What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
On 8/18/2015, flight instructor and his student were practicing an autorotation at 4700 ft. when the engine quit and wouldn't restart. Helicopter continued autorotaing with no engine power and made a hard landing. Helicopter had substantual damage and student suffered minor injuries.
As the FAA filed it
ON 8/18/2015, FLIGHT INSTRUCTOR AND HIS STUDENT WERE PRACTICING AN AUTOROTATION AT 4700 FT. WHEN THE ENGINE QUIT AND WOULDN'T RESTART. HELICOPTER CONTINUED AUTOROTAING WITH NO ENGINE POWER AND MADE A HARD LANDING. HELICOPTER HAD SUBSTANTUAL DAMAGE AND STUDENT SUFFERED MINOR INJURIES.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.
Other reports on N17YS · 2
Matched to the same aircraft by N-number and date.