TC reported 'A' side cab door could notbe opened from inside cab. ~~~~~ 3531 A/S cab door found pull rope broken. Removed cab door but unable to replace due to time constraint.  Sarma/wong/Anand. 31/01/2021.  3531 A/S cab door latch wire replaced. Function test - OK.  Chan GF/Selvan/Alcus. 01/02/2021.