As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER CLEARING RUNWAY AND PROCEEDING WITH AFTER LANDING CHECKS COMM NR 1 STARTED TO SMOKE. CAPTAIN STOPPED THE AIRCRAFT AND CALLED FROM ELECTRICAL SMOKE CHECKLIST. LIST COMPLETED, THE AVIONICS WAS SHUT DOWN, AND THE SMOKE CEASED. COMM NR 1 ISOLATED BY PULLING THE CIRCUIT BREAKER AND THE AVIONICS WAS RESTORED TO CONTACT ATC. EMERGENCY VEHICLES ESCORTED A/C TO GATE.