On the 9th of May AREN took part in a multi-agency mass casualty exercise hosted by Kerry Mountain rescue in Killarney. Other agencies involved included An Garda Síochána, the HSE, The Irish Coast Guard, The Civil Defence, The Search and Rescue Dog Association, Irish Search Dogs, Killarney Water Rescue and others. The AREN station was set up in the on-site co-ordination centre alongside the Inter-Agency Mobile Command Unit.
Net Control was in West Cork with two sub-stations operating in County Waterford. 40m voice and Winlink data was used to get traffic out of the mountains to the outlying substations who forwarded messages to recipients by normal means. Participating members were Eoghan EI5HBB, Martin EI2HIB, Tim EI2KA John EI7IG and Conor EI4JN.