and-- >> was there a lag between the discovery and your finding outten a then the f.a.a. finding out? >> congresswoman, the communication timeline on the aoa disagree alert was too long. the communications were not done the way we should have done them and that's one of the reasons we've revised our review board structures. >> so i agree with you that it was too long. i also want to just note the issue of candor, that congressman allred brought up as relates to the communications that boeing had with the regulators and its customers, and thus the flying public. so it was only after the lion air accident, as i understand it, when boeing learned of the defect. it waited three years and 2020 to actually fix the problem? >> so congresswoman, 2017 is when we identified the discrepancy, we immediately convened and whether it was a safety issue or not. we analyzed and determined it was not critical for safety of flight. we notified the f.a.a. the lion air accident. the f.a.a. independently convened their own safety board. >> so before you-- >> you continued to manufacture the ma