 Boeing irabaye ihagaritse gukora indege za Max 737 Boeing yashyinguye data njyewe ntahari Boeing 737 Max igiye kuguruka, abo yiciye bari gushyingura ababo Beoing yagenye David Calhoun yayikoramwo kuva mu 2009, kuba umuyobozi nshingwabikorwa numukuru wayo. 