Regulacje i polityka gospodarcza · 25/10/2000

Pratt & Whitney to Implement Airworthiness Directive for PW4000 Series Engines on Boeing 747, 767, and MD-11

The Federal Aviation Administration (FAA) has adopted a new airworthiness directive requiring operators to limit the use of Pratt & Whitney PW4000 series engines with a high pressure compressor (HPC) cutback stator (CBS) configuration to one per aircraft, and prohibits the installation of modified engines with HPC modules after a specified date to prevent engine power loss due to HPC surges.