Casualties unknown

Pilot Loses Control During Night Takeoff From Uncontrolled Strip (N4518H)

Cottage Grove, OR, US

On February 20, 1991, a Piper PA-15 (registration N4518H) operated by Leslie W. Beaver was involved in an aviation accident near Cottage Grove, OR. Investigators recorded the probable cause as: The pilot's loss of control during night takeoff from an uncontrolled strip. 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 2026-06-22Data APIEditorial standards

An aircraft departed an uncontrolled strip at night and subsequently lost control, resulting in a vertical impact with the terrain. No mechanical failures were found during post-crash inspection.

What happened

Shortly after departing from an uncontrolled airstrip under dark night conditions, the pilot lost control of the airplane. The aircraft then collided with the terrain in a vertical, nose-down position.

The investigation

A post-crash inspection of the wreckage was conducted to determine the condition of the airframe and propulsion system. There were no noted mechanical failures or malfunctions with the airplane or engine found during this examination.

Probable cause

The pilot's loss of control during night takeoff from an uncontrolled strip.

Frequently asked questions

What happened in the 20 Feb 1991 Piper PA-15 accident near Cottage Grove, OR?

An aircraft departed an uncontrolled strip at night and subsequently lost control, resulting in a vertical impact with the terrain. No mechanical failures were found during post-crash inspection.

What aircraft was involved and where did it happen?

The accident on 20 Feb 1991 involved a Piper PA-15, registration N4518H, operated by Leslie W. Beaver, at Cottage Grove, OR.

What was the probable cause of the accident?

The pilot's loss of control during night takeoff from an uncontrolled strip.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X16509. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.