What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) While on an IFR flight, approximately 11 miles east of Heber City, Utah, at 16,000 MSL the pilot informed ARTCC of loss of manifold pressure on the left engine. He requested a lower altitude. ATC cleared N289WB to 14,000 MSL and a turn to 340 heading. The pilot made a left 180 degree turn and descended to 13,200 MSL and flew on correct heading for 75 seconds then during the last radar hit makes an immediate right turn while descending to 11,400 MSL in a 12 second time frame of the radar sweep. This is the last known position of the aircraft by ATC. The aircraft was found within .4 miles of the last radar hit. The aircraft impacted vertically at the 9,000 level l of a mountain side.
As the FAA filed it
(-23) WHILE ON AN IFR FLIGHT, APPROXIMATELY 11 MILES EAST OF HEBER CITY, UTAH, AT 16,000 MSL THE PILOT INFORMED ARTCC OF LOSS OF MANIFOLD PRESSURE ON THE LEFT ENGINE. HE REQUESTED A LOWER ALTITUDE. ATC CLEARED N289WB TO 14,000 MSL AND A TURN TO 340 HEADING. THE PILOT MADE A LEFT 180 DEGREE TURN AND DESCENDED TO 13,200 MSL AND FLEW ON CORRECT HEADING FOR 75 SECONDS THEN DURING THE LAST RADAR HIT MAKES AN IMMEDIATE RIGHT TURN WHILE DESCENDING TO 11,400 MSL IN A 12 SECOND TIME FRAME OF THE RADAR SWEEP. THIS IS THE LAST KNOWN POSITION OF THE AIRCRAFT BY ATC. THE AIRCRAFT WAS FOUND WITHIN .4 MILES OF THE LAST RADAR HIT. THE AIRCRAFT IMPACTED VERTICALLY AT THE 9,000 LEVEL L OF A MOUNTAIN SIDE.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.