AD 2010-16-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company Model 777-200LR and -300ER | Airworthiness Directives; The Boeing Company Model 777-200LR and -300ER Series Airplanes Equipped with GE90-100 Series Engines |
Unsafe Condition
Insufficient clearance and subsequent interference between the oil scavenge tube on the turbine rear frame of the engine and the bolt on the aft cowl insulation blanket of the thrust reverser.
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Required Actions
Replace the insulation blanket fasteners of the lower aft cowl of the thrust reverser. Inspect the oil scavenge tube on the turbine rear frame of the engine for damage, and replace the tube if damage is found.
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Compliance Time
Within 180 days or 300 flight cycles after the effective date of this AD, whichever is later.
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Affected Aircraft
The Boeing Company Model 777-200LR and -300ER series airplanes equipped with GE90-100 series engines, as identified in Boeing Alert Service Bulletin 777-78A0070, dated November 20, 2008.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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