NTSB Identification: ERA09LA441
14 CFR Part 91: General Aviation
Accident occurred Monday, August 03, 2009 in Suffolk, VA
Probable Cause Approval Date: 12/15/2009
Aircraft: MOONEY M20F, registration: N3549N
Injuries: 1 Serious,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 pilot stated that he departed with ¼ tank of fuel in the right and left fuel tanks. He said that he was flying around for approximately an hour before he began "buzzing" his house. The engine then lost power and he made an emergency forced landing on a road when, during rollout, the airplane collided with a tree. Examination of the fuel system revealed that both fuel tanks were empty and were not breached. Further examination revealed that the airplane was equipped with electronic fuel quantity indicators. Examination of the electronic fuel indicators revealed that both indicators were not functioning correctly. Review of the Dual Fuel Level (FL-2) operating and installation instructions stated: "do not solely rely on the FL-2 to determine the fuel levels in the fuel tanks." Examination of the airframe and engine by a Federal Aviation Administration inspector revealed no evidence of preimpact mechanical failure or malfunction.

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

A loss of engine power due to fuel exhaustion as a result of the pilot’s failure to accurately calculate the fuel required for the flight. Contributing to the accident was a malfunction of the fuel quantity indicators.

Full narrative available

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