What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
During a demonstration practice engine out autorotation, the pilot mismanaged the controls resulting in low rotor RPM and slower than normal airspeedpilot used an incorrect procedure to attempt to regain rotor RPM without success, at about 200 feet above the ground an attempted a power recovery was tried wit insufficient power to overcome the slow rotor speed. The aircraft hit hard tail low resulting in striking the tail stinger onthe ground and the rotor blades chopping off the tail boom. The aircraft started a left turn on the skids, resulting in the right skid collapsing, the fuselage nose scraping the ground. The aircraft then tuned right about 90 degrees onto its right side with the main rotor blades striking the gound about one time each before coming to rest.
As the FAA filed it
DURING A DEMONSTRATION PRACTICE ENGINE OUT AUTOROTATION, THE PILOT MISMANAGED THE CONTROLS RESULTING IN LOW ROTOR RPM AND SLOWER THAN NORMAL AIRSPEEDPILOT USED AN INCORRECT PROCEDURE TO ATTEMPT TO REGAIN ROTOR RPM WITHOUT SUCCESS, AT ABOUT 200 FEET ABOVE THE GROUND AN ATTEMPTED A POWER RECOVERY WAS TRIED WIT INSUFFICIENT POWER TO OVERCOME THE SLOW ROTOR SPEED.THE AIRCRAFT HIT HARD TAIL LOW RESULTING IN STRIKING THE TAIL STINGER ONTHE GROUND AND THE ROTOR BLADES CHOPPING OFF THE TAIL BOOM.THE AIRCRAFT STARTED A LEFT TURN ON THE SKIDS, RESULTING IN THE RIGHT SKID COLLAPSING, THE FUSELAGE NOSE SCRAPING THE GROUND. THE AIRCRAFT THEN TUNED RIGHT ABOUT 90 DEGREES ONTO ITS RIGHT SIDE WITH THE MAIN ROTOR BLADES STRIKING THE GOUND ABOUT ONE TIME EACH BEFORE COMING TO REST.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.