As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: ON DEPARTURE THRU 1500 ECAM REFLECTED #1 ENGINE AIR BLEED FAULT, SYSTEM RESET WAS ATTEMPTED BUT FAULT REOCCURRED. AN EMERGENCY DECLARED AND THE AIRCRAFT RETURNED TO PHL WHERE IT LANDED SAFELY WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED LEFT ENGINE BLEED AIR PRESSURE REGULATING VALVE AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER AMM 36-00-52-400-042.