TIMS showed Smoke External at Front M2 car. Staff (PYL) checked & feedback no abnormalities. TIMS sh owed Smoke External at Front M2 car. Staff (PYL) checked & f eedback no abnormalities. ~~~~~ * ,N * 2537 FC-721 Smoke External registered - fault able to reset, unable to duplicate in depot. Checked smoke external sensor - no abnormalities found. No water ingress. Preventively cleaned smoke sensor and replaced smoke sensor head. Checked fire panel - ok, no water ingress. Diode checked - ok. Smoke sensor function tested ok. DONE BY:KUMAR/FAIRUZ 31.01.2024