Business · 10/09/1998

Pratt & Whitney PW4000 Series Turbofan Engines: New Airworthiness Directive Adopted

The Federal Aviation Administration (FAA) has issued a new airworthiness directive (AD) requiring inspections and modifications to Pratt & Whitney PW4000 series turbofan engines to prevent cracking of 2nd stage high pressure turbine (HPT) rotating airseals, which could lead to engine failure and aircraft damage.