 which meant that it escaped any sort of trial or being found guilty of any criminal charge as long as it agreed to clean up its act and to modify its internal processes. Now, earlier this year, there was another serious incident involving the same family of aircraft, the 737 MAX, in which an unused door plug fell off a plane shortly after take-off. And in the wake of that, it emerged that the door probably hadn't been fitted properly, and there were other allegations of fraud.