2619 - AIR LEAK 1BAR/5MINS. SUSPECT LEAK ~~~~~ 2619 AIR LEAK 1 BAR/5 MINS. SUSPECT LEAKING FROM M2-M2 COUPLER.  2620 checked/found A/S auto coupler directional v/v air leaking from the exhaust port. Replaced #2620 A/S electrical head cylinder(pneumatic side). Notif 2494902 raised to HM to replace directional v/v. NOTE : #2619 & #2620 MRIC isolated. Pneumatic System Test :  #3619              #3620 Cut-in  :                8.4 bar            8.4 bar Cut-out :                10.5 bar           10.4 bar Charge-up Time :         2 min 46 sec       2 min 42 sec Air Leak Rate  :         0.5 bar/5 min      0.5 bar/5 min  Anand/Kamarul/Sarma/Alan/Lee PT/Shafie/Sugu 45083 Notif 2494902 Nameßßßßßßßßßßßßßßßßßßßßßßßßß : UPD Support Team Date of Occurrenceßßßßßßßßßßß : 5/6/2023 Last Service Dateßßßßßßßßßßßß :   EMU / Equipment / Locationßßß : 2620 / A-side Auto Coupler                                       Electrical Head Equipment Serial No. (if any) :   Description of fault / causeß : Continuous air purging at 2620                                   directional valve. Measurements (if any)ßßßßßßßß :   Required Rectificationßßßßßßß : Required Pneumatic Cylinder C/O