80_FR_13809 80 FR 13758 - Airworthiness Directives; Bombardier, Inc. Airplanes

80 FR 13758 - Airworthiness Directives; Bombardier, Inc. Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 80, Issue 51 (March 17, 2015)

Page Range13758-13760
FR Document2015-05717

We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. This AD was prompted by reports of cracking on the skin panels and skin splice joints and angles at certain stringers at various locations between certain fuselage stations. This AD requires revising the maintenance or inspection program, as applicable, to incorporate new or revised maintenance requirements and airworthiness limitations, and incorporating structural repairs and modifications to preclude widespread fatigue damage (WFD). We are issuing this AD to detect and correct WFD, which could adversely affect the structural integrity of the airplane.

Federal Register, Volume 80 Issue 51 (Tuesday, March 17, 2015) 
[Federal Register Volume 80, Number 51 (Tuesday, March 17, 2015)]
[Rules and Regulations]
[Pages 13758-13760]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2015-05717]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2014-0653; Directorate Identifier 2014-NM-057-AD; 
Amendment 39-18113; AD 2015-05-03]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc. Airplanes

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

ACTION: Final rule.

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SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) 
airplanes. This AD was prompted by reports of cracking on the skin 
panels and skin splice joints and angles at certain stringers at 
various locations between certain fuselage stations. This AD requires 
revising the maintenance or inspection program, as applicable, to 
incorporate new or revised maintenance requirements and airworthiness 
limitations, and incorporating structural repairs and modifications to 
preclude widespread fatigue damage (WFD). We are issuing this AD to 
detect and correct WFD, which could adversely affect the structural 
integrity of the airplane.

DATES: This AD becomes effective April 21, 2015.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of April 21, 
2015.

ADDRESSES: You may examine the AD docket on the Internet at http://www.regulations.gov/#!docketDetail;D=FAA-2014-0653 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.
    For service information identified in this AD, contact Bombardier, 
Inc., 400 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, 
Canada; telephone 514-855-5000; fax 514-855-7401; email 
[email protected]; Internet http://www.bombardier.com. You 
may view this referenced service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information 
on the availability of this material at the FAA, call 425-227-1221. It 
is also available on the Internet at http://www.regulations.gov by 
searching for and locating Docket No. FAA-2014-0653.

FOR FURTHER INFORMATION CONTACT: Aziz Ahmed, Aerospace Engineer, 
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft 
Certification Office (ACO), 1600 Stewart Avenue, Suite 410, Westbury, 
NY 11590; telephone: 516-228-7329; fax: 516-794-5531; email: 
[email protected].

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to certain Bombardier, Inc. 
Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. The NPRM 
published in the Federal Register on October 1, 2014 (79 FR 59157). The 
NPRM was prompted by reports of cracking on the skin panels and skin 
splice joints and angles at certain stringers at various locations 
between certain fuselage stations. The NPRM proposed to require 
revising the maintenance or inspection program, as applicable, to 
incorporate new or revised maintenance requirements and airworthiness 
limitations, and incorporating structural repairs and modifications to 
preclude WFD. We are issuing this AD to detect and correct WFD, which 
could adversely affect the structural integrity of the airplane.
    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian Airworthiness Directive CF-
2014-07, dated January 31, 2014 (referred to after this as the 
Mandatory Continuing Airworthiness Information, or ``the MCAI''), to 
correct an unsafe condition for certain Bombardier, Inc. Model CL-600-
2B19 (Regional Jet Series 100 & 440) airplanes. The MCAI states:

    Complete aeroplane fatigue testing on a CL-600-2B19 aeroplane by 
the aeroplane manufacturer revealed the onset of simultaneous 
cracking on the skin panels and skin splice joints and angles at 
stringers number 6 and 20 at various locations

[[Page 13759]]

between fuselage stations (FS) 409.00 to FS 589.00.
    Cracks at multiple locations may reduce the residual strength of 
the joint below the required levels if the cracks are not detectable 
under the existing maintenance program established at the time of 
certification. This multiple site damage (MSD) behavior, if not 
corrected, could lead to widespread fatigue damage (WFD) and 
adversely affect the structural integrity of the aeroplane and/or 
could result in rapid decompression of the aeroplane.
    A Temporary Revision (TR) has been made to the Maintenance 
Requirements Manual (MRM) to revise existing Airworthiness 
Limitations (AWL) tasks and introduce new inspection tasks for the 
detection of MSD. The aeroplane manufacturer is also developing a 
structural modification to preclude WFD from occurring in the fleet 
at these locations.
    This [Canadian] AD mandates the incorporation of the new and 
revised AWL tasks [into the maintenance program], and a structural 
modification to preclude WFD.

