NTSB flags long-known engine-mount issue behind UPS crash
TL;DR
The NTSB says Boeing noted four prior failures of the MD-11’s engine-mount bearing race in 2011 but did not classify it as a safety-of-flight issue or require repairs; investigators linked the Louisville UPS crash to cracked engine-mount parts and ongoing maintenance questions on older airframes, with a final determination pending and echoes of a 1979 DC-10 disaster.
- Part that broke in deadly UPS cargo plane crash had failed 4 other times, NTSB says CBS News
- Boeing Knew About Flaws in UPS Plane That Crashed in Louisville, N.T.S.B. Says The New York Times
- NTSB investigators pinpoint failed aircraft part from UPS crash last year CNN
- Boeing knew of defect tied to fatal UPS plane crash in Louisville, NTSB finds WDRB
- Cracked part in fatal UPS crash flagged in 2011 by Boeing CNBC
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