What was found
DURING AIRCRAFT REFUELING LINE SERVICE PERSONNEL NOTIFIED THE MAINTENANCE DEPARTMENT THAT FUEL WAS LEAKING FROM THE LEFT AUX TANK AREA. AUX TANK WAS DEFUELED. UPON REMOVING THE FUEL CELL, IT WAS NOTED THE CELL HAD COMPLETELY SEPARATED FROM THE FILLER NECK. THE VENT NIPPLES BROKE OFF UPON REMOVAL OF THE CLAMPS. THE FUEL SCREEN WAS CHECKED FOR CONTAMINATION (NONE FOUND) AND THE FUEL CELL WAS REPLACED WITH A NEW UNIT.