What was found
RTO - BRAKES HOT LIGHT NR 1 BRAKE LIGHT ON S/O PANEL BRAKE TEMP MAX 420 WITH FANS ON BRAKE COOLED WHILE STOPPED AND ROSE TO 320 DURING TAXI IN. RTO=105 KIAS, 5 C AMBIENT, MODERATE BRAKING USED, 60' PRESSURE ALTITUDE. PLACED NR 1 BRAKE ON DMI 24688 AS PER MEL 32-42-09 CAT C. NR 1 BRAKE DEACTIVATED.