Translation note: This article was translated with the assistance of AI.
U.S.-based engine component supplier Chromalloy has received an additional Parts Manufacturer Approval (PMA) from the Federal Aviation Administration (FAA) for alternative turbine blades used in the V2500-A5 engine. The latest approval covers a first-stage high-pressure turbine blade for the engine’s Pre-Select configuration.
New Approval Expands Existing Portfolio of Certified Turbine Blades
The latest PMA expands Chromalloy’s existing product portfolio. According to the company, it can now supply alternative blades for both high-pressure turbine stages in the Pre-Select and Select configurations. The other approvals had already been granted. The V2500-A5 powers aircraft in the Airbus A320ceo family.
PMA approvals allow independent manufacturers to produce and supply specific replacement parts in accordance with approved technical specifications. This gives airlines and maintenance, repair and overhaul (MRO) providers additional sourcing options beyond the original engine manufacturers’ spare parts portfolios.
According to Chromalloy, the turbine blades are manufactured entirely within its U.S. production network. This includes alloy production, single-crystal casting, precision machining and the application of thermal barrier coatings.
High-pressure turbine blades place particularly demanding requirements on materials and manufacturing processes. These components must withstand extreme temperatures and mechanical stresses, making them among the most technically demanding parts of a jet engine.
The latest approval specifically covers the first high-pressure turbine stage of the Pre-Select configuration. It follows an approval for the Select configuration announced in September 2026.