AD 2001-03-02
Effective 02/21/2001 · Published 02/06/2001
Airworthiness Directives; Pratt & Whitney Canada Models PW306A and PW306B Turbofan Engines
Summary
This amendment adopts a new airworthiness directive (AD) that is applicable to Pratt & Whitney Canada (PWC) models PW306A and PW306B turbofan engines. This amendment requires removing compressor rotor 2nd, 3rd, and 4th stage drum assemblies and impellers from service before exceeding new, lower cyclic life limits. This amendment is prompted by the results of test analyses that indicate certain compressor rotor 2nd,…