As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER STARTING THE RT ENGINE, RECEIVED AN AC BUSS 2 CAUTION MESSAGE FOLLOWED BY AN ARINC COOL, HYD 3B & COMPLETE ELEC FAILURE, ALSO FLAPS FAIL MSG. ALL FAULT MESSAGES OCCURRED AFTER HYD 3A CIRCUIT BREAKER TRIPPED & KICKED APU GENERATOR OFF. RESET POWER, RAN ENGINES & CYCLED FLAPS & ACFT POWER CHECKED GOOD IAW AMM 24-20-00. ALL AC POWER MESSAGES CLEARED.