Originally Posted by Microburst2002
...(except if initiated below 100 ft RA in which case you have to arm manually)...
Where does this come from? We operate MSN from 300+ to 4000+ and I have not spotted that one in the FCOM/OEBs..
RA-alive:
The last lines should confirm what the other posters said (FCOM 1.22.30 p56a):
Having said that, you might want to have a look at your current effective OEBs. As mentioned by MB2002, some older A/C do not transition to G/A phase (OEB144).