Please can you point me to the regulation that states that you need a Biennial flight check, in the USA, even with a CAA/EASA piggy back licence?
I too have looked into this and, although I don't have the FARs to hand at the moment, I remember that one of them states that an 'Airman Certificate' is only valid if you have a current BFR.
Also how do you record the biennial? The FAA don't give you any paperwork to log it on as proof.
A BFR is recorded in your logbook just like your 'Hour Traing Flight' under EASA.
My CAA Biennial is in date as I have recently completed it & sent the relevant paperwork off to the CAA with my instructors signature recorded on my CAA/EASA licence.
Your EASA 'Hour Training Flight' Is not the same as an FAA Bienniial, and I hope your Instructor was also an Examiner, as Instructors can't sign EASA Licences.
MJ