Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440), CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600-2D15 (Regional Jet Series 705), and CL-600-2D24 (Regional Jet Series 900) Airplanes, 5767-5768 [E8-1695]

Download as PDF Federal Register / Vol. 73, No. 21 / Thursday, January 31, 2008 / Proposed Rules by providing appropriate guidance should the rulemaking not resolve itself in time. But the two are not mutually exclusive and thus, I support a combination of options 1 and 2— granting the petition and clarifying in the notice the agency’s regulatory interpretation of the existing regulations should they be required to be used prior to completion of the rulemaking. Also, this paper should be reviewed for a release determination and, at a minimum, the voting record and SRM from this paper should be made publicly available five business days after the letter is sent to the petitioner, as is current practice for release of information regarding decisions on rulemaking petitions. Gregory B. Jaczko. [FR Doc. E8–1751 Filed 1–30–08; 8:45 am] BILLING CODE 7590–01–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket Nos. FAA–2007–0413 and FAA– 2007–0414; Directorate Identifiers 2007– NM–341–AD and 2007–NM–340–AD] RIN 2120–AA64 Airworthiness Directives; Bombardier Model CL–600–2B19 (Regional Jet Series 100 & 440), CL–600–2C10 (Regional Jet Series 700, 701 & 702), CL–600–2D15 (Regional Jet Series 705), and CL–600–2D24 (Regional Jet Series 900) Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice of proposed rulemaking (NPRM); correction. sroberts on PROD1PC70 with PROPOSALS AGENCY: SUMMARY: The FAA is correcting typographical errors in two NPRMs that were published in the Federal Register on January 4, 2008 (73 FR 833, and 73 FR 830). The errors resulted in incorrect docket numbers. One NPRM applies to all Bombardier Model CL–600–2B19 (Regional Jet Series 100 & 440) airplanes. The other NPRM applies to all Bombardier Model CL–600–2C10 (Regional Jet Series 700, 701 & 702), CL– 600–2D15 (Regional Jet Series 705), and CL–600–2D24 (Regional Jet Series 900) airplanes. Both actions proposed to require revising the Airworthiness Limitations Section of the Instructions for Continued Airworthiness to incorporate new limitations for fuel tank systems. ADDRESSES: You may examine the AD docket on the Internet at https:// www.regulations.gov; or in person at the Docket Management Facility between 9 VerDate Aug<31>2005 17:23 Jan 30, 2008 Jkt 214001 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the regulatory evaluation, any comments received, and other information. The address for the Docket Office (telephone 800–647–5527) is the Document 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. FOR FURTHER INFORMATION CONTACT: Rocco Viselli, Aerospace Engineer, Airframe and Propulsion Branch, ANE– 171, FAA, New York Aircraft Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New York 11590; telephone (516) 228–7331; fax (516) 794–5531. SUPPLEMENTARY INFORMATION: On December 26, 2007, the FAA issued a notice of proposed rulemaking (NPRM) for all Bombardier Model CL–600–2B19 (Regional Jet Series 100 & 440) airplanes. That NPRM, Directorate Identifier 2007–NM–341–AD, was published in the Federal Register on January 4, 2008 (73 FR 833). On December 21, 2007, the FAA issued an NPRM for all Bombardier Model CL–600–2C10 (Regional Jet Series 700, 701 & 702), CL–600–2D15 (Regional Jet Series 705), and CL–600– 2D24 (Regional Jet Series 900) airplanes. That NPRM, Directorate Identifier 2007– NM–340–AD, was published in the Federal Register on January 4, 2008 (73 FR 830). Both actions proposed to require revising the Airworthiness Limitations Section of the Instructions for Continued Airworthiness to incorporate new limitations for fuel tank systems. As published, those NPRMs specify incorrect docket numbers throughout the preamble and the regulatory text. The docket number associated with NPRM Directorate Identifier 2007–NM– 341–AD was FAA–2008–0413, and the docket number associated with NPRM Directorate Identifier 2007–NM–340–AD was FAA–2008–0414. The docket numbers were assigned by the Federal Document Management System. We have been informed that incorrect docket numbers were assigned. The correct docket number for NPRM Directorate Identifier 2007–NM–341–AD is FAA–2007–0413. The correct docket number for NPRM Directorate Identifier 2007–NM–340–AD is FAA–2007–0414. Any commenter who submitted comments to an original, incorrect docket number should check Docket No. FAA–2007–0413 or FAA–2007–0414 on www.regulations.gov to determine whether the comments have been PO 00000 Frm 00006 Fmt 4702 Sfmt 4702 5767 received and filed in the appropriate docket. If not, or if it is not possible to determine whether comments have been posted to the correct docket, the comments should be resubmitted using the correct docket number. No other part of the preamble or regulatory information has been changed; therefore, the NPRMs are not republished in the Federal Register. The last date for submitting comments to the NPRMs remains February 4, 2008. Correction In the Federal Register of January 4, 2008, on page 833, in the second column, the headings section of NPRM Docket No. FAA–2008–0413, Directorate Identifier 2007–NM–341–AD, is corrected to read as follows: ‘‘[Docket No. FAA–2007–0413; Directorate Identifier 2007–NM– 341–AD]’’ In the Federal Register of January 4, 2008, on page 833, in the third column, the SUPPLEMENTARY INFORMATION section of NPRM Docket No. FAA–2008–0413, Directorate Identifier 2007–NM–341– AD, is corrected to read as follows: ‘‘* * * Include ‘‘Docket No. FAA– 2007–0413; Directorate Identifier 2007– NM–341–AD’’ at the beginning of your comments. * * *’’ In the Federal Register of January 4, 2008, on page 830, in the second column, the headings section of NPRM Docket No. FAA–2008–0414, Directorate Identifier 2007–NM–340–AD, is corrected to read as follows: ‘‘[Docket