PPRuNe Forums - View Single Post - AF 447 Thread No. 8
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Old 22nd Apr 2012, 13:43
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A33Zab
 
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@ O.C.:

All Thales probes have been replaced per AD.

Besides the probe replacement program, several hardware and software changes have been introduced, IMO they are optional and not mandated.

- BUSS (SW always available) - already available before AF447!
- FMGEC: AP/FD not available after UAS condition. (Last MOD)
- FCPC: F/CTL ALT LAW (PROT LOST) ECAM MSG accompanied with reason. (Last MOD)
- FCDC: More rigid USE MAN PITCH TRIM PFD message when autotrim not available. (Last MOD)
- FWC: **NAV IAS DISCREPANCY MSG When 2/more IAS are detected to be different.
Added AoA data filtering to improve SW detection in turbulent conditions.

- AoA: Conical shaped ground base to prevent water ingression. (Last MOD)

** Don't know if F-GZCP was equipped with this mod but the mod was available at that time. (BEA doesn't mention the presence of this message, suspect it was NOT available in F-GZCP)

The B787 is equipped with ADR voting logic, details are not known by me, but the fault isolation logic determines which ADR supplies PFD.
Above that there seems to be a synthetic AS available when the voted fails

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