Damage Tolerance and Fatigue Evaluation of Composite Rotorcraft Structures

This proposal would revise airworthiness standards for type certification requirements of normal and transport category rotorcraft. The amendment would require 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 would

Agency Contact: For technical questions concerning this proposed rule contact Sharon Y. Miles, Regulations and Policy Group, Rotorcraft Directorate, ASW-111, Federal Aviation Administration, 2601 Meacham Boulevard, Fort Worth, Texas 76137-0111; telephone (817) 222-5122; facsimile (817) 222-5961; e-mail sharon.y.miles@faa.gov. For legal questions concerning this proposed rule contact Steve C. Harold, Directorate Counsel, ASW-7G1, Federal Aviation Administration, 2601 Meacham Boulevard, Fort Worth, Texas 76137-0007, telephone (817) 222-5099; facsimile (817) 222-5945, e-mail steve.c.harold@faa.gov.