What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) During shutdown from a training flight, the pilot felt an unusual airframe vibration. The cyclic stick was at the normal upright position for shutdown. The main rotor contacted the nr 5 section of tail rotor drive shaft. Substantial damage to the tailrotor drive shaft, tail boom and hangar bearing support and 2 ea main rotor blades.
As the FAA filed it
(-23) DURING SHUTDOWN FROM A TRAINING FLIGHT, THE PILOT FELT AN UNUSUAL AIRFRAME VIBRATION. THE CYCLIC STICK WAS AT THE NORMAL UPRIGHT POSITION FOR SHUTDOWN. THE MAIN ROTOR CONTACTED THE NR 5 SECTION OF TAIL ROTOR DRIVE SHAFT. SUBSTANTIAL DAMAGE TO THE TAILROTOR DRIVE SHAFT, TAIL BOOM AND HANGAR BEARING SUPPORT AND 2 EA MAIN ROTOR BLADES.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.