As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX- ON FLIGHT 2381 RIGHT MAIN GEAR DOOR AMBER CAUTION LIGHT ILLUMINATED AFTER GEAR RETRACTION. COMPLIED WITH CHECKLIST AND AMBER CAUTION LIGHT EXTINGUISHED. REMOVED AND REPLACED NR 2 MLG RETRACTION ACTUATOR. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.