Air Force Special Operations Command has indefinitely grounded its fleet of CV-22 Ospreys in response to an unidentified "hard clutch" issue that has caused a total of four known incidents. AFSOC Commander Lt. Gen. Jim Slife issued the stand down order for the 52 Ospreys on Tuesday, AFSOC spokeswoman Lt. Col. Rebecca Heyse wrote in a statement to Inside Defense . Four incidents have occurred during flight since 2017, Heyse wrote, with two happening as recently as the past six...