As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING GEAR RETRACTION RECEIVED A GEAR DISAGREE MESSAGE AND A HYDRAULIC SYSTEM CAUTION FOR 3B, ON TAKEOFF OUT OF DTW, ON FLIGHT 4416. CREW DID NOT DECLARE AN EMERGENCY AND THIS WAS DURING A FCF. AIRCRAFT CURRENTLY STILL IN WORK IN DTW.