NTSB Identification: FTW99LA267.
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Accident occurred Thursday, September 09, 1999 in VAN HORN, TX
Probable Cause Approval Date: 01/18/2001
Aircraft: Aeronca 11AC, registration: N9044E
Injuries: 1 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.

According to the pilot, who was the new owner of the airplane, the previous owner stated that the auxiliary fuel tank had not been used since he owned the airplane. The pilot filled the auxiliary fuel tank prior to the cross-country flight, sumped the tank twice for sediment and/or water, and found none. During the first two legs of the flight the auxiliary fuel tank appeared to be draining into the main fuel tank; however, during the third leg of the flight, the main fuel tank quantity went down to 1-2 gallons of fuel and the auxiliary fuel tank remained full. The pilot elected to make a precautionary landing in an open area. During the landing roll, the main landing gear impacted a rut and collapsed. A mechanic, who helped recover the airplane, stated that the auxiliary fuel tank had drained into the main fuel tank by the time they recovered the airplane a few days after the accident.

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

A restriction within the auxiliary fuel supply system and the rough terrain during the subsequent precautionary landing resulting on main gear collapse.

Full narrative available

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