Full Flap Selection
"It is unlikely that the pilot would lower the undercarriage at such a low altitude (approaching 400ft), unless he was already aware that he had to stretch the glide slope by keeping the aeroplane in a clean configuration, and there is no evidence of that (yet)."
It is more likely that full flap was selected at around 2 miles and as the drag increased there would/should be a demand for more thrust from the engines. If they then remained frozen at the previous percentage the perception would be loss of power.
Does anyone know: (1) the flap settings and speeds/altitudes in a B777 on finals? (2) if there is a possible common mode failure with FMC thrust demand control?