What was found
FLT # 6427 BOS-TPA, REF TASK CARD A320-33-51-00-710-003, BATTERY CAPACITY FAILED OPS CHECK AT 10WL, 11WL, 12WL AND 13WL ; REF AIRBORNE NR 2890N54, REMOVED AND REPLACED BATTERY PACK 10WL, 11WL, 12WL AND 13WL IAW AMM 33-51-38-000-002-A, 33-51-38-400-002-A. PERFORMED OPERATIONL TEST "GOOD" IAW A32- AMM 33-52-00-710-001-A.