What was found
INITIALLY NR 1 ENGINE OVERHEAT LIGHT CAME ON EARLY DURING DELAYED NR 1 ENGINE START. THEN 3 FIRE WARNINGS. DISCHARGED BOTH FIRE BOTTLES. DEBREIF OF FLT CREW SAID NO. 1 ENG. STARTER HAD REMAINED ENGAGED AND CAUSED AN OVERHEAT CONDITION ON #1 ENG. REMOVED AND REPLACED THE NR 1 ENGINE STARTER IAW AMM 80-11-01-400-801 AND START VALVE IAW 80-11-03-400-801 AS A PRECAUTION DUE TO REPORTS THAT STARTER STAYED ENGAGED AFTER ENGINE START. NR 1 ENGINE STARTS AND RUNS NORMAL, NO PROBLEMS NOTED.