"At approximately 600ft and two miles from touch down, the Autothrottle demanded an increase in thrust from the two engines but the engines did not respond.
"Following further demands for increased thrust from the Autothrottle, and subsequently the flight crew moving the throttle levers, the engines similarly failed to respond. The aircraft speed reduced and the aircraft descended onto the grass short of the paved runway surface."
Just flew on one of these from Hawaii to Chicago. They're my favorite planes... hope this isn't a widespread issue.