FAA issues Emergency AD on GE90 engines
after Boeing 777-300ER uncontained engine failure
20 January 2020
The U.S. FAA issued an Emergency Airworthiness Directive
(AD) in the wake of a Boeing 777-300ER uncontained engine failure
occurrence on October 20, 2019.
A Thai Airways Boeing 777-300ER airplane powered by GE
GE90-115B model turbofan engines experienced an uncontained high-pressure
turbine (HPT) failure that resulted in an aborted takeoff at
Bangkok-Suvarnabhumi International Airport. Debris impacted the aircraft
fuselage and the other engine.
To prevent a recurrence, the FAA requires the removal from service
of the GE GE90-110B1 or GE90-115B model turbofan engine interstage seal, part
number 2505M72P01 or 2448M33P01, from the affected engines.
The AD lists 16 engine serial numbers that are affected.
More information:
- AD 2020-01-55 (PDF)
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