The student pilot reported that following a normal landing, while the airplane was decelerating, he attempted to exit the runway as instructed by the tower controller. During the turn, the student pilot lost directional control of the airplane and struck a taxiway sign, causing substantial damage to the right wing. The student pilot reported that the airplane's speed was suitable for the turn, but he had issues controlling the airplane with the rudder pedals and brakes, which resulted in a runway excursion.

The operator reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.