Bristol Airport (EGGD) has the following NOTAM in place:
INSTRUMENTED RVR RWY 27 STOPEND OUT OF SERVICE
Would aircraft be allowed to continue approaches into Bristol? If so, would the touchdown and mid-point RVR values suffice to decide whether the approach is legal (see Approach Ban below). For example, the listed RVR minima for the RNP Approach runway 27 is 1400m (LNAV) - if the touchdown point and mid point RVR values were above this, could someone legally proceed with the published approach.
The UK AIP describes the Approach Ban as follows.
AD 4.9 Approach Ban - All Aircraft
4.9.3 An aircraft may commence an instrument approach regardless of the reported RVR/Visibility but the approach shall not be continued below 1,000 FT above the aerodrome if the relevant RVR/Visibility for that runway is at the time less than the specified minimum for landing.
4.9.6 The touchdown zone Runway Visual Range (RVR) shall always be controlling.