NTSB Identification: FTW83LA168.
The docket is stored on NTSB microfiche number 22235.
Accident occurred Monday, March 28, 1983 in MOUNTAIN PARK, OK
Aircraft: PIPER PA-18A-150, registration: N6983D
Injuries: 1 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 PILOT STATED THAT HE WAS TAKING OFF TO THE NORTH ON A HIGHWAY FOR A CROP SPRAYING OPERATION. THE AIRCRAFT WAS LOADED WITH 720 POUNDS OF CHEMICAL AND 36 GAL OF FUEL. HE PERCEIVED A BREEZE FROM THE SOUTH BUT TOOK OFF NORTH BECAUSE OF A HILL TO THE SOUTH. THE AIRCRAFT WAS ROTATED AFTER ABOUT 1500 FEET WITH VEHICULAR TRAFFIC IN SIGHT. TO AVOID FLYING OVER THE TRAFFIC THE PILOT TURNED LEFT OVER A WHEAT FIELD BORDERED BY 20-30 FOOT TALL TREES. HE REALIZED HE WAS NOT MAINTAINING ALTITUDE AND BECAME CONCERNED WITH CLEARING THE TREES SO HE LOWERED THE FLAPS TO 20 DEGREES AND DUMPED HIS CHEMICAL LOAD. WHILE CONTINUING THE TURN TO AVOID THE TREES, THE LEFT WING CONTACTED THE GROUND CAUSING THE AIRCRAFT TO CARTWHEEL TO A STOP, UPRIGHT. AFTER THE ACCIDENT THE PILOT REALIZED THAT THE SOUTHERLY WIND HAD INCREASED TO ABOUT 10 MPH. AIRCRAFT WEIGHT AT THE TIME OF THE ACCIDENT WAS APRX 2229 POUNDS. ACCORDING TO THE AIRCRAFT LOG MAXIMUM GROSS WEIGHT AT TAKEOFF IS 2070 POUNDS.

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

AIRCRAFT WEIGHT AND BALANCE..EXCEEDED..PILOT IN COMMAND

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

WIND INFORMATION..DISREGARDED..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..TAILWIND



Contributing Factors

PREFLIGHT PLANNING/PREPARATION..POOR..PILOT IN COMMAND


Contributing Factors

VISUAL LOOKOUT..INADEQUATE..PILOT IN COMMAND


Contributing Factors

CLIMB..NOT MAINTAINED..PILOT IN COMMAND

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