As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD INFLIGHT T50/20APR DFW TO LHR - CREW REPORTED NUMEROUS STATUS MESSAGES. DECLARED EMERGENCY AND LANDED ORD WITHOUT INCIDENT. REPLACED BOTH 629 ARINC LEFT CARDS IN LEFT AND RIGHT SYSTEM CARD FILES. SYSTEM GROUND CHECKED NORMAL OPERATION.