Deadly Marine Osprey crash in 2022 caused by mechanical failure, investigation concludes

The crash during a routine flight in California killed 5 Marines and was caused by a mechanical failure.
Specific cause was a "dual hard clutch engagement" leading to engine failure, ruling out pilot or maintenance errors.
Since the crash, equipment changes have reduced risk of similar clutch failures by 99%.
Across all branches, the Osprey is a hybrid aircraft capable of vertical takeoff and landing.
There have been 5 fatal Osprey crashes since 2012, resulting in 16 deaths.