AD 2019-11-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
cracks in the underwing longerons, which could result in fuel leakage into the forward cargo area and consequent increased risk of a fire or, in a more severe case, could adversely affect the structural integrity of the airplane.
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Required Actions
repetitive inspections of the left and right side underwing longerons for any crack, and related investigative and corrective actions if necessary, including replacement of the left or right underwing longeron, as applicable.
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Compliance Time
Within 50 flight hours
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Affected Aircraft
The Boeing Company Model 777 airplanes, line numbers 1523, and 1525 and subsequent.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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