TC reported train door at rear 3669DT car not proven closed. TC opened
and closed train doors few times- ok.


CE:confirmed B2 door close with a GAP approx 8cm. Fault intermittent.
Door been isolated at Cck station. ~~~~~ Downloaded PTU from graph. Observed the graph to be not smooth. Cleaned and lubricated the J-rail and bottom door track. Door resistance reduced, graph become smooth. Conducted door cyclic test, no abnormalities. Short loop to monitor. Done by Ting Wei 25/03/20.