NTSB Identification: SEA83LA194.
The docket is stored on NTSB microfiche number 21219.
Accident occurred Wednesday, August 24, 1983 in N. HAILEY, ID
Aircraft: ENSTROM 280C, registration: N999TP
Injuries: 2 Uninjured.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
THE PLT REPORTED THAT DURING TAKEOFF FROM A COUNTY ROAD (ELEVATION 5500 FT), HE ALLOWED THE RPM TO DROP 'BELOW GREEN.' REPORTEDLY, HE HAD A CHOICE OF EITHER SETTING THE HELICOPTER DOWN ON THE ROAD OR FLYING DOWN A SLOPE TO GAIN AIRSPEED. HE ELECTED TO LAND ON THE ROAD. HOWEVER, THE ROTOR RPM HAD SLOWED TO THE POINT THAT THE HELICOPTER TOUCHED DOWN HARD & THE ROTOR BLADES STRUCK THE TAIL BOOM. THE DENSITY ALTITUDE WAS APRX 8000 FT. NO MECHANICAL ENGINE MALFUNCTIONS WERE REPORTED.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:PREFLIGHT PLANNING/PREPARATION..INADEQUATE..PILOT IN COMMAND
The National Transportation Safety Board determines the probable cause(s) of this accident to be:ROTOR RPM..NOT MAINTAINED..PILOT IN COMMAND
WEATHER CONDITION..HIGH DENSITY ALTITUDE
ABORTED TAKEOFF..PERFORMED..PILOT IN COMMAND
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