665/666 MR Pressure unable to charge up. ~~~~~ 665/666 MR PRESSURE U BLE TO CHARGE.CHECK CONFIRM FAULT.FOUND LEAKING AT M2 TO M2 COUPLER.ISOLATE MR COCK ABLE TO CHARGE.UNCOUPLE TRAIN AND COUPLE AGAIN FAULT STILL OCCUR.UNCOUPLE TRAIN C/O MR RUBBER SEAL SERVICE DONE.SECURE CHECK/FUNCTION CHECK COUPLE FAULT NOT OCCUR.CHECK MR CUT IN/OUT ON BOTH END OK.CHECK LEAK TEST OK.LEONG/HARIHARAN 25.09.2023