Train EB was applied while departing station in Auto mode. Released EB - ok. Thereafter, train proce eded in AM. Fault recurred at KRJ2. ATS alarm showed 'Train doors status lost', however TC reported no abnormalities wer ~~~~~ Train EB was applied while departing sta #3527 Check and found B/S cab door latch mechanism screw missing.Replaced screw and resecure.Function check open/close door ok.No abnormalities found. Done by Gopal. 27/12/22