AD 2021-24-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Damage to the thrust reverser (TR) translating sleeve secondary sliders due to contact between the slider and the slider track liner could reduce the fatigue life of the slider below its full design life for the TRs installed on certain engines.
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Required Actions
Determining the serial number of the TR and performing applicable on-condition actions; or replacing the TR with a serviceable TR. On-condition actions include reworking affected TR slider track liners; determining the serial number of the TR translating sleeves; checking to determine if certain TR translating sleeves have been installed on certain TRs; performing a detailed inspection of the secondary sliders of affected TR translating sleeves for cracking, grooving, gouging damage, and any existing repair; performing a dye penetrant inspection on any cracking, grooving or gouging damage, and any existing repair for cracking; and repairing any discrepancy found.
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Compliance Time
Before further flight
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Affected Aircraft
The Boeing Company Model 787-8, 787-9, and 787-10 airplanes with TRs installed on certain engines.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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