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Old 3rd June 2011 | 00:01
  #1168 (permalink)  
A33Zab
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Joined: Jun 2009
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From: somewhere
Abnormal Attitude Law

PVT
In the Flight Global article, they are making the distinction that the aircraft never went into the abnormal attitude law because the flight computer had rejected the information coming in from the ADRs before those parameters were met. The aircraft was already in alternate law from the loss of airspeed. The last underlined part is saying that the flight computers would have to see 'acceptable' data from the ADRs to trigger this law like the examples given.
If AOA is available for FDR it should be available for other systems too (benefits of ARINC429),
I've read in system schematics that there is a separate AOA backup signal bus to FCPC's.
On second thoughshould have been activated by AOA >30 @ 2h 11 min 40 ts that may be only on –BUSS- equipped A/C.
I'll come back to you if I got that in hand.

Besides that, if you combine the 3 BEA reports together, the Abnormal Attitude Law before NAV ADR DISAGREE warning msg @2h 12. (Received 2h 12 51)

@Bear:

Don't change the rules and call it something it ain't
.

Just trying to clear some operational 'misunderstanding' of FBW and laws from an E&M point of view. If not appreciated just say so.




@Dozy:

Agree with you.

Last edited by A33Zab; 3rd June 2011 at 00:16.
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