[Federal Register: April 29, 2002 (Volume 67, Number 82)]
[Notices]
[Page 21012-21013]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr29ap02-121]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
[Proposed Policy Statement Numbers ANE-2001-35.13-R0 and ANE-2001-
35.31-R0]
Policy for Propeller Level Failure Effects; Policy for Bird
Strike, Lightning, and Centrifugal Load Testing for Composite Propeller
Blades
AGENCY: Federal Aviation Administration, DOT.
ACTION: Notice of proposed policy statements; request for comments.
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SUMMARY: The Federal Aviation Administration (FAA) announces the
availability of proposed policy for propeller-level failure effects and
proposed policy for bird strike, lightning, and centrifugal load
testing for composite propeller blades.
DATES: Comments must be received by June 14, 2002.
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: jay.turnberg@faa.gov; telephone: (781)
238-7116; fax: (781) 238-7199.
SUPPLEMENTARY INFORMATION:
Comments Invited
The proposed policy statements are available on the Internet at the
following address: http://www.faa.gov/certification/aircraft/
enginedraftpolicyby.htm. If you do not have access to the Internet, you
may request a copy of the proposed policies by contacting the
individual listed under FOR FURTHER INFORMATION CONTACT. The FAA
invites interested parties to comment on the proposed policies.
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 policies.
Background
Many new propeller certification programs include composite blades
and spinners and electronic controls. Part 35 of Title 14 of the Code
of Federal Regulations (14 CFR part 35) does not have explicit safety
standards for the substantiation of propellers with composite blades
and spinners for bird strike, lightning strike, and centrifugal loads,
nor does it address electronic controls and safety assessment. The
safety standards for these design features and analyses have been
incorporated into the propeller certification basis by issuing special
conditions. Until rulemaking is finalized to incorporate these
standards into part 35, individual propeller certifications that
contain these novel or unusual design features must continue to be
addressed with special conditions.
Proposed Policy Statement Number ANE-2001-35.13-R0 would provide
guidance for the development of those special conditions with regard to
propeller level failure effects. Proposed Policy Statement Number ANE-
2001-
[[Page 21013]]
35.31-R0 would provide guidance for structurally substantiating
propellers with composite blades and spinners for bird strike,
lightning strike, and centrifugal loads. The proposed policies would
not establish new requirements.
Authority: 49 U.S.C. 106(g), 40113, 44701-44702, 44704.
Issued in Burlington, Massachusetts, on April 17, 2002.
Francis Favara,
Assistant Manager, Engine and Propeller Directorate, Aircraft
Certification Service.
[FR Doc. 02-10497 Filed 4-26-02; 8:45 am]
BILLING CODE 4910-13-P