As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE WARNING MESSAGE WHEN EXTENDING GEAR ON FINAL. HAD TO USE THE LANDING GEAR MANUAL RELEASE HANDLE TO MAKE THE GEAR SHOW 3-GREEN DOWN AND LOCKED. R & R MAIN LANDING GEAR SELECTOR VALVE IAW AMM 32-32-10. OPS CHECK IAW AMM 32-30-00. OPS CHECKED GOOD. ACFT OK FOR SERVICE.