559/560 Air leak test fail. To check and ~~~~~ 559/560 Air leak test fail. To check and     #3559 & #1559 ACU having air leak.-replaced and function tested ok. #3559 ACU-Old s/n: 1302-050  New s/n: 1044-028 #1559 ACU-Old s/n: 1302-132  New s/n: 1240-099 Not:2122109 raise to RSW. Done by Low K.H./Haslan/Henry 18/01/20