As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE FAULT FOUND AT FMC CDU, RECENT SHORT TIME MESSAGE CODE 73-11271. THE ALTERNATOR VOLTAGE INPUT TO THE EEC IS OUT OF RANGE. ACFT GROUNDED. REMOVED & REPLACED THE NR 1 ENGINE EEC, ALTERNATOR, & ROTOR IAW AMM 73-21-08. OPS & LEAK CHECKED GOOD.