So let me get this right......'unfortunately the flight happened on a day when there was not a lot of lift in the air, and coupled with the Cb forming moments before the flight landed, it was enough to make the weight of the aeroplane temporarily exceed the available lift from the wings, with the unfortunate outcome that the aeroplane could no longer keep flying at that instant, and an unintentionally excessive impact, a degree or two above design parameters, occurred with the airport environs.'
I see.