The NTSB on Oct. 16 issued an urgent recommendation to the FAA to require that all Pratt & Whitney PW2037 engines be removed from service for inspection of the second stage turbine hubs when they have accumulated 10,880 flight hours or 4,392 cycles. The move comes out of an ongoing investigation of an uncontained failure on the second stage hub of a Delta 757-200 that occurred Aug. 6. The FAA is now working with Pratt & Whitney to identify which engines will be affected and ...

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