As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELECTRIC FAULT LIGHT ON DURING PREFLIGHT. LIGHT REMAINED ON AFTER SWITCHING FROM GROUND POWER TO APU. POWERED OK WN A/C + LIGHT REMAINED ON. ACFT GROUNDED. PERFORMED FIM TASK 24-31, TASK 801 FAULT RESET, ELECTRIC FAULT LIGHT EXTINGUISHED, ACFT OK FOR SERVICE.