On June 9, 2007, a Schleicher ASK-21 (registration N621CP) operated by Civil Air Patrol Inc was involved in an aviation accident near Clear, AK. No fatalities were reported. Investigators recorded the probable cause as: The student pilot's premature deployment of full spoilers on short final, which resulted in a touchdown short of the runway threshold and subsequent impact with the threshold edge. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 1 related events involving the same aircraft type or operator are linked below.
A student pilot deploying spoilers early on short final caused a glider to land short of the runway threshold, resulting in nose wheel impact and structural damage.
What happened
The incident occurred during a flight instruction session conducted under Title 14, Code of Federal Regulations Part 91. The flight instructor was supervising student training exercises within the airport traffic pattern. As the aircraft approached the runway on short final approach, the dual-student pilot deployed the full spoilers prematurely. This action resulted in an accelerated descent and a touchdown that occurred short of the designated runway threshold.
Upon impact, the nose wheel struck the edge of the runway threshold. The force of this collision caused significant structural damage to the aircraft's landing gear attachment points and the fuselage.
Probable cause
The student pilot's premature deployment of full spoilers on short final, which resulted in a touchdown short of the runway threshold and subsequent impact with the threshold edge.
What happened in the 9 Jun 2007 Schleicher ASK-21 accident near Clear, AK?
A student pilot deploying spoilers early on short final caused a glider to land short of the runway threshold, resulting in nose wheel impact and structural damage.
Were there any fatalities in the 9 Jun 2007 Schleicher ASK-21 accident?
No fatalities were recorded in this accident.
What aircraft was involved and where did it happen?
The accident on 9 Jun 2007 involved a Schleicher ASK-21, registration N621CP, operated by Civil Air Patrol Inc, at Clear, AK.
What was the probable cause of the accident?
The student pilot's premature deployment of full spoilers on short final, which resulted in a touchdown short of the runway threshold and subsequent impact with the threshold edge.
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