As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED, APU AUTO SHUTDOWN ON TAXI TO GATE, FOLLOWED BY HEAVY SMOKE SMELL AND SMOKE HAZE IN REAR CABIN. YUL MAINTENANCE INSPECTED AND DEFERRED APU IAW MEL 49-00-00, PLACARD CONTROL NUMBER 017287. AIRCRAFT RETURNED TO SERVICE. 10/19/2001 RIC MAINTENANCE REMOVED AND REPLACED THE APU IAW EMB145 MM 49-10-00. OPS CHECKED GOOD.