Acquisition of an Industrial Integrated Logistics Support Service (provision of Spare Parts and maintenance service) for the TH/OH 500B helicopter line of the Air Force and for the maintenance and overhaul service of Military Registrations of the TH-500B helicopter line of the Air Force, with the R.T.I. LEONARDO S.p.A. – M.A.G. S.p.A. – Negotiated procedure pursuant to art. 18 of Legislative Decree no. 208/2011.