AD 2005-12-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 757-200 | Airworthiness Directives; Boeing Model 757-200, -200PF, and -200CB Series Airplanes |
Unsafe Condition
Reports of cracks, loose and broken bolts, and shim migration in the joint between the aft torque bulkhead and the strut-to-diagonal brace fitting.
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Required Actions
Inspect for damaged sealant around the shim, inspect for signs of shim movement, measure the horizontal and vertical movement of the shim, inspect for signs of movement of the four fasteners in the vertical flange, and detect signs of damaged paint and/or sealant or signs of movement of the 16 fasteners that hold the bulkhead assembly to the horizontal flange of the strut-to-diagonal brace fitting.
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Compliance Time
Within 90 days for unmodified airplanes; for airplanes modified in accordance with Service Bulletin 757-54-0035, initial inspection is due within 6,000 flight cycles/36 months after modification, with a grace period of 3,000 flight cycles/18 months.
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Affected Aircraft
Boeing Model 757-200, -200PF, and -200CB series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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