The PW4000 number two engine's fan-blade failure mere minutes after United's flight took off for Honolulu resulted in a damaged engine, an in-flight engine fire, and damage to the airplane. Combined with other safety factors, the agency has determined that carriers have to conduct a thermal ...
an anti-vortex tube of a PW4000 engine, which mainly solves the problem that the borescope tool for flaw detection of the locking groove of the anti-vortex tube for the current PW4000 engine is expensive in price and long in ordering cycle and cannot be connected to complete borescope work....