Bedroom exit window partial replacement
Was driving this week and, at some point, part of the bedroom egress window fell out. The window is two panes - a fixed upper pane, about 2/3 of the vertical surface, and a tilting lower pane for ventilation. It was the tilting lower pane that fell out. I did not see it fall out, we only found out after stopping.
I called Newmar and I can get a replacement lower pane or an entire new window. The problem is, I don't know if I have all the parts if I just order the lower pane. Newmar said they only have the lower pane and if the hinge hardware is missing, then I'll need to order an entirely new window. However, looking at he now-empty hole where the lower pane used to be, I do not see any pins, holes or other obvious point where that the upper part of the pane would attach to the frame.
Is anyone familiar with this type of window and knows how they are attached? A picture of the hinge portion of the tilting pane would be very helpful - I haven't been able to find anything on Google and haven't been able to find another source for this type of window.