From a licensing perspective you are authorised under Article 62
62 (1) Subject to paragraph (2), this article applies to any licence which authorises the holder
to act as a member of the flight crew of an aircraft and is:
(a) granted under the law of a Contracting State other than the United Kingdom but
which is not a Part-FCL licence;
(2) This article does not apply to such a licence if it authorises the holder to act as a
student pilot only.
(3) Subject to paragraph (6), for the purposes of this Part, a licence to which this article
applies is, unless the CAA gives a direction to the contrary, deemed to be a licence
rendered valid under this Order.
Some may tell you the Order only applies in the UK in which case you should be aware of Art 247
247 (1) Except where the context otherwise requires, the provisions of this Order, in so far
as they apply (whether by express reference or otherwise):
(a) to aircraft registered in the United Kingdom, apply to such aircraft wherever they
may be;
So long as the aircraft is permitted to be there, you can legally fly it.