<i>&gt; This is standard in aviation (which is why structural failure airplane crashes of production aircraft are very rare) but something Space-X wasn&#x27;t doing.</i><p>That is going to require sources. Primary responsibility for quality is going to have been the original manufacturer&#x27;s. SpaceX of course will have had to (and I don&#x27;t believe <i>didn&#x27;t</i>) done their own check testing of components, but you write a contract with a supplier to put the risk on them for the timely supply of to-spec and to-tolerance parts.<p>And then you take it to your supplier when they&#x27;ve failed to meet their contracted failure rates, which could also be called &quot;tightening up your supply chain.&quot;<p>I&#x27;m sure there&#x27;ll be more quality involvement on SpaceX&#x27;s side but I&#x27;d be awfully surprised if they weren&#x27;t generally following industry standards.<p>Failures of novel engineering happens sometimes.