KETTLEMAN CITY, CA, USA
N4062G
BELL 47G
THE PILOT OF THE HELICOPTER EXPERIENCED A HARD LANDING AFTER THE LOSS OF ENGINE POWER DURING AN AERIAL APPLICATION AFTER 1 HOUR OF FLIGHT. THE PILOT DETERMINED HIS FUEL QUANTITY WAS SUFFICIENT FOR 1 HOUR AND 20 MINUTES OF OPERATION BUT DID NOT KNOW THE QUANTITY OF FUEL ON BOARD AT LAST TAKEOFF. THE PILOT REPORTED NO MECHANICAL FAILURES OR MALFUNCTIONS WITH THE AIRCRAFT PRIOR TO THE ACCIDENT.
A NON-MECHANICAL LOSS OF ENGINE POWER DUE TO FUEL EXHAUSTION BY THE PILOT'S IMPROPER CALCULATION OF THE FUEL SUPPLY AND SUBSEQUENT HARD LANDING.
Source: NTSB Aviation Accident Database
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