
The only approved list of car seats or child restraints i can find for use on aircraft are from the states: http://faa.custhelp.com/cgi-bin/faa.cfg/php/enduser/std_adp.php?p_faqid=28&p_created=1071174189&p_sid=Uo16jK-h&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9MyZwX3Byb2RzPSZwX2NhdHM9MCZwX3B2PSZwX2N2PSZwX3BhZ2U9MSZwX3NlYXJjaF90ZXh0PUNISUxEIFJFU1RSQUlOVFM*&p_li=&p_topview=1
Ive just had a look on the maxi cosi website they clearly state that all seets meet or exceed the eu saftey regs so i'd be confident they'd be ok.