As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, GEAR DISAGREE WARNING WHEN HANDLED WAS SELECTED UP. ASSOCIATED NOSE DOOR WARNING DUE TO NOSE GEAR REMAINING DOWN. RAN QRH AND DIVERTED. NO FURTHER INCIDENT. R & R NLG PRIORITY VALVE, NLG SELECTOR VALVE AND 3B HYDRAULIC PUMP IAW AMM.