[Federal Register Volume 70, Number 225 (Wednesday, November 23, 2005)]
[Proposed Rules]
[Page 70749]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 05-23153]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2005-20836; Directorate Identifier 2005-NM-028-AD]
RIN 2120-AA64


Airworthiness Directives; Boeing Model 727-200 and 727-200F 
Series Airplanes; 737-200, 737-200C, 737-300, and 737-400 Series 
Airplanes; 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-
200F, 747-300, 747-400, 747SR, and 747SP Series Airplanes; 757-200 and 
757-200PF Series Airplanes; and 767-200 and 767-300 Series Airplanes

ACTION: Notice of proposed rulemaking (NPRM); reopening of comment 
period.

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SUMMARY: This document announces a reopening of the comment period for 
the above-referenced NPRM. The NPRM proposed the adoption of a new 
airworthiness directive (AD) for certain Boeing transport category 
airplanes. That NPRM invites comments concerning the proposed 
requirements for replacing any insulation blanket constructed of 
polyethyleneteraphthalate (PET) film, ORCON Orcofilm[reg] AN-26 
(hereafter ``AN-26''), with a new insulation blanket. This reopening of 
the comment period is necessary to provide additional opportunity for 
public comment on the proposed requirements of that NPRM.

DATES: We must receive comments on this proposed AD by February 21, 
2006.

ADDRESSES: Use one of the following addresses to submit comments on 
this proposed AD.
    <bullet> DOT Docket Web site: Go to http://dms.dot.gov and follow 
the instructions for sending your comments electronically.
    <bullet> Government-wide rulemaking Web site: Go to http://www.regulations.gov and follow the instructions for sending your 
comments electronically.
    <bullet> Mail: Docket Management Facility, U.S. Department of 
Transportation, 400 Seventh Street, SW., Nassif Building, room PL-401, 
Washington, DC 20590.
    <bullet> Fax: (202) 493-2251.
    <bullet> Hand Delivery: Room PL-401 on the plaza level of the 
Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.

FOR FURTHER INFORMATION CONTACT: Sue Rosanske, Aerospace Engineer, 
Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle 
Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, 
Washington 98055-4056; telephone (425) 917-6448; fax (425) 917-6590.

SUPPLEMENTARY INFORMATION:

Examining the Docket

    You may examine the AD docket on the Internet at http://dms.dot.gov, or in person at the Docket Management Facility office 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The Docket Management Facility office (telephone (800) 647-
5227) is located on the plaza level of the Nassif Building at the DOT 
street address stated in the ADDRESSES section. Comments will be 
available in the AD docket shortly after the Docket Management System 
receives them.

Discussion

    We proposed to amend 14 CFR part 39 with a notice of proposed 
rulemaking (NPRM) for an AD for certain Boeing Model 727-200 and 727-
200F series airplanes; 737-200, 737-200C, 737-300, and 737-400 series 
airplanes; 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-
200F, 747-300, 747-400, 747SR, and 747SP series airplanes; 757-200 and 
757-200PF series airplanes; and 767-200 and 767-300 series airplanes. 
The NPRM was published in the Federal Register on June 6, 2005 (70 FR 
32738). The NPRM proposed to require replacing any insulation blanket 
constructed of AN-26 with a new insulation blanket. The NPRM action 
invites comments on the overall regulatory, economic, environmental, 
and energy aspects of the proposed AD.

Actions Since NPRM Was Issued

    Since we issued the NPRM, we have received many comments. Most 
commenters express concerns about the unavailability of appropriate 
service information and the limited number of compliance methods. In 
addition, several commenters suggest alternative methods of compliance, 
but do not provide any specific details.
    It is our intent to address the identified unsafe condition in a 
timely manner, with minimum disruption to industry, and maximum 
flexibility in methods of compliance. We encourage interested parties 
to continue to evaluate the proposal and to submit additional comments 
with more specific details concerning issues that the FAA may need to 
evaluate before finalizing its decision of the proposal. We have 
determined that such input may be beneficial before adoption of a final 
rule. As a result, we have decided to reopen the comment period for 90 
days to receive additional comments.
    No part of the regulatory information has been changed; therefore, 
the NPRM is not republished in the Federal Register.

Comments Due Date

    We must receive comments on this AD action by February 21, 2006.

    Issued in Renton, Washington, on November 10, 2005.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 05-23153 Filed 11-22-05; 8:45 am]
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