As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAS - DIVERSION - FLT 0470 - EN ROUTE FROM PHX TO BUR ECAM INDICATED YELLOW HYDRAULIC SYSTEM LOW QUANTITY, AIRCRAFT DIVERTED TO LAS. MAINTENANCE FOUND HYDRAULIC LEAK AT QUICK DISCONNECT (3701GM) ON YELLOW HYDRAULIC SYSTEM MAIN POWER MODULE, REMOVED AND REPLACED DETERIORATED O-RING AT QUICK DISCONNECT, OPERATIONAL AND LEAK CHECK COMPLIED WITH IAW AMM 20-29-00-911-002.