AD 69-04-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-100C Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200F Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727C Series | BOEING Model 727 Series Airplanes |
Unsafe Condition
Inadvertent operation of the battery switch during some operating conditions could result in loss of the standby electrical system.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a guard (Grimes P/N 11170-1 or equivalent MS type painted black) on the battery switch; replace the battery switch with a detent lock type switch (P/N MS 25125-E3 or equivalent MS type) if the galley switch is a toggle type; or perform an equivalent installation approved by the Chief, Aircraft Engineering Division, FAA, Western Region. Decals must be installed as necessary to retain switch function and position identification.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 50 hours time in service after the effective date of this AD, unless already accomplished
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Affected Aircraft
Boeing Model 727 Series airplanes in which the battery switch is located within ten inches of the galley switch
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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