AD 2000-20-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 757 | Airworthiness Directives; Boeing Model 757 Series Airplanes Powered by Pratt & Whitney Engines |
Unsafe Condition
Fatigue cracking in primary strut structure due to actual operational loads exceeding analytical loads used in initial design, leading to reduced structural integrity of the strut before reaching the design service objective.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the nacelle strut and wing structure on both sides of the airplane in accordance with Boeing Service Bulletin 757-54-0034. Accomplish actions specified in Boeing Service Bulletins 757-54-0027, Revision 1, and 757-54-0036, as applicable. Repair any damage found during the modification in accordance with an approved method or data meeting the type certification basis.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 3,000 flight cycles after the effective date of the AD or prior to the accumulation of 37,500 total flight cycles, or within 20 years since the date of manufacture, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 757 series airplanes powered by Pratt & Whitney engines, line numbers 1 through 735 inclusive, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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