As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) APU HAD TO BE SHUTDOWN DUE TO HIGH OIL TEMPERATURE. EMERGENCY DECLARED AS ONE CSD WAS PREVIOUSLY DISCONNECTED AND ON MEL, APU WAS GROUND RUN, OIL LEVEL CHECKED, EVERYTHING WAS BACK TO NORMAL. AIRCRAFT RETURNED TO SERVICE. NO PROBLEM FOR THE REST OF THE FLIGHT.