My WoAI AC are touching down about a 1/4 mile south of the runway (4L) which puts them in Boston Harbor. The only AFCAD file I have for FT KBOS is the file that came with the program. There are no other AFCAD's for KBOS anywhere on my system. I have patches 3.1 & 3.2 installed. Can I adjust the glide slope to correct this and if so, just where would I put the NAVAID?