Casualties unknown

Pilot Recovers After Stalling and Striking Trees While Soaring (N9241Z)

Enumclaw, WA, US

On October 2, 1988, a Let L-13 (registration N9241Z) operated by Puget Sound Soaring Assoc Inc. was involved in an aviation accident near Enumclaw, WA. Investigators recorded the probable cause as: The pilot allowed the aircraft to become too close to terrain while soaring, and a steep turn to reverse direction resulted in entry into an accelerated stall at low altitude. 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 allowed the aircraft to get too close to terrain while soaring. A steep turn to reverse direction caused an accelerated stall at low altitude. The pilot lowered the nose but struck tree tops, damaging control surfaces, before returning to the departure airport for landing.

Incident Overview

A pilot was soaring when the aircraft was allowed to become too close to terrain. In an attempt to reverse direction, the pilot executed a steep turn, which resulted in an accelerated stall at low altitude. The pilot lowered the nose to recover from the stall, but during this maneuver, the aircraft struck tree tops.

Damage and Recovery

The left aileron, horizontal stabilizer, and elevator were damaged in the tree strike. Despite the damage, the pilot was able to return to the departure airport and land successfully.

Sequence of Events

The incident began while the aircraft was soaring. The pilot's action of allowing the aircraft to become too close to terrain led to a situation requiring a steep turn to reverse direction. This turn precipitated an accelerated stall. After the stall, the pilot attempted recovery by lowering the nose, but this resulted in contact with tree tops. The damage to the aircraft's control surfaces did not prevent the pilot from flying back to the departure airport and completing a landing.

Probable cause

The pilot allowed the aircraft to become too close to terrain while soaring, and a steep turn to reverse direction resulted in entry into an accelerated stall at low altitude.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X27168. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.