As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YYJ - FLIGHT 2375 - APU STARTED BLOWING SMOKE DURING A START AND PERFORMED A AUTO SHUTDOWN, FOR ABOUT 5 MINUTES IT LEAKED FUEL. MAINTENANCE FOUND FUEL LEAK TO BE FROM COMBUSTION CAN DRAIN LINE AND PLACED ON MEL 49-00-1. MEL CLEARED 5/28 IN BOI BY REPLACING EXCITER BOX WITH NO HELP, THEN REPLACED RT START NOZZLE. OPERATIONAL CHECKS GOOD MEL CLEARED AND AIRCRAFT RETURNED TO SERVICE.