Pilot disorientation and incorrect heading lead to ground loop during emergency landing

Casualties unknown • Telida, AK, US

A pilot experiencing disorientation due to heavy winds landed at an unplanned airstrip after receiving an incorrect heading from Flight Service, resulting in a ground loop.

What happened

During the flight, the pilot encountered enroute winds that were stronger than anticipated, which led to a state of disorientation. Recognizing the situation and noting that the aircraft was low on fuel, the pilot contacted Flight Service Station (FSS) personnel to request ADF steer assistance to an airport.

However, the FSS specialist provided an incorrect heading that directed the aircraft further away from the intended destination. Although the specialist made multiple attempts to re-establish contact with the pilot to correct this navigational error, all attempts were unsuccessful.

Approximately 43 minutes later, facing near fuel exhaustion, the pilot performed an emergency landing at a small airstrip located roughly 70 miles northeast of the original destination. During the landing phase, the aircraft encountered an estimated 35-knot crosswind. This wind caused the pilot to lose directional control, resulting in a ground loop of the airplane. The aircraft and crew were not injured.

Probable cause

The pilot became disoriented due to unexpected enroute winds and was subsequently directed away from his destination by an incorrect heading provided by the Flight Service Station specialist.

Frequently asked questions

What happened in the 1991-09-16 Cessna 180 accident near Telida, AK?

A pilot experiencing disorientation due to heavy winds landed at an unplanned airstrip after receiving an incorrect heading from Flight Service, resulting in a ground loop.

What aircraft was involved and where did it happen?

The accident on 1991-09-16 involved a Cessna 180, registration N9640B, operated by Patrick S. Twohy, at Telida, AK.

What was the probable cause of the accident?

The pilot became disoriented due to unexpected enroute winds and was subsequently directed away from his destination by an incorrect heading provided by the Flight Service Station specialist.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X18007. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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