The two PFRT
test firings, one at high temperature and one at low temperature, were conducted at Aerojet's testing facilities in Orange, NJ, and Camden, AK.
He probably used the later and current "B" designation for those who today would have no idea of what a "TF was, and (2) the reference to the "F-15B flight in July," which coming right after the PFRT
date of February 1972, implies July 1972.
In February 1972, the YF100 (Series I) engine passed its PFRT
milestone on schedule, in time for the first F-15B flight in July.