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Pratt & Whitney retires PW4000 series aircraft engines
Washington, USA - This is a premature maintenance to replace turbine hubs
Today March 23 the US Federal Aviation Administration (FAA) is going to propose that operators of 954 Pratt & Whitney PW4000-series start maintenance operation prematurely. This decision stems from a Pratt & Whitney analysis which has reported that the original grain size requirement specified on the HPT front hub drawing was too large and must be replaced, since it may not be sufficient to meet...
AVIONEWS - World Aeronautical Press Agency - 1138927
AVIONEWS - World Aeronautical Press Agency
AVIONEWS - World Aeronautical Press Agency