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Old 21st May 2011, 22:50
  #2042 (permalink)  
RR_NDB
 
Join Date: Feb 2011
Location: Nearby SBBR and SDAM
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EMI/EMC issue?

Hi,

Question:

2:13:08 FLR/FR0906010211 34220006ISIS 1,,,,,,,ISIS(22FN-10FC) SPEED OR MACH FUNCTION,HARD
2:13:14 FLR/FR0906010211 34123406IR2 1,EFCS1X,IR1,IR3,,,,ADIRU2 (1FP2),HARD
2:13:16 ~ 2:13:41 Possible "Loss of Signal" with satellite

Could be this facts be associated to Lightning?
And subsequently:

2:13:45 WRN/WN0906010213 279002506F/CTL PRIM 1 FAULT
2:13:51 WRN/WN0906010213 279004006F/CTL SEC 1 FAULT

A very strong "interference" can even reset a System and in extreme cases damage buses ("connections" between sub systems), etc. I know Airbus SAS redundancy is also on the physical location of critical modules. And i know the a/c interior is protected (inside a Faraday shield). And also the lightning activity at that night was reported as "low" at the region.
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