What was found
ETOPS - ON TAXI IN SINGLE ENGINE, WITH ENG #2 SHUT DOWN, WHEN TURNED ON APU BLLED, AIR ENG 2 BLD NOT CLSD ECAM APPEARED. PERFORMED ECAM ACTIONS. REMOVED AND REPLACED #2 ENG BLEED VALVE (4001HA) IAW A330 AMM 36-11-52 OPS CHECK GOOD NO FURTHER DEFECTS NOTED