From their investigation, <a href="http:&#x2F;&#x2F;www.spacex.com&#x2F;news&#x2F;2015&#x2F;07&#x2F;20&#x2F;crs-7-investigation-update" rel="nofollow">http:&#x2F;&#x2F;www.spacex.com&#x2F;news&#x2F;2015&#x2F;07&#x2F;20&#x2F;crs-7-investigation-up...</a>:<p><i>The strut that we believe failed was designed and material certified to handle 10,000 lbs of force, but failed at 2,000 lbs, a five-fold difference.</i>