As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - ON FLIGHT 2250, RIGHT MAIN GEAR DOOR FAILED AFTER TAKEOFF, LIMITED SPEED 185 KIAS ALT GEAR EXTENSION USED. MAINTENANCE CHECKED PSEU AND FOUND FAULTS RGUPLK FAULT UNREASONABLE FAR AND RG-DRCL FAULT UNREASONABLE FAR. INSPECTED RIGHT GEAR UPLOCK ASSY AND FOUND TARGET FOR PROX SENSOR MISSING. INSTALLED NEW TARGET, CLEARED FAULTS FROM PSEU. LANDING GEAR EXTENSION RETRACTION SYSTEM OPERATIONAL TEST GOOD. ALL INDICATIONS NORMAL. NO PSEU FAULTS RETURNED. AIRCRAFT RETURNED TO SERVICE.