AD 2000-19-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 777 | Airworthiness Directives; Boeing Model 777 Series Airplanes |
Unsafe Condition
Increased vibration of the coveskin due to air leaking and resonating within the cavity between the fixed leading edge and the coveskin, which can result in fatigue cracking and high fatigue loads, potentially leading to skin separation or structural damage to the leading edge slats.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct repetitive detailed visual inspections to detect cracking of the coveskin on the outboard leading edge slats; perform a slat adjustment check; and take corrective actions if necessary. Optionally, install foam inserts in the spanwise bulb seals to reduce vibration and increase the inspection interval.
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Compliance Time
Within the specified compliance times outlined in Boeing Alert Service Bulletin 777-57A0034, Revision 4, which are based on flight hours and cycles.
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Affected Aircraft
All Boeing Model 777 series airplanes, with certain exceptions as detailed in the AD, and subject to the applicability criteria specified in the referenced service bulletins.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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