Having had just this a couple of years back at a UK airfield and we ended up diverting. We were happy and legal to complete the approach based on our ops manual however the ATC guy wouldn't clear us for an approach based on his ops manual (MATS 2?). Stalemate, burning fuel in the hold waiting for a ground engineer to fix the thing.... only he took too long to get to the airfield.... something about fog on the roads.
