As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BTR - DURING PREFLIGHT INSPECTION, THE RIGHT HAND AFT EMERGENCY EXIT HATCH EXIT SIGN WAS FOUND TO BE INOPERATIVE. MAINTENANCE TROUBLESHOT THE ASSOCIATED WIRING, AND RESET THE EMERGENCY LIGHT CIRCUIT BREAKER, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.