As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AIRCRAFT LOST THE YELLOW HYDRAULIC SYSTEM AFTER RECEIVING A LOW LEVEL WARNING. AN EMERGENCY WAS DECLARED AND THE FLIGHT LANDED WITHOUT INCIDENT. REMOVED AND REPLACED YELLOW SYSTEM POWER TRANSFER UNIT IAW AIRBUS MAINTENANCE MANUAL 29-23-41-400-001-A.