As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MX INSPECTION, THE PASSENGER CABIN FWD EMERGENCY EXIT LOCATING SIGN ON 253CLC FAILED TO ILLUMINATE. MX R & R THE AFFECTED SIGN EMERGENCY LIGHT INVERTER, OPS TESTED WITH NO DEFECTS, AND THE ACFT WAS APPROVED FOR RETURN TO SERVICE.