As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OVERHEAD ELECTRICAL LIGHT STAYS ILLUMINATED. ACFT GROUNDED. PERFORMED P5-13 ELECTRIC LIGHT MESSAGE BITE IAW FIM 24-31 TASK 801. FOUND MESSAGE FOR SPCU INOPERATIVE. MESSAGE CLEARED AND ELECTRIC LIGHT EXTINGUISHED. INTERMITTENT FAULT IAW FIM 24-34 TASK 802.