TC reported water seepage from driving cab windscreen. ~~~~~ 3643 TC reported water seepage from driving cab windscreen. CE : T247-3643 A side Windscreen water stains marks visible but No Water Seepage. (Rain has Stop)  3643 Tested by spraying water onto windscreen using wiper water spray. Found no signs of water seepage. As preventive measure, applied silicon sealant around perimeter edge of windscreen to improve sealing.  Daniel 45275