TC reported difficulty in opening 'B' side cab door in Front Cab car 3523. TC reported difficulty inopening 'B' side cab door in Front Cab car 3523. ~~~~~ 3523 TC reported difficulty in opening B/S cab door. ORC SB  3523 B/S cab door No FC. Checked and found B side CAB door bottom cable broken. Replaced with new cable & function test - OK.  Sarma/Alan/Kamarul 45469