BARTLESVILLE, OK, USA
N3411
CONVAIR 640 (340D)
THE CAPT WAS CROSS-FEEDING BOTH ENGINES FROM THE RIGHT TANK WHILE THE FIRST OFFICER (F/O) WAS FLYING, WITHOUT INFORMING THE F/O. THE CAPT THEN LEFT THE COCKPIT WHILE CROSS-FEEDING. BOTH TANK VALVES AND THE RIGHT BOOST PUMP WERE ON. THE RIGHT TANK RAN DRY, THE RIGHT ENGINE FAILED, AND THE PROP AUTOFEATHERED WHILE THE CAPT WAS ABSENT. THE CAPT RETURNED, TURNED ON THE LEFT BOOST PUMP, BUT LEFT THE RIGHT BOOST PUMP AND THE VALVES OPEN, AND ATTEMPTED TO RESTART THE RIGHT ENGINE. THE LEFT ENGINE THEN FAILED BUT THIS WAS NOT RECOGNIZED BY THE CREW. THE ELEC SYS FAILED DUE TO THE ATTEMPTED RESTARTS AND THE FACT THAT NON-ESSENTIAL EQUIPMENT WAS NOT TURNED OFF. THE CAPT DID NOT APPLY SUFFICIENT PULL TO THE EMERGENCY GEAR HANDLE TO LOWER THE GEAR MANUALLY. THE ACFT WAS LANDED ON A SHORT WET SOD RUNWAY, WITH THE GEAR AND FLAPS UP, AT A HIGH RATE OF SPEED. THE ACFT RAN OFF THE END OF THE RUNWAY, THROUGH A DITCH, ACROSS A ROAD, AND INTO TREES.
Source: NTSB Aviation Accident Database
Aviation Accidents App
In-Depth Access to Aviation Accident Reports
