Transport i lotnictwo · 06/05/1996

Pratt & Whitney Proposes New Airworthiness Directive for JT9D Series Turbofan Engines

The Federal Aviation Administration (FAA) is considering a new airworthiness directive (AD) that would require inspections and replacement of cracked high-pressure compressor disks in Pratt & Whitney JT9D series turbofan engines to prevent engine failure and aircraft damage.