Looks like it was EI-RJX, one of their Avro RJ85s. All ended safely, apparently. Unfortunately, the Dublin feed appears to have been down since the 22/12/08, so no chance of hearing it. Anyone have any info on if/when the feed will be back?
http://www.liveatc.net/forums/feed-outagestatus-reports/eidw-off-air-t5386/next week
