TY JOUR TI Impact of Certification of the MC-21-310 Aircraft with the PD-14 Engine on the Project and Its Economic Significance KW supply chain restructuring KW production rhythm KW interplant cooperation KW maintenance support KW components KW serial production KW economic consequences KW domestic aircraft industry KW MC-21-310 program JO Journal of Applied Research AU Rodionova, Y.I. AU Gorokh, A.O. AU Bahodurov, F.A. PY 2026 IS PB ITBO University