AD 77-21-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus SAS | BAC 1-11 200 Series | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model BAC 1-11 Airplanes |
| aircraft | Airbus SAS | BAC 1-11 400 Series | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model BAC 1-11 Airplanes |
Unsafe Condition
Fuel leakage into the cargo compartment which may result in a fire or explosion
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Required Actions
Do not add fuel to the auxiliary fuel tanks installed per STC SA2971WE before further flight. Deactivate or remove the auxiliary fuel system within 12 hours time in service by purging tanks, closing valves, disconnecting wiring, securing circuit breakers, logging, and placarding, or follow National Aircraft Leasing Report NA 3-1060 for removal. Equivalent procedures may be approved by FAA.
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Compliance Time
Before further flight after the effective date of this AD and within 12 hours time in service after the effective date
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Affected Aircraft
BAC 1-11 airplanes certificated in all categories incorporating auxiliary fuel tanks per supplemental type certificate SA2971WE
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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