Originally Posted by
AirbusLover
Considering RVR 75m and rwy in sight as stated,for sure you are below 200ft RA...
Not necessarily...
RVR is horizontal visibility at/near ground level. In the case if ice fog or other shallow but thick fog, you may have visibility above Alert Height, and lose it near or on the ground.
In the 744, a go-around is mandatory in Cat III conditions if the LAND 3 reverts to LAND 2 (likely with single A/P failure) or NO AUTOLAND (likely with multiple A/P failure or multiple other failures) above AH. Assuming no other overriding factors, if the visibility on rollout will be less than Cat II RVR minimum, a Go-Around is your best option.