As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE FLIGHT, AN ODOR OF BURNING WIRE WAS NOTED. AFTER INSPECTING AIRCRAFT, FOUND A-30 ENCODER HAD A BURNED SMELL. REMOVED A-30 ENCODER AND INSTALLED SERVICEABLE ENCODER. PERFORMED INTEGRATED SYSTEM TEST. TESTED OK. SUSPECT CAUSE WAS MOISTURE INFILTRATION INTO UNIT.