You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov/#!documentDetail;D=FAA-2014-0653-0003.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We received no valid comments on the NPRM (79 FR 59157, 
October 1, 2014) or on the determination of the cost to the public.

Conclusion

    We reviewed the relevant data and determined that air safety and 
the public interest require adopting this AD as proposed except for 
minor editorial changes. We have determined that these minor changes:
     Are consistent with the intent that was proposed in the 
NPRM (79 FR 59157, October 1, 2014) for correcting the unsafe 
condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM (79 FR 59157, October 1, 2014).

Related Service Information Under 1 CFR Part 51

    We reviewed the following service information.
     Airworthiness Limitations (AWL) Task 53-41-109, 
Longitudinal Str. 6 splice at STR 6 and 20, of Appendix B, 
Airworthiness Limitations, of Part 2, Airworthiness Requirements, 
Revision 9, dated June 10, 2013, of the Bombardier CL-600-2B19 
Maintenance Requirements Manual, CSP A-053. This service information 
describes procedures for inspecting the longitudinal stringer 6 splice 
at stringers 6 and 20.
     AWL Task 53-41-110, Longitudinal Str. 6 splice butt strap 
at Str. 6, FS409.0 to FS617.0, of Appendix B, Airworthiness 
Limitations, of Part 2, Airworthiness Requirements, Revision 9, dated 
June 10, 2013, of the Bombardier CL-600-2B19 Maintenance Requirements 
Manual, CSP A-053. This service information describes procedures for 
inspecting the longitudinal stringer 6 splice butt at stringer 6 at 
fuselage station 409.0 to fuselage station 617.0.
     AWL Task 53-41-204, Frame splice angles at STR 6 and 20, 
of Appendix B, Airworthiness Limitations, of Part 2, Airworthiness 
Requirements, Revision 9, dated June 10, 2013, of the Bombardier CL-
600-2B19 Maintenance Requirements Manual, CSP A-053. This service 
information describes procedures for inspecting the frame splice angles 
at stringers 6 and 20.
     AWL Task 53-41-205, Longitudinal skin splice at STR 6 and 
20, of Appendix B, Airworthiness Limitations, of Part 2, Airworthiness 
Requirements, Revision 9, dated June 10, 2013, of the Bombardier CL-
600-2B19 Maintenance Requirements Manual, CSP A-053. This service 
information describes procedures for inspecting the longitudinal skin 
splice at stringers 6 and 20.
    This service information is reasonably available; see ADDRESSES for 
ways to access this service information.

Costs of Compliance

    We estimate that this AD affects 526 airplanes of U.S. registry.
    We also estimate that it would take about 1 work-hour per product 
to comply with the basic requirements of this AD. We have received no 
definitive data that would enable us to provide cost estimates for the 
repairs and modifications specified in this AD. The average labor rate 
is $85 per work-hour. Based on these figures, we estimate the cost of 
this AD on U.S. operators to be $44,710, or $85 per product.

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 that 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);
    3. Will not affect intrastate aviation in Alaska; and
    4. 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.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov/#!docketDetail;D=FAA-2014-0653; 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 street address for the Docket Operations office (telephone 800-647-
5527) is in the ADDRESSES section.

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

    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.

[[Page 13760]]

Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

2015-05-03 Bombardier, Inc.: Amendment 39-18113. Docket No. FAA-
2014-0653; Directorate Identifier 2014-NM-057-AD.

(a) Effective Date

    This AD becomes effective April 21, 2015.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc. Model CL-600-2B19 (Regional 
Jet Series 100 & 440) airplanes, certificated in any category, 
serial numbers 7003 and subsequent.

(d) Subject

    Air Transport Association (ATA) of America Code 05, Periodic 
Inspections.

