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FAA issues AD for ultrasonic inspection for cracks in HPT stage 1 and stage 2 disks on CF6-80 engines
30 August 2018

The U.S. Federal Aviation Administration (FAA) issued an Airworthiness Directive, requiring airlines to perform an ultrasonic inspection for cracks in High-Pressure Turbine (HPT) stage 1 and stage 2 disks on certain CF6-80 engines.

The AD, was published in the wake of the uncontained engine failure accident involving American Airlines flight 383 at Chicago-O’Hare International Airport on 28 October 2016. The aircraft, a Boeing 767-300ER suffered an experiencing an uncontained General Electric CF6-80C2 engine failure during takeoff. A fire erupted and consumed a large part of the wing. All 170 occupants survived.

Stage 2 high pressure turbine disk of AA383