TC reported water leaking from detrainment ramp. ~~~~~ 3631 TC reported water leaking from detrainment ramp. To check the rubber seal for any damage/worn. CE: 3631 water stains mark at the the top of detrainment ramp.  3631 detrainment door rubber seal dislodged - resealed.    Performed water leak test - OK.  Aminur/Azmi/Safwan 44035