As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT NOT GROUNDED. ECAM MESSAGE AIR ENGINE 2 BLEED ABNORMAL PRESSURE CAME & WENT 3 OR MORE TIMES AT FL 330, CABIN WAS FLUCTUATING & CLIMBING 300-400 FEET PER MINUTE STARTED EARLY DECENT. REMOVED AND REPLACED # 2 ENGINE PRESSURE REGULATING VALVE PER AMM 36-11-52.