[QUOTE=jimf671;9757064]It does get you thinking about why that approach was even documented for these aircraft.
I am not familiar with the whole Company Route Guidance information and only accident investigators have access to Crew Briefing CVR-material concerning this flight/approach, but...
If the crew had passed Blackrock at "safe altitude" or avoided it laterally, they most likely could have flown rest of the route with LNAV/FMS coupled; all the way to Blacksod. I am pretty sure that this aircraft is capable to follow the routing (within RFM speed limitations of course)... even the tight left turn north east of Blacksod at BLSDC waypoint. So, I think the approach routing is not a problem for this aircraft!