NTSB Identification: LAX82FA077
14 CFR Part 137: Agricultural
Accident occurred Friday, February 19, 1982 in BRAWLEY, CA
Probable Cause Approval Date: 02/19/1983
Aircraft: BELL 47G2, registration: N4021A
Injuries: 1 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE PILOT VISUALLY CHECKED THE GAS TANK BEFORE TAKEOFF AND ESTIMATED THERE WAS ABOUT 1/4 TANK OF FUEL. HE THEN STARTED THE ENGINE AND HOVERED OVER TO THE WATER TANKER AND LOADED 60 GALLONS OF WATER IN THE SPRAY TANK IN ORDER TO CALIBRATE THE NUMBER OF GALLONS PER ACRE THE RIG SPRAYED. AFTER SPRAYING SOME WATER ON THE GROUND HE ASKED THE TANKER OPERATOR TO REFUEL HIS HELICOPTER BUT WAS TOLD THAT WOULD BE IMPOSSIBLE SINCE THE PUMP WAS INOPERABLE. THE MECHANIC LOOKED IN THE GAS TANK AND TOLD THE PILOT IT WAS OK TO MOVE TO THE GAS PUMP. THE PILOT PICKED UP THE HELICOPTER AND MOVED TO AN ADJACENT WHEAT FIELD TO SPRAY OUT THE REMAINING WATER AT WHICH TIME THE ENGINE FAILED TO PRODUCE POWER. THE HELICOPTER WAS AUTOROTATED FROM AN ESTIMATED 7 FEET.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FUEL SUPPLY..MISJUDGED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FLUID,FUEL..EXHAUSTION

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

JUDGMENT..POOR..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

TERRAIN CONDITION..CROP


Contributing Factors

AUTOROTATION..PERFORMED..PILOT IN COMMAND

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