"Just a little additional info.... The three A/P bars light up at APP selection but there is still only ONE A/P operating as evidenced by the PFD FMA of CMD."
I think I'll have to look up the legal definition of "armed" here. I understood that the illumination of the 3 CMD switchlights indicated that all three A/P's were "armed" (and that the arm solenoids in the A/P servos were powered, with the servo position synchronised to the flight control position). How this is related to the FD/CMD/LAND 3 annunciation during the period between when the APP button was pushed and 1500', I don't know. (Hey, is anyone from Boeing/Collins listening in on this conversation??? Help!) :-)
"Apologies, if that's "teaching granny to suck eggs" etc."
Never too old for reminders, CJ... In fact, the older I get the more I need ;-)
Cheers.
Q.