TC reported MR pressure dropped to 8 barwhen train arrived at platform. TC then feedback MR pressur e slowly charging up to 9 bar. TC reported MR pressure dropp ed to 8 bar when train arrived at platform. TC then feedback ~~~~~ #3522 MR PRESSURE DROPPED TO 8 BAR ARRIVING AT PLATFORM.CHECKED FOUND #3522 CAB MR TEST POINT LEAK.NO SPARE AVALIABLE.CONDUCT PREMATIC TEST #3522 IN AUX ON CUT IN 8.31 BAR,CUT OUT 10.32 CHARGE UP TIME 1MIN 19 SEC.CHECKED #3522 IN LOCAL ON CUT IN 8.34 CUT OUT 10.34,CHARGE UP TIME 3MIN 37 SEC.CHECKED #3521 IN AUX ON  CUT IN 8.34 CUT OUT 10.34.CHARGE UP TIME 1 MIN53 SEC.CHECKED #3521 IN LOCAL ON CUT IN 8.33,CUT OUT 10.29.CHARGE UP TIMES 3 MIN 32 SEC.TO RAISE OPS20 TO FOLLOW UP.AIR LEAK 1 BAR 5 MIN,ZAHIR/AZHAR 15.07.2024  FOUND 3522 MR TEST POINT INSIDE CAB AREA AND FOLLOWING TEST POINT #3522 NO1/2 AT A/S  NO 2 AT B/S #1522 NO 1 A/S,NO 2 B/S #2522 NO 1/NO 2 A/S,NO 1/2 AT B/S  #2521 NO 1/NO2 A/S,#1521 NO 1/NO 2 A/S , NO2 B/S #3521 NO 1 B/S.LMRG TEST POINT  AT #2521,CG TEST POINT AT #3521 ABOVE ALL LOCATIONS TEST POINT C/O DONE.#2521 AND #1521 B13 VALVE UNION    JOINT PIPE LEAK READJUSTED OK.#3522 CUT IN 8.4 BAR,CUT OUT 10.33 BAR ,CHARGING RATE 2 MIN 05 SEC.#3521 CUT IN 8.5 BAR,CUT OUT 10.35 BAR CHARG RATE 2 MIN 06 SEC.LEAK RATE 5 MIN 0.5 BAR.HARIHARAN/JIMMY/RAGHU 15.07.2024