(e) Reason

    This AD was prompted by reports of cracking on the skin panels 
and skin splice joints and angles at certain stringers at various 
locations between certain fuselage stations. We are issuing this AD 
to detect and correct widespread fatigue damage, which could 
adversely affect the structural integrity of the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Revision of Maintenance or Inspection Program

    Within 60 days after the effective date of this AD: Revise the 
maintenance or inspection program, as applicable, by incorporating 
the airworthiness limitations (AWL) tasks specified in paragraphs 
(g)(1) through (g)(4) of this AD. The initial compliance times for 
the tasks start from the applicable threshold times specified in 
Part 2 Airworthiness Requirements, Revision 9, dated June 10, 2013, 
of Appendix B, Airworthiness Limitations, of Bombardier CL-600-2B19, 
Maintenance Requirements Manual, CSP A-053; except that, for 
airplanes that have accumulated more than 38,000 total flight cycles 
as of the effective date of this AD, the initial compliance time for 
the AWL tasks is before the accumulation of 2,000 flight cycles 
after the effective date of this AD.
    (1) AWL Task 53-41-109, Longitudinal Str. 6 splice at STR 6 and 
20, of Appendix B, Airworthiness Limitations, of Part 2, 
Airworthiness Requirements, Revision 9, dated June 10, 2013, of the 
Bombardier CL-600-2B19, Maintenance Requirements Manual, CSP A-053.
    (2) AWL Task 53-41-110, Longitudinal Str. 6 splice butt strap at 
Str. 6, FS409.0 to FS617.0, of Appendix B, Airworthiness 
Limitations, of Part 2, Airworthiness Requirements, Revision 9, 
dated June 10, 2013, of the Bombardier CL-600-2B19, Maintenance 
Requirements Manual, CSP A-053.
    (3) AWL Task 53-41-204, Frame splice angles at STR 6 and 20, of 
Appendix B, Airworthiness Limitations, of Part 2, Airworthiness 
Requirements, Revision 9, dated June 10, 2013, of the Bombardier CL-
600-2B19, Maintenance Requirements Manual, CSP A-053.
    (4) AWL Task 53-41-205, Longitudinal skin splice at STR 6 and 
20., of Appendix B, Airworthiness Limitations, of Part 2, 
Airworthiness Requirements, Revision 9, dated June 10, 2013, of the 
Bombardier CL-600-2B19, Maintenance Requirements Manual, CSP A-053.

(h) No Alternative Actions or Intervals

    After the maintenance or inspection program has been revised as 
required by paragraph (g) of this AD, no alternative actions (e.g., 
inspections) or intervals may be used unless the actions or 
intervals are approved as an alternative method of compliance (AMOC) 
in accordance with the procedures specified in paragraph (j)(1) of 
this AD.

(i) Repairs and Modifications

    Before the accumulation of 60,000 total flight cycles: Install 
repairs and modifications to preclude widespread fatigue damage at 
locations specified in the tasks identified in paragraphs (g)(1) 
through (g)(4) of this AD, using a method approved by the Manager, 
New York ACO, ANE-170, FAA; or Transport Canada Civil Aviation 
(TCCA); or Bombardier, Inc.'s TCCA Design Approval Organization 
(DAO). If approved by the DAO, the approval must include the DAO-
authorized signature.

(j) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York ACO, ANE-170, FAA, has the authority to approve AMOCs for this 
AD, if requested using the procedures found in 14 CFR 39.19. In 
accordance with 14 CFR 39.19, send your request to your principal 
inspector or local Flight Standards District Office, as appropriate. 
If sending information directly to the ACO, send it to ATTN: Program 
Manager, Continuing Operational Safety, FAA, New York ACO, 1600 
Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-
7300; fax 516-794-5531. Before using any approved AMOC, notify your 
appropriate principal inspector, or lacking a principal inspector, 
the manager of the local flight standards district office/
certificate holding district office. The AMOC approval letter must 
specifically reference this AD.
    (2) Contacting the Manufacturer: For any requirement in this AD 
to obtain corrective actions from a manufacturer, the action must be 
accomplished using a method approved by the Manager, New York ACO, 
ANE-170, FAA; or Transport Canada Civil Aviation (TCCA); or 
Bombardier, Inc.'s TCCA Design Approval Organization (DAO). If 
approved by the DAO, the approval must include the DAO-authorized 
signature.

(k) Related Information

    Refer to Mandatory Continuing Airworthiness Information (MCAI) 
Canadian Airworthiness Directive CF-2014-07, dated January 31, 2014, 
for related information. This MCAI may be found in the AD docket on 
the Internet at http://www.regulations.gov/#!documentDetail;D=FAA-
2014-0653-0003.

