Darwin is notorious due to no updates for the FMC for quite a while and generally speaking a tailwind onto the ILS. The Fmc position which derives the descent profile can be 2 or 3 miles out which equates to around 1000 feet to high. One must watch the DME on arrival or else embarassment comes quickly. Keg ( FL195 to 52 DME DN ) I would assume that if the 767 is similar to the 737 52nm equates to around 17500ft on profile around 2000 feet high not 6000?
.............................................I use to fly one now I just make money $$$$$$$