http://www.ryanair.com/en/notices/gops/091223-FR772-Dublin_Glasgow-GB
FR772 Dublin - Glasgow (Prestwick)
After a normal landing was completed and while taxiing from the runway the aircraft encountered ice and slid just off the runway onto the grass verge. Passengers disembarked normally and were bussed to the terminal. Ryanair engineers are at the aircraft, which appears to have suffered no damage and they are working with Glasgow (Prestwick) to return the aircraft to the stand area so that the runway can be reopened with minimum delay. Ryanair apologises for any disruption suffered by passengers as a result of this incident.