As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - NOSE GEAR RED UNSAFE ADVISORY LIGHT AND GEAR HANDLE LIGHT CYCLED ON AND OFF FOR VARYING LENGTHS OF TIME IN CRUISE. AIRCRAFT LANDED IN SEA WITHOUT FURTHER PROBLEM. AIRCRAFT INSPECTED AND FERRIED TO PDX. NLG DRAG STRUT PROX SENSOR FAILED AIR/GRO TEST. DRAG STRUT PROX SENSOR REPLACED AND CHECKED GOOD IAW MAINT MANUAL ON GEAR SWING. AIRCRAFT RETURNED TO SERVICE.