[Federal Register Volume 66, Number 7 (Wednesday, January 10, 2001)]
[Notices]
[Page 2043]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 01-703]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

[Policy Statement No. ANE-2000-33.94-R0]


Policy for Use of Structural Dynamic Analysis Methods for Blade 
Containment and Rotor Unbalance Tests

AGENCY: Federal Aviation Administration, DOT.

ACTION: Notice of proposed policy statement; request for comments.

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SUMMARY: The Federal Aviation Administration (FAA) announces the 
availability of a proposed policy for evaluating the use of structural 
dynamic analysis methods for blade containment and rotor unbalance 
tests.

DATES: Comments must be received by February 9, 2001.

ADDRESSES: Send all comments on the proposed policy to the individual 
identified under FOR FURTHER INFORMATION CONTACT.

FOR FURTHER INFORMATION CONTACT: Jay Turnberg, FAA, Engine and 
Propeller Standards Staff, ANE-110, 12 New England Executive Park, 
Burlington, MA 01803; e-mail: [email protected]>; telephone: (781) 
238-7116; fax: (781) 238-7199.

SUPPLEMENTARY INFORMATION:

Comments Invited

    The proposed policy statement is available on the Internet at the 
following address: If you do not have access to the Internet, you may 
request a copy by contacting the individual listed under FOR FURTHER 
INFORMATION CONTACT. The FAA invites interested parties to comment on 
the proposed policy. Comments should identify the subject of the 
proposed policy and be submitted to the individual identified under FOR 
FURTHER INFORMATION CONTACT. The FAA will consider all comments 
received by the closing date before issuing the final policy.

Background

    Engine manufacturers are developing and using various types of 
structural dynamic analysis methods to support both engine 
certification activities and aircraft manufacturers' certification 
activities. The FAA has developed this proposed policy to provide 
guidance for evaluating the use of structural dynamic analysis methods 
to show compliance with the requirements of Sec. 33.94 of Title 14 of 
the Code of Federal Regulations, ``Blade containment and rotor 
unbalance tests.'' This proposed policy would specifically address 
paragraph (a) of Sec. 33.94 for engine design and configuration 
changes.

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

    Issued in Burlington, Massachusetts, on January 2, 2001.
David A. Downey,
Assistant Manager, Engine and Propeller Directorate, Aircraft 
Certification Service
[FR Doc. 01-703 Filed 1-9-01; 8:45 am]
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