AD 2015-15-15
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Sealant might not have been applied in production to the wing skin panel gaps above certain underwing fittings, which could result in corrosion and fatigue cracking in the wing skin panel, and consequent loss of limit load capability of the wing skin and potential subsequent structural failure of the wings.
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Required Actions
An inspection for missing sealant is required, along with applicable other specified, related investigative and corrective actions. Repairs must be approved by the Manager, Seattle ACO, FAA, or by the Boeing Organization Designation Authorization (ODA) using FAA Form 8100-9.
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Compliance Time
Before further flight
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Affected Aircraft
The Boeing Company Model 777-200, 777-200LR, 777-300ER, and 777F series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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