As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER ARRIVAL, RAMP CREW ADVISED CAPTAIN THAT SMOKE WAS COMING FROM APU EXHAUST. APU WAS SHUTDOWN AND SMOKE STOPPED. MAINTENANCE NOTED HISTORY OF HIGH OIL CONSUMPTION FOR THIS APU. UNIT WAS DEFERRED IAW MEL AND DEPARTED WITH MINIMAL DELAY. APU WAS CHANGED OUT AT OVERNIGHT MAINTENANCE BASE AND SENT FOR TEAR DOWN AND REPORT TO BE FORWARDED TO MQ FOR FOLLOW UP.