TIMS showed Smoke External Alarm at car2543. Staff(AMK) checked and confirmed no signs of smoke or fire, Rear T411 line clear and confirmed no abnormalities. ~~~~~ TIMS showed Smoke External Alarm at car 2543. Staff(AMK) checked and confirmed no signs of smoke or fire, Rear T411 line clear and confirmed no abnormalities. CE:2543 smoke external alarm reset ok, 3543 ok, no smoke alarm    Depot check  Checked 2543 smoke external detector. Found that the smoke detector sensor latch was cracked. Replaced smoke sensor and function tested ok. Cable gland was present. S/N: N.A Notification: 2589791 Done by: Jack/Koh/Rizman 16.4.24