Maydayفصل 9 جایگزینی تصویرشماره قسمت2Alarming Silence (Cockpit Chaos) Northwest Airlines Flight 255OverviewOn 16 August 1987, Northwest Airlines Flight 255 crashed shortly after take off, killing 156 people. The crew did not follow the taxi checklist prior to take off.Air dateSeptember 15, 2010Runtime (min)45