2006-09-18: Piper PA-18 — Alaskan Adventures Lodge

2006-09-18: Piper PA-18 — Alaskan Adventures Lodge — Koliganek, AK

Casualties unknown • Koliganek, AK, US

Probable cause

The pilot's failure to maintain adequate altitude/clearance from rising terrain while maneuvering at a low altitude, which resulted in an in-flight collision with terrain. Factors associated with the accident were a downdraft, the pilot's intentional low altitude flight, and his inadequate weather evaluation.

— NTSB Determination

Accident narrative

The commercial certificated pilot reported he was flying at a low altitude over rising terrain during a Title 14, CFR Part 91 business flight, searching for sites to deploy a tent camp in support of a lodge operation. While approaching a ridgeline, he stated that a powerful downdraft forced the airplane into a brush-covered hillside. The pilot reported that neither he nor the sole passenger were injured, and that there were no preaccident mechanical problems with the airplane. The airplane received substantial damage to the wings and fuselage structure.

Frequently asked questions

What happened in the 2006-09-18 Piper PA-18 accident near Koliganek, AK?

What aircraft was involved and where did it happen?

The accident on 2006-09-18 involved a Piper PA-18, registration N82905, operated by Alaskan Adventures Lodge, at Koliganek, AK.

What was the probable cause of the accident?

The pilot's failure to maintain adequate altitude/clearance from rising terrain while maneuvering at a low altitude, which resulted in an in-flight collision with terrain. Factors associated with the accident were a downdraft, the pilot's intentional low altitude flight, and his inadequate weather evaluation.

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