Airworthiness Directives; Boeing Model 737-600, -700, -700C, -800, and -900 Series Airplanes, 64009-64010 [07-5656]

Download as PDF Federal Register / Vol. 72, No. 219 / Wednesday, November 14, 2007 / Proposed Rules For service information identified in this AD, contact Boeing Commercial Airplanes, Long Beach Division, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Data and Service Management, Dept. C1–L5A (D800–0024). FOR FURTHER INFORMATION CONTACT: Roger Durbin, Aerospace Engineer, Airframe Branch, ANM–120L, FAA, Los Angeles Aircraft Certification Office, 3960 Paramount Boulevard, Lakewood, California 90712–4137; telephone (562) 627–5233; fax (562) 627–5210. SUPPLEMENTARY INFORMATION: We proposed to amend 14 CFR part 39 with a notice of proposed rulemaking (NPRM) for an AD (the ‘‘original NPRM’’) for all McDonnell Douglas Model DC–9–81 (MD–81), DC–9–82 (MD–82), DC–9–83 (MD–83), DC–9–87 (MD–87), and MD–88 airplanes. The original NPRM was published in the Federal Register on September 28, 2007 (72 FR 55111). The original NPRM proposed to require repetitive inspections for cracking of the overwing frames from stations 845 to 905 (MD–87 stations 731 to 791), left and right sides, and corrective actions if necessary. The original NPRM also invites comments on its overall regulatory, economic, environmental, and energy aspects. Events Leading to Extension of Comment Period Since we issued the NPRM, the DOT’s Docket Management System (DMS) was replaced by the Federal Docket Management System (FDMS). FDMS is a government-wide, electronic docket management system, which contains the public dockets and is the method used for submitting comments on the overall regulatory, economic, environmental, and energy aspects of proposed rulemaking actions. However, due to the service disruption caused by the transition from DOT’s DMS to the FDMS, the docket material was not posted on the FDMS until November 1, 2007. Therefore, we have determined that the public was not provided adequate opportunity to submit comments on the NPRM. As a result, we have decided to extend the comment period for this NPRM until December 3, 2007, to receive additional comments. pwalker on PROD1PC71 with PROPOSALS FAA’s Determination We have considered this issue and find it appropriate to extend the comment period to give all interested persons additional time to examine the proposed requirements of the original NPRM and submit comments. After evaluating the circumstances stated previously, we have determined that VerDate Aug<31>2005 16:00 Nov 13, 2007 Jkt 214001 extending the comment period until December 3, 2007, will not compromise the safety of these airplanes. Extension of Comment Period The comment period for Docket No. FAA–2007–29335; Directorate Identifier 2007–NM–045–AD; has been revised. The comment period now closes December 3, 2007. No other part of the regulatory information has been changed; therefore, the original NPRM is not republished in the Federal Register. Issued in Renton, Washington, on November 7, 2007. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 07–5654 Filed 11–9–07; 10:10 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2007–29333; Directorate Identifier 2007–NM–141–AD] RIN 2120–AA64 Airworthiness Directives; Boeing Model 737–600, –700, –700C, –800, and –900 Series Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice of proposed rulemaking (NPRM); extension of comment period. AGENCY: SUMMARY: This document extends the comment period for the abovereferenced NPRM, which proposes the adoption of a new airworthiness directive (AD) that applies to certain Boeing Model 737–600, –700, –700C, –800, and –900 series airplanes. The NRPM would require various repetitive inspections to detect cracks along the chemically milled steps of the fuselage skin or missing or loose fasteners in the area of the preventative modification or repairs, replacement of the time-limited repair with the permanent repair if applicable, and applicable corrective actions if necessary, which would end certain repetitive inspections. The NPRM results from a fatigue test that revealed numerous cracks in the upper skin panel at the chemically milled step above the lap joint. This extension of the comment period is necessary to ensure that all interested persons have ample opportunity to submit any written relevant data, views, or arguments regarding the NPRM. PO 00000 Frm 00007 Fmt 4702 Sfmt 4702 64009 We must receive comments on this NPRM by December 3, 2007. ADDRESSES: You may send comments by any of the following methods: • Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590. • Hand Delivery: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this AD, contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124–2207. FOR FURTHER INFORMATION CONTACT: Wayne Lockett, Aerospace Engineer, Airframe Branch, ANM–120S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98057–3356; telephone (425) 917–6447; fax (425) 917–6590. SUPPLEMENTARY INFORMATION: We proposed to amend 14 CFR part 39 with a notice of proposed rulemaking (NPRM) for an AD (the ‘‘original NPRM’’) for certain Boeing Model 737– 600, –700, –700C, –800, and –900 series airplanes. The original NPRM was published in the Federal Register on September 28, 2007 (72 FR 55118). The original NPRM proposed to require various repetitive inspections to detect cracks along the chemically milled steps of the fuselage skin or missing or loose fasteners in the area of the preventative modification or repairs, replacement of the time-limited repair with the permanent repair if applicable, and applicable corrective actions if necessary, which would end certain repetitive inspections. The original