AD 2021-08-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
crack indications found in the lower aft wing skin bolt holes where the flap tracks attach to the track support fitting
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
repetitive high frequency eddy current inspections for cracking of the left and right wing, lower aft wing skin aft edge, at flap track numbers 1, 2, 3, 6, 7, and 8 attachment location and applicable on-condition actions
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the compliance times specified, unless already done
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
all The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes, 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 4, 2026
Rights: U.S. Government Public Domain
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