Sorry for my delay... busy week.
Unfortunately, I did not find any good pictures in my research that would clarify the right position of the cable. Maybe this link will help? Picture #2 shows you the ribbon cable... Or this picture here (Picture #3; click to enlarge)?
Adding to this issue, I found an earlier posting here on iFixit, addressing the same question (further down). Unfortunately, I do not own a MBA and have never fixed the screen in order to be able to give you a definite answer.
In general, the defective cable is not fixable. And, since it is really difficult to get (and if, then it seems to be really expensive), I would look out for a used LCD Back cover, like this one here.
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