2.  They identify the widget that broke or malfunctioned, then locate the person most closely connected with the technical failure: the engineer who miscalculated an analysis, the operator who missed signals or pulled the wrong switches, the supervisor who failed to listen, the manager who made bad decision Common mistakes in analysing accidents

3.  The Technical Engineering Authority should be funded directly from NASA Headquarters, and should have no connection to or responsibility for schedule or program cost. [2003: 193]  NASA ʼ s safety and mission assurance organization was not sufficiently independent; [179]

4.  NASA does not have a truly independent safety function with the authority to halt the progress of a critical mission element. [180]