What was found
(CAN) IN CRUISE, CREW HAD THE AVIONICS MAU 2B STATUS MESSAGE. CREW FOLLOWED QRH. NO RESOLVE. JUST SOUTH OF CREW HAS NOW DECLARED A PAN PAN. AS BRAKING WILL BE AFFECTED. TASK 45-45-00-810-942-A, SUBTASK 810-433-A, 833-799-A CARRIED OUT. OPS CKD SERV. NO HISTORY RECORDED. IAW FIM, CONSIDERED A TRANSITORY CONDITION.