Airworthiness Directives; Bombardier, Inc. Airplanes

[Federal Register Volume 78, Number 29 (Tuesday, February 12, 2013)]
[Rules and Regulations]
[Pages 9783-9785]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2013-02724]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2012-0725; Directorate Identifier 2011-NM-207-AD; 
Amendment 39-17343; AD 2013-03-08]
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-600-1A11 (CL-600), CL-600-2A12 (CL-601), and 
CL-600-2B16 (CL-601-3A, CL-601-3R, & CL-604 Variants) airplanes. This 
AD was prompted by reports of cracking found on the upper and lower Web 
of the engine support beam. This AD requires revising the maintenance 
program. We are issuing this AD to detect and correct fatigue cracking 
of the engine support beam, which could result in failure of the engine 
support beam and affect the structural integrity of the airplane.

DATES: This AD becomes effective March 19, 2013.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of March 19, 
2013.

ADDRESSES: You may examine the AD docket on the Internet at http://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: Stephen Kowalski, Aerospace Engineer, 
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft 
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New 
York 11590; telephone (516) 228-7327; 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 July 31, 2012 (77 FR 
45288). That NPRM proposed to correct an unsafe condition for the 
specified products. The Mandatory Continuing Airworthiness Information 
(MCAI) states:

    Cracks on the upper and lower Web of the Engine Support Beam 
(ESB) have been discovered on two (2) Challenger aeroplanes in 
service. Failure of the ESB could adversely affect the structural 
integrity of the aeroplane.
    A Temporary Revision (TR) has been made to the Time Limits/
Maintenance Checks (TLMC) manual to introduce a new Airworthiness 
Limitations (AWL) task to ensure that fatigue cracking of the ESB is 
detected and corrected.
    This [Canadian] directive mandates the incorporation of the new 
AWL task.

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 (77 FR 45288, July 31, 
2012) 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--except for 
minor editorial changes. We have determined that these minor changes:
    <bullet> Are consistent with the intent that was proposed in the 
NPRM (77 FR

[[Page 9784]]

45288, July 31, 2012) for correcting the unsafe condition; and
    <bullet> Do not add any additional burden upon the public than was 
already proposed in the NPRM (77 FR 45288, July 31, 2012).

Costs of Compliance

    We estimate that this AD will affect 111 products of U.S. registry. 
We also estimate that it will take about 1 work-hour per product to 
comply with the basic requirements of this AD. The average labor rate 
is $85 per work-hour. Based on these figures, we estimate the cost of 
this AD to the U.S. operators to be $9,435, 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.
    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 http://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 (77 FR 45288, July 31, 2012), 
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

    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:

2013-03-08 Bombardier, Inc.: Amendment 39-17343. Docket No. FAA-
2012-0725; Directorate Identifier 2011-NM-207-AD.

(a) Effective Date

    This airworthiness directive (AD) becomes effective March 19, 
2013.

(b) Affected ADs

    None.

(c) Applicability

    (1) This AD applies to the airplane models specified in 
paragraphs (c)(1)(i), (c)(1)(ii), (c)(1)(iii), and (c)(1)(iv) of 
this AD, certificated in any category.
    (i) Bombardier, Inc. Model CL-600-1A11 (CL-600), serial numbers 
1004 through 1085 inclusive.
    (ii) Bombardier, Inc. Model CL-600-2A12 (CL-601), serial numbers 
3001 through 3066 inclusive.
    (iii) Bombardier, Inc. Model CL-600-2B16 (CL-601-3A and CL-601-
3R Variants), serial numbers 5001 through 5194 inclusive.
    (iv) Bombardier, Inc. Model CL-600-2B16 (CL-604 Variants), 
serial numbers 5301 through 5665 inclusive, and 5701 and subsequent.
    (2) This AD requires revisions to certain operator maintenance 
documents to include new inspections. Compliance with these 
inspections is required by 14 CFR 91.403(c). For airplanes that have 
been previously modified, altered, or repaired in the areas 
addressed by these inspections, the operator may not be able to 
accomplish the inspections described in the revisions. In this 
situation, to comply with 14 CFR 91.403(c), the operator must 
request approval for an alternative method of compliance according 
to paragraph (j) of this AD. The request should include a 
description of changes to the required inspections that will ensure 
the continued damage tolerance of the affected structure. The FAA 
has provided guidance for this determination in FAA Advisory 
Circular (AC) 25.1529-1A, dated November 20, 2007 (http://rgl/
Regulatory--and--Guidance--Library/rgAdvisoryCircular.nsf/0/
E4111B5537E0B345862573B0006FA23B?OpenDocument).

