View Full Version : A320 xxx 1+2 OFF then ON (together or separate?)
nixisfix
29th Mar 2011, 09:34
Any A320 expert to tell me if there is a difference between xxx (i.e FAC) 1 AND 2 OFF then ON vs. 1 OFF/ON then 2 OFF/ON? It seems that on at least the Rudder Trvl Lim Sys fault, the ECAM calls for 1+2 but the FCOM wants it done separately....
TyroPicard
29th Mar 2011, 12:05
I would prefer FAC 1 OFF/ON then FAC 2 OFF/ON... so that you always have a FAC switched on! That is what FCOM 3 asks for .. I have always understood that ECAM follows FCOM 3, have you seen something different, perhaps in a simulator?
nixisfix
30th Mar 2011, 05:15
The ECAM in the sim shows a single line "FAC 1+2 .........OFF then ON"
It does not seem to make a practical difference (at least in this case) but it would be good to know that the ECAM tells us the correct thing here.
shortfuel
30th Mar 2011, 10:27
How old is the sim? Maybe an outdated FWC std.
In some old sims, dual computer resets are displayed on a single line. "Being understood" that one computer should be reset after the other.
But definitely, one computer at a time in that case.
FCOM 3.02.22 has it on two seperate lines.(For rudder trav lim)
FAC 1 ...OFF then ON
FAC 2... OFF then ON