AD 2012-22-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Reports of cracks of the wing rear spar lower cap at the outboard flap, inboard drive hinge at station Xrs=164.000.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct repetitive eddy current high frequency (ETHF) inspections for cracking on the aft side of the left and right wing rear spar lower caps at station Xrs=164.000. Perform further ETHF inspections if cracks are found and repair if necessary. Conduct repetitive post-repair inspections and repair if necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 10,000 flight cycles after the effective date of this AD, or before the accumulation of 30,000 total flight cycles, whichever occurs later.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All The Boeing Company Model MD-90-30 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 6, 2026
Rights: U.S. Government Public Domain
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