As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING SCHEDULED MAINTENANCE, THE EMERGENCY LIGHT ABOVE ROW 12 DID NOT ILLUMINATE WHEN TESTED. MAINTENANCE FOUND A LOOSE CONNECTOR ON THE LIGHT ASSEMBLY. THE CONNECTOR WAS RESET, THE SYSTEM OPERATIONALLY TESTED AND THE DISCREPANCY CLEARED.