What was found
AFTER DEPARTURE, RECEIVED R FWD FUEL PUMP & FUEL IMBALANCE EICAS MSG. LEFT WING HAD 3,000 LBS LESS THEN RIGHT TANK, WE WERE GOING TO RUN QRH PROCEDURES THEN FUEL BALANCED OUT AND EICAS MESSAGES WENT AWAY. MONITORED FUEL IN BOTH MAIN TANKS FOR 4 HRS, NO UNWANTED FUEL TRANSFER NOTED. COMPLIED WITH FQI BITE PER FIM 28-41 FT 882, NO FAULTS NOTED. ACCOMPLISHED FUEL CONFIG MSG FIM 28-41 FT 884, NO FAULTS NOTED. ALL BOOST PUMPS OPS CHECK NORMAL PER AMM 28-22-00.