What was found
(CAN) DURING MAINTENACE TO CHANGE A GROUND BLOWER THE EXPANSION CHAMBER WAS REMOVED TO GAIN ACCESS TO THE BLOWER. A RATTLE WAS NOTICED INSIDE THE CHAMBER . INVESTATION REVEALED THE INTERNAL SCREEN HAD SEPERATED FROM THE FILTER SCREEN. THIS CONDITION COULD POSSIBLY LET FOREIGN OBJECTS INTO THE HEATING SYSTEM.THE AFFECTED PART WAS REPLACED WITH A NEW ITEM .THE NEW PART WILL BE INSPECTED PERIODICALLY TO CHECK FOR CONDITION