The crash of a UPS MD-11 freighter during takeoff from Louisville has rapidly shifted from a mystery to a focused hunt for answers inside the left engine and the hardware that held it to the wing.

US investigators have yet to determine why a UPS Boeing MD-11F failed to climb away from Louisville after shedding an engine on take-off. Preliminary findings from the National Transportation Safety ...

Federal safety investigators opened two days of hearings Tuesday to examine why the engine flew off a UPS cargo plane last year, causing a crash that killed 15 people, and why Boeing didn't address an ...