What was found
AIR TURN BACK DUE TO MULTIPLE ELECTRICAL FAILURES. NR 1 COMMUNICATION PANEL, E/E COOLING CARD, T/E FLAPS/FLAPS PRIMARY, ELEC BCU 1, ALL FUEL CROSSFEED MSG'S, CREW O2 LOW, YAW DAMPER LOWER, FUEL TANK TO ENGINE, TORQUE LIMITER, FUEL PUMP 2 STATUS MESSAGES APPEARED. FWD FUEL PUMP 2 FAILED AND RESET. REPLACED RELAY NR R7224 IAW MM 24-33-01 AND RCCB NR C2243 IAW MM 24-33-01 AND 24-60-01. FUNCTIONAL CHECKS SATISFACTORY. REMOVED AND REPLACED BATTERY TFR RELAY AND RCCB, PN 9131-8506 AND BACC18AF60; SN 12151 AND 50150.