Thank-you for your experienced and informed input!  Very interesting. How do you explain the strange metal sounds the eye witnesses heard on the ground? And how do you explain eye witnesses seeing paper/clothing (debris) falling from the plane BEFORE it crashed?  (See my comment posted further below with eye witness links.) Question: Do Black Boxes have sensors to know that the plane is suffering structural failure too??? You should read the Boeing Insider Whistleblowers complaints of using NONconforming parts as well as broken parts to construct the plane.  To me this sounds like more is going wrong than just the nose dive glitch. See the Whistle Blower comments, and links, with FAA documentation about these complaints here: OK, here is a link to what I posted late last night, BE SURE TO READ THE COMMENTS left, with LINKS to Frustrated Boeing Whistleblowers! Wow, Is Boeing Under Attack??? Several Emergencies ALL Happened in the Last 3 Days....all different Problems! https://voat.co/v/GreatAwakening/3089562#submissionTop