Another little known fact is that although a STANDALONE FAA licence entitles you to fly 'N' reg things which if they were on the 'G' reg would require a type rating (ie. FAA ASEL Class Rating covers you you fly a Caravan etc) this is NOT so with the 61.75 'foreign based' or piggyback licences.
A foreign based FAA PPL will appear to include ASEL and AMEL class ratings, but in fact it DOESN'T! It is simply giving you entitlement to your foreign licence privileges in an 'N' reg aircraft - it's NOT giving you new privileges that you don't already have.
So anyone one burning around in an 'N' reg Caravan, Malibu or King Air on a 'piggyback' FAA licence who doesn't have a type rating for that aircraft on their foreign licence, is doing so illegally.
See below . . .
http://www.aaib.gov.uk/cms_resources...2W%2008-08.pdf