What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) The student pilot was preparing for first solo flight. During the ground run-up the helicopter rotated on the pavement. Marks on the pavement indicated that the helicopter rotated two complete revolutions before the right skid shoe caught in a crevice in the pavement, causing a dynamic rollover. The main rotor and the horizontal stabilizer made contact with the asphalt. The pilot was unsure of his actions when the helicopter began spinning. He said he thought, but was not sure, that the collective was full down and engine and rotor turning at less than full operating RPM.
As the FAA filed it
(-23) THE STUDENT PILOT WAS PREPARING FOR FIRST SOLO FLIGHT. DURING THE GROUND RUN-UP THE HELICOPTER ROTATED ON THE PAVEMENT. MARKS ON THE PAVEMENT INDICATED THAT THE HELICOPTER ROTATED TWO COMPLETE REVOLUTIONS BEFORE THE RIGHT SKID SHOE CAUGHT IN A CREVICE IN THE PAVEMENT, CAUSING A DYNAMIC ROLLOVER. THE MAIN ROTOR AND THE HORIZONTAL STABILIZER MADE CONTACT WITH THE ASPHALT. THE PILOT WAS UNSURE OF HIS ACTIONS WHEN THE HELICOPTER BEGAN SPINNING. HE SAID HE THOUGHT, BUT WAS NOT SURE, THAT THE COLLECTIVE WAS FULL DOWN AND ENGINE AND ROTOR TURNING AT LESS THAN FULL OPERATING RPM.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.