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Fuel exhaustion leads to remote forced landing

By NTSB · August 20, 2019 ·

The pilot of the tailwheel-equipped Piper PA-12 was transporting hunters to a remote cabin in Alaska.

The flight was a 146-mile multileg flight, which departed with about 20 gallons of fuel, which he believed was sufficient for the approximate two-hour flight with about 30 minutes for fuel reserve.

The pilot reported that visual meteorological conditions prevailed during the flight, but he noted that, due to low stratus clouds and rain showers, he diverted from his planned flightpath. He added that, on the last leg of the flight, the unanticipated headwind component was about 15 to 25 mph.

About two miles from his destination, fuel exhaustion occurred, and the engine experienced a total loss of power.

He deviated from his destination to a river to execute a forced landing in Gulkana, Alaska.

While on the base-to-final leg on landing approach, the headwind changed to a tailwind, and the airplane landed in a left-wing-low orientation.

Postaccident examination of the airplane revealed substantial damage to the left wing.

The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Probable cause: The pilot’s inadequate in-flight fuel planning, which resulted in a loss of engine power due to fuel exhaustion.

NTSB Identification: GAA17CA511

This August 2017 accident report is provided by the National Transportation Safety Board. Published as an educational tool, it is intended to help pilots learn from the misfortunes of others.

About NTSB

The National Transportation Safety Board is an independent federal agency charged by Congress with investigating every civil aviation accident in the United States and significant events in the other modes of transportation, including railroad, transit, highway, marine, pipeline, and commercial space. It determines the probable causes of accidents and issues safety recommendations aimed at preventing future occurrences.

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Comments

  1. Sarah A says

    August 21, 2019 at 6:07 am

    Another case of a pilot running out of fuel with the same tired excuses. There are ways to determine when the fuel level is approaching critical and it does not involve the common fuel level sensors that are common to the GA fleet. At the moment, as far as I know, this solution is only available to the homebuilt market and there is at least one system on the market that uses an optical sensor to indicate when the fuel level drops below it. It only take a simple calibration to determine how much is left when the fuel drops below the sensor and that can trigger an alert that a pilot would be a fool to ignore. If such systems ever become available to the certified market (maybe an STC like the current crop of attitude displays) it could be a tremendous safety enhancement. At least it provides unambiguous fuel state information that is sorely needed.

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