TIMS showed Smoke Internal at car 1510.Staff(BSH) checked and confirmed no sign of smoke on interio r of train. TIMS showed Smoke Internal at car 1510. Staff(BS H) checked and confirmed no sign of smoke on interior of tra ~~~~~ TIMS showed Smoke Internal at car 1510.   #1510 checked and found number 2 end internal smoke detector sensor dusty, replaced and function check ok. Notification to CSC: 2583990 Done by: Saini, Din, Morgan (28/3/24)