Gary C. Kelly - Southwest Airlines Co.
Management
Well, Mike, maybe I can start and you can correct it. But, well, I think that there was, first of all, surprise that a fan blade would fail, and then also surprised that the inlet cowl would – it would fail in such a way that it would destroy the inlet cowl. So that immediately led to the realization that we needed to increase the inspections. So GE actually does the engine maintenance, not CFM, Mike, I believe. So GE increased their – they changed their inspection technique. They do our overhaul work, Conor, which has to happen before 20,000 cycles. And they changed their inspection technique to the eddy current. And then, Southwest, working with CFM, also implemented the ultrasonic examination. And we were doing that initially on the – just in layperson's terms, we were identifying the older blades in our fleet and examining those first, and then, ultimately, by the end of 2017 decided that we would inspect every single blade in our fleet every time that we touched it for our maintenance step in between the overhaul, and that is every 3,000 cycles. And by the way, that is what you now see the service bulletin by CFM and then the Airworthiness Directive by the FAA has evolved essentially to that. So, well, I beg your pardon. I think it's just the service bulletin by CFM. So I think the short answer is I thought their response was appropriate. It was aggressive and we'll continue to work with the manufacturer to improve the blades so that, in essence, the inspections aren't necessary. But again, you look at what Mike reported earlier and what I did, with all the blades that we've examined, you just don't find any cracks in these blades. I think we found one previous to 2017, and that blade, of course, was discarded. But just very, very few failures, but we'll continue to work with both Boeing and GE to improve those engines. In the meantime, we'll make sure there are no blades on engines that have fatigue in them.