What was found
(CAN) FUSELAGE DOORS WARNING LIGHT ILLUMINATED DURING CRUISE, THE CREW CONFIRMED THE FWD BAGGAGE WARNING INDICATION ON MFD AND DECIDED TO RETURN TO BASE. NO ANOMALY NOTED ON CABIN PRESSURIZATION SYSTEM. TROUBLESHOOTING CONFIRMED LOCK SENSOR, S36, WIRE HARNESS BROKEN. THE ACFT RETURNED TO SERVICE AFTER WIRE REPAIR. NOTE THIS ACFT IS POST SB 84-52-68 INCORPORATED IN FEB 2012, BUT PRE-IS4Q5200044, PRE-SB 84-52-74.