AD 99-10-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus SAS | BAC 1-11 200 Series | Airworthiness Directives; British Aerospace Model BAC 1-11 200 and 400 Series Airplanes |
| aircraft | Airbus SAS | BAC 1-11 400 Series | Airworthiness Directives; British Aerospace Model BAC 1-11 200 and 400 Series Airplanes |
Unsafe Condition
Failure of the flap control lever, which could result in restricted flap movement and consequent reduced controllability of the airplane.
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Required Actions
Perform a one-time detailed visual inspection of the flap control lever to detect cracking and identify the aluminum alloy type within 12 months after the effective date. If cracks are found or the lever is made of L53 alloy or material cannot be identified, replace the lever with L97 or L99 alloy lever prior to further flight. Repeat inspections every 24 months if replacement isn't done.
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Compliance Time
Within 12 months after the effective date
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Affected Aircraft
British Aerospace Model BAC 1-11 200 and 400 series airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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