Does the 767 have accelerated trim rate with flaps extended?
My brutally condensed account of the Rostov (737) accident is that pushover WITH trim (and flap relief + speedtape confusion) put the AC nose heavy into dive from which the crew then did not have the right combination of alertness, skills and altitude to recover.
If the push came with a sustained nose-down trim, how long for it to become impossible to overpower by the other pilots pull?