Train doors unable to open in all modes.Tripped DCB but to no avail. Train proceeded to the next st ation without pax transfer. Fault recurred at OTP1. TC of co unterbound T305 proceeded to the west cab (3563) to open the ~~~~~ DOWNLOAD ER DATA [CARD 5]. 3564 A/S TRAIN DOORS U BLE TO OPEN. CHECK ZVAR, DORA1, 2, 3 RELAY [OK]. FURTHER FOUND DCRA 1-1 RELAY FAULTY - REPLACED. FUNCTION CHECK 3564 A/S SALOON DOOR ABLE TO OPEN AND CLOSE. DIRBS RESEALED. N.ALAI.M.K //16.01.21. ---------------------