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 2018_register executive 2018-11-02 article Rules and Regulations D09002ee1c7e72da2 D09002ee1c7e74166 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 We are adopting a new airworthiness directive (AD) for Bell Model 407 helicopters. This AD requires repetitive inspections of the tail rotor (TR) driveshaft segment assemblies and a torque check of the TR adapter retention nuts. This AD was prompted by a report of an in- flight failure of the TR drive system. The actions of this AD are intended to detect and correct an unsafe condition on these products. 83 FR 23349 https://www.govinfo.gov/app/details/FR-2018-05-21/2018-10491 2018-10491 fr21my18-1 RIN 2120-AA64 4910-13-P Docket No. FAA-2017-0667 Product Identifier 2016-SW-053-AD Amendment 39-19281 AD 2018-10-06 https://www.govinfo.gov/app/details/FR-2018-05-21/2018-10491 https://www.govinfo.gov/content/pkg/FR-2018-05-21/html/2018-10491.htm https://www.govinfo.gov/content/pkg/FR-2018-05-21/pdf/2018-10491.pdf Air Transportation Aircraft Aviation Safety Incorporation by Reference Safety 3 p. 23349 23351 83 FR 23349 Title 14 Part 39 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Bell Helicopter Textron Canada Limited (Bell) Helicopters; Federal Register Vol. 83, Issue RULE 2018-10491 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 2018-06-25 Docket No. FAA-2017-0667 Product Identifier 2016-SW-053-AD Amendment 39-19281 AD 2018-10-06 4910-13-P 2018-10491 Final rule.

We are adopting a new airworthiness directive (AD) for Bell Model 407 helicopters. This AD requires repetitive inspections of the tail rotor (TR) driveshaft segment assemblies and a torque check of the TR adapter retention nuts. This AD was prompted by a report of an in- flight failure of the TR drive system. The actions of this AD are intended to detect and correct an unsafe condition on these products.

This AD is effective June 25, 2018. David Hatfield, Aviation Safety Engineer, Safety Management Section, Rotorcraft Standards Branch, FAA, 10101 Hillwood Pkwy, Fort Worth, TX 76177; telephone (817) 222-5110; email david.hatfield@faa.gov. Air Transportation Aircraft Aviation Safety Incorporation by Reference Safety Airworthiness Directives: Bell Helicopter Textron Canada Limited (Bell) Helicopters , 9-ASW-FTW-AMOC-Requests@faa.gov david.hatfield@faa.gov http://www.archives.gov/federal-register/cfr/ibr-locations.html http://www.bellcustomer.com/files/ http://www.regulations.gov Vol. 83, no. 98 Office of the Federal Register, National Archives and Records Administration 2018-05-21 continuing daily deposited born digital 235 p. Table of Contents: AE 2.7: GS 4.107: AE 2.106: KF70.A2 https://www.govinfo.gov/app/details/FR-2018-05-21 P0b002ee19d997fdb 0097-6326 0042-1219 0364-1406 769-004-00000-9 000582072 f:fr21my18 https://www.govinfo.gov/app/details/FR-2018-05-21 https://www.govinfo.gov/content/pkg/FR-2018-05-21/pdf/FR-2018-05-21.pdf https://www.govinfo.gov/content/pkg/FR-2018-05-21/xml/FR-2018-05-21.xml fdlp 23349 23573 DGPO 2018-11-02 2024-06-01 FR-2018-05-21 machine generated eng FR FR-2018-05-21 83 98