As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE WITH FUMES WAS OBSERVED COMING FROM ELECTRICAL PANEL BY THE JUMP SEAT ON AIRCRAFT RIGHT ON APPROACH. THE M181 MODULE WAS HOT TO TOUCH, THE MODULE WAS REMOVED AND SMELLED BURNT. THE AIRCRAFT LANDED AT EWR WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE M181 RELAY MODULE. THE MODULE TESTED GOOD AND NO OTHER DISCREPANCIES WERE FOUND.