As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) TSB REPORT FEBRUARY 17, 2014, OPERATOR HAD COMPLETED THE APU START, WHEN CREW NOTICED HIGH EGT AND RAMP REPORTED SMOKES AND FLAMES COMING FROM THE APU. THE CREW SHUT THE APU DOWN AND PERFORMED THE APPROPRIATE CHECK LIST. ALL FIRE MESSAGES WENT OUT. RAMP PERSONNEL CALLED FOR FIRE TRUCKS. THE APU WAS PLACED ON MEL AND THE APU STARTER WAS REPLACED.