"Andy" wrote in message
ps.com...

I hold GI, AGI, and IGI certificates. I took the tests beacause I had
studied all the required material for the flight instructor ratings. I
don't expect them to be useful unless I fail to keep my CFI rating
current. I know of nothing a ground instructor can do that a flight
instructor with equivalent rating cannnot.

There is one small advantage of a ground instructor certificate. Strangely
enough, they don't have the record keeping requirements of a CFI. So if you
sign someone off for a test and use your ground instructor certificate, you
don't get a black mark if they fail the written and you don't even have to chase
them to get the results of their test so you can log it as required by far
61.189.

Vaughn