523/524 DT reported Air leak test failed ~~~~~ 523/524 DT reported Air leak test failed     Air leak test 1.0/5min on #523/#524.Found #3523 washer tank was isolated and tagged due to air leak.#3523 & #3524-A side WEL filter pipeline kit replace.#1524-AS B2 test point leak-replaced.#2524-check v/v test point leak-replaced.#2523-LMRG test point replaced,AS-A1 test point replaced.CR cock pipe joint tightened ,#1523 dump v/v pipe joint tightened.CR test point replce,check v/v pipe test point replace.#3523 Air dryer pipe joint air leak-tightened,CR cock pipe joint air leak-tightened and AS cock pipe joint air leak-tightened. Done by Saini/Haslan/Haikel. 29/06/21