Originally Posted by
ballyboley
Can anyone tell me why the aircraft is no longer CAT3 if MEL dispatched with a cowl ice valve stuck OPEN i.e. anti ice stuck on?
Thanks
Well, the MMEL on the TCCA website doesn't even seem to recognise that as a possibility.
But if I had to guess, I might hazard that the loss of go-around thrust due to a possibly stuck-open AI valve might throw into doubt the minimum GA height data, and so scupper the CAT 3 certification. But that is, as i say, a guess.