TC reported 'A' side cab door was jammedin open. TC isolated 'A' side cab door was isolated. ~~~~~ TC reported 'A' side cab door was jammed #3660 check and found intermittent fault in closing A side door.Check door roller condition ok.No FOD found.Cyclic cab door open & close (10x)ok.C/O cab door magnet v/v for prevention maintenance. Magnet v/v:- New: 180038 Old: 150032 Not: 2489476 raise. Done by Koh/Rizman. 17/05/23