NTSB Identification: DEN87LA009.
The docket is stored on NTSB microfiche number 31740.
Accident occurred Friday, October 24, 1986 in GREYBULL, WY
Aircraft: CESSNA TU206G, registration: N6277Z
Injuries: 2 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 PLT DEPARTED AURORA, CO AT 1000 EN ROUTE TO GREAT FALLS, MT AT 8000 FT MSL. AT 1237 THE PLT ADVISED WORLAND FSS THAT THE ENG HAD LOST POWER AND HE WAS GOING DOWN. THE PLT SAID THAT ON FINAL APCH HE HAD TO PULL UP TO AVOID POWER LINES. THE ACFT STALLED AND NOSED INTO GROUND. THE CRASH SITE WAS 5 MI EAST OF GREYBULL, WY. THE FUEL SELECTOR VALVE WAS POSITIONED ON THE LEFT TANK. THE LEFT TANK WAS FOUND TO BE EMPTY AND THE RIGHT TANK WAS FULL. THE ACFT HAS 2 FUEL TANKS, EACH HOLDS 46 GALS (44 USABLE). THE DISTANCE FROM AURORA TO GREYBULL IS APRX 354 NAUTICAL MI. TIME EN ROUTE WAS APRX 2 HRS, 37 MIN. THIS COMPUTES TO AVERAGE 136.2 KTS GROUND SPEED. PERFORMANCE CHART FOR 8000 FOOT PRESSURE ALT GIVES A NUMBER OF POWER SETTINGS THAT WILL YIELD AVERAGE FUEL CONSUMPTION RATES BETWEEN 10.3 AND 17.8 GPH AND AVERAGE TRUE AIRSPEED BETWEEN 111 AND 151 KTS.

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

FUEL SYSTEM,SELECTOR/VALVE..NOT SWITCHED

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

FUEL TANK SELECTOR POSITION..DELAYED..PILOT IN COMMAND

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

STALL..INADVERTENT..PILOT IN COMMAND

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

FLUID,FUEL..STARVATION


Contributing Factors

TERRAIN CONDITION..OPEN FIELD


Contributing Factors

EMERGENCY PROCEDURE..PERFORMED..PILOT IN COMMAND


Contributing Factors

OBJECT..WIRE,TRANSMISSION


Contributing Factors

FUEL SUPPLY..INATTENTIVE..PILOT IN COMMAND


Contributing Factors

PULL-UP..PERFORMED..PILOT IN COMMAND


Contributing Factors

FUEL CONSUMPTION CALCULATIONS..MISJUDGED..PILOT IN COMMAND


Contributing Factors

IN-FLIGHT PLANNING/DECISION..POOR..PILOT IN COMMAND

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