As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG 'ENG EEC C1' MESSAGE APPEARED OM EICAS. ENG OPS NORMAL. L PIMU HAD FAULT "EEC CH A FMU FD-BK FAIL" ACP PIMU MSG IND EX PG60J MSG 351-24 FIM. RESISTANCE BETWEEN A AND B=63 OHMS,C AND D=33 OHMS, D AND E=33 OHMS RESISTANCE BETWEEN C AND E=70 OHMS WHICH IS OUT OF LIMITS IAW FMU SCHEMATICS. REMOVED AND REPLACED FUEL METERING UNIT. LEAK CHECKED GOOD. ACCOMPLISHED SAFETY AND SECURITY OF METERING UNIT.