Train doors at car 2534 were not provenclosed. TC recycled train doors once - ok. Fault did not rec ur at subsequent stations. ~~~~~ 2534 Train doors were not proven closed. TC recycled train doors once - ok. Fault did not recur at subsequent stations. 2534 Depot check door function.  2534 Checked all doors - No FOD. Weather strip - OK. Cleaned J-Rail & guide rail. 10/20mm door gauging checked - Pass. No manifold or actuator leak. Door cyclic test, DZR able to extinguish. Door TIMS static test - within criteria. DMV - no residue voltage. Postulate FOD disloged. Push pull - OK. Lee JC 44969