RatherBeFlying,
great info.
If AF358 got this "big push", then its airspeed would have decreased. But it actually increased by 2 knots between threshold and touchdown point (although we do not know how it may have fluctuated in between).
So if there was an increase in tailwind after the threshold, thrust must have been increased for the increase in airspeed to happen. But according to the TSB briefing, engines were idled at the threshold.
So, assuming thrust remained at idle after the threshold (not explicitly said in the TSB briefing ?), 148 knots at touchdown point is not consistent with an increased tailwind all along the 1st 4000 ft of the runway.
What do you think ?