As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) GEAR DISAGREE MESSAGE ON APPROACH, NOSE GEAR SHOWED DOWN & GREEN, MAIN SHOWED UP & WHITE, GEAR HANDLE CYLCLED TWICE WITH SAME INDICATION, HYD INDICATION OK. MANUAL EXTENSION COMPLETED AS PER QRH. THIS WAS THE ORIGINAL PART FROM THE MANUFACTURER.