What was found
(CAN) ON DEPARTURE THE CREW RECEIVED A FUEL FEED FAULT EICAS MESSAGE. AFTER CONSULTATION WITH MOC THE ACFT RETURNED TO STATION AND LANDED UNEVENTFULLY. THIS WAS THE SECOND SUCH AIR TURNBACK FOR THIS INDICATION, THE PREVIOUS HAVING OCCURRED ON 14 OCT. CHECKED WIRING AS REQUIRED, NFF REPLACED MAU 1 COUSTOM I/O CARD IAW AMM 31-41-07. CARRIED OUT T/S ACTION ITEM 1-6. SERVICE. EJECTOR PUMPS RE/RE IAW AMM 28-21-25, FOUND NO FAULT. ENG EJECTOR PUMP RE/RE IAW AMM 28-21-13 PB401, FOUND NO FAULT. MOTIVE-FLOW SUPPLY LINE TESTED IAW AMM 28-21-19-720-801-A, FOUND NO BLOCKAGE OR LEAKING. FUEL PUMP REPLACED IAW AMM 73-11-01. ACFT IS SERVICEABLE. COWLING CLOSING CS.