As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, THE RIGHT CENTER FUEL PUMP DID NOT FULLY SUPPLY THE NR 2 ENGINE FUEL FLOW. RIGHT MAIN TANK QUANTITY DECREASES WITH CENTER FUEL AND BOTH CENTER PUMPS ON. EMERGENCY DECLARED. LANDING UNEVENTFUL. AIRCRAFT GROUNDED. MAINTENANCE ACCOMPLISHED FIM 28-21-00, CHECKED PUMP OPERATIONS ON GROUND. CHECKED HISTORY. SYSTEM CHECKED NORMAL. MAINTENANCE FOUND THE LEFT CENTER BOOST PUMP SWITCH INOPERATIVE. REMOVED AND REPLACED THE FUEL CONTROL MODULE ASSEMBLY.