Article 90 Preservation of documents, etc.I1
United Kingdom
A person who is required by this Order to preserve a document or record by reason of being the operator of an aircraft is in this article called “the first operator”.
Subject to paragraph (3), if the first operator ceases to be the operator of an aircraft that operator must continue to preserve the document or record until paragraph (4) has been complied with.
If the first operator dies the duty to preserve the document or record falls on the first operator’s personal representative.
If another person becomes the operator of the aircraft, the first operator or the first operator’s personal representative must deliver to that other person on demand—
the certificates of maintenance review and release to service;
the log books;
the mass schedule; and
any record made by a flight data recorder and preserved in accordance with article 87,
that is in force or required to be preserved for the aircraft.
If an engine or variable pitch propeller is removed from an aircraft and installed in another aircraft operated by another person, the first operator of the aircraft or the first operator’s personal representative must deliver to that other person on demand the log book relating to the engine or propeller.
It is the duty of the other person referred to in paragraphs (4) and (5) to deal with the documents or records delivered under those provisions as if the person were the first operator.