What was found
AIRCRAFT WAS GROUNDED: ON TAKEOFF ROLL AT APPROXIMATELY 60 KNOTS, AN ECAM BRAKES HOT DELAY TAKEOFF WARNING APPEARED. LOW SPEED REJECT ACCOMPLISHED IMMEDIATELY. BRAKE TEMPERATURE INDICATIONS ON LEFT BRAKES WERE ABOVE 500& 400 C ON LEFT SIDE, AND 80C AND 110C ON RIGHT SIDE. PRIOR TO TAKEOFF, ALL BRAKE INDICATIONS WERE BELOW 100C. MAINTENANCE ACCOMPLISHED TSM 32-42-00-810-922A. JACKED LEFT MAIN LANDING GEAR, #1 BRAKE DRAGGING SLIGHTLY, REPLACED #1 BRAKE ASSEMBLY AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 32-42-27.