As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - CREW RETURNED TO FIELD WHEN AFTER TAKE OFF THE RIGHT GEAR DOOR AMBER LIGHT STAYED ON AFTER RETRACTION. MAINTENANCE INSPECTED THE AIRCRAFT AND REPLACED THE LANDING GEAR CONTROL PANEL. OPERATIONAL CHECKS WERE PERFORMED AND CHECKED GOOD. THE RII WAS COMPLIED WITH AND THE AIRCRAFT WAS RETURNED TO SERVICE.