As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) RECEIVED GEAR DISAGREE WARNING MESSAGE. LEFT MAIN LANDING GEAR NOT EXTEND. RECEIVED GEAR DISAGREE UPON SELECTING GEAR DOWN. TOWER CONFIRMED LEFT MLG NOT DOWN, RAN QRH, INCLUDING MANUAL EXTENSION. MESSAGE DID NOT CLEAR. IN FINAL ATTEMPT AFTER LANDING GEAR UP/UNSAFE LANDING PROCEDURE WE CYCLED LEVER ONE MORE TIME AND IT GAVE THE 3 GREEN INDICATION AND AIRCRAFT LANDED SAFELY.