As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AT TOP OF DESCENT WE GOT AN ECAM MESSAGE FOR ENGINE 2 BLEED AIR LEAK PERFORMED PROCEDURE LEFT PACK COULD NOT HOLD CABIN PRESSURE AND CABIN WENT TO 10,000 FEET. REPLACED #2 ENGINE OVER PRESSURE VALVE AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER AMM 36-11-53-400.