mr. mullenburg, i have to say testimony here today has been quite dismaying. i want to focus on the text exchange that's been publicly reported on between mark forkner, boeing's chief technical pilot for the max, and mr. duff sisson -- mr. got mr. gustofson, who was the to chief technical pilot. i believe that's the case, senator. so this exchange is telling -- is stunning. mr. forkner, shocker alert, mcas is now active down to m 2. it's running rampant in the sim on me. at least that's what vince thinks is happening. gustafson's response, oh, great, that means we have to update the speed trim description in volume two. mr. forkner, so basically, i lied to the regulators unflowingly. gustafson, it wasn't a lie. no one told us that was the case. forkner, i'm lefing off at like 4,000 feet. 230 knots and the plane is trim trimming itself like crazy. i'm like what? gustafson, that's what i saw on sim one, but on approach, i think that's wrong. forkner, granted, i suck at flying, but even this was egregious. >> that exchange describes what happened in lion and ethi