An Air Combat Command accident investigation board found that the bearing assembly of the No. 4 engine on an F-16 that crashed in Utah last March failed, leading to a compressor stall, vibrations, and loss of thrust. The pilot ejected safely after deciding he wasn’t close enough to glide to the nearest airfield. He restarted the engine once but had such poor engine thrust he couldn’t maintain level flight.
Raytheon, a division of defense giant RTX, recently announced a multiyear deal with the Pentagon to increase annual production of the Air Force’s primary dogfighting missile by more than 50 percent from two years ago.


