Hi Boroda
here is my read on the event as best as i could
The first bounce might have been caused by a late flare with or without a downdraft caused by weather
The thrust levers were either retarded to idle completely or out of the CL detent on the way to idle at some intermediate position...but the thrust did not dissipate completely by touchdown and 50% of it was still produced by the engines..which, coupled with the reaction to the downward force produced the bounce
350 fpm at touchdown the first time corresponds to a HARD landing
It appears that the PF accepted the bounce..kept his thrust levers at idle and kept his pitch constant for the second normal touchdown at 200 fpm
(no pitch change)
As for the load being constant at 2.2 g...well i don't know...but my guess is that it is the sum total of the load exerted on the aircraft at this phase
best regards...
Bf