Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes, 7661-7663 [E8-2343]

Download as PDF Federal Register / Vol. 73, No. 28 / Monday, February 11, 2008 / Rules and Regulations (or their delegated agent). You are required to assure the product is airworthy before it is returned to service. (3) Reporting Requirements: For any reporting requirement in this AD, under the provisions of the Paperwork Reduction Act, the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120–0056. Related Information (h) Refer to MCAI EASA Airworthiness Directive 2007–0168, dated June 15, 2007; Saab Service Bulletin 340–57–031, Revision 02, dated September 28, 2005; and Saab Service Bulletin 340–57–010, dated March 28, 1989; for related information. Material Incorporated by Reference (i) You must use Saab Service Bulletin 340–57–031, Revision 02, dated September 28, 2005; and Saab Service Bulletin 340–57– 010, dated March 28, 1989; as applicable; to do the actions required by this AD, unless the AD specifies otherwise. (1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this AD, contact Saab Aircraft AB, SAAB Aircraft Product Support, S–581.88, ¨ Linkoping, Sweden. (3) You may review copies at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 741–6030, or go to: https:// www.archives.gov/federal-register/cfr/ibrlocations.html. Issued in Renton, Washington, on January 31, 2008. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E8–2344 Filed 2–8–08; 8:45 am] BILLING CODE 4910–13–P products listed above. This AD results from mandatory continuing airworthiness information (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: Bombardier Aerospace has completed a system safety review of the CL–600–2B19 aircraft fuel system * * *. The assessment showed that sealant has not been applied to bolts on the collector fuel tanks or the transfer ejector fuel pumps. Lack of sealant on the above-noted locations, if not corrected, could result in arcing and potential ignition source inside the fuel tank during lightning strikes and consequent fuel tank explosion. * * * We are issuing this AD to require actions to correct the unsafe condition on these products. DATES: This AD becomes effective March 17, 2008. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of March 17, 2008. ADDRESSES: You may examine the AD docket on the Internet at https:// www.regulations.gov or in person at the U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC. 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: Discussion DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2007–0262; Directorate Identifier 2007–NM–247–AD; Amendment 39–15370; AD 2008–03–19] RIN 2120–AA64 Airworthiness Directives; Bombardier Model CL–600–2B19 (Regional Jet Series 100 & 440) Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. mstockstill on PROD1PC66 with RULES AGENCY: SUMMARY: We are adopting a new airworthiness directive (AD) for the VerDate Aug<31>2005 16:57 Feb 08, 2008 Jkt 214001 We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to include an AD that would apply to the specified products. That NPRM was published in the Federal Register on December 3, 2007 (72 FR 67870). That NPRM proposed to correct an unsafe condition for the specified products. The MCAI states: Bombardier Aerospace has completed a system safety review of the CL–600–2B19 aircraft fuel system against new fuel tank safety standards, introduced in Chapter 525 of the Airworthiness Manual through Notice of Proposed Amendment (NPA) 2002–043. The identified non-compliances were assessed using Transport Canada Policy Letter No. 525–001 to determine if mandatory corrective action is required. The assessment showed that sealant has not been applied to bolts on the collector fuel tanks or the transfer ejector fuel pumps. Lack PO 00000 Frm 00005 Fmt 4700 Sfmt 4700 7661 of sealant on the above-noted locations, if not corrected, could result in arcing and potential ignition source inside the fuel tank during lightning strikes and consequent fuel tank explosion. To correct the unsafe condition, this directive mandates the application of sealant to the bolts that attach various fittings on the collector fuel tanks, [an inspection for a fillet seal and if necessary application of fillet seal] to the edges of the transfer ejector pumps and [an inspection for sealant and if necessary application of sealant] to the bolts that attach the transfer ejector pump to the transfer ejector pump casing. You may obtain further information by examining the MCAI in the AD docket. Comments We gave the public the opportunity to participate in developing this AD. We received no comments on the NPRM or on the determination of the cost to the public. Conclusion We reviewed the available data and determined that air safety and the public interest require adopting the AD as proposed. Differences Between This AD and the MCAI or Service Information We have reviewed the MCAI and related service information and, in general, agree with their substance. But we might have found it necessary to use different words from those in the MCAI to ensure the AD is clear for U.S. operators and is enforceable. In making these changes, we do not intend to differ substantively from the information provided in the MCAI and related service information. We might also have required different actions in this AD from those in the MCAI in order to follow our FAA policies. Any such differences are highlighted in a Note within the AD. Costs of Compliance We estimate that this AD will affect about 626 products of U.S. registry. We also estimate that it will take about 31 work-hours per product to comply with the basic requirements of this AD. The average labor rate is $80 per work-hour. Required parts will cost a negligible amount per product. Where the service information lists required parts costs that are covered under warranty, we have assumed that there will be no charge for these parts. As we do not control warranty coverage for affected parties, some parties may incur costs higher than estimated here. Based on these figures, we estimate the cost of this AD to the U.S. operators to be $1,552,480, or $2,480 per product. E:\FR\FM\11FER1.SGM 11FER1 7662 Federal Register / Vol. 73, No. 28 / Monday, February 11, 2008 / Rules and Regulations Authority for This Rulemaking List of Subjects in 14 CFR Part 39 Title 49 of the United States Code specifies the FAA’s authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. ‘‘Subtitle VII: Aviation Programs,’’ describes in more detail the scope of the Agency’s authority. We are issuing this rulemaking under the authority described in ‘‘Subtitle VII, Part A, Subpart III, Section 44701: General requirements.’’ Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. Regulatory Findings We determined that this AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify this AD: 1. Is not a ‘‘significant regulatory action’’ under Executive Order 12866; 2. Is not a ‘‘significant rule’’ under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. We prepared a regulatory evaluation of the estimated costs to comply with this AD and placed it in the AD docket. mstockstill on PROD1PC66 with RULES Examining the AD Docket You may examine the AD docket on the Internet at https:// www.regulations.gov; or in person at the Docket Operations office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains the NPRM, the regulatory evaluation, any comments received, and other information. The street address for the Docket Operations office (telephone (800) 647–5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. VerDate Aug<31>2005 16:57 Feb 08, 2008 Jkt 214001 Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: I PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: I Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new AD: I 2008–03–19 Bombardier, Inc. (Formerly Canadair): Amendment 39–15370. Docket No. FAA–2007–0262; Directorate Identifier 2007–NM–247–AD. Effective Date (a) This airworthiness directive (AD) becomes effective March 17, 2008. Affected ADs (b) None. Applicability (c) This AD applies to Bombardier Model CL–600–2B19 (Regional Jet Series 100 & 440) airplanes, serial numbers 7003 through 7067 and 7069 through 7924; certificated in any category. Subject (d) Air Transport Association (ATA) of America Code 28: Fuel. Reason (e) The mandatory continuing airworthiness information (MCAI) states: Bombardier Aerospace has completed a system safety review of the CL–600–2B19 aircraft fuel system against new fuel tank safety standards, introduced in Chapter 525 of the Airworthiness Manual through Notice of Proposed Amendment (NPA) 2002–043. The identified non-compliances were assessed using Transport Canada Policy Letter No. 525–001 to determine if mandatory corrective action is required. The assessment showed that sealant has not been applied to bolts on the collector fuel tanks or the transfer ejector fuel pumps. Lack of sealant on the above-noted locations, if not corrected, could result in arcing and potential ignition source inside the fuel tank during lightning strikes and consequent fuel tank explosion. To correct the unsafe condition, this directive mandates the application of sealant to the bolts that attach various fittings on the collector fuel tanks, [an inspection for a fillet seal and if necessary application of fillet seal] to the edges of the transfer ejector pumps and [an inspection for sealant and if necessary application of sealant] to the bolts that attach PO 00000 Frm 00006 Fmt 4700 Sfmt 4700 the transfer ejector pump to the transfer ejector pump casing. Actions and Compliance (f) Unless already done, do the following actions. (1) Within 5,000 flight hours after the effective date of this AD: For airplanes with serial numbers 7003 through 7067 and 7069 through 7797, apply sealant to bolts on the collector fuel tanks according to the Accomplishment Instructions of Bombardier Service Bulletin 601R–28–051, Revision A, dated March 30, 2005. (2) Within 5,000 flight hours after the effective date of this AD: For airplanes with serial numbers 7003 through 7067 and 7069 through 7924, do a general visual inspection of the left and right transfer ejector pumps for the presence of a fillet seal on the edge of the pumps and sealant on the bolts, according to the Accomplishment Instructions of Bombardier Service Bulletin 601R–28–060, Revision A, dated March 30, 2005. (3) If during the inspection required by paragraph (f)(2) of this AD any fillet seal is found missing from the edge of the transfer ejector pump or sealant is found missing from any of the bolts, prior to further flight, apply fillet seal and sealant as applicable to the affected areas according to the Accomplishment Instructions of Bombardier Service Bulletin 601R–28–060, Revision A, dated March 30, 2005. (4) Application of sealant prior to the effective date of this AD according to Bombardier Service Bulletin 601R–28–051, dated May 12, 2003, satisfies the requirements of paragraph (f)(1) of this AD. (5) Inspection and application of sealant and fillet seal prior to the effective date of this AD according to Bombardier Service Bulletin 601R–28–060, dated January 28, 2004, satisfy the corresponding requirements of paragraphs (f)(2) and (f)(3) of this AD. FAA AD Differences Note: This AD differs from the MCAI and/ or service information as follows: No differences. Other FAA AD Provisions (g) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, New York Aircraft Certification Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: 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. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they E:\FR\FM\11FER1.SGM 11FER1 Federal Register / Vol. 73, No. 28 / Monday, February 11, 2008 / Rules and Regulations are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it is returned to service. (3) Reporting Requirements: For any reporting requirement in this AD, under the provisions of the Paperwork Reduction Act, the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120–0056. Related Information (h) Refer to MCAI Canadian Airworthiness Directive CF–2007–17, dated September 4, 2007; and Bombardier Service Bulletins 601R–28–051 and 601R–28–060, both Revision A, both dated March 30, 2005; for related information. Issued in Renton, Washington, on January 31, 2008. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E8–2343 Filed 2–8–08; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION 14 CFR Part 39 [Docket No. FAA–2008–0153; Directorate Identifier 2007–NM–243–AD; Amendment 39–15372; AD 2008–03–21] RIN 2120–AA64 mstockstill on PROD1PC66 with RULES Airworthiness Directives; Fokker Model F.27 Mark 050 Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule; request for comments. AGENCY: VerDate Aug<31>2005 16:57 Feb 08, 2008 Jkt 214001 * * * * * 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 street address for the Docket Operations 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: Tom Rodriguez, Aerospace Engineer, International Branch, ANM–116, FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington 98057–3356; telephone (425) 227–1137; fax (425) 227–1149. SUPPLEMENTARY INFORMATION: Recently, it was discovered that the inspection procedure as described by Fokker 50 Non-Destructive Testing Manual (NDTM), Part 6, Chapter 53–30–02, which is referenced by Fokker 50 Maintenance Review Board (MRB) Tasks Number 530000–00–04 and 530000–00–08 [currently required per AD (BLA) 2002–061], did not show the correct inspection areas. In addition to the existing procedure, the area at the kink in the bottom fuselage skin, the actual chine line, must be inspected. Investigation revealed that a number of aircraft have already passed the relevant inspection thresholds of 20,000 and 45,000 flight cycles by a considerable margin. As a result, it may be possible that cracks have developed and remained undetected. * * * Discussion The Civil Aviation Authority—The Netherlands (CAA–NL), which is the aviation authority for the Netherlands, has issued Dutch Airworthiness Directive NL–2006–009 R1 dated September 28, 2006 (referred to after this as ‘‘the MCAI’’), to correct an unsafe condition for the specified products. The MCAI states: * * Examining the AD Docket You may examine the AD docket on the Internet at https:// www.regulations.gov; or in person at the Docket Operations office between 9 a.m. Material Incorporated by Reference (i) You must use Bombardier Service Bulletin 601R–28–051, Revision A, dated March 30, 2005; and Bombardier Service Bulletin 601R–28–060, Revision A, dated March 30, 2005; as applicable; to do the actions required by this AD, unless the AD specifies otherwise. (1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this AD, contact Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 6087, Station Centre-ville, Montreal, Quebec H3C 3G9, Canada. (3) You may review copies at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 741–6030, or go to: https:// www.archives.gov/federal-register/cfr/ibrlocations.html. Federal Aviation Administration SUMMARY: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (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: 7663 Recently, it was discovered that the inspection procedure as described by Fokker 50 Non-Destructive Testing Manual (NDTM), Part 6, Chapter 53–30–02, which is referenced by Fokker 50 Maintenance Review Board (MRB) Tasks Number 530000–00–04 and 530000–00–08 [currently required per AD (BLA) 2002–061], did not show the correct inspection areas. In addition to the existing procedure, the area at the kink in the bottom fuselage skin, the actual chine line, must be inspected. Investigation revealed that a number of aircraft have already passed the relevant inspection thresholds of 20,000 and 45,000 flight cycles by a considerable margin. As a result, it may be possible that cracks have developed and remained undetected. To prevent future use of the incorrect procedure in NDTM, Part 6, chapter 53–30–02, Fokker Services has removed this procedure from the NDTM and replaced by chapter 53–30–03 (refer to NDTM Temporary Revisions No. 53–004 and 53–005 dated September 15, 2006). Furthermore the Fokker 50/60 Maintenance Planning Document (refer to MPD Temporary Revision No. 53–009 dated August 15, 2006) has been revised to delete references to the incorrect procedure and to include references to the correct procedure of NDTM, Part 6, chapter 53–30– 03. This condition, if not corrected, could result in failure of the fuselage bottom skin. Since an unsafe condition has been identified that is likely to exist or develop on aircraft of this type design, CAA–NL has originally published AD NL–2006–009, which is now replaced by NL–2006–009 R1. This directive requires a one-time inspection of the fuselage bottom skin at the chine line, of the area not covered by the procedure of NDTM, Part 6, chapter 53–30– 02. This one-time inspection consists of two parts: * * * * The unsafe condition is cracking and subsequent failure of the fuselage bottom skin, which could result in reduced structural integrity of the fuselage. This AD requires actions that are intended to address the unsafe condition described in the MCAI. DATES: This AD becomes effective February 26, 2008. The Director of the Federal Register approved the incorporation by reference of certain publications listed in the AD as of February 26, 2008. We must receive comments on this AD by March 12, 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. • Hand Delivery: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–40, 1200 New Jersey Avenue, SE., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. PO 00000 Frm 00007 Fmt 4700 Sfmt 4700 E:\FR\FM\11FER1.SGM * * 11FER1 * *

