[Federal Register Volume 68, Number 127 (Wednesday, July 2, 2003)]
[Notices]
[Page 39616]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 03-16641]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration


Advisory Circular (AC) 20-146, Methodology for Dynamic Seat 
Certification by Analysis for Use in Parts 23, 25, 27, and 29 Airplanes 
and Rotorcraft

AGENCY: Federal Aviation Administration, DOT.

ACTION: Notice of issuance of advisory circular.

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SUMMARY: This notice announces the issuance of Advisory Circular (AC) 
20-146, Methodology for Dynamic Seat Certification by Analysis for Use 
in parts 23, 25, 27, and 29 Airplanes and Rotorcraft. The AC sets forth 
an acceptable means, but not the only means, for demonstrating 
compliance to certain sections of the regulations and the technical 
standard order associated with those regulations. The AC provides 
guidance on how to validate the computer model and under what 
conditions the model may be used in support of certification or TSO 
approval/authorization.

DATES: Advisory Circular 20-146 was issued by the Acting Manager of the 
Aircraft Engineering Division on May 19, 2003.
    How To Obtain Copies: A paper copy of AC 20-146 may be obtained by 
writing to the U.S. Department of Transportation, Subsequent 
Distribution Office, DOT Warehouse, SVC-121.23, Ardmore East Business 
Center, 3341Q 75th Avenue, Landover, MD 20785, telephone 301-322-5377, 
or by faxing your request to the warehouse at 301-386-5394. The AC will 
also be available on the Internet at http://www.airweb.faa.gov/AC.

    Issued in Kansas City, Missouri, on June 17, 2003.
James E. Jackson,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 03-16641 Filed 7-1-03; 8:45 am]
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