Searching for One of the panes on my upper non movable sash and I'm upstairs and wonder if there is a way to remove the sash for replacing the small pane NUAIR window is broke o

Thanks for reaching out to us. I'm afraid we can't help with this. We don't sell replacement windows or glass, unfortunately. A local glass shop may be able to advise accordingly. I am very sorry that we won't be able to assist with this repair but please let us know if you have any other hardware questions.