United States Government Publishing Office publisher pbl distributor dst United States National Archives and Records Administration Office of the Federal Register author aut Government Organization text government publication eng FR Regulatory Information 2011_register executive 2011-12-02 article Rules and Regulations D09002ee1c7fea9e3 D09002ee1c7feaac9 United States Department of Transportation originator org United States Government Agency or Subagency United States Federal Aviation Administration originator org United States Government Agency or Subagency This rule amends the airworthiness standards for fatigue tolerance evaluation (FTE) of transport category rotorcraft metallic structures. This revises the FTE safety requirements to address advances in structural fatigue substantiation technology for metallic structures. This provides an increased level of safety by avoiding or reducing the likelihood of the catastrophic fatigue failure of a metallic structure. These increased safety requirements will help ensure that should serious accidental damage occur during manufacturing or within the operational life of the rotorcraft, the remaining structure could withstand, without failure, any fatigue loads that are likely to occur, until the damage is detected or the part is replaced. Besides improving the safety standards for FTE of all principal structural elements (PSEs), the amendment is harmonized with international standards. 76 FR 75435 https://www.govinfo.gov/app/details/FR-2011-12-02/2011-30941 2011-30941 fr02de11-2 RIN 2120-AJ51 4910-13-P Docket No. FAA-2009-0413 Amdt. No. 29-55 https://www.govinfo.gov/app/details/FR-2011-12-02/2011-30941 https://www.govinfo.gov/content/pkg/FR-2011-12-02/html/2011-30941.htm https://www.govinfo.gov/content/pkg/FR-2011-12-02/pdf/2011-30941.pdf Aircraft Aviation Safety 8 p. 75435 75442 76 FR 75435 Title 14 Part 29 14 CFR Part 29 RIN 2120-AJ51 Fatigue Tolerance Evaluation of Metallic Structures; Federal Register Vol. 76, Issue RULE 2011-30941 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 2012-01-31 Docket No. FAA-2009-0413 Amdt. No. 29-55 4910-13-P 2011-30941 Final rule.

This rule amends the airworthiness standards for fatigue tolerance evaluation (FTE) of transport category rotorcraft metallic structures. This revises the FTE safety requirements to address advances in structural fatigue substantiation technology for metallic structures. This provides an increased level of safety by avoiding or reducing the likelihood of the catastrophic fatigue failure of a metallic structure. These increased safety requirements will help ensure that should serious accidental damage occur during manufacturing or within the operational life of the rotorcraft, the remaining structure could withstand, without failure, any fatigue loads that are likely to occur, until the damage is detected or the part is replaced. Besides improving the safety standards for FTE of all principal structural elements (PSEs), the amendment is harmonized with international standards.

Effective January 31, 2012. For technical questions concerning this action, contact Sharon Y. Miles, Regulations and Policy Group, Rotorcraft Directorate, ASW-111, Federal Aviation Administration, 2601 Meacham Blvd., Fort Worth, Texas 76137-0111; telephone number (817) 222-5122; facsimile (817) 222-5961; email sharon.y.miles@faa.gov. Aircraft Aviation Safety Fatigue Tolerance Evaluation of Metallic Structures , sharon.y.miles@faa.gov steve.c.harold@faa.gov http://www.faa.gov/regulations_policies/or http://www.faa.gov/regulations_policies/rulemaking/sbre_act/ http://www.gpoaccess.gov/fr/index.html http://www.regulations.gov http://www.sba.gov/size Vol. 76, no. 232 Office of the Federal Register, National Archives and Records Administration 2011-12-02 continuing daily deposited born digital 353 p. Table of Contents: AE 2.7: GS 4.107: AE 2.106: KF70.A2 https://www.govinfo.gov/app/details/FR-2011-12-02 P0b002ee181235f2a 0097-6326 0042-1219 0364-1406 769-004-00000-9 000582072 f:fr02de11 https://www.govinfo.gov/app/details/FR-2011-12-02 https://www.govinfo.gov/content/pkg/FR-2011-12-02/pdf/FR-2011-12-02.pdf https://www.govinfo.gov/content/pkg/FR-2011-12-02/xml/FR-2011-12-02.xml fdlp 75427 75769 DGPO 2011-12-02 2024-06-03 FR-2011-12-02 machine generated eng FR FR-2011-12-02 76 232