water leak 2014 fuzion 342

[Luckybuck55]

Water leak in bedroom emergency window, on a heavy down pour water is coming in around bottom of window, I tried to tighten up latches on window to stop, after rain the next day! Has anyone else had this problem if so what do you do to fix? I think I might have to take window frame out to fix or can I seal around frame on outside, this is the flat window only bottom of window opens which is the emergency window.