Not sure if the incident aircraft was a 359 or 35K. 359 slows down like a 744, 35K is more slippery, like an A330. Commencement of speed reduction from 250 kts to be CONF 2/180/3000 at 10 nm starts around 20nm for a - 900, 23nm for a - 1000. Loose, ballpark figures.