3509 DURING DT FOUND AIR LEAK 0.7 BAR/5 ~~~~~ 3509 DURING DT FOUND AIR LEAK 0.7 BAR/5 MINS.  3509 found WFL A/S elbow slight leak. Replaced the elbow & function check - OK. Air leak test = 0.3 bar/5 mins.  Hanafi/Chan SW 44673