As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHT AT SEAT ROW 20 ABC INOPERATIVE. MAINTENANCE FOUND CONNECTOR UNDER SEAT 20B UNPLIUGGED, RSECURED CONNECTOR AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK OF THE EMERGENCY LIGHTING SYSTEM PER AMM 33-51-00.