Article 25 Circumstances where a certificate of release to service is not requiredI1
United Kingdom
A certificate of release to service is not required to be in force for a private aircraft to which article 24 applies that has a maximum total mass authorised of not more than 2730 kg if it flies in the circumstances specified in paragraph (2).
Those circumstances are—
the only repairs or replacements for which a certificate of release to service is not in force are of such a description as may be prescribed;
such repairs or replacements have been carried out personally by the holder of a pilot’s licence granted or rendered valid under this Order who is the owner or operator of the aircraft;
the person carrying out the repairs or replacements keeps in the aircraft log book kept for the aircraft under article 29 a record that identifies the repairs or replacements and signs and dates the entries; and
any equipment or parts used in carrying out the repairs or replacements are of a type approved by the Department, either generally or in relation to a class of aircraft or the particular aircraft.