As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH-FLIGHT 3916 THE EMERGENCY EXIT SIGN NEAR SEAT 1A WAS REPORTED AS COMING OFF AND WOULD NOT LIGHT. MAINTENANCE REMOVED AND REPLACED THE NR 1 EMERGENCY LIGHT INVERTER, REINSTALLED THE EXIT SIGN, AND OPERATIONALLY TESTED WITH NO DEFECTS NOTED. THE AIRCRAFT WAS SUBSEQUENTLY APPROVED FOR RETURN TO SERVICE.