Train doors were not proven closed and TC unable to identify which car. TC recycled train doors once- ok. Fault did not recur at subsequent stations. ~~~~~ 3526-Train doors were not proven closed and TC unable to identify which
car.TC recycled train doors once - ok. Fault did not recur at subsequent
stations.

Depot to check all train doors operational check.

 Open Close speed pass: Y
FOD found: N
Door cycle 20x: Y
Rubbing marks: N
Do 10/20mm gauge test - 20mm fail for 3526 B2 and B4 doors.
Check manifold and actuator for any air leak - ok
Door manual force check - ok
Wobbly - Y
Rectification Actions:
- 3526 found B2 and B4 door 20mm fail
- 3526 B2 and B4 door were vibrating heavily; found B2 LHS and B4 LHS/RHS roller damaged/chipped.
- Replaced damaged/chipped rollers
- Adjusted B2 and B4 doors and re-checked 10/20 gauge test pass.
- Door static test pass.
- Door cyclic test no signs of abnormalities.

Done by: Saini/Asruddin/Zulq
1/10/23