What could these possibly incorrectly translated numbers for aircraft speed have been?
I think there is some information lost in translation. 

The speeds of 13000 kmph are associated with reentry vehicles. The aircraft won't have had time to accelerate to that speeds in the first place, even if there is no atmosphere. 

The (forward) speed is usually measured in mph in US (to the best of my knowledge). The vertical speed is given usually in feet per minute. Note that the aircraft speed is usually given in knots (or its Mach number) by convention.

Now, the numbers you've quoted:


7000 When the autopilot disconnected, the roll angle increased in two seconds from 0 to +8.4 degrees. In response, the Pilot Flying (PF) applied nose-up sidestick inputs, which the Investigation termed as abrupt and excessive. As a result, the aircraft started to climb at 7000 ft/min.
200 The (vertical) speed at impact was around 108 knots (10,912 ft/m), which is around 200 kmph.
13000 I'm not sure about this one. The maximum altitude reached was less than this value (~11500m actually), so doesn't make sense. The only thing that is related to this number for that flight was the depth at which the wreckage was found- 3,980 metres or 13,060 ft.


Note: Most of the data is from the Final accident report of Air France 447.