As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENROUTE, THE CREW RECEIVED A PROXY SYSTEM AND A PROXY SYSTEM WEIGHT ON WHEELS MESSAGE. THE CREW CALLED MAINTENANCE AND THE DECISION WAS MADE TO RETURN TO PIT. MAINTENANCE INSPECTED AND REPLACED THE PSEU IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 32-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.