Incident Overview
A certified flight instructor (CFI) was providing instruction to a student pilot in a glider. After a routine local instructional flight, the glider returned to the departure airport for landing. The aircraft flew a standard traffic pattern to runway 08R, a dirt glider landing area. Wind conditions at the time were from approximately 100 degrees at 12 knots, gusting to about 20 knots.
Sequence of Events
The student pilot was flying the glider, with the CFI providing verbal instructions. During the landing approach, the glider encountered a high sink rate. The CFI then took control of the glider, after which the aircraft ground looped.
Post-Accident Examination
A post-accident examination revealed that the glider's tail boom was fractured. No other damage or injuries were reported in the source.
Operational Context
The flight was conducted as a local instructional flight, and the landing was on a designated dirt glider landing area. The wind conditions included gusty winds that may have affected the landing performance.