As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT EMERGENCY EXIT CAUTION MESSAGE. FLIGHTCREW PLACARDED OVERWING EXIT INDICATION SYS, MEL 5207. DURING TROUBLESHOOTING OF RT EMERGENCY EXIT DOOR WARNING SYSTEM FOUND PROX SWITCH PX42 OUT OF RIG. REMOVED AND REPLACED RT EMERGENCY DOOR PROX SENSOR PX42 IAW AMM 52-70-10 OPS CHECK GOOD. MEL ITEM RESTORED.