(l) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless this AD specifies otherwise.
    (i) Appendix B, Airworthiness Limitations, of Part 2, 
Airworthiness Requirements, Revision 9, dated June 10, 2013, of the 
Bombardier CL-600-2B19 Maintenance Requirements Manual, CSP A-053:
    (A) Airworthiness Limitations (AWL) Task 53-41-109, Longitudinal 
Str. 6 splice at STR 6 and 20;
    (B) AWL Task 53-41-110, Longitudinal Str. 6 splice butt strap at 
Str. 6, FS409.0 to FS617.0;
    (C) AWL Task 53-41-204, Frame splice angles at STR 6 and 20; and
    (D) AWL Task 53-41-205, Longitudinal skin splice at STR 6 and 
20.
    (ii) Reserved.
    (3) For service information identified in this AD, contact 
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval, 
Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-
7401; email [email protected]; Internet http://www.bombardier.com.
    (4) You may view this service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For 
information on the availability of this material at the FAA, call 
425-227-1221.
    (5) You may view this service information that is incorporated 
by reference 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: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued in Renton, Washington, on March 2, 2015.
Jeffrey E. Duven,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2015-05717 Filed 3-16-15; 8:45 am]
 BILLING CODE 4910-13-P

13758 Federal Register / Vol. 80, No. 51 / Tuesday, March 17, 2015 / Rules and Regulations benefits of available regulatory Title 5—Administrative Personnel Côte-Vertu Road West, Dorval, Québec alternatives and, if regulation is CHAPTER XV—[REMOVED] H4S 1Y9, Canada; telephone 514–855– necessary, to select regulatory 5000; fax 514–855–7401; email approaches that maximize net benefits ■ 3. Remove chapter XV, consisting of thd.crj@aero.bombardier.com; Internet (including potential economic, parts 2500 through 2599. http://www.bombardier.com. You may environmental, public health and safety Dated: February 23, 2015. view this referenced service information effects, distributive impacts, and Beth A. Jones, at the FAA, Transport Airplane equity). Executive Order 13563 Deputy Assistant to the President, Director, Directorate, 1601 Lind Avenue SW., emphasizes the importance of Office of Administration. Renton, WA. For information on the quantifying both costs and benefits, [FR Doc. 2015–05899 Filed 3–16–15; 8:45 am] availability of this material at the FAA, reducing costs, harmonizing rules, and BILLING CODE 3215–F5–P call 425–227–1221. It is also available promoting flexibility. This rule has not on the Internet at http:// been designated a ‘‘significant www.regulations.gov by searching for regulatory action’’ under Executive DEPARTMENT OF TRANSPORTATION and locating Docket No. FAA–2014– Order 12866. 0653. Notwithstanding any other provision Federal Aviation Administration FOR FURTHER INFORMATION CONTACT: Aziz of law, no person is required to respond Ahmed, Aerospace Engineer, Airframe to, nor shall any person be subject to a 14 CFR Part 39 and Mechanical Systems Branch, ANE– penalty for failure to comply with a [Docket No. FAA–2014–0653; Directorate 171, FAA, New York Aircraft collection of information subject to the Identifier 2014–NM–057–AD; Amendment Certification Office (ACO), 1600 Stewart requirements of the Paperwork 39–18113; AD 2015–05–03] Avenue, Suite 410, Westbury, NY Reduction Act of 1995 (44 U.S.C. 3501– 11590; telephone: 516–228–7329; fax: RIN 2120–AA64 3521), unless that collection of 516–794–5531; email: information displays a currently valid Airworthiness Directives; Bombardier, aziz.ahmed@faa.gov. Office of Management and Budget Inc. Airplanes Control Number. This rule does not SUPPLEMENTARY INFORMATION: involve any collection of information