As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON COMPLETION OF PUSHBACK, ELECTRICAL LIGHT ILLUMINATED AFTER START. ACFT GROUNDED. PERFORMED FIM 24-31 TASK 801. FOUND FAULT SPCU INOPERATIVE. PERFORMED FIM 24-34, TASK 802. FAULT CLEARED. INTERMITTENT FAULT IAW FIM. NO HISTORY. GROUND VERIFICATION SUCCESSFUL. REPLACED SPCU. OPS NORMAL REF MM 24-34-11.