Guys, there are no netEA or EUK rules, there are only GW rules. Now there are some open questions within those rules that may or not have been ruled on by other parties, but the rules are constant.
The Air assault screening is an extrapolation of the screening from behind FAQ here -
Quote:
2.1.12 Scout
Q: It’s possible to place a Scout unit
just behind another friendly unit, so
that the Scouts 10cm ZOC covers the
friendly unit too. If this happens, can I
charge the non-Scout unit? The rules
say I can’t enter a ZOC unless I’m
charging the unit it belongs to.
A: You are, of course, allowed to charge
the unit! If an explanation is needed, then
let’s say that the rule for moving into base
contact with the enemy takes precedence
over the rule for not entering another
unit’s ZOC. However, any player who has
attempted to use this tactic to stop a
charge should hang their head in shame!
This indicates that entering the targets ZOC TAKES PRECEDENCE. So if you have no plan to enter the traget ZOC you can't do it (my reading of course, ymmv).
So in your example you could land 5cm away and put 2 stands into base to base with the SC. And the rest would have to stay on board the AC.