What was found
KHA - FLT 484 - CVG TO PIT - WHILE IN CRUISE, THE 'FWD CARGO & ELECT ACCESS" FIRE LIGHT AND BELL ACTIVATED FOR LESS THAN ONE SECOND. AS A PRECAUTION, THE FLIGHT CREW SHUT DOWN THE COCKPIT HEATER, THE FIRE WARNING SYSTEM TESTED OK. INSPECTION REVEALED A LOOSE CONNECTION ON A FIRE DETECTOR IN THE FORWARD CARGO COMPARTMENT. THE CONNECTOR ON THE FIRE DETECTOR WAS SECURED AND THE FIRE DETECTION SYSTEM TESTED OK. THE AIRCRAFT WAS RETURNED TO SERVICE. (X)