As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA- ON FLIGHT 2281 AFTER TAKEOFF FROM GEG RIGHT DOOR ADVISORY LIGHT REMAINED ON AFTER GEAR RETRACTION. AIRSPEED WAS HELD AT 185 OR BELOW AND LEVELED OFF AT 15,000 FEET TO RUN THE CHECKLIST. AS SOON AS LEVELED AT 15,000 FEET THE DOOR RETRACTED ON IT'S OWN AND FLIGHT WAS CONTINUED ON TO SEA. REMOVED AND REPLACED NR 2 MLG RETRACTION ACTUATOR. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.