A0283,
Prada is it possible to post the FR24 data or statements that you are referring to?
I was going through FR24 data once again. Look here:
Crash of Metrojet Flight 7K9268 | Flightradar24 Blog
It looks like after initial event plane lost yaw control. - tail fin was lost or gaping hole created in fuselage creating non symmetric drag, or both
with plane loosing yaw control, static ports might become not as static as required for correct flight level indication. Due to abnormal attitude against airflow.
I wonder which ADIRU data was fed to ADS-B? Captain side? Then we can tell yaw attitude via abrupt flightlevel changes. Compared to GPS data.
