difficulties. there have been so-called fastener issues, which holds the plane together. none of which have been safety related. the faa have made this quite clear. but the max as such has been bedevilled and the one real reason is this is boeing's cash cow in a sense. they've got 4,000 of them they've got on back order. so for this to be happening will be deeply worrying for boeing on one level. firstly, how did it happen? a brand-new plane like this. was it a manufacturing fault? was it a materials fault? was it an engineering fault? was it an airline? i mean, whatever it was, and then the second thing is how do you keep confidence in this aircraft which was grounded several years ago after two crashes, has been delayed in production because of supplier problems and now has this issue. i always used to say that