As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR RELEASED INFLIGHT, RECYCLED GEAR WOULD NOT STAY LOCKED UP. RETURNED TO PANC FOR UNEVENTFUL LANDING. REPLACED LANDING GEAR SELECTOR VALVE, LEAK CHECKED AND OPS CHECKED NORMAL PER MM. AIRCRAFT RELEASED FOR TEST FLIGHT ONLY. (M)