70.—(1) A person required by this Order to preserve any document or record by reason of his being the operator of an aircraft shall, if he ceases to be the operator of the aircraft, subject to paragraph (2) continue to preserve the document or record as if he had not ceased to be the operator, and in the event of his death the duty to preserve the document or record shall fall upon his personal representative.
(2) (a) If another person becomes the operator of the aircraft, the first-mentioned operator or his personal representative shall deliver to that person upon demand the certificates of maintenance review and release to service, the log books and the weight schedule and any record made by a flight data recorder and preserved in accordance with article 45(2) of this Order which are in force or required to be preserved in respect of that aircraft.
(b)If an engine or variable pitch propeller is removed from the aircraft and installed in another aircraft operated by another person the first-mentioned operator or his personal representative shall deliver to that person upon demand the log book relating to that engine or propeller.
(c)If any person in respect of whom a record has been kept by the first mentioned operator in accordance with article 63(4) of this Order becomes a member of the flight crew of a public transport aircraft registered in the United Kingdom and operated by another person the first-mentioned operator or his personal representative shall deliver those records to that other person upon demand.
(d)It shall be the duty of the other person referred to in sub-paragraphs (a), (b) and (c) to deal with the document or record delivered to him as if he were the first-mentioned operator.