Holding in Company

20th November 2008
                                                     AVATION PLC
                                            ('AVATION' OR THE 'COMPANY')

                                      NOTIFICATION OF SUBSTANTIAL SHAREHOLDING

The  Board  of  Avation  Plc  has received notification on 20 November 2008 from Credit Suisse  Securities  (Europe)
Limited  that  it has an unchanged interest in 1,583,244 shares in the Company, this interest is advised  by  Credit
Suisse Securities (Europe) to amount to 6.26% 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

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

MEDIA                                                            020 7562 3350
Maxine Barnes, Nick Rome
Bishopsgate Communications

WEBSITES                                                         www.avation.net

Avation plc