BISMARCK, N.D. (AP) — The Air Force wing blamed for an embarrassing mix-up last year in which a bomber mistakenly flew to Louisiana armed with nuclear missiles has passed a new inspection, the military said Thursday.

Minot Air Force Base's 5th Bomb Wing was recertified in the handling of nuclear weapons after the inspection, which followed months of retraining and the sanctioning or outright replacement of some airmen.

"Basically, the wing was graded and found ready to perform their strategic mission," said Maj. Tom Crosson, an Air Force spokesman.

The military called it an "unacceptable mistake" last year when a B-52 bomber was armed with six nuclear-tipped cruise missiles in Minot and flown to Barksdale Air Force Base in Louisiana.

Gen. John D.W. Corley, head of Air Combat Command at Langley Air Force Base, Va., recertified the base on Monday, following a special weeklong inspection, said Crosson, a spokesman at Langley.