Originally Posted by
currawong
...Uncommanded ascent (several thousand feet) followed by an abrupt descent (causing everything to stick to the ceiling)..
Says who? The pitot-static system in that aircraft might have been all messed up (look at the 70 kt discrepancy between left and right side ASI). Meaning the data captured in those graphs, which I point out none of which made much sense when cross referenced across the parameters recorded, is all suspect. Assume those climb/descent/speed rates do not reflect reality.