While on approach to land, the pilot reported to the air traffic control tower controller, “we exhausted fuel.” The airplane descended and crashed into a forested area about 1/2 mile from the airport. The pilot was cleared for an approach to runway 18R at the new destination. About 4 minutes after beginning the descent to the destination airport, the pilot requested to divert to a closer airport. Data from an on board GPS unit indicate that the airplane flew the return leg at an altitude of about 4,500 feet mean sea level for about 4 hours. The lost fuel was not replaced before the airplane departed. He estimated 5 to 6 gallons of fuel were lost before the sump seal was regained, but the exact amount of fuel lost could not be determined. During the preflight inspection, a line serviceman at the fixed based operator observed the right main fuel tank sump become stuck in the open position. After landing, the airplane was topped off with 156 gallons of fuel for the return flight.
#Cessna 421 crossfeed shut off valve code
The flight was performed by crew on aircraft without airworthiness certificate (violation of clause 1 article 35 of Air Code of RF and clause 1 of FAR-118).ĭuring the 3.5-hour flight preceding the accident flight, the airplane used about 156 gallons of the 196 gallons of usable fuel. Inadequate flight operation management, aircraft maintenance and efficiency discipline in "Aviator" Airclub" LLC, weak monitoring from senior staff over maintenance operation on accident prevention. Possible on position failure of fuel booster pump switches by crew before aircraft take-off. Non-feathering of switched-off engine propeller midair (non compliance with requirement of clause "2" of subsection 3 of «ENGINE INOPERATIVE PROCEDURE» section aircraft FOM). Touch-and-go landing and continued takeoff with engines trouble during run operation. Inadequate maintenance prior to aircraft familiarization flight after its long-term parking. Inadequate crew training for forthcoming flight. Flight operation with low level of fuel on board.
Most probably engines flameout midair was caused by fuel-air mixture depletion due to low level of fuel in aircraft tanks that in combination with its inadequate quality resulted in engines trouble.Ĭombination of the following factors could contribute to the accident: Most probably the accident with С-421 (FVSP) RA-0879G aircraft was caused by right and then left engine flameout during touch-and-go landing, flight speed decrease and aircraft stall entry resulted in aircraft ground impact with bank angle over 70°.
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