What was found
FLT NR 6595 - RDU-IAD - DURING CLIMB-OUT RETURNED TO RDU DUE TO THE MAIN BAGGAGE DOOR LIGHT ILLUMINATING ON CLIMB-OUT. AIRCRAFT RETURNED TO RDU WITH NO FURTHER INCIDENTS. MAINTENANCE OPENED DMI NR 17230 IAW MEL 52-3 ON THE DOOR WARNING SYSTEM. MAINTENANCE LATER CLEARED DMI NR 17230 ON, BY ADJUSTING THE FORWARD MICROSWITCH ON THE BAGGAGE DOOR. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)