[Federal Register Volume 72, Number 187 (Thursday, September 27, 2007)]
[Notices]
[Page 54968]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E7-19053]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration


Proposed Airworthiness Standards for Acceptance Under the Special 
Class Rule

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice and request for comments.

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SUMMARY: This notice requests comments on proposed airworthiness 
standards for acceptance of the BA609 Tiltrotor under 14 CFR 21.17(b), 
designation of applicable regulations for special classes of aircraft 
for which airworthiness standards have not been issued.

DATES: Send your comments on or before January 25, 2008.

ADDRESSES: Send all comments to the FAA, Rotorcraft Directorate, 
Aircraft Certification Service, Rotorcraft Standards, Fort Worth, Texas 
76193-0110. You may also send comments electronically to [email protected]. The subject line should read ``Comment to BA609 
Certification Basis.''

FOR FURTHER INFORMATION CONTACT: Sharon Miles, Rotorcraft Standards 
Staff, ASW-111, 2601 Meacham Boulevard, Fort Worth, TX 76137, telephone 
(817) 222-5122, or by e-mail at [email protected].

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite interested parties to submit comments on the proposed 
airworthiness standards to the address specified above. The FAA will 
consider all communications received on or before the closing date. 
These are preliminary proposed airworthiness standards as certification 
evaluation is ongoing. As such, we also plan to issue a subsequent 
Notice, addressing the final proposed standards and any comments 
received in response to this advance Notice prior to issuing the final 
acceptance. Commenting on this advance Notice does not preclude 
commenting on the subsequent Notice.

Background

    The ``special class'' category for aircraft was created 
specifically for non-conventional aircraft for which airworthiness 
standards have not been issued and provides a means for applicants to 
propose airworthiness standards for their particular special class 
aircraft. The FAA procedure establishing appropriate airworthiness 
standards includes reviewing and possibly revising the application 
proposal, publication of the submittal in the Federal Register for 
public review and comment, and addressing the comments. After all 
necessary revisions, the standards are published as approved FAA 
airworthiness standards.
    Accordingly, the applicant for the BA609 Tiltrotor has submitted a 
request to the FAA to include the applicable requirements of those 
airworthiness requirements contained in Title 14 of the Code of Federal 
Regulations, parts 23, 25, and 29 found by the Administrator to be 
appropriate for the BA609 Tiltrotor or such airworthiness criteria as 
the Administrator may find appropriate for this special class aircraft 
that provides an acceptable level of safety equivalent to the level of 
safety provided in the existing airworthiness standards. We have 
considered the applicant's proposal and have determined that those 14 
CFR parts 23, 25, and 29 requirements and certain additional 
airworthiness standards should apply.

How To Obtain Copies

    You may obtain a copy of the proposed airworthiness standards from 
the Internet at: http://www.faa.gov/aircraft/draft_docs/.

    Issued in Fort Worth, Texas, on September 12, 2007.
Mark R. Schilling,
Acting Manager, Rotorcraft Directorate, Aircraft Certification Service.
 [FR Doc. E7-19053 Filed 9-26-07; 8:45 am]
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