Originally Posted by
Bloodhound
I agree, no longer capable of RVSM. Of course, you could inform ATC and they could make the excpetion time/traffic permitting. But even in that case, you're still not technically RVSM capable. At least that the way I understand it.
They, (ATC), will probably be the first ones to notice that that your transponder is TU.
The world is a whole lot prettier at FL280 and below anyway
fbh