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Metal fatigue apparently played role in engine explosion on United Flight 328 over Denver, NTSB chief says – CBS News
NTSB chief Robert Sumwalt says investigators believe it played a role. The mid-air explosion sent debris down onto a Denver suburb.
Metal fatigue apparently played a role in the engine explosion on a United Airlines flight over Denver Saturday, National Transportation Safety Board Chairman Robert Sumwalt said in a virtual news conference Monday night. The explosion on Flight 328 sent pieces of the Pratt & Whitney PW4000 engine casing raining down on suburban neighborhoods.
According to CBS Denver, Sumwalt said the engine made a loud bang and started vibrating about four minutes after takeoff from Denver International Airport….
