TC reported unable to open the cab doorfrom outside. ~~~~~ 3502 TC reported unable to open the cab door from outside. CE: 3502 'A' side cab door tested; unable to open from outside  3502 A side cab door unable to open from outside. Further checked found upper part of rubber mating strip at carbody side loose and jam into the door. Cut off protruding part. Serviced door latching mechanism, spring and handle mechanism. Function check able to open and close from outside. Done by: Kamal/Arvind/Imran 9.7.24