The USAF does that a lot with downed airframes...
SR-71 # 978/ #2029 * Lost on 20 July 1972 at Kadena AB, Okinawa. Attempting to land with a severe crosswind, USAF Pilot: Capt. Dennis Bush had to abort the landing after deploying the braking chute. He jettisoned the chute and went around and attempted to land again, without the chute. The second attempt was too fast and the SR went off the end of the runway, ripping off the main landing gear and causing considerable damage to the underside of the aircraft. The RSO: Capt. James Fagg and pilot survived safely. This aircraft was known as"Rapid Rabbit". They tried to destroy the aircraft by burning it, but were not successful, it was buried near the end of the runway in a small hill, now known as Habu Mtn. - Credit:
www.blackbirds.net/sr71/srloc.html
I have heard rumor of other Blackbirds which were buried "on-site" when they had crashed or were damaged.
[Airplanes are] near perfect, all they lack is the ability to forgive.
— Richard Collins