As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AIRCRAFT`S LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF SO ACFT RETURNED FOR AN EMERGENCY LANDING ON RUNWAY. RESOLUTION NLG EXT PROXIMITY SENSOR 25GA. REPLACED IAW 32-31-73-400-005, AND 32-31-73-000-005. TARGET ADJUSTED IAW 32-31-73-820-006. SYSTEM SERVICEABLE.