AGENCY: Federal Aviation Discussion subject to the Paperwork Reduction Act. Administration (FAA), Department of This rule does not contain ‘‘policies Transportation (DOT). We issued a notice of proposed that have federalism implications’’ as ACTION: Final rule. rulemaking (NPRM) to amend 14 CFR that term is defined under Executive part 39 by adding an AD that would SUMMARY: We are adopting a new apply to certain Bombardier, Inc. Model Order 13132. airworthiness directive (AD) for certain CL–600–2B19 (Regional Jet Series 100 & List of Subjects Bombardier, Inc. Model CL–600–2B19 440) airplanes. The NPRM published in (Regional Jet Series 100 & 440) the Federal Register on October 1, 2014 3 CFR Part 101 airplanes. This AD was prompted by (79 FR 59157). The NPRM was Freedom of information. reports of cracking on the skin panels prompted by reports of cracking on the and skin splice joints and angles at skin panels and skin splice joints and 5 CFR Part 2500 certain stringers at various locations angles at certain stringers at various between certain fuselage stations. This locations between certain fuselage Classified information. AD requires revising the maintenance or stations. The NPRM proposed to require 5 CFR Part 2502 inspection program, as applicable, to revising the maintenance or inspection incorporate new or revised maintenance program, as applicable, to incorporate Courts, Freedom of information. requirements and airworthiness new or revised maintenance 5 CFR Part 2504 limitations, and incorporating structural requirements and airworthiness repairs and modifications to preclude limitations, and incorporating structural Privacy. widespread fatigue damage (WFD). We repairs and modifications to preclude Accordingly, under the authority of 5 are issuing this AD to detect and correct WFD. We are issuing this AD to detect U.S.C. 553 and as discussed in the WFD, which could adversely affect the and correct WFD, which could preamble, amend 3 CFR part 101 and structural integrity of the airplane. adversely affect the structural integrity chapter XV of title 5 of the Code of DATES: This AD becomes effective April of the airplane. Federal Regulations as follows. 21, 2015. Transport Canada Civil Aviation The Director of the Federal Register (TCCA), which is the aviation authority Title 3—The President approved the incorporation by reference for Canada, has issued Canadian CHAPTER I—EXECUTIVE OFFICE OF THE of certain publications listed in this AD Airworthiness Directive CF–2014–07, PRESIDENT as of April 21, 2015. dated January 31, 2014 (referred to after ADDRESSES: You may examine the AD this as the Mandatory Continuing PART 101—PUBLIC INFORMATION docket on the Internet at http:// Airworthiness Information, or ‘‘the PROVISIONS OF THE www.regulations.gov/ MCAI’’), to correct an unsafe condition ADMINISTRATIVE PROCEDURES ACT #!docketDetail;D=FAA-2014-0653 or in for certain Bombardier, Inc. Model CL– person at the Docket Management 600–2B19 (Regional Jet Series 100 & rljohnson on DSK3VPTVN1PROD with RULES ■ 1. The authority citation for part 101 Facility, U.S. Department of 440) airplanes. The MCAI states: continues to read as follows: Transportation, Docket Operations, M– Complete aeroplane fatigue testing on a Authority: 5 U.S.C. 552. 30, West Building Ground Floor, Room CL–600–2B19 aeroplane by the aeroplane W12–140, 1200 New Jersey Avenue SE., manufacturer revealed the onset of § 101.3 [REMOVED] Washington, DC. simultaneous cracking on the skin panels and For service information identified in skin splice joints and angles at stringers ■ 2. Remove § 101.3. this AD, contact Bombardier, Inc., 400 number 6 and 20 at various locations VerDate Sep<11>2014 15:20 Mar 16, 2015 Jkt 235001 PO 00000 Frm 00002 Fmt 4700 Sfmt 4700 E:\FR\FM\17MRR1.SGM 17MRR1