Agencies

[Federal Register Volume 73, Number 28 (Monday, February 11, 2008)]
[Rules and Regulations]
[Pages 7661-7663]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-2343]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2007-0262; Directorate Identifier 2007-NM-247-AD; 
Amendment 39-15370; AD 2008-03-19]
RIN 2120-AA64


Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional 
Jet Series 100 & 440) Airplanes

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

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for the 
products listed above. This AD results from mandatory continuing 
airworthiness information (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:

    Bombardier Aerospace has completed a system safety review of the 
CL-600-2B19 aircraft fuel system * * *.
    The assessment showed that sealant has not been applied to bolts 
on the collector fuel tanks or the transfer ejector fuel pumps. Lack 
of sealant on the above-noted locations, if not corrected, could 
result in arcing and potential ignition source inside the fuel tank 
during lightning strikes and consequent fuel tank explosion. * * *

We are issuing this AD to require actions to correct the unsafe 
condition on these products.

DATES: This AD becomes effective March 17, 2008.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of March 17, 
2008.

ADDRESSES: You may examine the AD docket on the Internet at https://
www.regulations.gov or in person at the U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC.

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:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to include an AD that would apply to the specified products. 
That NPRM was published in the Federal Register on December 3, 2007 (72 
FR 67870). That NPRM proposed to correct an unsafe condition for the 
specified products. The MCAI states:

    Bombardier Aerospace has completed a system safety review of the 
CL-600-2B19 aircraft fuel system against new fuel tank safety 
standards, introduced in Chapter 525 of the Airworthiness Manual 
through Notice of Proposed Amendment (NPA) 2002-043. The identified 
non-compliances were assessed using Transport Canada Policy Letter 
No. 525-001 to determine if mandatory corrective action is required.
    The assessment showed that sealant has not been applied to bolts 
on the collector fuel tanks or the transfer ejector fuel pumps. Lack 
of sealant on the above-noted locations, if not corrected, could 
result in arcing and potential ignition source inside the fuel tank 
during lightning strikes and consequent fuel tank explosion. To 
correct the unsafe condition, this directive mandates the 
application of sealant to the bolts that attach various fittings on 
the collector fuel tanks, [an inspection for a fillet seal and if 
necessary application of fillet seal] to the edges of the transfer 
ejector pumps and [an inspection for sealant and if necessary 
application of sealant] to the bolts that attach the transfer 
ejector pump to the transfer ejector pump casing.

