NTSB Identification: LAX96LA153.
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Accident occurred Wednesday, April 03, 1996 in CHANDLER, AZ
Probable Cause Approval Date: 01/17/1997
Aircraft: NAVAL AIRCRAFT FACTORY N3N-3, registration: N45043
Injuries: 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 reported that he was in cruise when the fuel pressure went to zero. He attempted to restore the fuel pressure by using a hand wobble pump but was unsuccessful. The engine lost power and the aircraft nosed over during the forced landing in desert terrain. FAA inspectors examined the aircraft and found fuel in the tanks. The engine driven and hand wobble fuel pumps were removed from the engine and taken to an overhaul facility where they were installed in a calibrated test bench for a functional check. Both pumps failed the functional test and did not flow any fuel. Review of the maintenance records revealed no entry denoting an overhaul of the components at the time of the last engine overhaul. The history, calendar age, and total time of the pumps are unknown.

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

The failure of both the engine driven and hand wobble fuel pumps, which resulted in fuel starvation to the engine.

Full narrative available

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