Svarin:
02:11:55 EFCS1 X2,EFCS2X,,,,,,,FCPC2 (2CE2) / WRG:ADIRU1 BUS ADR1-2 TO FCPC2, HARD
From BEA Interim ACARS report:
ATA: 279334
Source: *EFCS1
Identifiers: *EFCS2
Class 2, HARD
This message indicates that FCPC 2 no longer considers as valid the information that is
delivered to it by ADR 1 (via bus 2). The ATA code beginning with 27 indicates that the fault was not detected by any other FCPC during the three seconds that followed (otherwise this message would have been classified ATA 34). This message has not been fully explained at this stage of the investigation.
In my knowledge the slash "/" is used when an ambiguous fault occurs.
Up to 3 possible failures may be indicated with the most probable possibility on the left. (FCPC 2 FIN 2CE2)
A "+" sign is used when there are multiple faulty components involved.
could multiple FCPCs retain their own personal flight law, differing with their "clones"
No!, only 1 FCPC or FCSC is in control, this will be the FCPC(FCSC) which has the highest level of law (The Master), Normal order FCPC 1,2,3 FCSC 1,2.
The Master transmits it's deflection orders to the other computers, which executes these to their own sets of servo's.
A FCPC is able to engage Normal law(all protections), Alternate Law(reduced protections) and Direct law(No protections), FCSC can only compute Yaw alternate law and Direct Law.
After Loss of normal laws the reconfiguration of control laws is different for the pitch axis and for the lateral axis.