No. FAA–2007–0414; Directorate Identifier 2007–NM–340– AD]’’ In the Federal Register of January 4, 2008, on page 831, in the first column, the SUPPLEMENTARY INFORMATION section of NPRM Docket No. FAA–2008–0414, Directorate Identifier 2007–NM–340– AD, is corrected to read as follows: ‘‘* * * Include ‘‘Docket No. FAA– 2007–0414; Directorate Identifier 2007– NM–340–AD’’ at the beginning of your comments. * * *’’ § 39.13 [Corrected] In the Federal Register of January 4, 2008, on page 835, in the first column, paragraph 2. of PART 39— AIRWORTHINESS DIRECTIVES of NPRM Docket No. FAA–2008–0413, Directorate Identifier 2007–NM–341–AD is corrected to read as follows: * * * * * Bombardier, Inc. (Formerly Canadair): Docket No. FAA–2007–0413; Directorate Identifier 2007–NM–341–AD. * * * * * In the Federal Register of January 4, 2008, on page 832, in the second E:\FR\FM\31JAP1.SGM 31JAP1 5768 Federal Register / Vol. 73, No. 21 / Thursday, January 31, 2008 / Proposed Rules column, paragraph 2. of PART 39— AIRWORTHINESS DIRECTIVES of NPRM Docket No. FAA–2008–0414, Directorate Identifier 2007–NM–340–AD is corrected to read as follows: * * * * * Bombardier, Inc. (Formerly Canadair): Docket No. FAA–2007–0414; Directorate Identifier 2007–NM–340–AD. * * * * * Issued in Renton, Washington, on January 24, 2008. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E8–1695 Filed 1–30–08; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2008–0107; Directorate Identifier 2007–NM–087–AD] RIN 2120–AA64 Airworthiness Directives; Boeing Model 747 Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). sroberts on PROD1PC70 with PROPOSALS AGENCY: SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain Boeing Model 747 airplanes. This proposed AD would require inspections for scribe lines in affected lap and butt splices, wing-to-body fairing locations, and external repair and cutout reinforcement areas; and related investigative and corrective actions if necessary. This proposed AD results from reports of scribe lines found at lap joints and butt joints, around external doublers and antennas, and at locations where external decals had been cut. We are proposing this AD to detect and correct scribe lines, which can develop into fatigue cracks in the skin and cause sudden decompression of the airplane. DATES: We must receive comments on this proposed AD by March 17, 2008. ADDRESSES: You may send comments by any of the following methods: • Federal eRulemaking Portal: Go to https://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. VerDate Aug<31>2005 17:23 Jan 30, 2008 Jkt 214001 • 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. Examining the AD Docket You may examine the AD docket on the Internet at https:// www.regulations.gov; or in person at the 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: 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: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposed AD. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2008–0107; Directorate Identifier 2007–NM–087–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 https:// www.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. Discussion We have received a report indicating that scribe lines have been found by 8 operators on 15 Model 747 airplanes. Scribe lines were found at lap joints and butt joints, around external doublers and antennas, and at locations where external decals had been cut. Many of the scribe lines appear to have been PO 00000 Frm 00007 Fmt 4702 Sfmt 4702 made when sealant was removed as part of preparation of the airplane for repainting. Although fatigue cracks can develop in the skin at scribe line locations—and have been found on some airplane models, no such cracking has been found on Model 747 airplanes. Such fatigue cracks, if not corrected, could grow large and cause sudden decompression of the airplane. Related ADs This proposed AD is similar to two existing ADs. AD 2006–07–12, amendment 39–14539 (71 FR 16211, March 31, 2006), applies to all Boeing Model 737–100, –200, –200C, –300, –400, and –500 series airplanes. AD 2007–19–07, amendment 39–15198 (72 FR 60244, October 24, 2007), applies to all Boeing Model 757–200, –200PF, and –200CB series airplanes. Those ADs require inspections to detect scribe lines in the fuselage skin at certain lap joints, butt joints, external repair doublers, and other areas; and related investigative/ corrective actions if necessary. Those actions resulted from reports of fuselage skin cracks adjacent to the skin lap joints on airplanes that had scribe lines. Relevant Service Information We have reviewed Boeing Service Bulletin 747–53A2563, Revision 2, dated January 3, 2008. The service bulletin describes procedures for exploratory detailed inspections to detect scribe lines in affected lap and butt splices, wing-to-body fairing locations, and external repair and cutout reinforcement areas. The service bulletin specifies removing paint and sealant from affected areas before the initial exploratory inspection. The compliance time for the exploratory inspections is 15,000 or 25,000 total flight cycles (depending on the inspection location), with a grace period between 500 and 1,500 flight cycles depending on the age of the airplane and the location of the inspection. The service bulletin specifies conditional actions, depending on the size, depth, and location of the damage. These actions include performing eddy current or ultrasonic inspections of the scribe lines to detect cracks, and either repairing scribe lines and cracks or contacting Boeing for repair instructions. The service bulletin specifies repairing scribe lines before further flight, except when a limited return to service (LRTS) program for qualifying scribe lines would allow return to service for a limited period before scribe lines are repaired. The LRTS program includes repetitive inspections to detect cracks where scribe lines are found. To E:\FR\FM\31JAP1.SGM 31JAP1

