As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - FLIGHT 2429 - AFTER GEAR RETRACTION, THE NOSE GEAR DOOR LIGHT ILLUMINATED. RETURNED TO THE FIELD AND ACCOMPLISHED A UNEVENTFUL LANDING. FERRIED THE AIRCRAFT TO PDX FOR REPAIRS. REPLACED THE NOSE GEAR SOLENOID SEQUENCE VALVE. OPERATIONAL AND TEST FLIGHT CHECK TESTS GOOD. AIRCRAFT RETURNED TO SERVICE.