1964 Savage Mountain B-52 crash

The 1964 Savage Mountain B-52 crash was a U.S. military nuclear accident in which a Cold War bomber's vertical stabilizer broke off in winter storm turbulence. The two nuclear bombs being ferried were found "relatively intact in the middle of the wreckage", according to a later U.S. Department of Defense summary, and after Fort Meade's 28th Ordnance Detachment secured them, the bombs were removed two days later to the Cumberland Municipal Airport.

Source: Wikipedia — 1964 Savage Mountain B-52 crash (CC BY-SA 4.0)