Casualties unknown

Takeoff Collision with Trees After Full Flap Extension (N7815D)

Sunriver, OR, US

On May 23, 2001, a Piper PA-22-150 (registration N7815D) was involved in an aviation accident near Sunriver, OR. Investigators recorded the probable cause as: The pilot's failure to maintain clearance from trees during initial climb. Trees were a factor. 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 pilot reported that after extending full flaps on liftoff from a dirt airstrip, the airplane experienced a decrease in altitude and airspeed before colliding with trees.

Accident Overview

A pilot reported that during takeoff from a dirt airstrip, the airplane lifted off and the pilot extended full flaps. The airplane initially achieved an ascent rate of about 500 feet per minute and reached an altitude just above surrounding trees. Subsequently, the altitude decreased by about 20 to 30 feet and the airspeed dropped by about 15 to 20 miles per hour.

Pilot Actions

With insufficient runway remaining to land, the pilot continued the takeoff. The airplane did not attain sufficient altitude and collided with trees.

Mechanical Status

The pilot stated that there were no mechanical failures or malfunctions with the aircraft at the time of the accident.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20010608X01121. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.