NPRM also invites comments on its overall regulatory, economic, environmental, and energy aspects. DATES: Events Leading to Extension of Comment Period Since we issued the NPRM, the DOT’s Docket Management System (DMS) was replaced by the Federal Docket Management System (FDMS). FDMS is a government-wide, electronic docket management system, which contains the public dockets and is the method used for submitting comments on the overall regulatory, economic, environmental, and energy aspects of proposed rulemaking actions. However, due to the E:\FR\FM\14NOP1.SGM 14NOP1 64010 Federal Register / Vol. 72, No. 219 / Wednesday, November 14, 2007 / Proposed Rules service disruption caused by the transition from DOT’s DMS to the FDMS, the docket material was not posted on the FDMS until November 1, 2007. Therefore, we have determined that the public was not provided adequate opportunity to submit comments on the NPRM. As a result, we have decided to extend the comment period for this NPRM until December 3, 2007, to receive additional comments. FAA’s Determination We have considered this issue and find it appropriate to extend the comment period to give all interested persons additional time to examine the proposed requirements of the original NPRM and submit comments. After evaluating the circumstances stated previously, we have determined that extending the comment period until December 3, 2007, will not compromise the safety of these airplanes. Extension of Comment Period The comment period for Docket No. FAA–2007–29333; Directorate Identifier 2007–NM–141–AD; has been revised. The comment period now closes December 3, 2007. No other part of the regulatory information has been changed; therefore, the original NPRM is not republished in the Federal Register. Issued in Renton, Washington, on November 7, 2007. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 07–5656 Filed 11–9–07; 10:10 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2007–27192; Directorate Identifier 2007–CE–008–AD] RIN 2120–AA64 Airworthiness Directives; Viking Air Limited Model DHC–6 Series Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice of proposed rulemaking (NPRM). pwalker on PROD1PC71 with PROPOSALS AGENCY: SUMMARY: We propose to adopt a new airworthiness directive (AD) for the products listed above that would supersede an existing AD. This proposed AD results from mandatory continuing airworthiness information VerDate Aug<31>2005 16:00 Nov 13, 2007 Jkt 214001 (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: Certain structural components must be replaced by new components at a certain stage of the aircraft’s life to avoid any possibility of fatigue failure. The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI. DATES: We must receive comments on this proposed AD by December 14, 2007. You may send comments by any of the following methods: • Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. • Fax: (202) 493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590. • Hand Delivery: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. ADDRESSES: Examining the AD Docket You may examine the AD docket on the Internet at http:// www.regulations.gov; or in person at the Docket Management Facility, U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590. Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this proposed AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (telephone (800) 647–5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: George Duckett, Aerospace Engineer, FAA, New York Certification Office, 1600 Stewart Avenue, suite 410, Westbury, New York 11590; telephone: (516) 228–7325; fax: (516) 794–5531. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposed AD. Send your comments PO 00000 Frm 00008 Fmt 4702 Sfmt 4702 to an address listed under the section. Include ‘‘Docket No. FAA–2007–27192; Directorate Identifier 2007–CE–008–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD because of those comments. We will post all comments we receive, without change, to http:// regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. ADDRESSES Discussion On February 4, 1983, we issued AD 83–02–02, Amendment 39–4553. That AD required actions intended to address an unsafe condition on the products listed above. Since we issued AD 83–02–02, structural evaluations of the DHC–6 series airplanes have shown that the service life limits and inspection schedules need to be revised. Transport Canada, which is the aviation authority for Canada, has issued AD No. CF–2000–14, dated May 25, 2000, (referred to after this as ‘‘the MCAI’’), to correct an unsafe condition for the specified products. The MCAI refers to the Product Support Manual (PSM) 1–6–11, Revision 5, dated January 11, 2000, which describes the unsafe condition as: Certain structural components must be replaced by new components at a certain stage of the aircraft’s life to avoid any possibility of fatigue failure. The MCAI requires you to inspect, modify, and/or retire affected structural components to maintain the structural integrity of DHC–6 airplanes. You may obtain further information by examining the MCAI in the AD docket. Relevant Service Information Viking Air Limited has issued PSM 1– 6–11, Revision 6, dated March 28, 2007. The actions described in this service information are intended to correct the unsafe condition identified in the MCAI. FAA’s Determination and Requirements of the Proposed AD This product has been approved by the aviation authority of another country, and is approved for operation in the United States. Pursuant to our bilateral agreement with this State of Design Authority, they have notified us E:\FR\FM\14NOP1.SGM 14NOP1

