[Federal Register Volume 74, Number 169 (Wednesday, September 2, 2009)]
[Notices]
[Pages 45515-45516]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E9-21066]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration


Advisory Circular 33-8, Guidance for Parts Manufacturer Approval 
of Turbine Engine and Auxiliary Power Unit Parts Under Test and 
Computation

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of issuance of advisory circular.

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SUMMARY: This notice announces the issuance of Advisory Circular (AC) 
33-8, Guidance for Parts Manufacturer Approval of Turbine Engine and 
Auxiliary Power Unit Parts under Test and Computation. This AC provides 
guidance for developing substantiation data to support the design 
approval of critical and complex turbine engine and auxiliary power 
unit (APU) parts produced under parts manufacturer approval. This 
guidance is for the comparative test and analysis method used to show 
compliance to the airworthiness requirements under test and 
computation, per S21.303 of Title 14 of the Code of Federal Regulations 
(14 CFR). This method supports showing the engine or APU still complies 
with 14 CFR part 33 and Technical Standard Order (TSO) C77.

DATES: The Engine and Propeller Directorate issued AC 33-8 on August 
19, 2009.

FOR FURTHER INFORMATION CONTACT: The Federal Aviation Administration, 
Attn: Karen M. Grant, Engine and Propeller Standards Staff, ANE-111, 12 
New England Executive Park, Burlington, MA 01803-5299; telephone: (781) 
238-7119; fax: (781) 238-7199; e-mail: [email protected].
    We have filed in the docket all substantive comments received, and 
a report summarizing them. If you wish to review the docket in person, 
you may go to the above address between 9 a.m. and 5 p.m., Monday 
through Friday, except Federal holidays. If you wish to contact the 
above individual directly, you can use the above telephone number or e-
mail address provided.
    How to Obtain Copies: A paper copy of AC 33-8 may be obtained by 
writing to the U.S. Department of

[[Page 45516]]

Transportation, Subsequent Distribution Office, DOT Warehouse, SVC 
121.23, Ardmore East Business Center, 3341Q 75th Ave., 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.faa.gov.regulations_policies (then click on 
``Advisory Circulars'').

    Authority:  49 U.S.C. 106(g), 40113, 44701-44702, 44704.

    Issued in Burlington, Massachusetts, on August 19, 2009.
Peter A. White,
Acting Manager, Engine and Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. E9-21066 Filed 9-1-09; 8:45 am]
BILLING CODE 4910-13-M