As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - ON FLIGHT 2488, RIGHT MAIN LANDING GEAR DOOR REMAINED OPEN AFTER GEAR RETRACTION. CREW RAN THROUGH LANDING GEAR DOOR MALFUNCTION CHECKLIST THEN RETURNED TO FIELD. MAINTENANCE INTERROGATED PSEU AND FOUND PRESENT FAULTS. PRESSURIZED NR 2 HYDRAULIC SYSTEM. ALL GEAR DOORS CLOSED AND ALL PRESENT FAULTS WENT AWAY. OPERATION CHECKS GOOD. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.