Can a flying team base occupy blocking and make a ranged combat attack/ action?

Thanks,
D

No.

From the rulebook.

Any game effect resulting in two or more characters occupying the same square, or characters, terrain markers, or objects occupying a square of blocking terrain, is prohibited (except for Debris markers,

Your scenario violate one of the five Golden Rules of HeroClix.

A teambase, flying or not, cannot occupy blocking terrain. No character can do that.