TC reported 'A' side cab door unable toopen due to door handle loosen. ~~~~~ 3559 TC reported A/S cab door unable to open due to door handle loosen. CE : T424(3560) - 3559 cab door A/S unable to open from inside manually/electrically.  3559 A/S cab door found cable broken. Replaced the cable. Security/function check cab door - OK. Cyclic test open/close cab door manually/electrically - OK.     Alan/Lee PT/Shafie 44434