Malone Duke,
I ran into the same problem, tried to figure out where the hole was for....no result! I dug-up my reference pics, again no direct result, so I opted to fill it up, using a small disc of Evergreen and some putty, after sanding no-one can tell it was there. After placing the search light it was completely invisible!!
Not sure if my action was historic correct, but better than leaving a hole in my model...
Grtz, John.