Runway excursion during cargo flight landing

Casualties unknown • Wainwright, AK, US

A wheel-equipped aircraft departed the left side of the runway and collided with a ditch during a cargo flight landing.

What happened

During a Title 14, CFR Part 135 cargo flight, an airline transport certificated pilot was performing a landing on runway 23. The pilot reported that the wind at the airport was from 180 degrees with a strength of 10 knots or greater. This wind condition was evidenced by white foam streaks on nearby lakes appearing perpendicular to the runway.

During the landing roll, the wheel-equipped airplane suddenly veered to the left. In an attempt to maintain the centerline, the pilot applied right rudder and right brake; however, the aircraft departed the left side of the runway. The aircraft subsequently rolled down an embankment and collided with a ditch. The impact resulted in structural damage to the fuselage, the left aileron, and the left main landing gear assembly. No injuries were reported.

Safety message

  • The pilot indicated that the accident could have been prevented by not attempting to land with the existing crosswind.

Probable cause

The pilot attempted to land the aircraft in crosswind conditions that exceeded his ability to maintain directional control during the landing roll.

Frequently asked questions

What happened in the 2006-09-02 DE Havilland DHC-3 accident near Wainwright, AK?

A wheel-equipped aircraft departed the left side of the runway and collided with a ditch during a cargo flight landing.

What aircraft was involved and where did it happen?

The accident on 2006-09-02 involved a DE Havilland DHC-3, registration N3125N, at Wainwright, AK.

What was the probable cause of the accident?

The pilot attempted to land the aircraft in crosswind conditions that exceeded his ability to maintain directional control during the landing roll.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20060921X01371. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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