What happened
During the conclusion of a Biennial Flight Review (BFR), a flight instructor and a commercial pilot were performing maneuvers in an unspecified aircraft. The flight instructor, who was seated in the right seat and was not current in the aircraft type, was conducting the review for the commercial pilot seated in the left seat.
As part of the agreed-upon maneuvers, the instructor prepared to execute a full stop landing. The approach to runway 15 was conducted under moderate right crosswind conditions, with winds measured between 5 and 10 knots and varying in direction. The instructor performed a full stall landing while maintaining a slight crab into the crosswind.
The sequence of touchdown began with the tail wheel, followed by the main landing gear. Upon contact, the aircraft veered to the right, resulting in a ground loop. During this maneuver, the left main landing gear collapsed, causing the airplane to come to a rest off the right side of runway 15. There were no injuries reported for the occupants.