What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Practicing hovering auto-rotations in grassy snow blown area. Drifting, left rear of skid dug into snowbank. While attempting to lift off, skid was dug in and helicopter rolled left.
As the FAA filed it
(-23) PRACTICING HOVERING AUTO-ROTATIONS IN GRASSY SNOW BLOWN AREA. DRIFTING, LEFT REAR OF SKID DUG INTO SNOWBANK. WHILE ATTEMPTING TO LIFT OFF, SKID WAS DUG IN AND HELICOPTER ROLLED LEFT.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.