What was found
LH FUEL QTY AMBER DASHES ON MFD. PRESSURE REFUEL INOP. COULD NOT DUPLICATE FAULT. PERFORMED MFD FUEL QUANTITY OPC IAW AMM 28-41-00. OPC GOOD. TRANSFERRED 1000LBS OF FUEL TO EACH WING IAW AMM 28-10-00 TO ENSURE CORRECT INDICATIONS ARE SHOWN ON MFD AND REPEATER PANEL. PERFORMED TEST OF REPEATER PANEL IAW AMM 28-23-08. NO FAULT MSG'S SHOWN. REMOVED AND REPLACED TANK UNIT #3 IAW AMM 28-41-02 OPS CHECK GOOD . PERFORMED RESSURE REFUING IAW AMM 12-11-01 OPS CHECK GOOD FUEL QUANTITY INDICATION CHECKS GOOD.