As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
***SUPPLEMENTAL SDR*** LANDING GEAR HANDLE STUCK DOWN. . LOCK OVRD INOP IN AIR. RESULTED IN ATB. AFTER PRESSURIZING LEFT SYSTEM HYDRAULICS, FOUND LEFT MAIN LANDING GEAR TRUCK DID NOT TILT. FOUND S452 LEFT MLG TILT SHUTTLE VALVE PRESSURE SWITCH WITH POSITIVE PRESSURE. REPLACED LEFT MLG TRUCK POSITIONER ACTUATOR PER MM 32-32-15.