Chimbu Chuckles, because of the way the ILS was transmitting, the aircraft was getting an onslope signal regardless of where it was. So it was flying some arbitary approach angle which lead to the energy management problems. Presumably the approach gradient was whatever the autopilot happened to give them. I would guess that if the approach had been much steeper they would have caught it quicker. It seems that it was just steep enough to distract them without ringing instant alarm bells.