As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - ON DEPARTURE FROM KSEA NOTED A LOSS OF HYDRAULIC FLUID QUANTITY, LEFT SIDE. CREW RETURNED AIRCRAFT TO KSEA WITHOUT FURTHER INCIDENT. MAINTENANCE PERSONEL FOUND FLAP ACTUATOR LINE CRACKED AND INSTALLED A FLEX LINE PER GP/P AND MB 87-19. TRANSFERRED FLEX LINE TO CARRY OVER ITEM 870 UNTIL PERMANENT REPAIR. (M)