As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER SELECTING GEAR HANDLE UP, GEAR DOWN LIGHTS ILLUMINATED FOR APPROXIMATELY 5 MINUTES PLUS GEAR HANDLE LIGHT. THEN HEARD A CLUNK IN NOSE WHEEL AREA AND GEAR RETRACTED NORMALLY. AFTER INSPECTION, REMOVED AND REPLACED LANDING GEAR SELECTOR VALVE PER W/C 32-30-41R. FUNCTIONAL CHECKS GOOD.