Approval of a major modification to a type certificate was issued by the Federal Air Transport Agency to Yakovlev

Photo: United Aircraft Corporation

The Federal Air Transport Agency (Rosaviatsiya) has issued an approval of a major modification to the MC-21 type certificate to Yakovlev (included in Rostec's United Aircraft Corporation) to provide import-substitution of composite materials in structural elements of fin and tailplane torsion boxes. Thus, Russian science and industry have fully completed a large package of work on introducing domestic composite materials into the MC-21 airplane structure. 

“The approval to use domestic composites in the MC-21 fin and tailplane marks completion of an important import-substitution phase — the aircraft has fully got rid of foreign materials and reliability of domestic counterparts has been verified in the course of testing. Extensive cooperation efforts of research centers and production facilities, including Rostec’s UAC companies, were involved in this work. I would like to express my gratitude to all colleagues, who contributed to creating a whole composite-based aircraft manufacturing subsector,” said Vadim Badekha, General Director of UAC. 

Completion of this work is one of the certification stages of the fully import-substituted MC-21. Work on certification of the aircraft with new domestically-built equipment is currently in progress together with the design bureau, Yakovlev.

Earlier in 2022, Rosaviatsiya approved changes in the MC-21 design, including replacement of the engine with the PD-14 made by Rostec’s United Engine Corporation and the use of wings made of domestic composite materials.