As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1401 FLL-AUS, CREW DECLARED EMERGENCY DUE TO AVNX MAU 3A FAIL DURING CRUISE FLIGHT AT FL 360 2000Z NO ICING CONDITIONS, SMOOTH FLIGHT QRH PROCEDURES APPLIED. CLEARED TRANSITORY CONDITION OF THE MAU AS PER FIM 31-41-00. NO HISTORY NOTED.