Business · 13/09/2010

FAA Adopts New Airworthiness Directive for Pratt & Whitney PW4000 Series Engines

The Federal Aviation Administration (FAA) has issued a new airworthiness directive (AD) requiring initial and repetitive fluorescent penetrant inspections for cracks in the high-pressure compressor drum rotor disk assembly of certain Pratt & Whitney PW4000 series turbofan engines, following reports of cracked locking and loading slots.