AD 91-03-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | BAE Systems (Operations) Limited | BAe 146-100A | Airworthiness Directives; British Aerospace Model BAe 146 Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | BAe 146-200A | Airworthiness Directives; British Aerospace Model BAe 146 Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | BAe 146-300A | Airworthiness Directives; British Aerospace Model BAe 146 Series Airplanes |
Unsafe Condition
Cracks in the wing outer butt straps at Rib 2 lower wing skin joint could lead to failure of the butt strap and reduced structural capability of the wings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a detailed visual inspection of the right and left wing outer butt straps at Rib 2 lower wing skin joint per British Aerospace Service Bulletin 57-36 within 30 days after the effective date or before 12,000 landings, whichever is later. Repeat inspections every 9,000 landings or 4.5 years, whichever comes first. If cracks are found, repair them prior to further flight with approval from the FAA's Manager, Standardization Branch.
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Compliance Time
Prior to the accumulation of 12,000 landings, or within 30 days after the effective date of this AD, whichever occurs later
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Affected Aircraft
British Aerospace Model BAe 146-100A, BAe 146-200A, BAe 146-300A airplanes with Serial Numbers E2133, E3134, E3135, E3137, E2139, E3141, E3142, E3145, E2148, E3151, and E3155
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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