Now that Lisag has entered the debate and I hope she does not mind me using the Lockhart River case as an example, but here goes.
If you flew A. GPWS and B. EGPWS equipped aircaft deliberately or otherwise toward steep rising ground as was the likely course of the Metro, in the landing configuration would you expect to get a PULL UP warning or any of the other modes.
Would you get a different warning if the gear and flaps were up?
My suspicion is you may not get any warning at all untill its too late with the old GPWS as the rise in ground height is rapid but I am not sure. I expect that EGPWS will always give a pull up regardless of the landing config.
Going to watch a shuttle do a dead stick landing... I hope! Look forward to a response.
Blue skies and
J