Train doors at car 2637 'B1' door were not proven closed. TC recycled train doors once - ok. Fault d id not recur at subsequent stations. ERS-10 ~~~~~ 2637 Train doors B1 door were not proven closed. TC recycled train doors once - ok. Fault did not recur at subsequent stations. CE : N , Depot to check (OE)  1637 TIMS records showed door not proven closed instead of #2637. ER D/L & found #1637 A4 door not proven closed after 3 sec. Checked door guide for FOD, door resistance check, weather strip check & cleared J-rail as preventive measures - OK. Door cyclic test - OK.  Au TK 44650