FAA Proposes New Airworthiness Directive for Pratt & Whitney PW4000 Series Turbofan Engines

Summary

The Federal Aviation Administration (FAA) has proposed a new airworthiness directive (AD) for 23 specific Pratt & Whitney PW4000 series turbofan engines, requiring initial and repetitive fluorescent penetrant inspections to detect cracks in the high-pressure compressor drum rotor disk assembly, which could lead to engine failure and damage to the aircraft.