511/512 Air leak test fail 1.3b/5min to ~~~~~ 511/512 Air leak test fail 1.3b/5min to     Check and found #3511 & #1511 brake frame test point leak-c/o.#2511 MPV leak-replace O ring and brake frame test point leak ,c/o.Air leak test 16bar/5min.Isolated M2 M2 MRIC found 512 air leak 16/ and 511 air leak 0.3/5min.Isolate BIC 512 side air leak test 0.6b/5min.Replace 512 3 car strainer check v/v filter and gasket ok.#2512 bogie 2 brake test point leak,c/o and LMRG test point leak,c/o.Air leak test 6 car 0.46b/5min. Cut in-8.6bar,Cut out-10.4bar,CT-2min 45s,Air leak test 0.46bar/5min. Done by Sanip/Rizman/Koh. 14/11/22