Mmmm........ don't know - can't find it either! However, the ILS GP to R/W 29 @ LTFE (Bodrum/Milas) is 3.9° and we DON'T carry the plates for it. We have to fly the VOR and then circle to land. The only reason I can think of for this is that the Bus cannot (should not) fly a path greater than 3.5°. This is supposition / logic (?) on my part.
A4