Probable cause
The pilot’s failure to maintain directional control while landing in gusting wind conditions.
NTSB analysis
The pilot reported that during landing, a gust of wind displaced the glider laterally to the left. She attempted to maneuver for a normal landing on the grass runway; however, the glider was too low to maneuver around a parked glider. She landed at an angle on the runway, and the glider ground looped and sustained substantial damage to the fuselage and wings. The pilot reported that there were no preaccident mechanical failures or malfunctions with the glider that would have precluded normal operation. At the time of the accident, the pilot was landing the glider on runway 25 with wind from 260° at 12 knots, gusting to 17 knots.
Text from the NTSB. Open the NTSB docket for ERA21LA244 for the full record.
Event
- Date
- Jun 5, 2021
- Type
- Accident
- Place
- Sanford, Maine
- Nearest airport
- Sanford Seacoast Rgnl (SFM)
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Day
Schweizer SGS 2-33A
- N-number
- N7776S
- Category
- Glider
- Year built
- 1969
- 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.