Damage Tolerance and Fatigue Evaluation of Composite Rotorcraft Structures
other · Rule · Final rule. · Published 2011-12-01 · Effective 2012-01-30 · 76 FR 74655
Document
Document number
2011-30945
Federal Register citation
76 FR 74655
Type
Rule
Action
Final rule.
Category
other
Publication date
2011-12-01
Effective date
2012-01-30
FAA docket
Docket No.: FAA-2009-0660
Abstract
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.