Article 17 Certificate of airworthiness ceasing to be in force and issue of airworthiness directivesI1
United Kingdom
Subject to paragraph (3), a certificate of airworthiness or a certificate of validation issued for an aircraft registered in the Isle of Man ceases to be in force if—
the aircraft or a part of it or such of its equipment as is necessary for its airworthiness has been overhauled, repaired, replaced, modified or maintained;
maintenance or an inspection of the aircraft or of equipment necessary for its airworthiness is required by a maintenance programme approved by the Department for the aircraft under article 22;
maintenance of the aircraft or of equipment necessary for its airworthiness has been made mandatory by a directive issued by the Department;
an inspection for the purpose of ascertaining whether the aircraft remains airworthy has been made mandatory by a directive issued by the Department; or
any modification of the aircraft or of any equipment is necessary for its airworthiness has been made mandatory by a directive issued by the Department for the purpose of ensuring that the aircraft remains airworthy.
A certificate of airworthiness or a certificate of validation that has ceased to be in force under paragraph (1) becomes valid again on the issue of a certificate of release to service under this Order relating to the overhaul, repair, replacement, modification, maintenance or inspection.
A certificate of airworthiness that would not be in force by reason of paragraph (1) remains in force if the aircraft is flying in the circumstances specified in article 24(3) or 25.
In this article, a certificate of validation has the same meaning as in article 16(7).