What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) On January 3, 2007 at approx 1445 hrs local time, aircraft N113JD, rotorway/exec 162F departed paola, Kansas (miami county airport K81), with one passenger on board. Approximately 15 minutes in flight (at 1600 ft MSL), they heard a pop noise from behind followed by an uncommanded 90 degree turn to the left. Pilot immediately lowered collective and entered an autorotation. While pointed toward a clear pasture, another noise was heard followed again by another uncommanded 90 degree LH turn. At that time they were directly 50 ft above some trees. Pilot flared above trees and allowed aircraft to settle on top of the trees as he raised the collective. About 10-15 ft above the ground, the aircraft rolled to the left and came to rest upside down. The pilot suffered minor injuries (broken left leg). The passenger was not injured.
As the FAA filed it
(-23) ON JANUARY 3, 2007 AT APPROX 1445 HRS LOCAL TIME, AIRCRAFT N113JD, ROTORWAY/EXEC 162F DEPARTED PAOLA, KANSAS (MIAMI COUNTY AIRPORT K81), WITH ONE PASSENGER ON BOARD. APPROXIMATELY 15 MINUTES IN FLIGHT (AT 1600 FT MSL), THEY HEARD A POP NOISE FROM BEHIND FOLLOWED BY AN UNCOMMANDED 90 DEGREE TURN TO THE LEFT. PILOT IMMEDIATELY LOWERED COLLECTIVE AND ENTERED AN AUTOROTATION. WHILE POINTED TOWARD A CLEAR PASTURE, ANOTHER NOISE WAS HEARD FOLLOWED AGAIN BY ANOTHER UNCOMMANDED 90 DEGREE LH TURN. AT THAT TIME THEY WERE DIRECTLY 50 FT ABOVE SOME TREES. PILOT FLARED ABOVE TREES AND ALLOWED AIRCRAFT TO SETTLE ON TOP OF THE TREES AS HE RAISED THE COLLECTIVE. ABOUT 10-15 FT ABOVE THE GROUND, THE AIRCRAFT ROLLED TO THE LEFT AND CAME TO REST UPSIDE DOWN. THE PILOT SUFFERED MINOR INJURIES (BROKEN LEFT LEG). THE PASSENGER WAS NOT INJURED.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.