Federal Register / Vol. 80, No. 51 / Tuesday, March 17, 2015 / Rules and Regulations 13759 between fuselage stations (FS) 409.00 to FS • AWL Task 53–41–110, Longitudinal for practices, methods, and procedures 589.00. Str. 6 splice butt strap at Str. 6, FS409.0 the Administrator finds necessary for Cracks at multiple locations may reduce to FS617.0, of Appendix B, safety in air commerce. This regulation the residual strength of the joint below the required levels if the cracks are not Airworthiness Limitations, of Part 2, is within the scope of that authority detectable under the existing maintenance Airworthiness Requirements, Revision because it addresses an unsafe condition program established at the time of 9, dated June 10, 2013, of the that is likely to exist or develop on certification. This multiple site damage Bombardier CL–600–2B19 Maintenance products identified in this rulemaking (MSD) behavior, if not corrected, could lead Requirements Manual, CSP A–053. This action. to widespread fatigue damage (WFD) and service information describes adversely affect the structural integrity of the Regulatory Findings procedures for inspecting the aeroplane and/or could result in rapid longitudinal stringer 6 splice butt at We determined that this AD will not decompression of the aeroplane. A Temporary Revision (TR) has been made stringer 6 at fuselage station 409.0 to have federalism implications under to the Maintenance Requirements Manual fuselage station 617.0. Executive Order 13132. This AD will (MRM) to revise existing Airworthiness • AWL Task 53–41–204, Frame splice not have a substantial direct effect on Limitations (AWL) tasks and introduce new angles at STR 6 and 20, of Appendix B, the States, on the relationship between inspection tasks for the detection of MSD. Airworthiness Limitations, of Part 2, the national government and the States, The aeroplane manufacturer is also Airworthiness Requirements, Revision or on the distribution of power and developing a structural modification to 9, dated June 10, 2013, of the preclude WFD from occurring in the fleet at responsibilities among the various Bombardier CL–600–2B19 Maintenance levels of government. these locations. This [Canadian] AD mandates the Requirements Manual, CSP A–053. This For the reasons discussed above, I incorporation of the new and revised AWL service information describes certify that this AD: tasks [into the maintenance program], and a procedures for inspecting the frame 1. Is not a ‘‘significant regulatory structural modification to preclude WFD. splice angles at stringers 6 and 20. • AWL Task 53–41–205, Longitudinal action’’ under Executive Order 12866; You may examine the MCAI in the AD 2. Is not a ‘‘significant rule’’ under the docket on the Internet at http:// skin splice at STR 6 and 20, of Appendix B, Airworthiness Limitations, DOT Regulatory Policies and Procedures www.regulations.gov/ (44 FR 11034, February 26, 1979); #!documentDetail;D=FAA-2014-0653- of Part 2, Airworthiness Requirements, 0003. Revision 9, dated June 10, 2013, of the 3. Will not affect intrastate aviation in Bombardier CL–600–2B19 Maintenance Alaska; and Comments Requirements Manual, CSP A–053. This 4. Will not have a significant We gave the public the opportunity to service information describes economic impact, positive or negative, participate in developing this AD. We procedures for inspecting the on a substantial number of small entities received no valid comments on the longitudinal skin splice at stringers 6 under the criteria of the Regulatory NPRM (79 FR 59157, October 1, 2014) and 20. Flexibility Act. or on the determination of the cost to This service information is reasonably available; see ADDRESSES for ways to Examining the AD Docket the public. access this service information. You may examine the AD docket on Conclusion Costs of Compliance the Internet at http:// We reviewed the relevant data and www.regulations.gov/ determined that air safety and the We estimate that this AD affects 526 #!docketDetail;D=FAA-2014-0653; or in public interest require adopting this AD airplanes of U.S. registry. person at the Docket Management as proposed except for minor editorial We also estimate that it would take Facility between 9 a.m. and 5 p.m., changes. We have determined that these about 1 work-hour per product to Monday through Friday, except Federal minor changes: comply with the basic requirements of holidays. The AD docket contains this • Are consistent with the intent that this AD. We have received no definitive AD, the regulatory evaluation, any was proposed in the NPRM (79 FR data that would enable us to provide comments received, and other 59157, October 1, 2014) for correcting cost estimates for the repairs and information. The street address for the the unsafe condition; and modifications specified in this AD. The Docket Operations office (telephone • Do not add any additional burden average labor rate is $85 per work-hour. 800–647–5527) is in the ADDRESSES upon the public than was already Based on these figures, we estimate the section. proposed in the NPRM (79 FR 59157, cost of this AD on U.S. operators to be October 1, 2014). $44,710, or $85 per product. List of Subjects in 14 CFR Part 39 Related Service Information Under 1 Authority for This Rulemaking Air transportation, Aircraft, Aviation CFR Part 51 Title 49 of the United States Code safety, Incorporation by reference, We reviewed the following service specifies the FAA’s authority to issue Safety. information. rules on aviation safety. Subtitle I, Adoption of the Amendment • Airworthiness Limitations (AWL) section 106, describes the authority of Task 53–41–109, Longitudinal Str. 6 the FAA Administrator. ‘‘Subtitle VII: Accordingly, under the authority splice at STR 6 and 20, of Appendix B, Aviation Programs,’’ describes in more delegated to me by the Administrator, Airworthiness Limitations, of Part 2, detail the scope of the Agency’s the FAA amends 14 CFR part 39 as Airworthiness Requirements, Revision authority. follows: rljohnson on DSK3VPTVN1PROD with RULES 9, dated June 10, 2013, of the We are issuing this rulemaking under Bombardier CL–600–2B19 Maintenance the authority described in ‘‘Subtitle VII, PART 39—AIRWORTHINESS Requirements Manual, CSP A–053. This Part A, Subpart III, Section 44701: DIRECTIVES service information describes General requirements.’’ Under that procedures for inspecting the section, Congress charges the FAA with ■ 1. The authority citation for part 39 longitudinal stringer 6 splice at stringers promoting safe flight of civil aircraft in continues to read as follows: 6 and 20. air commerce by prescribing regulations Authority: 49 U.S.C. 106(g), 40113, 44701. VerDate Sep<11>2014 15:20 Mar 16, 2015 Jkt 235001 PO 00000 Frm 00003 Fmt 4700 Sfmt 4700 E:\FR\FM\17MRR1.SGM 17MRR1

