Schweizer SGS 2-33A N7776S accident near Sanford, Maine

Jun 5, 2021 · NTSB number ERA21LA244 · Final report

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.