Pratt & Whitney JT9D Series Turbofan Engines: Withdrawal of Airworthiness Directive NPRM

Summary

The Federal Aviation Administration (FAA) withdraws a proposed rulemaking (NPRM) for a new airworthiness directive (AD) for Pratt & Whitney JT9D series turbofan engines, as the agency determined that additional turbine exhaust case (TEC) assemblies can be installed as a compliance option through the alternate method of compliance (AMOC) procedure.