As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE, RECEIVED AN AMBER "GEAR DISAGREEMENT" CAS AFTER SELECTING GEAR UP. NOSE WHEEL ONLY RETRACTED AND MAIN GEAR REMAINED EXTENDED. SELECTED GEAR HANDLE BACK DOWN AND RECEIVED NORMAL GEAR DOWN INDICATIONS. R & R THE NR 2 MLG SELECTOR VALVE WITH A REPAIRED UNIT IAW AMM CH-32-31-13. OPS CHECKED GOOD.