Agencies

[Federal Register Volume 72, Number 219 (Wednesday, November 14, 2007)]
[Proposed Rules]
[Pages 64009-64010]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 07-5656]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2007-29333; Directorate Identifier 2007-NM-141-AD]
RIN 2120-AA64


Airworthiness Directives; Boeing Model 737-600, -700, -700C, -
800, and -900 Series Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

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

-----------------------------------------------------------------------

SUMMARY: This document extends the comment period for the above-
referenced NPRM, which proposes the adoption of a new airworthiness 
directive (AD) that applies to certain Boeing Model 737-600, -700, -
700C, -800, and -900 series airplanes. The NRPM would require various 
repetitive inspections to detect cracks along the chemically milled 
steps of the fuselage skin or missing or loose fasteners in the area of 
the preventative modification or repairs, replacement of the time-
limited repair with the permanent repair if applicable, and applicable 
corrective actions if necessary, which would end certain repetitive 
inspections. The NPRM results from a fatigue test that revealed 
numerous cracks in the upper skin panel at the chemically milled step 
above the lap joint. This extension of the comment period is necessary 
to ensure that all interested persons have ample opportunity to submit 
any written relevant data, views, or arguments regarding the NPRM.

DATES: We must receive comments on this NPRM by December 3, 2007.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Portal: Go to http://
www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue, SE., Washington, DC 20590.
     Hand Delivery: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays.
    For service information identified in this AD, contact Boeing 
Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124-2207.

FOR FURTHER INFORMATION CONTACT: Wayne Lockett, Aerospace Engineer, 
Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office, 
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 
917-6447; fax (425) 917-6590.

SUPPLEMENTARY INFORMATION: We proposed to amend 14 CFR part 39 with a 
notice of proposed rulemaking (NPRM) for an AD (the ``original NPRM'') 
for certain Boeing Model 737-600, -700, -700C, -800, and -900 series 
airplanes. The original NPRM was published in the Federal Register on 
September 28, 2007 (72 FR 55118). The original NPRM proposed to require 
various repetitive inspections to detect cracks along the chemically 
milled steps of the fuselage skin or missing or loose fasteners in the 
area of the preventative modification or repairs, replacement of the 
time-limited repair with the permanent repair if applicable, and 
applicable corrective actions if necessary, which would end certain 
repetitive inspections. The original NPRM also invites comments on its 
overall regulatory, economic, environmental, and energy aspects.

Events Leading to Extension of Comment Period

    Since we issued the NPRM, the DOT's Docket Management System (DMS) 
was replaced by the Federal Docket Management System (FDMS). FDMS is a 
government-wide, electronic docket management system, which contains 
the public dockets and is the method used for submitting comments on 
the overall regulatory, economic, environmental, and energy aspects of 
proposed rulemaking actions. However, due to the

[[Page 64010]]

service disruption caused by the transition from DOT's DMS to the FDMS, 
the docket material was not posted on the FDMS until November 1, 2007. 
Therefore, we have determined that the public was not provided adequate 
opportunity to submit comments on the NPRM. As a result, we have 
decided to extend the comment period for this NPRM until December 3, 
2007, to receive additional comments.

FAA's Determination

    We have considered this issue and find it appropriate to extend the 
comment period to give all interested persons additional time to 
examine the proposed requirements of the original NPRM and submit 
comments. After evaluating the circumstances stated previously, we have 
determined that extending the comment period until December 3, 2007, 
will not compromise the safety of these airplanes.

Extension of Comment Period

    The comment period for Docket No. FAA-2007-29333; Directorate 
Identifier 2007-NM-141-AD; has been revised. The comment period now 
closes December 3, 2007.
    No other part of the regulatory information has been changed; 
therefore, the original NPRM is not republished in the Federal 
Register.

    Issued in Renton, Washington, on November 7, 2007.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 07-5656 Filed 11-9-07; 10:10 am]
BILLING CODE 4910-13-P