As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PRE-FLIGHT THE CREW DISCOVERED THE NR 2 CEILING EMERGENCY LIGHT INOPERATIVE. THE GROUND CREW DISCOVERED THE CONNECTOR ON THE CEILING LIGHT DISCONNECTED. THE GROUND CREW RECONNECTED THE CONNECTOR AND CONDUCTED A OPS CHECK THAT PRODUCED SATISFACTORY RESULTS. THE ACFT WAS RETURNED TO SERVICE WITHOUT FURTHER INCIDENT.