HOOD RIVER, OR, USA
N756XW
CESSNA TU206G
THE ENG FAILED AS THE PLT SWITCHED FROM THE LEFT TO RIGHT TANK WHILE TURNING BASE. HE TURNED ON THE BOOST PUMP BUT THE ENG DID NOT START. HE SWITCHED BACK TO THE LEFT TANK & TURNED ON THE HIGH BOOST. THE ENG FAILED TO START & THE ACFT CRASHED INTO AN APPLE ORCHARD. THE PASSENGER (ALSO A PLT) STATED THAT THE PLT ATTEMPTED TO START THE ENG WITH FULL THROTTLE, FULL MIXTURE & BOOST PUMP ON. IN THIS MODEL ACFT, IF THE ENG-DRIVEN FUEL PUMP IS FUNCTIONING & THE AUX PUMP SWITCH IS PLACED IN THE ON POSITION, AN EXCESSIVELY RICH FUEL/AIR RATIO IS PRODUCED UNLESS THE MIXTURE IS LEANED.
Source: NTSB Aviation Accident Database
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