CALHAN, CO, USA
N939PC
CRESAWN PITTS S1-C
THE AIRPLANE WAS OBSERVED PERFORMING AEROBATICS - SPIN, IMMELMAN, AND TAIL SLIDE - WITHIN AN APPROVED AEROBATIC BOX. IT SUBSEQUENTLY IMPACTED THE GROUND IN AN INVERTED ATTITUDE WITH LITTLE OR NO ROTATION OR FORWARD SPEED.
THE PILOT'S FAILURE TO ATTAIN ADEQUATE AIRCRAFT CONTROL TO AVOID TERRAIN COLLISION.
Source: NTSB Aviation Accident Database
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