As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, AUTO PILOT FLIGHT CONTROL PANEL EMITTED AN ELECTRICAL ODOR, UPON TURNING LIGHTS OFF SMELL WENT AWAY. MAINTENANCE REMOVED AND REPLACED AUTO PILOT/FLIGHT DIRECTOR MODE SELECTOR PANEL. OPERATIONAL CHECK GOOD, AIRCRAFT RETURNED TO SERVICE.