Id try to steer the plane to a place where there is no people if possible. If my only option was to steer the plane towards less people then I wouldn’t steer the plane at all.
Intentional inaction is an intentional action.
Some states have a traffic concept called "last clear chance" which places the fault for an accident on the person who had the last clear chance to avoid the accident, regardless of whose action created the circumstance of the accident. If you just allow the accident to happen when you could have avoided it, or mitigated it, you're considered at fault.
This is why earlier in the thread I pointed to the ethical standards of deontology--which Christianity is. The question is always: "What is my duty?"
Deontology often gets reduced to a rule-based concept, which is what some people here are trying to adhere to, but ultimately, it's not simple rule-following but understanding the basic interest and intent of the rule-making authority.
If I believe that preserving life is an interest of my rule-making authority in a situation that no rule seems to apply, then I must directly apply his interest. If in a situation in which different interests seem to be in conflict, then which is the higher interest?
So my authority detests lying but also values saving lives...which is the higher interest? Well, we already have biblical stories of people who lied to save lives and were commended by the rule-making authority for it. That's the solution of the Anne Frank dilemma, already given: Saving a life is more important than avoiding a lie.
There might be circumstances in which duty would demand saving one life in preference to saving five lives. Absent such particular factors, however, if life is the interest of my rule-making authority, then saving more life is preferable to saving less life, and if the choice has been placed in my hands, then I'm expected to do my duty. We have biblical direction (a rule already made) that inaction when we've been given the power of action is also punishable.