Holding in Company

10 June 2008
                                                     AVATION PLC
                                            ('AVATION' OR THE 'COMPANY')

                                      NOTIFICATION OF SUBSTANTIAL SHAREHOLDING

The  Board of Avation Plc has received notification on 9 June from Credit Suisse Securities (Europe) Limited that it
now has an interest in 1,383,244 shares in the Company, this interest is advised by Credit Suisse Securities (Europe)
 as 7.42% of the issued voting shares of the Company.

                      The directors take responsibility for the contents of this announcement.

                                                     ---ENDS---

ENQUIRES:

AVATION PLC                                                      07783 942 553
Jeff Chatfield, Chairman

STOCKBROKERS
WH Ireland Ltd                                                   020 7220 1670

Cornhill Asset Management Ltd                                    020 7743 6000

ADVISOR                                                          020 7628 1128
Jonathan Willis-Richards
Loeb Aron & Company Ltd.

MEDIA                                                             020 7562 3350
Maxine Barnes, Nick Rome
Bishopsgate Communications

WEBSITES                                                         www.avation.net

Avation plc