What was found
FORWARD CARGO DETECTION LIGHT ILLUMINATED DURING CRUISE. CHECKED PER CHECKLIST, AFTER TEST MAINTENANCE CONTROL AGREED WITH CREW, VALID CARGO FIRE. FIRE TRUCKS MET AIRCRAFT, DETERMINED NO EVIDENCE OF FIRE. MAINTENANCE INSPECTED FORWARD CARGO BIN RELAY, RADAR ALTIMETER BOX AND AREA, ELEVATOR SERVO COMPARTMENT, E & E COMPARTMENT, NO DEFECTS NOTED. FOUND PASSENGER DUFFEL BAG WITH A POWDERED MILK CONTAINER WHICH HAD BURST OPEN POSSIBLY CAUSING FIRE WARNING.