As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YYJ-ON FLIGHT NUMBER 2073, AFTER TAKEOFF AND RETRACTING LANDING GEAR. NOSE LANDING GEAR GREEN LIGHT REILLUMINATED, PER EMERGENCY CHECKLIST. CYCLED GEAR OPERATION NORMAL. NOSE LANDING GEAR EXTINGUSHED. REMOVED AND REPLACED LANDING GEAR SELECTOR PANEL. FUNCTIONAL TEST LANDING GEAR EXTENSION AND RETRACTION SYSTEM. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.