As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SAT - AIR TURNBACK - FLT 0679 - ON CLIMBOUT OF SAT EN ROUTE FOR PHX LOST A-HYDRAULIC SYSTEM, FOLLOWED QRH AND TURNED BACK TO SAT. MAINTENANCE REMOVED AND REPLACED RUPTURED HYDRAULIC PRESSURE LINE BETWEEN A-SYSTEM MODULE AND LT MAIN LANDING GEAR ACTUATOR. REMOVED AND REPLACED NR 1 & 2 ENGINE A-SYSTEM HYDRAULIC PUMPS AND FILTERS DUE TO POSSIBLE PUMP CAVITATIONS FROM FLUID LOSS. ENGINE RUN OPERATIONAL & LEAK CHECKS WERE GOOD.