As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RUDDER TRAVEL UNRESTRICTED LIGHT REMAINED ON AFTER TAKEOFF THROUGH 230 KNOTS. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED RUDDER TRAVEL UNRESTRICTED SWITCH AND RUDDER CONTROL MANUAL SWITCH. ALSO, REPLACED LEAKING O-RING AT BELLOWS FITTING. OPERATIONAL CHECK NORMAL. AIRCRAFT RETURNED TO SERVICE.