Thanks for the reply. The FO didn't press TOGA -- the aircraft automatically went into a quasi-go-around mode after passing the MAP. From the accident report:
It is part of the design of the automatic flight system that if the End of Descent point is reached with the system still active, the automatic flight system concludes that the visual approach has not occurred and, therefore, the missed approach procedure must be applied. The characteristics of the VNAV (VOR) mode are then the computer-based equivalent of the FIR approach procedure.
When the automatic flight system initiates an automatic go-around, the autothrottle commands increased engine thrust to obtain the reference thrust displayed by the EICAS while the flight director gives nose up instructions to maintain the speed displayed on the MCP (or the calculated safe speed). ...
In the case of this accident, the pilot did not follow the flight director’s instructions. As he used manual controls to reestablish a path with a descent rate of 500 feet per minute and pulled the controls back towards the idle position and held them there, the increased thrust command was maintained, as the reference thrust had not been reached and the autothrottle was not deactivated.