Proposed Rule
13 Mar 2025
regulations, aviation, safety, aircraft, aviation safety, incorporation by reference, air transportation, aircraft maintenance, helicopter engines
✈️Proposed AD for Safran Helicopter Engines Raises Compliance Costs
The FAA proposes to adopt a new airworthiness directive (AD) for all Safran Helicopter Engines, S.A. (Safran) Model ARRIUS 2F and ARRIUS 2R engines. This proposed AD was prompted by a manufacturer investigation that revealed certain high-pressure (HP) turbine blades may contain non-compliant porosity rates due to a change in the manufacturing process. This proposed AD would require replacement of affected HP turbine blades, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is proposing this AD to address the unsafe condition on these products.
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