What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) The pilot back taxied runway 27 for takeoff on runway 27. The runway conditions at the time of the incident was fresh snow on hard pack snow and ice. There was no braking action reported. As the pilot maneuvered the aircraft for takeoff, the pilot made a left-hand 180 degree turn at the end of the runway, the pilot advanced throttle levers as the aircraft reached 45 knots, the aircraft began to drift to the right and go into a 160 degree spin to the right, as the aircraft begun the spin to the right, the PIC retarded both throttle levers, the aircraft continued in the right hand spin and drift to the right. Approximately 800 feet down runway 27, the aircraft made contact with a snowbank, located on the right side of runway, with the left main gear, left main gear collapsed, left prop strike and left wing sustained damage. The aircraft came to rest approximately 20 feet clear of runway 27.
As the FAA filed it
(-23) THE PILOT BACK TAXIED RUNWAY 27 FOR TAKEOFF ON RUNWAY 27. THE RUNWAY CONDITIONS AT THE TIME OF THE INCIDENT WAS FRESH SNOW ON HARD PACK SNOW AND ICE. THERE WAS NO BRAKING ACTION REPORTED. AS THE PILOT MANEUVERED THE AIRCRAFT FOR TAKEOFF, THE PILOT MADE A LEFT-HAND 180 DEGREE TURN AT THE END OF THE RUNWAY, THE PILOT ADVANCED THROTTLE LEVERS AS THE AIRCRAFT REACHED 45 KNOTS, THE AIRCRAFT BEGAN TO DRIFT TO THE RIGHT AND GO INTO A 160 DEGREE SPIN TO THE RIGHT, AS THE AIRCRAFT BEGUN THE SPIN TO THE RIGHT, THE PIC RETARDED BOTH THROTTLE LEVERS, THE AIRCRAFT CONTINUED IN THE RIGHT HAND SPIN AND DRIFT TO THE RIGHT. APPROXIMATELY 800 FEET DOWN RUNWAY 27, THE AIRCRAFT MADE CONTACT WITH A SNOWBANK, LOCATED ON THE RIGHT SIDE OF RUNWAY, WITH THE LEFT MAIN GEAR, LEFT MAIN GEAR COLLAPSED, LEFT PROP STRIKE AND LEFT WING SUSTAINED DAMAGE. THE AIRCRAFT CAME TO REST APPROXIMATELY 20 FEET CLEAR OF RUNWAY 27.