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Magnesium Alloys in Aircraft Seats - Developments in Magnesium Alloy Flammability Testing

Aircraft SEAT Committee
  • Aerospace Standard
  • AIR6160A
  • Current
Published 2020-01-09 by SAE International in United States
This document provides informational background, rationale and a technical case to allow consideration of the removal of the magnesium alloy restriction in aircraft seat construction as contained in AS8049B. The foundation of this argument is flammability characterization work performed by the FAA at the William J. Hughes Technical Center (FAATC), Fire Safety Branch in Atlantic City, New Jersey, USA. The rationale and detailed testing results are presented along with flammability reports that have concluded that the use of specific types of magnesium alloys in aircraft seat construction does not increase the hazard level potential in the passenger cabin in a post-crash fire scenario. Further, the FAA has developed a lab scale test method, reference DOT/FAA/TC-13/52, to be used as a certification test, or method of compliance (MOC) to allow acceptability of the use of magnesium in the governing TSO-C127 and TSO-C39C. Other flammability studies are also cited in the AIR document to substantiate the FAA findings.
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Performance Standards for Oblique Facing Passenger Seats in Transport Aircraft

Aircraft SEAT Committee
  • Aerospace Standard
  • ARP6316A
  • Current
Published 2019-11-19 by SAE International in United States

This SAE Aerospace Recommended Practice (ARP) documents a common understanding of terms, compliance issues, and occupant injury criteria to facilitate the design and certification of oblique facing passenger seat installations specific to Part 25 aircraft.

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Magnesium Alloys in Aircraft Seats - Engineering Design and Fabrication Recommended Practices

Aircraft SEAT Committee
  • Aerospace Standard
  • ARP6256
  • Current
Published 2019-10-31 by SAE International in United States
This document is a guide to the application of magnesium alloys to aircraft interior components including but not limited to aircraft seats. It provides background information on magnesium, its alloys and readily available forms such as extrusions and plate. It also contains guidelines for “enabling technologies” for the application of magnesium to engineering solutions including: machining, joining, forming, cutting, surface treatment, flammability issues, and designing from aluminum to magnesium.
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Performance Standard for Child Restraint Systems in Transport Category Airplanes

Aircraft SEAT Committee
  • Aerospace Standard
  • AS5276/1
  • Current
Published 2019-10-31 by SAE International in United States
This SAE Aerospace Standard (AS) defines minimum performance standards and related qualification criteria for add-on child restraint systems (CRS) which provide protection for small children in passenger seats of transport category airplanes. The AS is not intended to provide design criteria that could be met only by an aircraft-specific CRS. The goal of this standard is to achieve child-occupant protection by specifying a dynamic test method and evaluation criteria for the performance of CRS under emergency landing conditions.
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Gaining Approval for Seats with Integrated Electronics in Accordance with AC21-49 Option 7b

Aircraft SEAT Committee
  • Aerospace Standard
  • AIR6448A
  • Current
Published 2019-08-07 by SAE International in United States

The primary purpose of this document is to provide roles, responsibilities and accountabilities to meet AC 21-49 Section 7.b ‘Type Certification using TSO-approved seat with electronic components defined in TSO design’. This document may be applied to all applicable seat TSOs (C39(), C127()…etc). The approval for the integration of the electronics will fall, in part or in full, under the type design authority of the Seat Installer rather than the Seat Supplier shipping the integrated seat. The defined responsibilities, areas of authority and accountability of each party, as well as necessary communication protocols, must ensure configuration management, design control and quality control. These definitions, controls and protocols are agreed (thru normal commerical agreements and binding contracts) and adhered to by all parties ensuring all parts in the supply chain remain approved (e.g. certified and conformed).

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Impact Characteristics of Seat Back Mounted IFE Monitors - Basis for ARP6330

Aircraft SEAT Committee
  • Aerospace Standard
  • AIR6908
  • Current
Published 2018-09-13 by SAE International in United States
This document provides background information, rationale, and data (both physical testing and computer simulations) used in defining the component test methods and similarity criteria described in SAE Aerospace Recommended Practice (ARP) 6330. ARP6330 defines multiple test methods uses to assess the effect of seat back mounted IFE monitor changes on blunt trauma to the head and post-impact sharp edge generation. The data generated is based on seat and IFE components installed on type A-T (transport airplane) certified aircraft. While not within the scope of ARP6330, generated test data for the possible future development of surrogate target evaluation methods is also included.
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Methods to Evaluate Impact Characteristics of Seat Back Mounted IFE Monitors

Aircraft SEAT Committee
  • Aerospace Standard
  • ARP6330
  • Current
Published 2018-09-13 by SAE International in United States
This SAE Aerospace Recommended Practice (ARP) defines means to assess the effect of changes to seat back mounted IFE monitors on blunt trauma to the head and post-impact sharp edges. The assessment methods described may be used for evaluation of changes to seat back monitor delethalization (blunt trauma and post-test sharp edges) and head injury criterion (HIC) attributes (refer to ARP6448 Appendix A Items 3 and 6, respectively). Application is focused on type A-T (transport airplane) certified seat installations.
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Aircraft Seat Design Guidance and Clarifications

Aircraft SEAT Committee
  • Aerospace Standard
  • ARP5526E
  • Current
Published 2018-08-23 by SAE International in United States
This SAE Aerospace Recommended Practice (ARP) documents a common understanding of terms, compliance issues, and design criteria to facilitate certification of seat installations specific to Part 25 aircraft. This ARP provides general guidance for seats to be installed in Part 23 aircraft and Parts 27 and 29 rotorcraft and does not specify specific designs or design methods for such certification.
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Modification or Replacement of Components on Dynamically Certified Seat Systems

Aircraft SEAT Committee
  • Aerospace Standard
  • ARP5497A
  • Current
Published 2018-02-06 by SAE International in United States

This document outlines the engineering evaluation appropriate for modifying or replacing components of a previously certified seat when the certification process is based on qualification to the requirements of AS8049, which includes dynamic testing. The engineering evaluation presented in this document may be used to determine if a modification (including replacement of a component) is a minor change with respect to meeting the dynamic testing requirements described in AS8049.

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Performance Standards for Oblique Facing Passenger Seats in Transport Aircraft

Aircraft SEAT Committee
  • Aerospace Standard
  • AS6316
  • Current
Published 2017-06-28 by SAE International in United States
This SAE Aerospace Standard (AS) documents a common understanding of terms, compliance issues, and occupant injury criteria to facilitate the design and certification of oblique facing passenger seat installations specific to Part 25 aircraft. The applicability of the criteria listed in this current release is limited to seats with an occupant facing direction greater than 18° and no greater than 45° relative to the aircraft longitudinal axis. Seats installed at angles greater than 30° relative to the aircraft longitudinal axis must have an energy absorbing rest or shoulder harness and must satisfy the criteria listed in Table 2. Later revisions are intended to provide criteria for other facing directions. Performance criteria for forward and aft facing seats are provided in AS8049 and for side facing seats in AS8049/1. This document contains the same content as superseded ARP6316 with additional information included to align this Aerospace Standard with AS8049/1 regarding the use of the femur angular rotation sensor. Although the issues and criteria presented in this document are common with oblique facing seats installed in Part…
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