keith mckee airline captain joins us via skype in orlando florida, thank you very much for your time. this is a modern passenger plane and as richard says, we get a senseth they can fly through anything. can this particular aircraft, airbus 320 can it still be affected by bad weather? >> yes, any aircraft can be affected by bad weather. usually there are other circumstances that can complicate the situation rather than just being a weather situation. for example, if we had a problem with the anti-icing system on the aircraft could be that we would be getting extraneous and erroneous information. that could lead the aircraft astray. is a-320 is a very modern aircraft, it operates by computers. the aircraft are fly-by-wire rather than conventional control as used in the boeing 737. these could be affected by icing that might send erroneous information to the computers. >> the pilot was said to have requested change in altitude from 32,000 feet to 42,000 feet to avoid clouds, would this be enough to make sure the plane was outside the danger zone? >> it's very difficult to tell. the clou