also with this is nadia milleron . became a aviation safety advocate after her daughter samya rose stumo was killed along with 156 others when ethiopian airlines flight 302, a boeing 737 max, crashed in 2019. we welcome you both. ed pierson, analyze what you think happened here and what needs to be done. at this point, all max 9's apparently are either canceled or grounded for further inspection. >> thank you for inviting me. i think right now obviously there is an investigation been conducted and we still don't know a whole lot but certainly, needs to be -- seems to be leaning toward a manufacturing problem. as far as what you get done, as you talked about earlier, this is an virtually a tip of the iceberg cap situation so there has been quite a few serious incidents that have occurred. amy: talked about your warnings as a former senior manager at the boeing 737 factory in washington -- we are speaking to you in seattle. you pushed going leadership to shut down production operations before both crashes in 2019. >> rig