Casualties unknown

1995-12-12: Piper PA-11 (N4589M) — Delta Junction, AK

Delta Junction, AK, US

On December 12, 1995, a Piper PA-11 (registration N4589M) was involved in an aviation accident near Delta Junction, AK. Investigators recorded the probable cause as: The pilot's inadequate preflight preparation/planning, and his improper in flight decision making. Factors associated with the accident are the gusty crosswinds and associated turbulence. 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 1781061362Data APIEditorial standards

A pilot aborted takeoff in a ski-equipped airplane after encountering severe turbulence. The airplane, unable to land on the runway or clear obstructions, collided with trees adjacent to the runway.

Accident Overview

A pilot reported that while attempting to take off in a ski-equipped airplane, the aircraft encountered severe turbulence shortly after becoming airborne. The pilot had elected to use a runway subjected to a gusting crosswind estimated at 25 knots, choosing it because it had the most snow on it. After the turbulence, the pilot decided to abort the takeoff.

Sequence of Events

According to the pilot's report, the takeoff was initiated on a runway with a significant crosswind. The pilot stated that the crosswind was gusting and estimated its speed at 25 knots. The runway was selected because it had the greatest amount of snow, despite also having the most severe crosswind. Soon after the airplane became airborne, it encountered severe turbulence. Faced with this unexpected condition, the pilot elected to abort the takeoff.

Collision with Trees

At the time the pilot aborted the takeoff, the airplane was not in a position to land back on the runway or clear nearby obstructions. As a result, the airplane subsequently collided with trees adjacent to the runway. The report does not specify the extent of damage or any injuries.

Aircraft and Conditions

The airplane was equipped with skis for operation on snow. The wind conditions were described as gusty, with crosswind components. The pilot's decision to use the runway with the greatest crosswind was based on the presence of snow, which was deemed favorable for ski operations. The specific airport, date, and aircraft registration were not provided in the source.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001207X04939. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.