As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DHL CHARTER FLIGHT HYD/ARL, TOTAL A-SYSTEM HYDRAULIC FAILURE REPORTED INTO AUCKLAND. AIRCRAFT REQUIRED TOW FROM RUNWAY. HYDRAULIC LEAK TRACED TO LOOSE SWIVEL JOINT ON L/E SLAT ACTUATOR. SWIVEL JOINT CORRECTLY TIGHTENED AND SYSTEM REPLENISHED. AIRCRAFT OPERATED BY KITTY HAWK AIRLINES.