As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - FLIGHT 2409 - UTILITY SYSTEM HYDRAULIC QUANTITY DROPPED BELOW THE YELLOW ARC IN FLIGHT. UPON GEAR EXTENTION, THE GEAR DOORS DID NOT RETRACT. CREW COMPLIED WITH THE APPLICABLE CHECKLISTS. MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND A HYDRAULIC LINE IN THE RIGHT STUB WING LEAKING. THE LINE WAS REPLACED, LEAK CHECKS AND OPERATIONAL CHECKS WERE PERFORMED. THE AIRCRAFT WAS RETURNED TO SERVICE.