AD 2001-04-10
Effective 04/06/2001 · Published 03/02/2001
Airworthiness Directives; Pratt & Whitney Canada (PWC) Model PW305 and PW305A Turbofan Engines
Summary
This amendment adopts a new airworthiness directive (AD), applicable to Pratt & Whitney Canada (PWC) Models PW305 and PW305A turbofan engines, that requires removing stage 4 low pressure turbine (LPT) disks from service before exceeding new, lower cyclic life limits. This amendment is prompted by the results of a spin pit test analysis which indicate that the stage 4 LPT disk does not have full published life. The a…