As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AVNX MAU 1B FAULT /SPOILER FAULT ON FINAL DESCENT. REJECTED TO AT APPROXIMATELY 60 KNTS. CAUTION WAS ACCOMPANIED WITH ANOTHER ADVISORY MESSAGE THAT I DIDN'T GET TO READ. CAUTION EXTINGUISHED AS WE EXITED THE RUNWAY. EMERGENCY DECLARED. RAR POWER MODULE #3 IAW MM 31-41-02. NO EICAS OR CMC MESSAGES.