49.—(1) An aircraft with a national certificate of airworthiness must not fly unless it has a valid national airworthiness review certificate.
(2) Subject to articles F1... 50, 56, 57, 58 and 253, a national airworthiness review certificate is valid for one year.
Textual Amendments
F1Word in art. 49(2) omitted (14.12.2017) by virtue of The Air Navigation (Amendment) Order 2017 (S.I. 2017/1112), arts. 1, 14