I sincerely hope I'm not a passenger down the back if you proceed with an approach without the published radio aids working.
Those days are gone!!!!
We are being cleared to fly an entire RNAV GPS approach in the A330/A340, with NO ground based stations, no DME, NO VOR, NO ILS etc...
All altimeters must be absolutely verified correct QNH (as there is no ground fix for comparison) and for temperature (in case of extreme cold) and the APPROACH is armed and flown to minimum coupled, and so far it will work fine.
RAIM needs to be verified. (satellites available at the start of the approach).
If the approach at destination is RNAV only, then alternate needs to be ground based stations, in case the approach cannot be flown, you wouldn't want to divert somewhere where there are no satellites available (time or position of the satellites) either.
I believe the goal is to have all approaches RNAV by 2016 if I remember.
SBAS and GBAS (satellite or ground based augment system ) will allow an autoland without ILS station, as far as I understand it, but the aircraft needs to have this equipment to read this.