NTSB Identification: DEN84FTG01.
The docket is stored on NTSB microfiche number 23961.
Accident occurred Thursday, March 22, 1984 in SAWYER, ND
Aircraft: LEE M. BROWN TATERBUG SB-1, registration: N9026T
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 PLT SWITCHED FROM MAIN TANK TO AUX TANK, & ABOUT 10 MINUTES LATER, THE ENG BEGAN LOSING POWER SWITCHING BACK TO THE MAIN TANK DID NOT HELP. THE ENGINE CONTINUED RUNNING BUT AT GREATLY REDUCED POWER. A FORCED LANDING WAS MADE IN A FROZEN STUBBLE FIELD. THE PLT SAID HE DRAINED ABOUT 3 OUNCES OF WATER OUT OF THE MAIN FUEL STRAINER AFTER THE ACCIDENT. NO FUEL LINES WERE BROKEN AND NO TANKS RUPTURED. INVESTIGATORS FOUND VERY LITTLE FUEL IN THE CARBURETOR AND WHAT WAS FOUND WAS CONTAMINATED WITH DIRT AND DEBRIS. THE PLT SAID THAT THE FUEL HAD BEEN IN THE AUX TANK SINCE LAST FALL AND HE HAD NOT DRAINED THE AUX TANK SUMP PRIOR TO FLYING. THE FUEL USED WAS A COMBINATION OF AVIATION AND AUTOMOTIVE FUEL.

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

AIRCRAFT PREFLIGHT..INADEQUATE..PILOT IN COMMAND

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

FLUID,FUEL..CONTAMINATION

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

FLUID,FUEL..WATER

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