AD 2006-21-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 777-200 | Airworthiness Directives; Boeing Model 777-200 Series Airplanes Equipped with General Electric GE90-94B Engines |
| engine | General Electric | GE90-94B | Airworthiness Directives; Boeing Model 777-200 Series Airplanes Equipped with General Electric GE90-94B Engines |
Unsafe Condition
Thrust reversers (TRs) on GE90-94B engines have inner walls that could develop disbonding in the upper bifurcation radii, leading to TR failure and separation from the airplane during flight or a refused takeoff (RTO).
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the identification plate of the torque box on the thrust reversers to determine the part number. Investigate and take corrective actions if necessary, including replacing existing TRs with new or serviceable TRs and marking the service bulletin number on the identification plate.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 flight hours after the effective date of the AD.
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Affected Aircraft
Boeing Model 777-200 series airplanes equipped with General Electric GE90-94B engines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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