Common use of Sub-Leasing Clause in Contracts

Sub-Leasing. LESSEE WILL NOT, WITHOUT THE PRIOR WRITTEN CONSENT OF LESSOR, SUB-LEASE OR OTHERWISE PART WITH POSSESSION OF THE AIRCRAFT, THE ENGINES OR ANY PART EXCEPT THAT LESSEE MAY PART WITH POSSESSION (A) WITH RESPECT TO THE AIRCRAFT, THE ENGINES OR ANY PART TO THE RELEVANT MANUFACTURERS FOR TESTING OR SIMILAR PURPOSES OR TO THE AGREED MAINTENANCE PERFORMER FOR SERVICE, REPAIR, MAINTENANCE OR OVERHAUL WORK, OR ALTERATIONS, MODIFICATIONS OR ADDITIONS TO THE EXTENT REQUIRED OR PERMITTED BY THIS AGREEMENT, AND (B) WITH RESPECT TO AN ENGINE OR PART, AS EXPRESSLY PERMITTED BY THIS AGREEMENT.