20111028025799A

Accident · Substantial damage

FAA accident report · Cessna A185F · Bend, OR · October 28, 2011

Date
October 28, 2011 · 13:47 local
Place
Bend, OR
Airport
Bend Municipal
Phase of flight
Cruise/Level Flight
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N520YH
NTSB investigation
NTSBWPR12LA023
Reported as
Cessna A185F
Reported engine
Lycoming IO-520 series
People aboard
3
Fatal injuries
0
Other injuries
0
Pilot’s certificate
Airline transport
Pilot’s flight hours
3,819 total838 in this make and model30 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

10/30/2011 - Aircraft enroute from shepp airfield near salmon, id to Bend, OR lost power approximately 15 miles east of Bend, OR (S07). Pilot was was unable to re-start engine in flight. Aircraft landed on a service road in a field. On ground rollout, left wheel impacted debris on the ground and caused aircraft to flip over longitudinally. Aircraft came to rest in an inverted position. The pilot and two passengers were able to exit aircraft with no reported injuries. During subsequent investigations in was determined that the aircraft fuel slector valve was in the "left" fuel tank position. The pilot estimated that he had approximately 25 gallons of fuel in each tank at departure from shepp. The takeoff was conducted with the fuel tank selector in the "both" position. Approximately 20 minutes after takeoff, the pilot selected the "left" tank to correct a slight fuel imbalance in the tanks. The pilot stated that he neglected to reselect "both" during the remainder of the flight. During the post accident investigation, approximately 23 gallons of fuel were recovered from the right wing and approximately 6 gallons wer recovered from the left wing. The aircraft flight manual indictes that there are approximately 3 gallons (per side) of unusable fuel in the aircraft's fuel system. The aircraft manufacturer reported that if the aircraft were left in an inverted position for an extended period of time, it was probable that several gallons of fuel could have transferred between tanks due to gravity feed. The aircraft was disassembled and relocated to a storage area pending completion of the NTSB investigation.

As the FAA filed it

10/30/2011 - AIRCRAFT ENROUTE FROM SHEPP AIRFIELD NEAR SALMON, ID TO BEND, OR LOST POWER APPROXIMATELY 15 MILES EAST OF BEND, OR (S07). PILOT WAS WAS UNABLE TO RE-START ENGINE IN FLIGHT. AIRCRAFT LANDED ON A SERVICE ROAD IN A FIELD. ON GROUND ROLLOUT, LEFT WHEEL IMPACTED DEBRIS ON THE GROUND AND CAUSED AIRCRAFT TO FLIP OVER LONGITUDINALLY. AIRCRAFT CAME TO REST IN AN INVERTED POSITION. THE PILOT AND TWO PASSENGERS WERE ABLE TO EXIT AIRCRAFT WITH NO REPORTED INJURIES.DURING SUBSEQUENT INVESTIGATIONS IN WAS DETERMINED THAT THE AIRCRAFT FUEL SLECTOR VALVE WAS IN THE "LEFT" FUEL TANK POSITION. THE PILOT ESTIMATED THAT HE HAD APPROXIMATELY 25 GALLONS OF FUEL IN EACH TANK AT DEPARTURE FROM SHEPP. THE TAKEOFF WAS CONDUCTED WITH THE FUEL TANK SELECTOR IN THE "BOTH" POSITION. APPROXIMATELY 20 MINUTES AFTER TAKEOFF, THE PILOT SELECTED THE "LEFT" TANK TO CORRECT A SLIGHT FUEL IMBALANCE IN THE TANKS.THE PILOT STATED THAT HE NEGLECTED TO RESELECT "BOTH" DURING THE REMAINDER OF THE FLIGHT.DURING THE POST ACCIDENT INVESTIGATION, APPROXIMATELY 23 GALLONS OF FUEL WERE RECOVERED FROM THE RIGHT WING AND APPROXIMATELY 6 GALLONS WER RECOVERED FROM THE LEFT WING. THE AIRCRAFT FLIGHT MANUAL INDICTES THAT THERE ARE APPROXIMATELY 3 GALLONS (PER SIDE) OF UNUSABLE FUEL IN THE AIRCRAFT'S FUEL SYSTEM. THE AIRCRAFT MANUFACTURER REPORTED THAT IF THE AIRCRAFT WERE LEFT IN AN INVERTED POSITION FOR AN EXTENDED PERIOD OF TIME, IT WAS PROBABLE THAT SEVERAL GALLONS OF FUEL COULD HAVE TRANSFERRED BETWEEN TANKS DUE TO GRAVITY FEED. THE AIRCRAFT WAS DISASSEMBLED AND RELOCATED TO A STORAGE AREA PENDING COMPLETION OF THE NTSB INVESTIGATION.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.