As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) LANDING GEAR FAILED TO RETRACT ON TAKEOFF. THIS IS THE SECOND INCIDENT IN THE LAST 5 FLIGHT CYCLES. TROUBLESHOOTING SUGGESTED THAT 1 OF THE NOSE GEAR PROXIMITY SWITCHES THAT IS INVOLVED IN WEIGHT ON WHEELS WAS AT FAULT. UPON REPLACEMENT OF THE PROXIMITY SWITCH THE CONNECTOR PLUG ON THIS HARNESS SHOWED EVIDENCE OF OVERHEATING. PINS INSIDE THE PLUG WERE MELTED.