What was found
FLT#354, DUB-BOS. (ETOPS) 'FUEL ACT XFR FAULT WITH 3300 LBS FUEL IN AFT 1. QRC BYPASS AND QRH COMPLETED. TRANSFERRED REMAINING FUEL MANUALLY. ( AUTO TRANSFER SYSTEM (ACT) 1), 2) ADDITIONAL CENTER TANK(S) (ACT) ); SEE LP 3993922, ITEM 1 FOR REMOVED AND REPLACED PRESELECTOR. PERFORMED OPS CHECK OF ACT AIR SHUT-OFF VALVE, VENT VALVE, FUEL INLET VALVE ON ACT1 AND ACT2, FUEL TRANSFER VALVE. ALL VALVES TESTED GOOD. PERFORMED ACT AUTO TRANSFER OPERATIONAL TEST, PER AMM 28-28-00 OPS CHECK GOOD. ALL FUEL WERE TRANSFERRED FROM ACT 1.MX-4 UPDATED AND PLACARD REMOVED.