As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FROM AVB TO RMS, THE FLIGHT CREW NOTICED THAT THE MAIN HYDRAULIC QUANTITY SYSTEM WAS DECLINEING. THE FLIGHT CREW FOLLOWED COMPANY PROCEDURES AND CONTINUED TO RMS FOR AN UNEVENTFUL LANDING. MAINTENANCE INSPECTED THE AIRCRAFT LOCATE A DEFECTIVE SUPPLY LINE ON THE LEFT MAIN GEAR BOGIE TRIM CYCLINER. MAINTENANCE REPLACED THE SUPPLY AND PERFORM AND OPERATIONAL CHECK IN ACCORDANCE WITH THE MAINTENANCE MANUAL. THE AIRCRAFT WAS RETURNED TO SERVICE.