AD 71-20-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus SAS | BAC 1-11 200 Series | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model BAC 1-11 200 and 400 Series Airplanes |
| aircraft | Airbus SAS | BAC 1-11 400 Series | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model BAC 1-11 200 and 400 Series Airplanes |
Unsafe Condition
Failure of the landing gear selector lever switch to warn the pilot when the lever is not fully engaged in a gated position could result in unintended gear retraction or extension.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the landing gear selector lever assembly by incorporating a microswitch wired into the existing landing gear indication circuit in accordance with British Aircraft Corporation Service Bulletin No. 32-PM 4538 or an FAA-approved equivalent.
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Compliance Time
within the next 2,000 hours' time in service after the effective date of this AD
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Affected Aircraft
British Aircraft Corporation Model BAC 1-11 200 and 400 Series airplanes
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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