THE SHEARER WAS STOPPED AT SHIELD #175 AND FACE LINE STOPPED TO REMOVE A ROCK FROM PAN. WITHIN APPROX 45 SEC AFTER RESTARTING PAN LINE A YELLOW FLAME WAS OBSERVED AT SHIELD 113. INVESTIGATION FOUND A LINK BROKEN ON ONE SIDE OF FACE CHAIN WHICH SHOWED EVIDENCE OF BEING RUBBED ON, THUS CAUSING A HOT CHAIN LINK. FLAMES WERE OF A SHORT DURATION, NO INJURIES OCCURRED.