(d) Subject

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

(e) Reason

    This AD was prompted by reports of cracking found on the upper 
and lower Web of the engine support beam. We are issuing this AD to 
detect and correct fatigue cracking of the engine support beam, 
which could result in failure of the engine support beam and affect 
the structural integrity of the airplane.

(f) Compliance

    You are responsible for having the actions required by this AD 
performed within the compliance times specified, unless the actions 
have already been done.

(g) Time Limits/Maintenance Checks (TLMC) Manual Revision

    Within 60 days after the effective date of this AD, revise the 
maintenance program to incorporate the applicable information 
specified in paragraphs (g)(1) through (g)(4) of this AD.

    Note 1 to paragraph (g) of this AD: The maintenance program 
revision required by paragraph (g) of this AD may be done by 
inserting a copy of Bombardier Temporary Revision (TR) 5-151, TR 5-
250, TR 5-261, and TR 5-2-47 or TR 5-2-9, all dated May 31, 2011, 
into the applicable TLMC manual. When the applicable TR has been 
included in general revisions of the TLMC manual, the general 
revisions may be inserted in the TLMC manual, provided the relevant 
information in the general revision is identical to that in the 
applicable TR specified in paragraphs (g)(1) through (g)(4) of this 
AD.

    (1) For Model CL-600-1A11 (CL-600) airplanes: Task 53-10-00-198, 
Torque Box, specified in Canadair Challenger TR 5-151, dated May 31, 
2011, to the Canadair Challenger TLMC Manual, PSP 605.
    (2) For Model CL-600-2A12 (CL-601 Variant) airplanes: Task 53-
10-00-198, Engine Support Beam, specified in Canadair Challenger TR 
5-250, dated May 31, 2011, to the Canadair Challenger TLMC Manual, 
PSP 601-5.
    (3) For Model CL-600-2B16 (CL-601-3A and CL-601-3B Variant) 
airplanes: Task 53-

[[Page 9785]]

10-00-198, Engine Support Beam, specified in Canadair Challenger TR 
5-261, dated May 31, 2011, to the Canadair Challenger TLMC Manual, 
PSP 601A-5.
    (4) For Model CL-600-2B16 (CL-604 Variant) airplanes: Task 53-
30-00-155, Detailed Inspection of the Engine Support Beam, specified 
in Bombardier Challenger 604 TR 5-2-47, dated May 31, 2011, to the 
Bombardier Challenger 604 TLMC Manual; or Task 53-30-00-155, 
Detailed Inspection of the Engine Support Beam, specified in 
Bombardier Challenger 605 TR 5-2-9, dated May 31, 2011, to the 
Bombardier Challenger 605 TLMC Manual.

(h) Initial Compliance Times for Inspections

    The initial compliance time for the inspections specified in the 
temporary revisions specified in paragraphs (g)(1) through (g)(4) of 
this AD is before the accumulation of 7,800 total flight cycles, or 
within 12 months after the effective date of this AD, whichever 
occurs later.

(i) No Alternative Actions or Intervals

    After accomplishing the revision 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) of this AD.

(j) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York Aircraft Certification Office, 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, 
New York 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) 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 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.

(k) Related Information

    Refer to MCAI Canadian Airworthiness Directive CF-2011-33, dated 
August 16, 2011, and the temporary revisions specified in paragraphs 
(g)(1) through (g)(4) of this AD, for related information.

(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 the AD specifies otherwise.
    (i) Canadair Challenger Temporary Revision 5-151, dated May 31, 
2011, to the Canadair Challenger Time Limits/Maintenance Checks 
Manual, PSP 605.
    (ii) Canadair Challenger Temporary Revision 5-250, dated May 31, 
2011, to the Canadair Challenger Time Limits/Maintenance Checks 
Manual, PSP 601-5.
    (iii) Canadair Challenger Temporary Revision 5-261, dated May 
31, 2011, to the Canadair Challenger Time Limits/Maintenance Checks 
Manual, PSP 601A-5.
    (iv) Bombardier Challenger 604 Temporary Revision 5-2-47, dated 
May 31, 2011, to the Bombardier Challenger 604 Time Limits/
Maintenance Checks Manual.
    (v) Bombardier Challenger 605 Temporary Revision 5-2-9, dated 
May 31, 2011, to the Bombardier Challenger 605 Time Limits/
Maintenance Checks Manual.
    (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 review copies of the 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 January 30, 2013.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2013-02724 Filed 2-11-13; 8:45 am]
BILLING CODE 4910-13-P

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