What was found
DURING THE NR 1 ENGINE START, EGT ROSE TO 780°C, INDICATION ON RED. DUE TO THAT SITUATION THE AIRCRAFT RETURNED TO THE GATE FOR MAINTENANCE. MAINTENANCE PERFORMED FAULT ANALYSIS IAW TSM 77-20-00-810-801-B, INSPECTED THE NR 1 ENGINE THERMOCOUPLES, AND FOUND THE THERMOCOUPLE FIN 4012KS3 DAMAGED, THAT THERMOCOUPLE WAS REPLACED IAW AMM 77-21-15 PB401, PERFORMED AN OPS CHECK OF THE FADEC IAW AMM 73-22-00-710-040-A, WITH NORMAL RESULTS, PERFORMED ENGINE RUN UP AT IDLE IAW AMM 71-00-00-710-012-B WITH NORMAL RESULTS, THE AIRCRAFT WAS RETURNED TO SERVICE.