“then fell into the sea from a height of about 50 metres.”
I hope the flight was higher than that, or there were a lot of terrorized sea creatures left in its wake.
That is curious in itself, as the airport is listed as being at 14 FEET (less than 5 metres) above sea level. If the aircraft, now boat, fell from 50... then it did so by bouncing into the air. That's typically what happens when a pilot lands too fast and tries to force the plane onto the ground.