What was found
CLIMBING THROUGH 4000 FEET, RECEIVED AVNX MAU1A FAIL, MAU 2 FAIL, ADS 1 FAIL, SPOILER FAULT, TERR FAIL, VHF 3 FAIL, AP FAIL, AP TRIM FAIL, APM FAULT, AT FAIL, MAU 2A FAULT, BRK LT FAULT, BRK RT FAULT, FMS 1 FAIL, STALL PROT FAIL AND YAW DAMP FAIL. ON GROUND RECEIVED STEER FAIL, FCND, AND MCDU 1 WENT BLANK. FAULT CODE 45452143CMC. REMOVED AND REPLACED NIC PROC 1, HAD FCND AND VALIDATE SYS CONFIG MESSAGES. REMOVED AND REPLACED NIC PROC 1 AGAIN, MESSAGES CLEARED.