Common use of Installation of Engines and Parts Clause in Contracts

Installation of Engines and Parts. Lessee will:- (a) ensure that, except as permitted by this Agreement, no engine or part is installed on the Aircraft unless:- (i) in the case of an engine, it is an engine of the same model as, or an improved or advanced version of the Engine it replaces, which is in the same or better operating condition and has the same or greater value and utility as the replaced Engine; (ii) in the case of a part, it is in as good operating condition, has substantially similar hours available until the next scheduled checks, inspections, overhauls and shop visits, is of the same or a more advanced make and model and is of the same interchangeable modification status as the replaced Part; (iii) in each case, it has become and remains the property of Owner free from Security Interests and on installation on the Aircraft will without further act be subject to the Head Lease, the Sub Lease and this Agreement; and (iv) in each case, Lessee has full details as to its source and maintenance records;