As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DTW - FLT 1698 - LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF. CREW RETURNED TO DTW WITHOUT INCIDENT. MAINTENANCE FOUND LANDING GEAR CONTROL CABLE IN THE RIGHT WHEEL WELL FROZEN. THE OBSTRUCTION WAS CLEANED. AIRCRAFT OKAY FOR SERVICE. (X)