Aviadvigatel begins PD-14 certification work for MS-21

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Russian engine developer Aviadvigatel has initiated the procedure to certify its new PD-14 turbofan for the Irkut MS-21 twinjet.

The Perm-based design organisation says the country's airworthiness authority ARMAK has accepted an application for adapting regulatory requirements to the specifics of the PD-14.

In particular, these address the guidelines governing aeroengine operational safety and emission standards. Aviadvigatel is now working out a package of documents to support its application.

The first phase of certification, which will involve a digitised engine mock-up, is scheduled to start in October. It will be followed by data validation checks on several in-bay engines.

In April, Aviadvigatel completed the assembly of a third PD-14 technology demonstrator and mounted it on the test-bench. It plans to finalise verification of the engine acoustic characteristics by mid-June.