320 is for the low-cost carriers like asia. it has exceptional fuel efficiency. there's a new version coming out. all in all it carries about 180, 183 passengers, depending on the configuration. and what we have here of course is airasia indonesia running it in its maximum configuration. >> richard, many of our viewers who are just joining us may seize on these reports we're getting that the pilot reportedly requested a route change, an unusual route change. how common, how unusual i should say is that? >> well, in the sense that we don't know, a, if he did. and b, the reason why. we can speculate to our heart's content. the truth is pilots will often request a different routing. it might be for weather. it might be for all sorts of -- for technical reasons.