[Federal Register Volume 71, Number 54 (Tuesday, March 21, 2006)]
[Notices]
[Page 14281]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E6-4023]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration


Proposed Advisory Circular 25.981-2A, Fuel Tank Flammability

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of Availability of Proposed Advisory Circular (AC) 
25.981-2A, Fuel Tank Flammability and request for comments; extension 
of comment period.

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SUMMARY: This action extends the comment period for a notice of 
availability of proposed AC 25.981-2A, Fuel Tank Flammability, and 
request for comments published on November 28, 2005. In this Notice, 
the FAA announced the availability of and requested comments on a 
proposed AC which sets forth an acceptable means, but not the only 
means, of demonstrating compliance with the provisions of the 
airworthiness standards in a Notice of Proposed Rulemaking published on 
November 23, 2005. The comment period for this Notice closes on the 
same day as the comment period for the NPRM (March 23, 2006). The 
extension of the Notice's comment period is a result of an extension of 
the NPRM's comment period.

DATES: Send your comments on or before May 8, 2006.

ADDRESSES: Send your comments on the proposed AC to the individual 
named under the FOR FURTHER INFORMATION CONTACT section of this 
extension. Comments may be inspected at that address between 7:30 a.m. 
and 4 p.m., except Federal Holidays.

FOR FURTHER INFORMATION CONTACT: Michael E. Dostert, FAA Propulsion/
Mechanical Systems Branch, ANM-112, Transport Airplane Directorate, 
Aircraft Certification Service, 1601 Lind Avenue, SW., Renton, 
Washington 98055-4056; telephone (425) 227-2132, facsimile (425-227-
1320); e-mail: [email protected].

SUPPLEMENTARY INFORMATION:

Comments Invited

    The FAA continues to invite interested persons to comment on the 
proposed AC by sending written comments, data, or views about it. 
Commenters should identify AC 25.981-2A and submit comments, in 
duplicate, to the address specified above. The Transport Standards 
Staff will consider all communications received on or before the 
closing date for comments before issuing the final AC. The proposed AC 
can be found and downloaded from the Internet at http://www.airweb.faa.gov/rgl under ``Draft Advisory Circulars.'' A paper copy 
of the proposed AC may be obtained by contacting the person named above 
under the caption FOR FURTHER INFORMATION CONTACT.

Background

    On November 18, 2005, we issued a Notice of availability of 
proposed AC 25.981-2A, Fuel Tank Flammability, and request for comments 
(70 FR 71365; November 28, 2005). This Notice announced the 
availability of and requested comments on a proposed AC which sets 
forth an acceptable means, but not the only means, of demonstrating 
compliance with the provisions of the airworthiness standards in that 
Notice of Proposed Rulemaking (NPRM) entitled ``Reduction of Fuel Tank 
Flammability in Transport Category Airplanes'' (70 FR 70922, November 
23, 2005). The comment periods for the NPRM and the proposed AC both 
end on March 23, 2006. The FAA received requests from a number of 
entities to extend the comment period on the NPRM to allow public 
comment on new information that has recently been placed in the public 
docket. Based on these requests and our belief that additional requests 
for extensions will be filed shortly, we determined it would be 
appropriate to extend the comment period on the NPRM by 45 days. Since 
the proposed AC is associated with the NPRM, we want their comment 
period closing dates to be the same. Therefore, we need to extend the 
comment period for the proposed AC by 45 days to be consistent. Absent 
unusual circumstances, we do not anticipate any further extension of 
the comment period for the proposed AC.
    The extension of the comment period for the NPRM is being published 
concurrently with this extension.

Extension of Comment Period

    The FAA finds that an extension of the comment period for the 
Notice of availability of proposed AC 25.981-2A, Fuel Tank 
Flammability, and request for comments is consistent with the public 
interest, and that good cause exists for taking this action.
    Accordingly, the comment period for the Notice of availability of 
proposed AC 25.981-2A, Fuel Tank Flammability, and request for comments 
is extended until May 8, 2006.

    Issued in Washington, DC on March 14, 2006.
John J. Hickey,
Director, Aircraft Certification Service.
[FR Doc. E6-4023 Filed 3-20-06; 8:45 am]
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