. Citation Publish Date: 03/29/1979 Effective Date: 04/03/1979 Make: Aircraft Parts & Development Corp. | American Champion Aircraft Corp. | Bellanca Aircraft Corporatio...Show more Model: A | A-2 | A-3 | A-4 | A-5 | A-5T | A-6 | A-7 | A-7T | A-9 | A-9A | A-9B | 11AC | 11BC | 11CC | 402 |...Show more Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 79-07-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3442 AD NUMBER: 79-07-02 SUBJECT HEADING: Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979 ACTION: SUMMARY: DATES: Effective April 3, 1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-07-02 ESB WISCO, INCORPORATED: Amendment 39-3442. EXIDE AC 78M and WILLARD W 78M BATTERIES. Applies to those batteries manufactured during December 1978, January and February 1979, identified by the figures N-8, A-9, or B-9 stamped on either terminal post. They may be installed in, but not limited to, the following aircraft: Aero Commander 1960 on - various models, Bellanca 1959 on - various models, Callair 1964 on - various models, Champion 7 series models: 7GC, 7HC, etc., Enstrom F-28 series, possible other models, Helio All series, Lake Amphibian Model C-1 and LA-4, Navion Rangemaster and others, Piper Cherokee and Pawnee PA-28 and PA-25, but not limited to these models, Rockwell All models, Stinson All models, Wing Derringer models. Compliance is required as follows. Remove from service before next flight and replace with any approved battery of comparable rating. This amendment becomes effective April 3, 1979. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.