Part 121 & CFIing
I'm sure this has been asked a million times, so I apologize up front
Does it break the "no external commercial flying" rule if you do BFRs/IPCs etc (as long as the student's currency hasn't lapsed), since the other guy is qualified as PIC? Don't the FARs say that you aren't providing a "pilot service" by instructing in these situations since you don't even need a 3rd class to do it?
Thanks guys. Looking for ways to make a little extra on the side