Good Evening Captain Bloggs:
Although retired the S.O.P. is to check that the data base is current ie 01-12-2012 to 31-12-2012. If not select the correct data base if roll over has happened.
In addition in the pre-descent check protocol not only calls for the approach briefing but confirmation that the data matches the approach plate, notams etc
I had a chuckle that previous poster brought up the old saw about metric visibility versus Imperial measurement. Short answer the approach plate visibility limits has to match what is on the ATIS reported visibility etc.
As I stated earlier wait for the investigation to be complete and someone will attach the official finding in a post as opposed to conjecture but I digress