FAA Proposes New Airworthiness Directive for Pratt & Whitney JT9D-59A, -70A, -7Q, and -7Q3 Turbofan Engines

Summary

The Federal Aviation Administration (FAA) is proposing a new airworthiness directive to inspect Pratt & Whitney JT9D-59A, -70A, -7Q, and -7Q3 turbofan engines for cracks in the high pressure turbine second stage airseal knife edges, in order to prevent engine failure and airplane damage