13760 Federal Register / Vol. 80, No. 51 / Tuesday, March 17, 2015 / Rules and Regulations § 39.13 [Amended] (3) AWL Task 53–41–204, Frame splice Airworthiness Directive CF–2014–07, dated angles at STR 6 and 20, of Appendix B, January 31, 2014, for related information. ■ 2. The FAA amends § 39.13 by adding Airworthiness Limitations, of Part 2, This MCAI may be found in the AD docket the following new airworthiness Airworthiness Requirements, Revision 9, on the Internet at http:// directive (AD): dated June 10, 2013, of the Bombardier CL– www.regulations.gov/ 600–2B19, Maintenance Requirements 2015–05–03 Bombardier, Inc.: Amendment #!documentDetail;D=FAA-2014-0653-0003. Manual, CSP A–053. 39–18113. Docket No. FAA–2014–0653; (4) AWL Task 53–41–205, Longitudinal (l) Material Incorporated by Reference Directorate Identifier 2014–NM–057–AD. skin splice at STR 6 and 20., of Appendix B, Airworthiness Limitations, of Part 2, (1) The Director of the Federal Register (a) Effective Date Airworthiness Requirements, Revision 9, approved the incorporation by reference This AD becomes effective April 21, 2015. dated June 10, 2013, of the Bombardier CL– (IBR) of the service information listed in this (b) Affected ADs 600–2B19, Maintenance Requirements paragraph under 5 U.S.C. 552(a) and 1 CFR Manual, CSP A–053. part 51. None. (2) You must use this service information (h) No Alternative Actions or Intervals (c) Applicability as applicable to do the actions required by After the maintenance or inspection this AD, unless this AD specifies otherwise. This AD applies to Bombardier, Inc. Model program has been revised as required by CL–600–2B19 (Regional Jet Series 100 & 440) (i) Appendix B, Airworthiness Limitations, paragraph (g) of this AD, no alternative airplanes, certificated in any category, serial of Part 2, Airworthiness Requirements, actions (e.g., inspections) or intervals may be numbers 7003 and subsequent. Revision 9, dated June 10, 2013, of the used unless the actions or intervals are (d) Subject approved as an alternative method of Bombardier CL–600–2B19 Maintenance compliance (AMOC) in accordance with the Requirements Manual, CSP A–053: Air Transport Association (ATA) of procedures specified in paragraph (j)(1) of (A) Airworthiness Limitations (AWL) Task America Code 05, Periodic Inspections. this AD. 53–41–109, Longitudinal Str. 6 splice at STR (e) Reason 6 and 20; (i) Repairs and Modifications This AD was prompted by reports of (B) AWL Task 53–41–110, Longitudinal Before the accumulation of 60,000 total cracking on the skin panels and skin splice Str. 6 splice butt strap at Str. 6, FS409.0 to flight cycles: Install repairs and joints and angles at certain stringers at FS617.0; modifications to preclude widespread fatigue various locations between certain fuselage (C) AWL Task 53–41–204, Frame splice damage at locations specified in the tasks stations. We are issuing this AD to detect and identified in paragraphs (g)(1) through (g)(4) angles at STR 6 and 20; and correct widespread fatigue damage, which of this AD, using a method approved by the (D) AWL Task 53–41–205, Longitudinal could adversely affect the structural integrity Manager, New York ACO, ANE–170, FAA; or skin splice at STR 6 and 20. of the airplane. Transport Canada Civil Aviation (TCCA); or (ii) Reserved. (f) Compliance Bombardier, Inc.’s TCCA Design Approval (3) For service information identified in Organization (DAO). If approved by the DAO, this AD, contact Bombardier, Inc., 400 Côte- Comply with this AD within the the approval must include the DAO- Vertu Road West, Dorval, Québec H4S 1Y9, compliance times specified, unless already authorized signature. done. Canada; telephone 514–855–5000; fax 514– (j) Other FAA AD Provisions 855–7401; email (g) Revision of Maintenance or Inspection Program The following provisions also apply to this thd.crj@aero.bombardier.com; Internet http:// AD: www.bombardier.com. Within 60 days after the effective date