The pilot receiving instruction in a tailwheel-equipped airplane reported that during the landing roll the airplane turned left and he "over corrected with too much right rudder". He added that the airplane ground looped, exited the runway to the right, and came to rest in a nose down attitude.

The airplane sustained substantial damage to the firewall.

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