Casualties unknown

Floatplane Wing Strike During River Landing (N1018D)

Willow, AK, US

On September 25, 2004, a DE Havilland DHC-2 (registration N1018D) operated by Susitna Air Service Inc was involved in an aviation accident near Willow, AK. Investigators recorded the probable cause as: The pilot's failure to maintain clearance from trees during the landing phase, which resulted in a collision with the left wing. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-10Data APIEditorial standards

A commercial pilot experienced a landing incident at a remote river slough where the left wing struck trees after touchdown, causing structural damage to the aircraft.

What happened

The certificated commercial pilot was attempting to land an amphibious aircraft at a remote river slough. Upon touchdown, the left wing of the aircraft collided with a stand of trees located near the water's edge. Following this impact, the airplane pivoted sharply to the left. The floats then struck the river bank, resulting in significant structural damage to both wings and the fuselage.

The investigation

Post-accident examination revealed that the pilot reported no preaccident mechanical anomalies with the airplane prior to the incident. The damage was consistent with the described sequence of events involving the tree contact and subsequent pivot into the river bank.

Probable cause

The pilot's failure to maintain clearance from trees during the landing phase, which resulted in a collision with the left wing.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20041105X01770. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.