509/510 water ingress check 10 - Leak found from M1-car no.1 end gangway, b-side fire extingisher p panel ~~~~~ 1510 water ingress check: Leak found from 1510 no.1 end gangway B/S fire extingisher top panel.  1510 #1E B/S gangway pleat found torn & patched up.  Chan SW/Hanafi 44335