

[Federal Register: September 27, 2007 (Volume 72, Number 187)]
[Notices]
[Page 54968]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr27se07-114]

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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 
9_ASW_ROTOR_SAFE@faa.gov. 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 Sharon.Y.Miles@faa.gov.

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]

BILLING CODE 4910-13-P
