As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER GEAR UP SELECTION, GEAR CAME UP AND LOCKED BUT NOSE GEAR DOOR LIGHT REMAINED ON. WHEN GEAR WAS SELECTED DOWN, THE NOSE GEAR DOOR CAUTION LIGHT REMAINED ON. (GEAR DOWN AND LOCKED). UNSCHEDULED LANDING COMPLETED. NOSE GEAR DOOR CLOSED PROXIMITY SENSOR REPLACED IAW AMM 32-61-00.