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ASN Wikibase Occurrence # 227188
Last updated: 2 December 2021
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Type:Silhouette image of generic CH75 model; specific model in this crash may look slightly different
Zenith CH750 STOL
Registration: N1972C
MSN: 75-10246
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Location:Jennings, LA -   United States of America
Departure airport:Jennings, LA (3R7)
Destination airport:Jennings, LA (3R7)
Investigating agency: NTSB
The private pilot had recently completed building the airplane and had flown it about 10 hours. He reported that, during that time, the airplane had experienced fuel flow issues; specifically, fuel was not flowing evenly from the wing tanks. Fuel was supplied to the engine from both tanks via gravity; the tanks were not individually selectable. To remedy the uneven fuel flows, the airplane kit manufacturer suggested that the pilot add snorkels to each vented fuel tank cap. The pilot did so; however, this did not correct the uneven fuel flow. The pilot tried several combinations before closing the vented caps completely and using only snorkels, which was the configuration of the fuel system on the day of the accident.
The pilot departed on the accident flight with 7 gallons of fuel in one tank and 8 gallons in the other. He flew for about one hour, and, while returning to the airport, he noted that the left fuel tank gauge was reading low and that the right fuel tank gauge was reading high. The engine subsequently experienced a total loss of power and the pilot performed an emergency landing in a field short of the runway.
Although the loss of engine power is consistent with fuel starvation, it could not be determined why the fuel in the right tank failed to supply the engine; nor could the underlying reason for the uneven fuel flow be determined based on the information available.

Probable Cause: A failure of the right fuel tank to supply fuel to the engine for reasons that could not be determined, which resulted in a total loss of engine power due to fuel starvation.



Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 2 years and 5 months
Download report: Final report

Revision history:

15-Jul-2019 18:02 ASN Update Bot Added

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