As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) UPON SELECTING THE LDG DOWN, THE NLG DID NOT COME DOWN AND A (GEAR DISAGREE) MESSAGE FOLLOWED. QRH FOLLOWED, NLG FINALLY EXTENDED. AN UNEVENTFUL LANDING FOLLOWED. NUMEROUS TROUBLESHOOTING STEPS WERE PERFORMED DURING THE TROUBLESHOOTING PERIOD THAT FOLLOWED, HOWEVER THE FINAL FINDINGS HAVE STILL NOT BEEN DETERMINED. STILL INVESTIGATING/ANALYSING THE EVENT.