LOWELL, OR, USA
N314RM
BELL 214B1
THE ACFT COLLIDED WITH HILLY TERRAIN DURING AN EMERGENCY AUTOROTATION LANDING ATTEMPT FOLLOWING A REPORTED ENG OVERSPEED. THE CREW REPORTED THERE WAS AN INDICATION OF ENG OVERSPEED WHICH THEY COULD NOT CONTROL. POST ACC EXAMINATIONREVEALED NO EVIDENCE OF OVERSPEED OR FAILURE OF ANY CONTROL DEVICES THAT WOULD MATERIALLY HAVE AFFECTED THE FLT CREWS ABILITY TO MAINTAIN ENG RPM AT THE PROPER AND/OR DESIRED RATE. ROTOR RPM DECAY WAS ALSO REPORTED BY THE FLT CREW EVEN WITH THE ENG AT THE REPORTED HIGH RPM. NO REASON FOR THE ALLEGED CONDITION WAS FOUND IN CONTINUITY OF THE PWR TRAIN IN AN EXAMINATION OF THE POWERPLANT & DRIVE TRAIN AFTER ENG SHUT DOWN BY GROUND PERSONNEL.
Source: NTSB Aviation Accident Database
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