You may obtain further information by examining the MCAI in the AD 
docket.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We received no comments on the NPRM or on the determination of 
the cost to the public.

Conclusion

    We reviewed the available data and determined that air safety and 
the public interest require adopting the AD as proposed.

Differences Between This AD and the MCAI or Service Information

    We have reviewed the MCAI and related service information and, in 
general, agree with their substance. But we might have found it 
necessary to use different words from those in the MCAI to ensure the 
AD is clear for U.S. operators and is enforceable. In making these 
changes, we do not intend to differ substantively from the information 
provided in the MCAI and related service information.
    We might also have required different actions in this AD from those 
in the MCAI in order to follow our FAA policies. Any such differences 
are highlighted in a Note within the AD.

Costs of Compliance

    We estimate that this AD will affect about 626 products of U.S. 
registry. We also estimate that it will take about 31 work-hours per 
product to comply with the basic requirements of this AD. The average 
labor rate is $80 per work-hour. Required parts will cost a negligible 
amount per product. Where the service information lists required parts 
costs that are covered under warranty, we have assumed that there will 
be no charge for these parts. As we do not control warranty coverage 
for affected parties, some parties may incur costs higher than 
estimated here. Based on these figures, we estimate the cost of this AD 
to the U.S. operators to be $1,552,480, or $2,480 per product.

[[Page 7662]]

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. ``Subtitle VII: Aviation 
Programs,'' describes in more detail the scope of the Agency's 
authority.
    We are issuing this rulemaking under the authority described in 
``Subtitle VII, Part A, Subpart III, Section 44701: General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

Regulatory Findings

    We determined that this AD will not have federalism implications 
under Executive Order 13132. This AD will not have a substantial direct 
effect on the States, on the relationship between the national 
government and the States, or on the distribution of power and 
responsibilities among the various levels of government.
    For the reasons discussed above, I certify this AD:
    1. Is not a ``significant regulatory action'' under Executive Order 
12866;
    2. Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979); and
    3. Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.
    We prepared a regulatory evaluation of the estimated costs to 
comply with this AD and placed it in the AD docket.

Examining the AD Docket

    You may examine the AD docket on the Internet at https://
www.regulations.gov; or in person at the Docket Operations office 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The AD docket contains the NPRM, the regulatory evaluation, 
any comments received, and other information. The street address for 
the Docket Operations office (telephone (800) 647-5527) is in the 
ADDRESSES section. Comments will be available in the AD docket shortly 
after receipt.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

0
Accordingly, under the authority delegated to me by the Administrator, 
the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new AD:

2008-03-19 Bombardier, Inc. (Formerly Canadair): Amendment 39-15370. 
Docket No. FAA-2007-0262; Directorate Identifier 2007-NM-247-AD.

Effective Date

    (a) This airworthiness directive (AD) becomes effective March 
17, 2008.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Bombardier Model CL-600-2B19 (Regional 
Jet Series 100 & 440) airplanes, serial numbers 7003 through 7067 
and 7069 through 7924; certificated in any category.

Subject

    (d) Air Transport Association (ATA) of America Code 28: Fuel.

Reason

    (e) The mandatory continuing airworthiness information (MCAI) 
states:

    Bombardier Aerospace has completed a system safety review of the 
CL-600-2B19 aircraft fuel system against new fuel tank safety 
standards, introduced in Chapter 525 of the Airworthiness Manual 
through Notice of Proposed Amendment (NPA) 2002-043. The identified 
non-compliances were assessed using Transport Canada Policy Letter 
No. 525-001 to determine if mandatory corrective action is required.
    The assessment showed that sealant has not been applied to bolts 
on the collector fuel tanks or the transfer ejector fuel pumps. Lack 
of sealant on the above-noted locations, if not corrected, could 
result in arcing and potential ignition source inside the fuel tank 
during lightning strikes and consequent fuel tank explosion. To 
correct the unsafe condition, this directive mandates the 
application of sealant to the bolts that attach various fittings on 
the collector fuel tanks, [an inspection for a fillet seal and if 
necessary application of fillet seal] to the edges of the transfer 
ejector pumps and [an inspection for sealant and if necessary 
application of sealant] to the bolts that attach the transfer 
ejector pump to the transfer ejector pump casing.

