The bottom line is it should have minimal impact on airplanes for revenue service. That's what we're estimating right now,

There are different airplanes that require different levels of service.

Because of it (TCAS), we have had no commercial midair collisions in the U.S. since it was mandated.

What we're looking for is to see if there are any safety issues that the FAA needs to address through some sort of action. Right now, it's too premature to speculate on any cause of action or the cause of the accidents.

It was pretty close. We'll be looking to find out what all happened, and how we can prevent it in the future.

We agreed with the recommendations.