As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE AFTER TAKEOFF. MAINS CAME UP, NOSE WHEEL WAS AMBER AND DID NOT APPEAR TO COME UP. RAN QRH AND GEAR CAME DOWN WITH THE MANUAL DISCONNECT. DIVERTED TO GRAND RAPIDS. MEL 32-30-1CAT A DUE ODI, DIVERT, SMOD APPROVAL NEEDED FOR RTS CATII DOWNGRADED (FLIGHT 4728) DEFERRED LANDING GEAR RETRACT SYSTEM IAW MEL 32-30-1. MX ACTIONS COMPLIED WITH PLACARDS INSTALLED. CATII DOWNGRADED