Agencies

[Federal Register Volume 73, Number 21 (Thursday, January 31, 2008)]
[Proposed Rules]
[Pages 5767-5768]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-1695]


=======================================================================
-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket Nos. FAA-2007-0413 and FAA-2007-0414; Directorate Identifiers 
2007-NM-341-AD and 2007-NM-340-AD]
RIN 2120-AA64


Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional 
Jet Series 100 & 440), CL-600-2C10 (Regional Jet Series 700, 701 & 
702), CL-600-2D15 (Regional Jet Series 705), and CL-600-2D24 (Regional 
Jet Series 900) Airplanes

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

ACTION: Notice of proposed rulemaking (NPRM); correction.

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

SUMMARY: The FAA is correcting typographical errors in two NPRMs that 
were published in the Federal Register on January 4, 2008 (73 FR 833, 
and 73 FR 830). The errors resulted in incorrect docket numbers. One 
NPRM applies to all Bombardier Model CL-600-2B19 (Regional Jet Series 
100 & 440) airplanes. The other NPRM applies to all Bombardier Model 
CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600-2D15 (Regional 
Jet Series 705), and CL-600-2D24 (Regional Jet Series 900) airplanes. 
Both actions proposed to require revising the Airworthiness Limitations 
Section of the Instructions for Continued Airworthiness to incorporate 
new limitations for fuel tank systems.

ADDRESSES: You may examine the AD docket on the Internet at https://
www.regulations.gov; or in person at the Docket Management Facility 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The AD docket contains this AD, the regulatory evaluation, 
any comments received, and other information. The address for the 
Docket Office (telephone 800-647-5527) is the Document 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.

FOR FURTHER INFORMATION CONTACT: Rocco Viselli, Aerospace Engineer, 
Airframe and Propulsion Branch, ANE-171, FAA, New York Aircraft 
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New 
York 11590; telephone (516) 228-7331; fax (516) 794-5531.

