As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STL - DURING MAINTENANCE INSPECTION, THE OVERWING EMERGENCY EXIT LOCATOR WAS FOUND TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE NUMBER SIX EMERGENCY LIGHT INVERTER, OPERATIONALLY CHECKED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.