T252 3660 Smoke external    ~~~~~ 3660 Smoke external CE : T252(3660) check car having smoke external pre-alarm fault(SDR11) illuminated. Check no abnormality n reset fault cleared.  3660 FC 721 (smoke external). Checked #3660 external smoke detector found no plaseal and no cable gland. Found smoke detector terminal side no gasket. Swapped SDR11 relay from #3660 to #1660. OPS 20 raised for smoke detector c/o.  Sarma/Alan/Lee PT 45395 BSD To replace #3660 External Smoke Detector