As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 033 FROM KELP TO KDAY, AFTER TAKEOFF DURING CLIMB TO CRUISE ALTITUDE, FLIGHT CREW OBSERVED STEADY AND CONTINUAL LOSS OF SYSTEM A HYDRAULIC FLUID TO BELOW 2.4 GALLONS FLUID QUANTITY. RETURNED TO KELP AND LANDED WITHOUT FURTHER INCIDENT. CHECKED AIRCRAFT HYDRAULIC SYSTEM FOR LEAKS. NO LEAKS NOTED. SERVICED HYDRAULIC A SYSTEM IAW MAINTENANCE MANUAL B727 12-30-0. HYDRAULIC OPERATION CHECKS NORMAL ON GROUND. AIRCRAFT RETURNED TO SERVICE.