As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, THE CREW REPORTED NOT GETTING A GEAR UP AND LOCKED INDICATION AND DIVERTED TO DAY. MAINTENANCE INSPECTED AND FOUND 4 PIECES OF ICE IN THE WHEEL WELL AND REMOVED IT. MAINTENANCE THEN PERFORMED OPERATIONAL CHECKS IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 32-00-00. THE AIRCRAFT WAS THEN RELEASED FOR SERVICE.