As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY DECLARED. AVNX MAU FAIL IN FLT; A/C ARRIVED AT GATE WITH NO ACTIVE FAULTS. REF FIM 45-45-00-810-941-A PERFORMED MAU 2 NIC 3 MODULE RESET TEST, TEST PASSED. CONSIDERED TRANSITORY CONDITION, A/C OK FOR SVC. NO HISTORY IN AHEAD OF ITEM. SUPPLEMENTAL INFORMATION TO FOLLOW.