Casualties unknown

Glider Impacts Trees After Pilot Mistakes Spoiler for Flaps (N661T)

Clermont, FL, US

On March 10, 2005, a Schleicher ASW 27 (registration N661T) was involved in an aviation accident near Clermont, FL. Investigators recorded the probable cause as: The pilot's inadvertent deploying of the spoilers, while on final approach, resulting in the glider descending and impacting trees. 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 2026-07-04Data APIEditorial standards

A glider pilot mistakenly deployed spoilers instead of flaps while attempting to clear trees, resulting in an impact with trees.

Accident Sequence

The pilot reported that after entering the traffic pattern on the downwind leg, he noticed a motor glider on the runway. He continued descending to land while keeping an eye on it, but allowed himself to get low in the traffic pattern. He compensated by cutting the pattern short. As he approached the edge of the runway, he attempted to pull the flaps all the way back to clear some particularly tall trees, but mistakenly pulled the spoiler handle. The glider then impacted with trees.

Post-accident Findings

The responding FAA accident inspector found the glider suspended by pine trees, about 30 feet above the ground in about a 60-degree nose low attitude. The tail section was broken away from the fuselage and there was extensive damage to both wings. The inspector also found the spoilers deployed and the flaps in the fully retracted position.

Pilot Statement

The pilot's statement described the sequence of events leading to the accident, including the distraction of the motor glider on the runway and the incorrect control input.

Frequently asked questions

What happened in the 10 Mar 2005 Schleicher ASW 27 accident near Clermont, FL?

A glider pilot mistakenly deployed spoilers instead of flaps while attempting to clear trees, resulting in an impact with trees.

What aircraft was involved and where did it happen?

The accident on 10 Mar 2005 involved a Schleicher ASW 27, registration N661T, at Clermont, FL.

What was the probable cause of the accident?

The pilot's inadvertent deploying of the spoilers, while on final approach, resulting in the glider descending and impacting trees.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20050401X00395. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.