What was found
RETURNED TO DEPARTURE, DURING CRUISE SPDA FAIL ADVISORY MESSAGE FL360 ACCOMPANIED BY FUEL FEED 1 FAULT ADVISORY MESSAGE. PERFORMED QRH PROCEDURE. RESET NOT SUCCESSFUL. MESSAGE REMAIN DISPLAYED AC PUMP 1 PROVIDING FUEL FLOW TO ENG #1. EJECTOR PUMP 1 IS OFF. DURING ABOVE MALFUNCTION DC FUEL PUMP WAS ON PROVIDING FUEL TO ENG 2. APPROXIMATELY EVERY 1 MINUTE EJECTOR PUMP 2 TURNED ON FOR 5 -10 SECONDS WITH DC PUMP OFF. THEN DC PUMP TURNED ON FOR A MINUTE WITH EJECTOR PUMP 2 BACK OFF. THEN ALTERNATED THROUGHOUT THE REST OF THE FLIGHT. R & R MICRO COMMS MODULE SPDA2 SLAT 8 IAW AMM 24-61-07. PERFORMED BOTH ENGS RUN IAW AMM 71-00-00. OPS CHECK GOOD, NO DEFECTS NOTED.