AD 2020-05-24
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
The potential for a fire from entering the cowl or strut area, which could weaken T/R parts and result in reduced structural integrity of the T/R, possible separation of T/R parts during flight, and consequent damage to the airplane, injury to people, and damage to property on the ground.
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Required Actions
Installing a new insulation blanket on the latch beam firewall of each T/R half, and for those airplanes, an inspection to determine if the installed T/R has an affected part number and, if an affected part number is found, installation of a new insulation blanket.
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Compliance Time
Before further flight
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Affected Aircraft
The Boeing Company Model 777-200 series airplanes equipped with GE90-76B, -85B, -90B, or -94B engines.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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