Pax feedback to station staff (WDL) car1529, there was an anbnormal noise coming from the train doo rs when closing. Staff (KRJ) confirmed slight squeak sound a t RM1 'B2' and 'B4' train doors when closing. There was no o ~~~~~ 1529 Pax feedback to station staff (WDL) there was an anbnormal noise coming from the train doors when closing. Staff (KRJ) confirmed slight squeak sound at RM1 'B2' and 'B4' train doors when closing. There was no obstruction found. CE feedback 1529 B3 door slight squeaking noise when closing.  1529 B3 door found lintel cover latch loose causing squeaking    noise when door was closing. Re-aligned the cover - Done. Function test open/close doors 20x - OK. Checked B2 & B4 doors, no abnormalities found.  Kana 44145