[Federal Register Volume 63, Number 125 (Tuesday, June 30, 1998)]
[Notices]
[Page 35638]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 98-17365]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
Proposed Advisory Circular 25-XX, Certification of Transport
Airplane Structure
AGENCY: Federal Aviation Administration, DOT.
ACTION: Notice of Availability of Proposed Advisory Circular (AC) 25-XX
and request for comments.
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SUMMARY: This notice announces the availability of and requests
comments on a proposed advisory circular (AC) which provides methods
acceptable to the Administrator for showing compliance with the
provisions of subparts C and D of 14 CFR part 25 regarding the type
certification requirements for transport airplane structure. This
notice is necessary to give all interested persons an opportunity to
present their views on the proposed AC.
DATES: Comments must be received on or before October 28, 1998.
ADDRESSES: Send all comments on proposed AC to: Federal Aviation
Administration, Attention: Jim Haynes, Airframe/Airworthiness Branch,
ANM-115, Transport Airplane Directorate, Aircraft Certification
Service, 1601 Lind Avenue SW, Renton, WA 98055-4056. Comments may be
inspected at the above address between 7:30 a.m. and 4:00 p.m.
weekdays, except Federal holidays.
FOR FURTHER INFORMATION CONTACT:
Katherine Burks, Transport Standards Staff, at the address above,
telephone (206) 227-2114.
SUPPLEMENTARY INFORMATION:
Comments Invited
A copy of the draft AC may be obtained by contacting the person
named above under FOR FURTHER INFORMATION CONTACT. Interested persons
are invited to comment on the proposed AC by submitting such written
data, views, or arguments as they may desire. Commenters should
identify AC 25-XX, and submit comments, in duplicate, to the address
specified above. All communications received on or before the closing
date for comments will be considered by the Transport Standards Staff
before issuing the final AC.
Discussion
This AC contains guidance for the latest amendment of the
regulations and applies to all transport category airplanes for which a
new, amended, or supplemental type certificate is required. This
guidance should be applied to any portion of the airplane structure
that has been modified. In the past, advisory and guidance information
applicable to transport airplane structure has been formally published
as ACs. Advisory circulars have not been developed for all of the
regulatory requirements applicable to transport airplane structure,
however. In many instances, certification of new technology airplanes
resulted in the need to interpret the existing regulations and to apply
new regulations. Issue papers and special conditions were generated to
document the compliance method agreed upon between the applicant and
the FAA. In other instances, applicants, FAA Aircraft Certification
Office (ACO) managers, and foreign regulatory authorities have
requested interpretation of the intent of specific regulations. This
guidance was documented in the form of policy memorandums that were
distributed to all ACOs, letters to applicants and foreign
airworthiness authorities, and issue papers. In many instances, this
information was not organized in a manner that allowed easy access, and
applicants were not aware of revised policy. This AC formalizes
existing policy so that the public and FAA personnel have access to
this information. The methods and procedures described in this AC have
evolved after many years and represents current certification practice.
Issued in Renton, Washington, on June 22, 1998.
Darrell M. Pederson,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service, ANM-100.
[FR Doc. 98-17365 Filed 6-29-98; 8:45 am]
BILLING CODE 4910-13-M
