As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PRE-FLIGHT INSP, THE F/A NOTICED THE AFT OVERHEAD EMERGENCY LIGHT ASSY WAS INOPERATIVE. MX CREW RESEATED CONNECTER FOR THE POWER SUPPLY AT POSITION 3351-PS4. PERFORMED OPS TEST OF EMERGENCEY LIGHTING SYS, AND CHECKED SATISFACTORY. ACFT RETURNED TO SERVICE.