annual report 2009 - Aer Lingus

74 Financial Statements Aer Lingus Group Plc – Annual Report 2009Notes to the Consolidated Financial Statements [continued]15 Intangible assetsComputer software2009 2008€’000 €’000CostAt 1 January 44,554 44,049Additions 3,889 5,619Disposals – (15,415)Transfer from property, plant and equipment – 10,301At 31 December 48,443 44,554Aggregate amortisationAt 1 January 37,445 40,252Charge for the year 5,385 2,307Disposals – (15,415)Transfer from property, plant and equipment – 10,301At 31 December 42,830 37,445Net book valueAt 1 January 7,109 3,797At 31 December 5,643 7,109The amortisation expense of €5.4m (2008: €2.3m) has been charged in ‘depreciation and amortisation’ in the income statement.16 Group undertakingsAer Lingus Group plc is a company incorporated under the Irish Companies Acts, 1963 to 2009. Its head office is at Dublin Airport,Co Dublin, Ireland. It is the ultimate parent company in the Aer Lingus group.The principal group companies are Aer Lingus Limited, Aer Lingus Beachey Limited, Aer Lingus (Ireland) Limited and Dirnan InsuranceCompany Limited, all of which are wholly owned. Aer Lingus Limited is incorporated in Ireland and is the principal operating company.Aer Lingus (Ireland) Limited was established during the year and employs former employees of SR Technics who provide maintenanceservices on the Aer Lingus fleet. Aer Lingus Beachey Limited is incorporated in the Isle of Man and its principal activity is aircraftfinancing. Dirnan Insurance Company Limited is incorporated in Bermuda and its principal activity is handling and resolving claimson expired insurance policies as it is currently in “run-off”. Full details of all group companies will be filed with the Company’s annualreturn, which is available from the Companies Registration Office, Parnell House, 14 Parnell Square, Dublin 1, Ireland. In addition, theGroup trades through a number of overseas branches. ALG Trustees Limited was established in 2007 to manage the Group’s Long-TermIncentive Plan (LTIP). The Group consolidates ALG Trustees Limited in the group accounts.During 2008, three group companies (Seres Limited, Duneast Limited and Crodley Limited) were put into liquidation and dissolved.All of these companies were dormant.Aer Lingus Group plc has guaranteed the liabilities of its Irish subsidiary undertakings for the purposes of Section 17 of the Companies(Amendment) Act, 1986.