Train doors at rear M1 car were not proven closed. TC recycled train doors 3 times - ok. Train doorsat rear M1 car were not proven closed. TC recycled train do ors 3 times - ok. ~~~~~ Train doors at rear M1 car were not prov     FC 083 Fault trace 80cm gap.#1626-A4 door operation time out(CLE)Static test pass.FOD not found.Door cycled 20x but no wobbling.No rubbing marks,door push/pull force 6.8kg.Door mating gap 64mm.Door lock s/w red line ok.Door close s/w distance ok.Service and cleared J & Guide rail. Done by Luke. 02/02/23