As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3634 THE CREW REPORTED 3 INOPERATIVE BULBS ON THE LEFT OVERWING EMERGENCY EXIT SIGN (VERTICAL SIGN, FORWARD OF EXIT). THE AIRCRAFT WAS REMOVED FROM SERVICE. RELAMPED AS REQUIRED. THE OPERATIONAL TEST WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.