What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
It was determined the aircraft entered a dynamic roll over after hard contact with the landing surface occurred. It is believed, the aircraft was subjected to an unanticipated gust of tail wind causing loss of tail rotor effectiveness (lte). It was further determined that neither a flight control continuity nor airworthiness check was conducted leaving an open question of possible mitigating airworthiness issues. Due to the findings of this secondary investigation it was decided to change the FAA recommendation to airman counseling vs a 44709. This now completed airman counseling included methods for wind direction determination via pilot observation techniques during all phases of flight. Which when covered, the airman stated these techniques were new to him and he was most appreciative of the counseling session.
As the FAA filed it
IT WAS DETERMINED THE AIRCRAFT ENTERED A DYNAMIC ROLL OVER AFTER HARD CONTACT WITH THE LANDING SURFACE OCCURRED. IT IS BELIEVED, THE AIRCRAFT WAS SUBJECTED TO AN UNANTICIPATED GUST OF TAIL WIND CAUSING LOSS OF TAIL ROTOR EFFECTIVENESS (LTE). IT WAS FURTHER DETERMINED THAT NEITHER A FLIGHT CONTROL CONTINUITY NOR AIRWORTHINESS CHECK WAS CONDUCTED LEAVING AN OPEN QUESTION OF POSSIBLE MITIGATING AIRWORTHINESS ISSUES. DUE TO THE FINDINGS OF THIS SECONDARY INVESTIGATION IT WAS DECIDED TO CHANGE THE FAA RECOMMENDATION TO AIRMAN COUNSELING VS A 44709. THIS NOW COMPLETED AIRMAN COUNSELING INCLUDED METHODS FOR WIND DIRECTION DETERMINATION VIA PILOT OBSERVATION TECHNIQUES DURING ALL PHASES OF FLIGHT. WHICH WHEN COVERED, THE AIRMAN STATED THESE TECHNIQUES WERE NEW TO HIM AND HE WAS MOST APPRECIATIVE OF THE COUNSELING SESSION.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.