What was found
AIRCRAFT RETURNED TO PLATFORM DUE TO CAPTAIN DISCONTINUE ENGINE NR 1 STARTING, FOR FIRE DURING STARTING OF ENGINE NR 2, WITH INDICATION AT CABIN. ENGINES WERE INSPECTED AND TESTED IAW MM, ALL CORRECT. IAW MAINTENANCE CONVENIENCE FLIGHT DATA RECORDER WAS REPLACED. DURING OVERNIGHT SERVICE DENGINE NR 2 WAS INSPECTED AND FDR WAS READ, ALL CORRECT.