511/512 Air leak test failed (1 bar/5min ~~~~~ 511/512 Air leak test failed (1 bar/5min).  2512 Bogie 2 AS test point plug found leaking & #2511 Bogie 2 car height failed. #2511 levelling v/v found abnormal sound with air constantly charging but car height unable to rise up. Car height at 825mm. Checked strainer/check valve unit no chokage. Replaced #2512 faulty AS test point plug. Re-adjusted #2511 Bogie 2 adjusting rod for levelling v/v to 855mm. All saloon car doors actuator/manifold checked no air leak when doors are opened. Performed pneumatic system check as per checklist. (refer to attached checklist for details).  Abdillah/Helmi 44367