As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF RECEIVED GEAR DISAGREE WARNING MESSAGE. COMPLIED WITH THE QRH AND DROPPED THE GEAR USING THE EMERGENCY EXTEND AND ALL GEAR CAME DOWN AND WENT GREEN. DIVERTED. PERFORMED EXTENSION/RETRACTION CHECK, OPS CHECKED GOOD, CLEANED SENSORS ON NLG. OPERATIONAL CHECK GOOD.