As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PS-2 CHECK FOUND MAIN DOOR EXIT MARKER AND COCKPIT STEP EXIT IDENTIFIER INOPERABLE. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE NR 1 INVERTER IAW EMB AMM 33-50-11. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.