Let's not beat around the bush. QF 1 at BKK was a write off. End of story. Looks like this 717 might be too. And they came awfully close to losing a 737 landing into a microburst at Brisbane. And another 737 near Church Creek. So they are simply normal....for whicch read fallible......and normal mess-ups happen to all sorts of airlines. Pride does not help in prevention.