Another Interceptor question

Are you talking about attacking the land airbase?

I don't think you would ignore the Fighter in that case. It's still there even if it can't use abilities.

Hmm. Let's see...

AIRFIELD STRIKE: Once per game, you can deploy a Fighter to your opponent's land airbase during the Air Mission phase. That fighter can make an Antiair attack against one enemy Aircraft deployed at the airbase or rearming this turn.

Normally you cannot deploy to the LAB of your opponent but the SA allows this to happen. If you go by the logic that the LAB is not a sector, then your fighter is also not in a sector, and if it's not in a sector then there is no check for aircraft that can be made. The same logic that would eliminate the fighter from the sector would also eliminate your fighter from the non-existent sector. Then, if you go the other way and say that sector = LAB for the purposes of the SA, then you would do the check for the fighter and its presence would cancel out Interceptor.

Sorry i respect your knowledge and understanding of the game but i disagree with your logic;

Abilities trump rules; The Airfield Strike SA does not say go to sector just an opponents land air base
      A land air base not being in a sector needs special abilities to be attacked.
I'm not saying the enemy fighter is not their; its just not in a sector the attacking plane by way of that SA can attack anything at the land base and by all means available.
      The definition of a Sector and why it is in the Interceptor SA; i think makes clear to all where combat and effects should take place
unless a Special Ability says otherwise.
     I believe the rules support this; but In cases like this i can see a need for discussion and ideas, but certainly not always agreement.

How I see it;  Planes on a Land Base can be there for only one reason, rearming even if missioned their.
  What is a rearming air unit; unusable. 
A Land Base by rule is not a sector
  Since by rule only an SA can be used to attack a Land Base any wording pertaining to normal sector interaction does not exist 
unless by SA.
   So by the Airfield Attack SA a Fighter can attack the Land Base; but all planes on the Air Base can not be protected by
normal rules of engagement unless an SA exist to allowed it otherwise.
   To me if a Land Airbase was considered a Sector; why couldn't you normally attack or defend it or how would you stop
out of turn placement of air units.
   I understand your premiss if a fighter is in the same SPACE as an interceptor fighter how is interceptor usable;
BUT even the wording in the Interceptor SA says same sector; so i think there was intent by not making a Land Base a Sector.
   It was meant to be a special area under conditions controlled only by Special Abilities.

I'm under the impression that the land airbase is not part of the map itself: it is far away enough that aircraft need to take a whole turn off in order to rearm. Thus, a plane in any sector of the map cannot intercept because it's not adjacent to the enemy fighter. If the attacking fighter is that far away from the battle, a defending fighter wouldn't be able to intercept because of the sheer distance of the flight. It doesn't make sense both in terms of game rules and in reality (which isn't exactly as important, but is worth noting)

That's not really the question, though. The question would be if you used Airfield Strike to put your fighter there, and your opponent leaves (for whatever reason) a fighter and a bomber at the land airbase. Then you have 3 aircraft to potentially interact with each other at the LAB. The only one that could attack is your fighter, but would the opponent's fighter be able to negate Interceptor on your plane if you have that ability?