As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PERFORMED TC 78273000, NR 1 ENGINE FOUND FAULT (LONG TERM) 74-30971, APL INPUT VOLTAGE L EXCITER OUT OF RANGE. GROUNDED - YES. ACCOMPLISHED FIM 74-21 TASK 801. FAULT IS NO LONGER ACTIVE OR PRESENT. ACCOMPLISHED IGNITION SYSTEM AUDIBLE TEST, IAW AMM 74-00-00-750-801-F00. NO FAULTS PRESENT.