Ref to Post 21. "1,000s of non-news accidents". The industry-known "Heinrich Pyramid" (Google me) said this; - “in a workplace, for every accident that causes a major injury, there are 29 accidents that cause minor injuries, and 300 accidents that cause no injuries.” "Egypt Air Flight 667" (Google me) is an example. FAA ADs 2012-13-05 and 2014-09-06 followed along with nine others for each Boeing model