Picky Perkins
Re the question you asked in your 09 Feb post:
"I think I see something projecting forward of the leading edge of the left wing in the flipped image. What do other people see?"
"Anybody have any relevant information or opinions?"
You may find the answer
here at this link (as supported by various emerging facts and the Pate-Cornell/Fishbeck 1994 Paper)
I do NOT think that it was anything to do with a "not quite overhead shot" or a banked attitude. In fact the damage discussed in the link may have propagated ALONG the LH leading edge by the time this shot was taken (60 secs prior to break-up)
TheShadow