Maj. Eric "Doc" Spendlove's body remains missing.
Lawmakers asked the Government Accountability Office to look into the fleet's history in December.
More than 50 troops have died in Osprey accidents since the early 1990s.
By Tara Copp, AP
The search continues for the remains of two more missing airmen.
By Tara Copp, AP
The Air Force has recovered three bodies, is in the process of recovering another three troops and is still searching for two more.
American and Japanese crews continue to search for two people who are still missing.
Several military and civilian search-and-rescue units are scouring the water and coastline around the island of Yakushima, Japan.
A brief history of the iconic, sometimes deadly, V-22.
Tokyo has asked the U.S. military to ground all Ospreys operating in Japan except for those searching for the downed airmen.
By Tara Copp, AP
The crew was conducting a “routine air refueling mission” during a training sortie when their aircraft suffered a mishap, the military said Sunday.
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