SAS,
Quote:- "That means the probability of failure is less than one in a billion - a fleet of a thousand aircraft flying 1000 hours per year flying for 1000 years should not experience such a failure."
It does state where in that one billion an incident will occur: it could be during the first 100 hours or equally it could be in the last 100 hours. Who knows? Don't get me wrong; this event must be thoroughly investigated and steps taken to try to make the odds better than one in a billion. As a current EC225 driver, I have a vested interest!
bondu