As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - DURING AIRCRAFT TAXI, NOSE LANDING GEAR RED UNSAFE INDICATION ILLUMINATED. AIRCRAFT FERRIED TO EUG FOR REPAIRS. MAINTENANCE INSPECTED SYSTEM. REPLACED HYDRAULIC RETURN FILTER. GEAR POSITION INDICATION NORMAL FOLLOWING GEAR RETRACTION CHECK. AIRCRAFT RETURNED TO SERVICE. (X)