FILE -In this image provided by the U.S. Navy, Aviation Boatswain's Mate 2nd Class Nicholas Hawkins, signals an MV-22 Osprey to land on the flight deck of the USS Abraham Lincoln in the Arabian Sea on May 17, 2019. The military has greenlighted its Osprey to return to flight, three months after a part failure led to the deaths of eight service members in a crash in Japan in November. Naval Air Systems Command announced it on Friday. (Mass Communication Specialist 3rd Class Amber Smalley/U.S. Navy via AP, File)
FILE - U.S. MV-22B Osprey transport aircraft are parked at the U.S. Marine Corps Air Station Futenma in Ginowan, south of Okinawa, southern Japan, Wednesday, Sept. 6, 2023. The military has greenlighted its Osprey to return to flight, three months after a part failure led to the deaths of eight service members in a crash in Japan in November. Naval Air Systems Command announced it on Friday. (AP Photo/Hiro Komae, File)
FILE - A U.S. military CV-22 Osprey takes off from Iwakuni base, Yamaguchi prefecture, western Japan, on July 4, 2018. Air Force Special Operations Command said Tuesday it knows what failed on its CV-22B Osprey leading to a November crash in Japan that killed eight service members. But it still does not know why the failure happened. Because of the crash almost the entire Osprey fleet, hundreds of aircraft across the Air Force, Marine Corps and Navy, has been grounded since Dec. 6. (Kyodo News via AP, File)