Hi Locked Door,
Re: DH/A I have pulled the following diagram from ICAO annexe 6 JAR OPS 1 subpart E. I am certainly not trying to evaluate what happened in Cork, but was just taking the opportunity to highlight a common misconception amongst pilots that, 'AT' DH/A you look up and see what you can see and then say LAND or GO-AROUND. The decision must be made BY DH. See below;
http://www.skybrary.aero/images/101010-1.jpg