As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE TAXIING THE FIRST OFFICER NOTICED AN ODOUR AND THE CAPTAIN VERIFIED PRESENCE OF SMOKE AT CIRCUIT BREAKER PANEL NR 2. THE SMOKE STOPPED WHEN THE CREW REACHED OVER AND PULLED CIRCUIT BREAKER CBP2-G13. THE PROBLEM WAS FINALLY SOLVED WITH THE REPLACEMENT OF CIRCUIT BREAKERS CBP2-G13 & -G14 AND HYDRAULIC RESERVOIR NR 1.