As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE PILOTS REPORTED A VERY STRONG BURNING SMELL IN THE FLIGHT DECK WHILE ON APPROACH TO THE LOON RIVER TANKER BASE. NO SMOKE OR OBVIOUS INDICATIONS. UPON INVESTIGATION, THE AIR CONDITIONING BLOWER MOTOR BEARINGS WERE FOUND TO BE WORN, CAUSING PLAY AND THE MOTOR TO GET VERY HOT. A NEW BLOWER MOTOR WAS INSTALLED AND GROUND CHECKED SERVICEABLE. (TC# 20180529013)