Add ratings to FAA PPL rotary
I hold a current FAA PPL certificate with rotorcraft rating and would like to add the airplane rating(ASEL) on the basis of my current JAR PPL Aeroplanes(SEP). I guess only a Flight test is required without any need for visas and/or TSA process. Has anyone the full answer to this or a pointer to where I may find the answer? I have searched here, in FAR/AIM but may not be seeing the wood for the trees.
Stuart