As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: BLUE HYD LO PRESS ECAM ON TAKE OFF BLUE HYD QUANTITY INDICATED LOW. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO PHX WHERE IT LANDED SAFELY WITH OUT FURTHER INCIDENT. REPLACED BLUE HYDRAULIC SYSTEM ACCUMULATOR DUE TO INTERNAL FAILURE AND ACCOMPLISHED A SATISFACTORY LEAK AND OPERATIONAL CHECK PER AMM 29-12-42.