As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - NLG WOULDN'T STAY IN THE WHEELWELL, GEAR CYCLES CONTINUALLY. AIRCRAFT RETURNED TO FIELD AND LANDED WITHOUT FURTHER PROBLEM. RESHIMMED BOTH ACTUATOR BELLCRANKS AND ADJUSTED UPLIMIT SWITCH. NOSE GEAR OPS CHECKED GOOD ON GEAR SWING. AIRCRAFT RETURNED TO SERVICE.