SCHLEICHER ALEXANDER GMBH & CO ASH 26 E near Williams, CA — 2023-06-26

Probable cause

The pilot’s encounter with atmospheric conditions where the lift was not sufficient to maintain flight, which resulted in a collision with terrain.

NTSB narrative

The glider pilot reported that he partially extended the wing spoilers and completed a pre-landing checklist while on left base for his intended destination airport. Shortly after, the glider encountered “significant sinking air” and started a descent. He then maneuvered the glider directly towards the runway and stowed the wing spoilers to extend his glide for a precautionary landing. Subsequently, the glider impacting terrain short of the runway, which resulted in substantial damage to the nose of the glider. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

NTSB coding

• Loss of lift · Approach-VFR pattern final

Evidence available

• Photos
• 2 docket documents

Docket documents2

• PILOT/OPERATOR AIRCRAFT ACCIDENT REPORT, NTSB FORM 6120.1form
• PHOTOSphotos

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