Source: https://www.federalregister.gov/documents/2005/08/18/05-16410/policy-statement-on-acceptance-of-a-component-test-method-to-demonstrate
Timestamp: 2017-08-24 07:54:52
Document Index: 749435579

Matched Legal Cases: ['§\u200925', '§\u200925', '§\u200925', '§\u200925', '§\u200925', '§\u200925']

Federal Register :: Policy Statement on Acceptance of a Component Test Method To Demonstrate
Policy Statement on Acceptance of a Component Test Method To Demonstrate
A Notice by the Federal Aviation Administration on 08/18/2005
This final policy was issued by the Transport Airplane Directorate on August 9, 2005.
70 FR 48627
05-16410
https://www.federalregister.gov/d/05-16410 https://www.federalregister.gov/d/05-16410
Start Preamble Start Printed Page 48627
The Federal Aviation Administration (FAA) announces the availability of final policy on a component method for demonstrating that a seat with a replacement bottom cushion complies with § 25.562(c)(2). This policy addresses non-flotation monolithic (single layer) cushions.
Michael T. Thompson, Federal Aviation Administration, Transport Airplane Directorate, Transport Standards Staff, Standardization Branch, ANM-113, 1601 Lind Avenue, SW., Renton, WA 98055-4056; telephone (425) 227-1157; fax (425) 227-1232; e-mail; Michael.t.thompson@faa.gov.
A notice of proposed policy; request for comments, was published in the Federal Register on April 11, 2005 (70 FR 18453). Three commenters responded to the request for comments.
Historically, substantiating changes to the bottom cushion of a seat certificated to § 25.562 that could affect the lumbar load typically required a full-scale 14g downward dynamic test using the actual seat. Industry desired a quicker and less expensive method in lieu of full scale testing. As a result, the FAA funded a research project to develop a component test methodology for demonstrating that a replacement bottom cushion would not produce a higher lumbar load than a certificated bottom cushion for a seat certificated to § 25.562. This research resulted in an acceptable methodology that is documented in DOT/FAA/AR-05/5,I “Development and Validation of an Aircraft Seat Cushion Component Test—Volume I,” dated March 2005. This method provides a simplified means of demonstrating compliance with § 25.562 and will streamline the seat certification process by reducing the costs and time associated with seat certification.
Seat bottom cushion changes must be evaluated to determine that compliance with § 25.562 is maintained when considering both the 14g downward test and the 16g longitudinal test specified in the regulation. This policy addresses demonstrating compliance with the lumbar load criteria of § 25.562(c)(2) that is determined in a 14g downward test.
The final policy memorandum as well as the disposition of public comments received is available on the Internet at the following address: http://www.airweb.faa.gov/​rgl. If you do not have access to the Internet, you can obtain a copy of the final policy memorandum by contacting the person listed under FOR FURTHER INFORMATION CONTACT.
[FR Doc. 05-16410 Filed 8-17-05; 8:45 am]