What was found
(CAN) ON 3 DECEMBER 2010, THE FLIGHT CREW ON SUBJECT AIRCRAFT ENROUTE REPORTED THE FOLLOWING: "DESCENDING THRU 9000 FT, AFT CARGO FIRE INDICATION. DISCHARGE BOTTLE AND FIRE WENT OUT AFTER 4 MINUTES." AN UNEVENTFUL LANDING WAS MADE. THE AIRCRAFT STOPPED ON THE TAXI WAY AND THE CFR TEAM WAS CALLED OUT. INSPECTION OF THE AFT CARGO COMPARTMENT REVEALED NO INDICATION OF A FIRE. THE AIRCRAFT WAS RELEASED AND PARKED AT THE GATE FOR MAINTENANCE INVESTIGATION. THE REPORT COULD NOT BE DUPLICATED. OPERATOR REPLACED THE FIRE CONTROL PANEL P/N 473955-1 PRECAUTIONARY. BOTH FIRE EXTINGUISHER BOTTLES WERE REPLACED AND THE SYSTEM REFURBISHED.