SUPPLEMENTARY INFORMATION: On December 26, 2007, the FAA issued a 
notice of proposed rulemaking (NPRM) for all Bombardier Model CL-600-
2B19 (Regional Jet Series 100 & 440) airplanes. That NPRM, Directorate 
Identifier 2007-NM-341-AD, was published in the Federal Register on 
January 4, 2008 (73 FR 833).
    On December 21, 2007, the FAA issued an NPRM for all Bombardier 
Model CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600-2D15 
(Regional Jet Series 705), and CL-600-2D24 (Regional Jet Series 900) 
airplanes. That NPRM, Directorate Identifier 2007-NM-340-AD, was 
published in the Federal Register on January 4, 2008 (73 FR 830).
    Both actions proposed to require revising the Airworthiness 
Limitations Section of the Instructions for Continued Airworthiness to 
incorporate new limitations for fuel tank systems.
    As published, those NPRMs specify incorrect docket numbers 
throughout the preamble and the regulatory text. The docket number 
associated with NPRM Directorate Identifier 2007-NM-341-AD was FAA-
2008-0413, and the docket number associated with NPRM Directorate 
Identifier 2007-NM-340-AD was FAA-2008-0414. The docket numbers were 
assigned by the Federal Document Management System. We have been 
informed that incorrect docket numbers were assigned. The correct 
docket number for NPRM Directorate Identifier 2007-NM-341-AD is FAA-
2007-0413. The correct docket number for NPRM Directorate Identifier 
2007-NM-340-AD is FAA-2007-0414.
    Any commenter who submitted comments to an original, incorrect 
docket number should check Docket No. FAA-2007-0413 or FAA-2007-0414 on 
www.regulations.gov to determine whether the comments have been 
received and filed in the appropriate docket. If not, or if it is not 
possible to determine whether comments have been posted to the correct 
docket, the comments should be resubmitted using the correct docket 
number.
    No other part of the preamble or regulatory information has been 
changed; therefore, the NPRMs are not republished in the Federal 
Register.
    The last date for submitting comments to the NPRMs remains February 
4, 2008.

Correction

    In the Federal Register of January 4, 2008, on page 833, in the 
second column, the headings section of NPRM Docket No. FAA-2008-0413, 
Directorate Identifier 2007-NM-341-AD, is corrected to read as follows:

``[Docket No. FAA-2007-0413; Directorate Identifier 2007-NM-341-AD]''

    In the Federal Register of January 4, 2008, on page 833, in the 
third column, the SUPPLEMENTARY INFORMATION section of NPRM Docket No. 
FAA-2008-0413, Directorate Identifier 2007-NM-341-AD, is corrected to 
read as follows:

``* * * Include ``Docket No. FAA-2007-0413; Directorate Identifier 
2007-NM-341-AD'' at the beginning of your comments. * * *''

    In the Federal Register of January 4, 2008, on page 830, in the 
second column, the headings section of NPRM Docket No. FAA-2008-0414, 
Directorate Identifier 2007-NM-340-AD, is corrected to read as follows:

``[Docket No. FAA-2007-0414; Directorate Identifier 2007-NM-340-AD]''

    In the Federal Register of January 4, 2008, on page 831, in the 
first column, the SUPPLEMENTARY INFORMATION section of NPRM Docket No. 
FAA-2008-0414, Directorate Identifier 2007-NM-340-AD, is corrected to 
read as follows:

``* * * Include ``Docket No. FAA-2007-0414; Directorate Identifier 
2007-NM-340-AD'' at the beginning of your comments. * * *''


Sec.  39.13  [Corrected]

    In the Federal Register of January 4, 2008, on page 835, in the 
first column, paragraph 2. of PART 39--AIRWORTHINESS DIRECTIVES of NPRM 
Docket No. FAA-2008-0413, Directorate Identifier 2007-NM-341-AD is 
corrected to read as follows:
* * * * *
Bombardier, Inc. (Formerly Canadair): Docket No. FAA-2007-0413; 
Directorate Identifier 2007-NM-341-AD.
* * * * *
    In the Federal Register of January 4, 2008, on page 832, in the 
second

[[Page 5768]]

column, paragraph 2. of PART 39--AIRWORTHINESS DIRECTIVES of NPRM 
Docket No. FAA-2008-0414, Directorate Identifier 2007-NM-340-AD is 
corrected to read as follows:
* * * * *
Bombardier, Inc. (Formerly Canadair): Docket No. FAA-2007-0414; 
Directorate Identifier 2007-NM-340-AD.
* * * * *

    Issued in Renton, Washington, on January 24, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service. 5
 [FR Doc. E8-1695 Filed 1-30-08; 8:45 am]
BILLING CODE 4910-13-P
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