As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 8064 AUS-BOS, CREW DECLARED EMERGENCY AND AIRCRAFT DIVERTED TO CLT DUE TO AVNX MAU 3A AND 3B FAIL IN CRUISE. CB'S POPPED AND QRH PROCEDURES APPLIED. REMOVED AND REPLACED NIC PROC MODULE 5 (MAU 3 NIC 1) AS PER FIM 31-42-00-810-812A. PERFORMED 10 MINUTE IDLE RUN NO FAULTS NOTED.M