[f5fstop]

New information. The way John phrased it is it could be a brain fart that could become a stroke. He is thinking there computer program, for some reason, could have become confused by certain inputs, and one of those inputs may have failed temporarily, and could fail totally later.
He is the first person who I have talked to made a statement about the exhaust. The engine parameters are looking for a specific back pressure; usually a small amount of change makes no difference. But, at this altitude, and you possibly doing something normal but strange to a sensor (such as momentarily lifting off the accelerator, then flooring it, or just the opposite),the computer reacted with a reduced power mode. Resetting it by turning it off/on made it reboot, similar to a Windows Brain Fart.
Just another opinion. But he wants to know the final conclusion if there is one.
First guy is still waiting for any information he can get. He is also very curious.