As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE CAPTAINS SIDE VERTICAL SPEED INDICATOR WENT BLANK ON APPROACH, FOLLOWED BY A ELECTRICAL BURNING ODOR. IT IS SUSPECTED THAT THERE WAS A FAILURE IN THE INTERNAL LIGHTING IN THE INSTRUMENT CAUSING THE GLASS TO BE BLACKED OUT. MAINTENANCE INSPECTED AND REPLACED THE VSI AND CARRIED OUT A PITOT STATIC CHECK AND THE ACFT WAS RETURNED TO SERVICE.