Air Force, Navy ground V-22 Osprey fleet days after fatal crash off Japan

Air Force Special Operations Command said that “preliminary investigation information” into a Nov. 29 crash that killed eight “indicates a potential materiel failure caused the mishap, but the underlying cause of the failure is unknown at this time.”

Air Force Special Operations Command said that “preliminary investigation information” into a Nov. 29 crash that killed eight “indicates a potential materiel failure caused the mishap, but the underlying cause of the failure is unknown at this time.”