What was found
AFTER A SERIES OF INTERMITTANT FUEL LEAKS FOLLOWING ENGINE SHUTDOWNS, CARBURETOR WAS REMOVED AND SUBMITTED TO REPAIR STATION (FK3R504L) FOR TROUBLESHOOTING AND/OR OVERHAUL. SHOP FOUND THE FLOAT ASSEMBLY PIVOT TAB (WHERE FLOAT IS ANCHORED WITHIN THE CARBURETOR HOUSING) WAS WORN DOWN. ON SHUTDOWN THE FLOAT'S MOVABLE "TAB" WOULD NOT LEVER THE NEEDLE VALVE TO THE FULLY-CLOSED POSITION ALLOWING FUEL TO BYPASS IT INTO THE VENTURI AND TRICKLE OUT OF THE AIRBOX. RECORDS (FROM CBIR054K) SUGGEST THIS FLOAT WAS NOT REPLACED AT ITS PREVIOUS OVERHAUL, 9 DEC 94. WHILE CARBURETOR HAD ACCUMULATED 1382 HOURS SINCE OVERHAUL IT APPEARS ITS FLOAT DEVICE HAD ACCUMULATED 3063 HOURS.