What was found
AFTER STARTING NR 1 ENGINE HAD AND ENGINE OVERHEAT LIGHT ON THE FIRE WARINING PANEL. ALL OTHER INDICATIONS NORMAL, LIGHT EXTINGUISHED AFTER ABOUT 30-40 SECONDS. ACFT GROUNDED. PERFORMED ENGINE AND APU FIRE DETECTION BITE REF AMM 26-10-TASK 801 BITE CHECKED PAST NO FAULTS FOUND. OPEN NR 1 ENGINE FAN COWL, INSPECT FIRE AND OVERHEAT DETECTION TEST. TEST PAST, CREW PERFORMED NR 1 ENGINE START, STARTED NORMAL, NO FAULTS NO HISTORY PAST 30 DAYS. GROUND VERIFICATION SUCCESSFUL.