federal_register: 2011-30945

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document_number title type abstract publication_date pub_year pub_month html_url pdf_url agency_names agency_ids excerpts regulation_id_numbers
2011-30945 Damage Tolerance and Fatigue Evaluation of Composite Rotorcraft Structures Rule This rule revises airworthiness standards for type certification requirements of normal and transport category rotorcraft. The amendment requires evaluation of fatigue and residual static strength of composite rotorcraft structures using a damage tolerance evaluation, or a fatigue evaluation if the applicant establishes that a damage tolerance evaluation is impractical. The amendment addresses advances in composite structures technology and provides internationally harmonized standards. 2011-12-01 2011 12 https://www.federalregister.gov/documents/2011/12/01/2011-30945/damage-tolerance-and-fatigue-evaluation-of-composite-rotorcraft-structures https://www.govinfo.gov/content/pkg/FR-2011-12-01/pdf/2011-30945.pdf Transportation Department; Federal Aviation Administration 492,159 This rule revises airworthiness standards for type certification requirements of normal and transport category rotorcraft. The amendment requires evaluation of fatigue and residual static strength of composite rotorcraft structures using a damage... 2120-AJ52

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