3604 A3 door not proven close. To check ~~~~~ 3604 A3 door not proven close. To check    #3604-A3 door checked no FOD,push/pull gauge test,door gap are ok.Serive door top & bottom guide rail and door cycle test ok.Found #3604-A1 door isolation device was damaged,replaced and function test ok. Done by Jack/Sateesh/Koh. 24/05/20