As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 917 - GUM - ON CLIMB-OUT, LOST A-SYSTEM HYDRAULICS, CREW SHUT DOWN SYSTEM A-PUMPS PRIOR TO COMPLETE HYDRAULIC FLUID LOSS. AIRCRAFT DIVERTED BACK TO GUAM. MAINTENANCE FOUND NR 1 LED SLAT ACTUATOR LEAKING FLUID AND REPLACED ACTUATOR PER MM 27-81-04. SYSTEM SERVICE BACK TO NORMAL AND OPERATION CHECK GOOD. AIRCRAFT RETURN BACK TO SERVICE. (M)