The Marine Corps says it will not be grounding its fleet of MV-22B Osprey aircraft less than a day after the Air Force announced an indefinite halt, citing safety issues with the airplane's clutch.

Naval Air Systems Command] A safety issue involving the clutch of a MV-22B was the root cause of a crash last summer that killed all five crew members on board, according to the U.S. Marine Corps.

The Marine Corps identified the MV-22 Osprey part that was failing and causing dangerous hard clutch mishaps in 2010 -- more than a decade before the mechanical problem resulted in the deaths of ...