An issue has come up that is cause for some concern so I hope I can get some answers before proceeding further.
A CFI/pilot gives another CFI/pilot a bi-annual. The check out required of all pilots every two years is what I'm getting at, here.
Turns out the first CFI's own bi-annual was out of date.
Does it follow that the second CFI/pilot is also now out of date and all instruction given to other students after the bi-annual expired is null and void?
How far out does this affect others who had nothing to do with the first CFI's screw up?
Thanks


