"Eric D" wrote in message
oups.com...
This is the part I don't fully understand. Would not a valid flight
instructor have to have a current medical too?

As long as the person receiving the Biennial Flight Review can legally act
as PIC (current medical, current to take passengers, within the previous
Biennial review period, ...), then they can still *act* as PIC with the CFI
simply a "passenger". The CFI then does not need a current medical since
they are not exercising the rights of PIC...

Michael Pilla