I saw a TV show once about Japan Airlines flight 123, in which the aft pressure bulkhead ruptured, disabling hydraulics and ripping off the vertical stabiliser. So the flight crashed after some time of flying with up-and-down oscillation.

Since then, I've also heard of two flights in which the aircraft lost control of flight control surfaces, but pilots guided their crippled plane into a landing using engine throttles only:

* [United Airlines flight 232](http://en.wikipedia.org/wiki/United_Airlines_Flight_232)
* [2003 Baghdad DHL attempted shootdown incident](http://en.wikipedia.org/wiki/2003_Baghdad_DHL_attempted_shootdown_incident), in which a cargo plane in Iraq was hit on a wing by a missile

In principle, could such a method have been used in Japan Airlines flight 123?

In principle, would it be possible to control such a plane by use of cooperating passengers moving around in the cabin, e.g. by instruction of a pilot, to shift the weight balance of the aircraft?