As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURNT WIRING SMELL WAS NOTICED AFTER ENGINE SHUTDOWN. HEADING AD SELECTION CONTROL PANEL WAS EXTREMELY HOT SO COMPLETE SHUTDOWN WAS INITIATED. - TROUBLESHOT TO BAD REMOTE INSTRUMENT CONTROLLER, REPLACED BAD R.I.C. IAJ CE 650MM CH 34-21-00 + OPS CHECK GOOD.