As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE AFTER GEAR SELECTED UP, WE GOT AN AMBER GEAR DISAGREE CAS MSG WITH AN INDICATION OF THE RIGHT MAIN GEAR AMBER DN ON THE EICAS DISPLAY. WE RAN THE QRH AND LOWERED THE GEAR. GEAR THEN INDICATED 3 GREEN. PROCEEDED TO AN UNEVENTFUL LANDING. REMOVED RH MLG UPLOCK SWITCH P/N:6948101 - 3 SN: NSN.-INSTALLED CUSTOMER SUPPLIED NEW UPLOCK SWITCH HARNESS P/N:6948101·3, S/N:NSN. WORK DONE IAW CE680A AMM 32-32-25