The Air Force said the first crash of a B-2 stealth bomber was caused by moisture in sensors and estimated the loss of the aircraft at $1.4 billion.
The Air Force stopped flying B-2 stealth bombers for two months after the crash.
The crash probably could have been avoided if knowledge of a technique to evaporate the moisture had been disseminated throughout the B-2 program, Maj. Gen. Floyd L. Carpenter, who headed an accident investigation board, said Thursday.
The Spirit of Kansas abruptly pitched up, rolled and yawed to the left February 23 before plunging to the ground at Andersen Air Force Base on the island of Guam. Both pilots ejected safely just after the left wing made contact with the ground; it was the first crash since the maiden B-2 flights nearly 20 years ago.