GARBERVILLE, CA, USA
N26186
HILLER UH-12C
THE STUDENT PLT HAD JUST TAKEN OFF ON A TRAINING X-COUNTRY FLT WHEN THE MAIN ROTOR TACHOMETER NEEDLE DECREASED BELOW THE ENGINE TACHOMETER NEEDLE. HE TURNED THE HELICOPTER TO RETURN TO THE ARPT BUT WAS UNABLE TO MAINTAIN ALTITUDE AND LANDED HARD IN ROUGH TERRAIN. AFTER THE ACCIDENT THE STUDENT PLT STATED THAT HE HAD OBSERVED OIL LEAKING IN THE VICINITY OF THE CENTRIFUGAL, DRY CLUTCH DURING THIS AND PREVIOUS PREFIGHT INSPECTIONS.
Source: NTSB Aviation Accident Database
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