As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE GEAR DOORS OPEN ON THEIR OWN AFTER HYDRAULICS ARE TURNED OFF. REMOVED AND REPLACED THE NLG CHECK VALVE IAW AMM 32-22-25. OPS AND LEAK CHECKED GOOD. REMOVED AND REPLACED NLG DOOR SELECTOR VALVE IAW AMM 32-22-20. OPS AND LEAK CHECKED GOOD.