Holding in Company

22nd  November 2010
                                           AVATION PLC
                                   ('AVATION' OR THE 'COMPANY')

                             NOTIFICATION OF SIGNIFICANT SHAREHOLDINGS

The  Board  of Avation Plc has received notification on 19th November 2010 that Credit Suisse
Securities (Europe) Ltd., now has an interest in 1,583,244 shares in the Company and advises that
this interest amounts to 5.549% 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.

WEBSITE                                           www.avation.net

Avation plc

Avation plc