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 2009_register executive 2009-05-22 article Rules and Regulations D09002ee1c8069418 D09002ee1c80694ec 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) to supersede AD 2008-10-12, which applies to certain Air Tractor, Inc. AT- 400, AT-500, AT-600, and AT-800 series airplanes. AD 2008-10-12 currently requires repetitively inspecting the engine mounts for cracks, repairing any crack damage found, and installing gussets as a terminating action for the repetitive inspections. This AD results from a report of a Model AT-602 airplane with a crack completely through the gusset that was installed as required in AD 2008-10-12. Consequently, this AD would require you to continue repetitively inspecting the engine mounts for cracks for all previously affected Air Tractor, Inc. AT-400, AT-500, AT-600, and AT-800 series airplanes with or without gussets installed, and repairing any crack damage found. We are issuing this AD to detect and correct cracks in the engine mount, which could result in failure of the engine mount. This failure could lead to separation of the engine from the airplane. 74 FR 23938 https://www.govinfo.gov/app/details/FR-2009-05-22/E9-11902 E9-11902 FR22MY09-2 RIN 2120-AA64 4910-13-P Docket No. FAA-2009-0473 Directorate Identifier 2009-CE-027-AD Amendment 39-15915 AD 2009-11-05 https://www.govinfo.gov/app/details/FR-2009-05-22/E9-11902 https://www.govinfo.gov/content/pkg/FR-2009-05-22/html/E9-11902.htm https://www.govinfo.gov/content/pkg/FR-2009-05-22/pdf/E9-11902.pdf Air Transportation Aircraft Aviation Safety Incorporation by Reference Safety 4 p. 23938 23941 74 FR 23938 Title 14 Part 39 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Air Tractor, Inc. Models AT-400, AT-400A, AT-402, AT-402A, AT-402B, AT-502, AT-502A, AT-502B, AT-503A, AT-602, AT-802, and AT-802A Airplanes; Federal Register Vol. 74, Issue RULE E9-11902 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 2009-06-01 Docket No. FAA-2009-0473 Directorate Identifier 2009-CE-027-AD Amendment 39-15915 AD 2009-11-05 4910-13-P E9-11902 Final rule; request for comments.

We are adopting a new airworthiness directive (AD) to supersede AD 2008-10-12, which applies to certain Air Tractor, Inc. AT- 400, AT-500, AT-600, and AT-800 series airplanes. AD 2008-10-12 currently requires repetitively inspecting the engine mounts for cracks, repairing any crack damage found, and installing gussets as a terminating action for the repetitive inspections. This AD results from a report of a Model AT-602 airplane with a crack completely through the gusset that was installed as required in AD 2008-10-12. Consequently, this AD would require you to continue repetitively inspecting the engine mounts for cracks for all previously affected Air Tractor, Inc. AT-400, AT-500, AT-600, and AT-800 series airplanes with or without gussets installed, and repairing any crack damage found. We are issuing this AD to detect and correct cracks in the engine mount, which could result in failure of the engine mount. This failure could lead to separation of the engine from the airplane.

This AD becomes effective on June 1, 2009. Andy McAnaul, Aerospace Engineer, FAA, San Antonio MIDO-43, 10100 Reunion Pl., Ste. 650, San Antonio, Texas 78216, telephone: (210) 308-3365, fax: (210) 308-3370; e-mail: andrew.mcanaul@faa.gov. Air Transportation Aircraft Aviation Safety Incorporation by Reference Safety Airworthiness Directives: Air Tractor, Inc. Models AT400, AT400A, AT402, et al. Airplanes , andrew.mcanaul@faa.gov http://www.airtractor.com http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html http://www.regulations.gov Vol. 74, no. 98 Office of the Federal Register, National Archives and Records Administration 2009-05-22 continuing daily deposited born digital 769 p. Table of Contents: AE 2.7: GS 4.107: AE 2.106: KF70.A2 https://www.govinfo.gov/app/details/FR-2009-05-22 P0b002ee18001c3b0 0097-6326 0042-1219 0364-1406 769-004-00000-9 000582072 f:FR22MY09 https://www.govinfo.gov/app/details/FR-2009-05-22 https://www.govinfo.gov/content/pkg/FR-2009-05-22/pdf/FR-2009-05-22.pdf https://www.govinfo.gov/content/pkg/FR-2009-05-22/xml/FR-2009-05-22.xml fdlp 23937 24694 DGPO 2009-05-22 2024-06-04 FR-2009-05-22 machine generated eng FR FR-2009-05-22 74 98