AD 67-22-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Twin Commander Aircraft LLC | 500-A | Airworthiness Directives; Aero Commander 500A, 500B, 560F, 680F, 680F , 680 FL, and 680 FL(P) Airplanes |
| aircraft | Twin Commander Aircraft LLC | 500-B | Airworthiness Directives; Aero Commander 500A, 500B, 560F, 680F, 680F , 680 FL, and 680 FL(P) Airplanes |
| aircraft | Twin Commander Aircraft LLC | 560-F | Airworthiness Directives; Aero Commander 500A, 500B, 560F, 680F, 680F , 680 FL, and 680 FL(P) Airplanes |
| aircraft | Twin Commander Aircraft LLC | 680-F | Airworthiness Directives; Aero Commander 500A, 500B, 560F, 680F, 680F , 680 FL, and 680 FL(P) Airplanes |
| aircraft | Twin Commander Aircraft LLC | 680-FL | Airworthiness Directives; Aero Commander 500A, 500B, 560F, 680F, 680F , 680 FL, and 680 FL(P) Airplanes |
| aircraft | Twin Commander Aircraft LLC | 680-FL(P) | Airworthiness Directives; Aero Commander 500A, 500B, 560F, 680F, 680F , 680 FL, and 680 FL(P) Airplanes |
| aircraft | Twin Commander Aircraft LLC | 680-F(P) | Airworthiness Directives; Aero Commander 500A, 500B, 560F, 680F, 680F , 680 FL, and 680 FL(P) Airplanes |
Unsafe Condition
The main landing gear upper retaining bearing may rotate, which could result in failure of the main landing gear structure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the main landing gear in accordance with Aero Commander Service Bulletin 83A dated June 25, 1965, or an equivalent approved by the Director, Southwest Region, Federal Aviation Administration. Stamp the letter 'B' after the design number on each landing gear data plate after the modification.
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Compliance Time
within the next 25 hours' time in service after the effective date of this AD
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Affected Aircraft
Twin Commander Aircraft LLC Models 500-A, 500-B, 560-F, 680-F, 680-FL, and 680-FL(P) Airplanes, Serial Numbers 871, 875, and 893 through 1535 except 1515, 1517, 1519, 1527, 1531, 1532, and 1534.
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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