As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE IN CRUISE, AN AVIONICS MAU 1 FAILURE OCCURRED. THE CREW DECLARED A PAN PAN AND DIVERTED. APPROACH AND LANDING CARRIED OUT WITHOUT INCIDENT. EMERGENCY VEHICLES WERE CALLED OUT. CONNECTED THE CAPTAIN WITH THE DUTY PILOT SO THEY COULD DISCUSS THE INCIDENT. CAPTAIN WILL SUBMIT AND ASR. IAW FIM 45-45-00-810-939 -A00, REPLACED MAU NR 1 NIC NR 1 IAW AMM 31-41-04-400-801A. CHECK`S SERVICE, OK TO PROCEED.