AAR has diversity, heft to beat back OEM pushes.
Operations will cease by end of 2017, says parent company StandardAero.
Previous tentative agreement for five years was rejected in December 2016.
Delta's stellar operations numbers setting the table for cargo-division success.
Leases will give airline extended exposure to Airbus narrowbodies.
Deal was announced on Monday (Sept. 4.).
U.S. carrier will have access to European MRO's spares pool.
Maintenance provider will launch new apprenticeship program this fall.
U.S. MRO provider will handle line services on the 777.