TC reported DIR lights up intermittentlyfor few seconds. No DMI indication on TIMS. TC reported DIR lights up intermittently for few seconds. No DMI indication on TIMS. ~~~~~ * ,N * 'Ops10 ER downloaded. ER shows DIR drop and recovered (1x) Conduct all train doors check for FOD, cyclic test 20x, 10/20mm gauge and air leak check Found air leak at 2539 A2 door manifold DONE BY:MUTALIB/YANTO 28.12.2023 * ,N * Ops20 Replaced 2539 A2 door manifold and function tested ok Checked both DT cab doors rigging - ok DONE BY:KUMAR/TEH A.M 28.12.2023