The NTSB, identifying a critical safety issue involving General Electric CF6-45/50 turbofan engines, on May 27 issued four urgent safety recommendations to the FAA. The safety board is asking the FAA to mandate operators of aircraft equipped with the engine model to immediately perform blade borescope inspections of the high-pressure turbine rotor at specific intervals until the current low-pressure turbine Stage 3 LPT S3 disk is redesigned and can be replaced. The NTSB is also ...


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