3541 All Gangway Wet. To check & rectify ~~~~~ 3541 All Gangway Wet.  EMU 541/542 found multiple water leak on gangway & RAD. Also found gangway locking mechanism loose. Resecured all loosened locks.    Found multiple evaporator compartments water ponding. Purging done for all cars A/c units. Monitor for 1 hr & found no reoccurance of water leaking.  Kamarul 44198