What happened
The pilot was executing an ILS approach to runway 32 at approximately 120 knots. Upon touchdown in the first quarter of the runway at about 100 knots, the pilot noted that the runway surface was wet. To avoid potential hydroplaning, the pilot relied primarily on aerodynamic braking rather than heavy wheel braking.
As the aircraft passed the midfield point, the pilot determined that the aircraft retained significant momentum. Faced with the choice of applying firm braking or initiating a go-around, the pilot elected to perform a go-around with one quarter of the runway remaining. After climbing to approximately 50 feet, the pilot observed that the aircraft was not climbing as expected. Consequently, the pilot aborted the go-around and landed on the grass past the departure end of the runway. While traversing the grass, the aircraft veered sideways, which caused the left main gear to collapse.
Findings
The pilot reported that there were no malfunctions regarding the aircraft brakes or the aircraft systems during the go-around attempt.