Probable cause
The pilot’s inadequate altitude to clear a ridgeline while maneuvering over a mountainous area.
NTSB analysis
According to the pilot, his release from the tow plane was normal. He released the tow rope at 7,100 feet mean sea level (msl) while over a 6,500-foot msl mountaintop for a planned 1/2-hour sightseeing flight. Little to no indication of lift was noted in the area, and the pilot reversed course. When the glider had descended to 6,900 feet msl and was continuing to rapidly descend, the pilot again reversed course toward lower elevation terrain. The glider’s altitude was insufficient to clear a ridgeline. On the side of the mountain, about 6,400 feet msl, the glider impacted rocks, trees, and shrubs, which resulted in the glider’s wings breaking.
Text from the NTSB. Open the NTSB docket for WPR11CA411 for the full record.
Event
- Date
- Aug 28, 2011
- Type
- Accident
- Place
- Warner Springs, California
- Highest injury
- Serious
- Serious injuries
- 1
- Weather
- Visual (VMC)
- Light
- Day
Schweizer SGS 2-32
- N-number
- N5840V
- Category
- Glider
- Damage
- Substantial
- Operating rule
- Part 91 (general aviation)
- Purpose of flight
- Personal
From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.