@411A
How many other aircraft types, lomapaseo, have repeated problems with pitot probes icing up (or indeed, any other indicated airspeed difficulties) at altitude that you have heard about recently?
Last week a Polnish B767 experienced some related problems. But I think that many incidents passed unrecognized, right now the industry sure is sensitized about 'pitots'. Seems to me also that the very achitecture of the A330 in respect of its FCC might have to do with it, as it is the most advanced.
Anybody to comment on the switching logic of the Antiicing System. I learned that the Ice Sensor is switching Pitot Heat to ~200°C inflight with the Antiicing Switch in 'Auto'? Switch to 'ON' would keep it at that value?