What was found
ON CLB OUT CENTER TANK AND RIGHT MAIN TANK WERE DEPLETING FUEL A T THE SAME RATE. PER CREW BRIEFING "RT WING TANK WAS DROPPING AT THE SAME RATE AS THE LEFT AND CENTER COMBINED." REF LP 3794838 REMOVED AND REPLACED CTR TANK RT PUMP. ACCOMPLISHED TS FOR POSSIBLE UNWANTED TRANSFER. NO DISCREPANCIES NOTED. ALL PUMPS WORKING NORMAL. CROSSFEED VLV CHECKS NORMAL. NO FURTHER MAINTENANCE ACTION REQUIRE. SUSPECT CROSSFEED VLV WAS CLOSED WITH CTR RT PUMP ON MEL CAUSING FUEL IMBALANCE PER CREW W/U. REFERENCE LOG 3794838 - RT CENTER TANK FUEL BOOST PUMP INOPERATIVE AND DEACTIVATED (MELED). REMOVED AND REPLACED CTR TANK RT BOOST PUMP PER AMM28-22-41-400- 801. ACCOMPLISHED OP AND LEAK CHECKS NO DISCREPANCIES NOTED. CDCCL BONDING CHECK COMPLIED WITH PER AMM TASK 28-00-00-910-801. NO ISCREPANCIES NOTED.