I think the reason you aren't supposed to do it is that for a stand-alone
NDB approach, the accuracy of the location of the NDB in the GPS database
has not been verified.

"Newps" wrote in message
...


Jim Burns wrote:

Thanks. Just got home and that was my interpretation of the AIM. As for
Jose's question, Newps answer concerns an NDB only approach, not a NDB
GPS
overlay, and the reason being is that because in an NDB only approach you
must have the proper radios for the approach.

Which is baloney. My terminal/enroute GPS has the NDB in its database.
There's no reason I can't fly the NDB approach with my GPS. And I'll fly
it 100 times more accurately than anybody else with an ADF.