I am not native english speaking, therefor I'll try to explain it again :
- according to our OM, with 1 RA failed, you may not use ANY A/P in Approach Mode.
- if I read the MEL, it seems (technically spoken) I could perform a single channel A/P approach. Autoland or not, CAT I or CAT II, this is not really my question, this is rather company regulations than technical stuff
Now my question is ; are there any other companies that require BOTH RA when using ANY A/P in Approach Mode ? The explanation within our airline is that the A/P uses information from both RA through crosswiring, so whatever A/P you use for Approach Mode (disregard the autoland), it requires both RA to be functional.