Pilot loses engine power after switching fuel tanks during climb

Casualties unknown • Wasilla, AK, US

A pilot experienced a complete loss of engine power approximately one minute after switching the fuel selector from the left tank to the right tank while climbing. The subsequent forced landing resulted in the aircraft's right wing striking powerlines.

What happened

The pilot departed the airstrip and climbed to an altitude of 500 feet above ground level (AGL). During this phase of flight, the pilot reduced engine power and activated the fuel transfer pump. The pilot then moved the fuel selector switch from the left fuel tank position to the right fuel tank position.

Approximately one minute after selecting the right fuel tank, the engine ceased producing power. The pilot attempted to restore engine operation by switching the fuel selector back to the left fuel tank; however, the engine could not be restarted. Consequently, the pilot initiated a forced landing. During this emergency descent and landing maneuver, the aircraft's right wing struck overhead powerlines.

The investigation

Following the accident, investigators conducted a thorough examination of the aircraft's engine and fuel system. A post-accident engine examination and run revealed no evidence of mechanical malfunction. Additionally, an inspection of the airplane's fuel system showed no abnormalities that would account for the loss of power.

Probable cause

The pilot's failure to ensure adequate fuel supply during the transfer process, which resulted in fuel exhaustion and a subsequent forced landing.

Frequently asked questions

What happened in the 1991-06-08 Piper PA-18-150 accident near Wasilla, AK?

A pilot experienced a complete loss of engine power approximately one minute after switching the fuel selector from the left tank to the right tank while climbing. The subsequent forced landing resulted in the aircraft's right wing striking powerlines.

What aircraft was involved and where did it happen?

The accident on 1991-06-08 involved a Piper PA-18-150, registration N4319Z, operated by David L. Grinde, at Wasilla, AK.

What was the probable cause of the accident?

The pilot's failure to ensure adequate fuel supply during the transfer process, which resulted in fuel exhaustion and a subsequent forced landing.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X17139. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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