Airworthiness Standards; Engine Bird Ingestion

This final rule amends the aircraft turbine engine type certification standards to better address the threat flocking birds present to turbine engine aircraft. These changes will also harmonize FAA and European Aviation Safety Agency (EASA) bird ingestion standards for aircraft turbine engines type certificated by the United States and the EASA countries, and simplify airworthiness approvals for import and export. The changes are necessary to establish uniform international standards and provide an acceptable level of safety for aircraft turbine engines with respect to the current large flocking bird threat.