What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Instructor initiated a simulated engine failure at approximately 400 feet AGL. The student did not respond quickly enough in lowering the collective even though the instructor told him to twice. The instructor then took the controls in an attempt to recover from the autorotation. Attempt was unseccessful. No indication of any aircraft malfunction.
As the FAA filed it
INSTRUCTOR INITIATED A SIMULATED ENGINE FAILURE AT APPROXIMATELY 400 FEET AGL. THE STUDENT DID NOT RESPOND QUICKLY ENOUGH IN LOWERING THE COLLECTIVE EVEN THOUGH THE INSTRUCTOR TOLD HIM TO TWICE. THE INSTRUCTOR THEN TOOK THE CONTROLS IN AN ATTEMPT TO RECOVER FROM THE AUTOROTATION. ATTEMPT WAS UNSECCESSFUL. NO INDICATION OF ANY AIRCRAFT MALFUNCTION.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.