Actions and Compliance

    (f) Unless already done, do the following actions.
    (1) Within 5,000 flight hours after the effective date of this 
AD: For airplanes with serial numbers 7003 through 7067 and 7069 
through 7797, apply sealant to bolts on the collector fuel tanks 
according to the Accomplishment Instructions of Bombardier Service 
Bulletin 601R-28-051, Revision A, dated March 30, 2005.
    (2) Within 5,000 flight hours after the effective date of this 
AD: For airplanes with serial numbers 7003 through 7067 and 7069 
through 7924, do a general visual inspection of the left and right 
transfer ejector pumps for the presence of a fillet seal on the edge 
of the pumps and sealant on the bolts, according to the 
Accomplishment Instructions of Bombardier Service Bulletin 601R-28-
060, Revision A, dated March 30, 2005.
    (3) If during the inspection required by paragraph (f)(2) of 
this AD any fillet seal is found missing from the edge of the 
transfer ejector pump or sealant is found missing from any of the 
bolts, prior to further flight, apply fillet seal and sealant as 
applicable to the affected areas according to the Accomplishment 
Instructions of Bombardier Service Bulletin 601R-28-060, Revision A, 
dated March 30, 2005.
    (4) Application of sealant prior to the effective date of this 
AD according to Bombardier Service Bulletin 601R-28-051, dated May 
12, 2003, satisfies the requirements of paragraph (f)(1) of this AD.
    (5) Inspection and application of sealant and fillet seal prior 
to the effective date of this AD according to Bombardier Service 
Bulletin 601R-28-060, dated January 28, 2004, satisfy the 
corresponding requirements of paragraphs (f)(2) and (f)(3) of this 
AD.

FAA AD Differences

    Note: This AD differs from the MCAI and/or service information 
as follows: No differences.

Other FAA AD Provisions

    (g) The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York Aircraft Certification Office, FAA, has the authority to 
approve AMOCs for this AD, if requested using the procedures found 
in 14 CFR 39.19. Send information to ATTN: 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. Before using any approved AMOC on any airplane to which the 
AMOC applies, notify your appropriate principal inspector (PI) in 
the FAA Flight Standards District Office (FSDO), or lacking a PI, 
your local FSDO.
    (2) Airworthy Product: For any requirement in this AD to obtain 
corrective actions from a manufacturer or other source, use these 
actions if they are FAA-approved. Corrective actions are considered 
FAA-approved if they

[[Page 7663]]

are approved by the State of Design Authority (or their delegated 
agent). You are required to assure the product is airworthy before 
it is returned to service.
    (3) Reporting Requirements: For any reporting requirement in 
this AD, under the provisions of the Paperwork Reduction Act, the 
Office of Management and Budget (OMB) has approved the information 
collection requirements and has assigned OMB Control Number 2120-
0056.

Related Information

    (h) Refer to MCAI Canadian Airworthiness Directive CF-2007-17, 
dated September 4, 2007; and Bombardier Service Bulletins 601R-28-
051 and 601R-28-060, both Revision A, both dated March 30, 2005; for 
related information.

Material Incorporated by Reference

    (i) You must use Bombardier Service Bulletin 601R-28-051, 
Revision A, dated March 30, 2005; and Bombardier Service Bulletin 
601R-28-060, Revision A, dated March 30, 2005; as applicable; to do 
the actions required by this AD, unless the AD specifies otherwise.
    (1) The Director of the Federal Register approved the 
incorporation by reference of this service information under 5 
U.S.C. 552(a) and 1 CFR part 51.
    (2) For service information identified in this AD, contact 
Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 6087, Station 
Centre-ville, Montreal, Quebec H3C 3G9, Canada.
    (3) You may review copies at the FAA, Transport Airplane 
Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the 
National Archives and Records Administration (NARA). For information 
on the availability of this material at NARA, call (202) 741-6030, 
or go to: https://www.archives.gov/federal-register/cfr/ibr-
locations.html.

    Issued in Renton, Washington, on January 31, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
 [FR Doc. E8-2343 Filed 2-8-08; 8:45 am]
BILLING CODE 4910-13-P