As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENG PRI CONT, ACFT RETURN TO GATE NO TIME TO WORK. MSGS ON EPCS PG: P PDIU- (EEC), EEC,S PDIU-(EEC),S 274-18 ALL ERASED AND DID NOT RETURN DURING DEFFERAL. ACCMP'D PARTIAL FIM 7 1-EPCS FOR MESSAGE P-S LABEL 274-18, ALL WIRES CHECK OK FOR CONTINUITY AND NO SHORTS TO GROUND. REPLACED EEC ROTOR AND STATOR. RAN ENG AT IDLE. OPS AND LEAK CHECKED OK.