I wonder why they chose to fly the localizer and not the RNAV GPS approach which the A300 is capable of and the crews are trained for. I'm also curious if the standard of setting the missed approach altitude in the window instead of setting the MDA is a player.
I was also puzzled why they would do the LOC instead of the RNAV (GPS).
It's been a long time since I've flown the A306, are you implying that perhaps the missed approach altitude instead of MDA was set prior to the FAF so there was no path guidance and a late descent was initiated when the error was realized?