Touchdown RVR failure on CAT II/III
Hi all,
Asked a tricky question in the sim the other day. Your Planning a CAT II/III approach to an airfield, multiple RVRs normally available but ATC report touchdown RVR is unserviceable. Mid point and stop end reported 125/75.
Is there any regulation/guidance stating whether you can commence/continue the approach? Failed equipment chart says Multiple RVR available one may be inoperative but how can you assess the touchdown RVR and do you need to?