What was found
ENG 2 FADEC B FAULT, RTFL. WITH FADEC2 GRD POWER SWITCH ON, NO RESPONSE WHEN FADEC 2A AND 2B LINE SELECT KEYS PRESSED ON MCDU FOR CFDS TEST. EIU-2 GROUND SCAN SHOWED NO FAILURE. EEC PCN 482-9585, EIU PCN 482-9526. REPLACED NR 2 ENG EEC PER MM. OPS CHECK GOOD. FOUND X LINK FAULT. ACCOMPLISHED ENG RUN. OPS CHECK GOOD.