As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER DEPARTURE, GEAR DISAGREE MESSAGE APPEARED WITH SELECTION OF GEAR UP. HYD 3B SELECTED ON AND GEAR SELECTED DOWN WITH 3 GREEN AND NO HORN. ON FINAL APPROACH (RTB), ATC ADVISED FLIGHT CREW THAT NOSE GEAR WAS NOT EXTENDED. NOSE GEAR WAS FULLY RETRACTED AND DOORS CLOSED. MANUAL EXTENSION COMPLETED AND AIRCRAFT LANDED.