I have an interest in flying an African route from Nairobi(HKJK) to Juba(HSSJ), I can do this fine in default FSX aircraft. However when I use one of my more hi-fidelity add-ons that use a FMC with the current Airac loaded (ok not quite current I'm on 0908) there appears to be a juxtaposition of Juba by about 30 miles. Has anyone else noticed this or have I set up something wrong ? Or is it a undocumented feature of FSX ? :(

I have an interest in flying an African route from Nairobi(HKJK) to Juba(HSSJ), I can do this fine in default FSX aircraft. However when I use one of my more hi-fidelity add-ons that use a FMC with the current Airac loaded (ok not quite current I'm on 0908) there appears to be a juxtaposition of Juba by about 30 miles. Has anyone else noticed this or have I set up something wrong ? Or is it a undocumented feature of FSX ? :(

The data that your add-ons use is not necessarily the same that is in FSX.

I believe having misplaced airports in your addon is a sign of some kind of corruption not a problem with navdata. Is it a pmdg airplane?

Not sure what the problem is, but it looks like the HSSJ in default FSX is exact compared to Google Earth:scott s..