Originally Posted by
SteinarN
If one segment used AoA1/FCC1, the arcraft landed, power to the FCC was cycled, then upon power up the AoA1/FCC1 would be active, as this FCC is always the active one after a power cycling regarding computing MCAS.
So one sees that there is a 50 percent chance that two consecutive flights will use the same FCC/AoA if the power to the FCC was cycled when on the ground.
SLF.
Two questions:
1: How often is FCC power cycled?
2: If it is important to alternate AoA/FCC, why is this alternation interrupted by power cycling?
It seems to me, if power cycling can interrupt the alternation of sources/computers, then the alternation is not important at all.