@JD-EE
Unfortunanly it's called SATCOM Antenna not ACARS Antenna, and this one is steerable.
@Graybeard
Anyhow, going through the downlinked ACARS messages like published in "Der Spiegel" 24/2009 page 129, all warnings happened from 0210Z.
There are 2 failures downlinked with the same time tag:
341115 and 279334 .
Checking the TSM for the operational MSG F/CTL ALTN LAW with failure in 341115 it points to PROBE PITOT 1+2/2+3/1+3 detected by EFCS1 or 2.
279334 does not refer to ALTN LAW, its going direction RUD TRVL LIM FAULT
Referring TSM
TASK 27-91-00-810-822
Disagree of the Pitot Probe Data in the FCPCs
The rest on you guys , I'm out now, let my name out of the game