"Guillermo" wrote

Now, I wonder what would have happened in case both people had been
pilots.
Will they suspend both? Technically only one of the pilots is the PIC, and
I've been told that it is a good idea to agree on that before a flight
(who
is the PIC), but I wonder who would they charge in that case?

It seems to me that charges could also be filed, for letting a non pilot
manipulate the controls. Since the 70 year old is not a CFI, the student is
just the same as a non pilot, and if he (the student) was PIC, he would be
in violation for taking a passenger with him. Both of these are against
regs, aren't they?
--
Jim in NC