T406 1504 Smoke internal ~~~~~ 1504 Smoke internal.  1504 Checked TIMS FC 720. Checked internal smoke detector pipe, no sign of dust or water at the piping inlet. S wop #1504 SDR1 and SDR2 to #2504. Ops 20 raised to check on internal smoke detector unit.  Alan/Lee PT/Anand/Kamarul/Shafie 45256 BSD To check 1504 Internal Smoke detector  1504 FC 720, Replace #1 end internal smoke detector. Security check and funtion test ok.  to CSC : 2549193 Done by Saini/Haslan 45267