1999-04-10: Piper PA-18 — Boulder, MT

Casualties unknown • Boulder, MT, US

Probable cause

The pilot-in-command's failure to maintain directional control after encountering a dust-devil during landing rollout, resulting in a ground loop and collapse of the main landing gear. Factors include the dust-devil.

— NTSB Determination

Accident narrative

The tailwheel airplane sustained substantial damage when it ground-looped after landing off-airport. The pilot stated that he was landing on a north-south dirt road to the south. He stated that the winds were calm and the airplane rolled into a dust devil and directional control was lost. He said there were no ruts or ditches on the road. The pilot reported that all his flight experience was in tailwheel airplanes

Frequently asked questions

What happened in the 1999-04-10 Piper PA-18 accident near Boulder, MT?

The tailwheel airplane sustained substantial damage when it ground-looped after landing off-airport. The pilot stated that he was landing on a north-south dirt road to the south. He stated that the winds were calm and the airplane rolled into a dust devil and directional control was lost. He said there were no ruts…

What aircraft was involved and where did it happen?

The accident on 1999-04-10 involved a Piper PA-18, registration N4036E, at Boulder, MT.

What was the probable cause of the accident?

The pilot-in-command's failure to maintain directional control after encountering a dust-devil during landing rollout, resulting in a ground loop and collapse of the main landing gear. Factors include the dust-devil.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001205X00564. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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