No fatalities

Departure Accident Following Wind Shift at Off-Airport Site (N4714F)

Tyonek, AK, US

On August 29, 2005, a Cessna 172 (registration N4714F) operated by Great Northern Air Llc was involved in an aviation accident near Tyonek, AK. No fatalities were reported. Investigators recorded the probable cause as: A sudden wind shift after takeoff caused the airplane to descend into a creek, as reported by the pilot. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 1 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

A commercial pilot and three passengers departed from a 1200-foot gravel off-airport site. Just after takeoff, a sudden wind shift caused the airplane to descend into a creek, resulting in structural damage to the wings, fuselage, and horizontal stabilizer. The pilot reported no preaccident mechanical anomalies.

Accident Overview

A commercial pilot and three passengers were departing from a 1200-foot long, gravel-covered off-airport site. According to the pilot, just after takeoff, as the airplane began to climb, a sudden wind shift forced the airplane to descend into a creek located at the departure end of the site. The creek was directly ahead of the takeoff path, and the airplane impacted it after losing altitude due to the wind shift.

Damage Sustained

The airplane sustained structural damage to the wings, fuselage, and horizontal stabilizer. The damage was a result of the impact with the creek.

Pilot Statement

The pilot reported that there were no preaccident mechanical anomalies with the airplane. The airplane was functioning normally during the takeoff and initial climb phase.

Departure Site

The off-airport site was 1200 feet in length and covered with gravel. The creek at the departure end was an obstacle that the airplane encountered after the wind shift.

Probable cause

A sudden wind shift after takeoff caused the airplane to descend into a creek, as reported by the pilot.

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Frequently asked questions

What happened in the 29 Aug 2005 Cessna 172 accident near Tyonek, AK?

A commercial pilot and three passengers departed from a 1200-foot gravel off-airport site. Just after takeoff, a sudden wind shift caused the airplane to descend into a creek, resulting in structural damage to the wings, fuselage, and horizontal stabilizer. The pilot reported no preaccident mechanical anomalies.

Were there any fatalities in the 29 Aug 2005 Cessna 172 accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 29 Aug 2005 involved a Cessna 172, registration N4714F, operated by Great Northern Air Llc, at Tyonek, AK.

What was the probable cause of the accident?

A sudden wind shift after takeoff caused the airplane to descend into a creek, as reported by the pilot.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20050930X01552. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.