of (1) Alternative Methods of Compliance (4) You may view this service information this AD: Revise the maintenance or (AMOCs): The Manager, New York ACO, at the FAA, Transport Airplane Directorate, inspection program, as applicable, by ANE–170, FAA, has the authority to approve incorporating the airworthiness limitations 1601 Lind Avenue SW., Renton, WA. For AMOCs for this AD, if requested using the information on the availability of this (AWL) tasks specified in paragraphs (g)(1) procedures found in 14 CFR 39.19. In through (g)(4) of this AD. The initial material at the FAA, call 425–227–1221. accordance with 14 CFR 39.19, send your compliance times for the tasks start from the (5) You may view this service information request to your principal inspector or local applicable threshold times specified in Part Flight Standards District Office, as that is incorporated by reference at the 2 Airworthiness Requirements, Revision 9, appropriate. If sending information directly National Archives and Records dated June 10, 2013, of Appendix B, to the ACO, send it to ATTN: Program Administration (NARA). For information on Airworthiness Limitations, of Bombardier Manager, Continuing Operational Safety, the availability of this material at NARA, call CL–600–2B19, Maintenance Requirements FAA, New York ACO, 1600 Stewart Avenue, 202–741–6030, or go to: http:// Manual, CSP A–053; except that, for Suite 410, Westbury, NY 11590; telephone www.archives.gov/federal-register/cfr/ibr- airplanes that have accumulated more than 516–228–7300; fax 516–794–5531. Before locations.html. 38,000 total flight cycles as of the effective using any approved AMOC, notify your date of this AD, the initial compliance time appropriate principal inspector, or lacking a Issued in Renton, Washington, on March 2, for the AWL tasks is before the accumulation principal inspector, the manager of the local 2015. of 2,000 flight cycles after the effective date flight standards district office/certificate Jeffrey E. Duven, of this AD. holding district office. The AMOC approval (1) AWL Task 53–41–109, Longitudinal Str. letter must specifically reference this AD. Manager, Transport Airplane Directorate, 6 splice at STR 6 and 20, of Appendix B, (2) Contacting the Manufacturer: For any Aircraft Certification Service. Airworthiness Limitations, of Part 2, requirement in this AD to obtain corrective [FR Doc. 2015–05717 Filed 3–16–15; 8:45 am] Airworthiness Requirements, Revision 9, actions from a manufacturer, the action must BILLING CODE 4910–13–P dated June 10, 2013, of the Bombardier CL– be accomplished using a method approved 600–2B19, Maintenance Requirements by the Manager, New York ACO, ANE–170, Manual, CSP A–053. FAA; or Transport Canada Civil Aviation (2) AWL Task 53–41–110, Longitudinal Str. rljohnson on DSK3VPTVN1PROD with RULES (TCCA); or Bombardier, Inc.’s TCCA Design 6 splice butt strap at Str. 6, FS409.0 to Approval Organization (DAO). If approved by FS617.0, of Appendix B, Airworthiness the DAO, the approval must include the Limitations, of Part 2, Airworthiness DAO-authorized signature. Requirements, Revision 9, dated June 10, 2013, of the Bombardier CL–600–2B19, (k) Related Information Maintenance Requirements Manual, CSP A– Refer to Mandatory Continuing 053. Airworthiness Information (MCAI) Canadian VerDate Sep<11>2014 15:20 Mar 16, 2015 Jkt 235001 PO 00000 Frm 00004 Fmt 4700 Sfmt 9990 E:\FR\FM\17MRR1.SGM 17MRR1


Document Created: 2015-12-18 12:00:59
Document Modified: 2015-12-18 12:00:59
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis AD becomes effective April 21, 2015.
ContactAziz Ahmed, Aerospace Engineer, Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft Certification Office (ACO), 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone: 516-228-7329; fax: 516-794-5531; email: [email protected]
FR Citation80 FR 13758 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
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