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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.

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