[Federal Register Volume 82, Number 108 (Wednesday, June 7, 2017)]
[Proposed Rules]
[Pages 26403-26406]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-11001]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0511; Directorate Identifier 2016-NM-176-AD]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc. Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain Bombardier, Inc. Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-
601 Variant), and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604 
Variants) airplanes. This proposed AD was prompted by a new life 
limitation that has been introduced for the side brace fitting shaft 
and side brace-to-airplane fitting pin of the main landing gear (MLG). 
This proposed AD would require revising the maintenance or inspection 
program. This proposed AD would also require an inspection to identify 
the serial number, to serialize, and to record the accumulated life of 
the side brace fitting shaft of the MLG. We are proposing this AD to 
address the unsafe condition on these products.

DATES: We must receive comments on this proposed AD by July 24, 2017.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this NPRM, contact 
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec 
H4S 1Y9, Canada; Widebody Customer Response Center North America toll-
free telephone 1-866-538-1247 or direct-dial telephone 1-514-855-2999; 
fax 514-855-7401; email [email protected]; Internet http://www.bombardier.com. You may view this referenced service information at 
the FAA, Transport Airplane

[[Page 26404]]

Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the 
availability of this material at the FAA, call 425-227-1221.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0511; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this proposed AD, the regulatory evaluation, any comments 
received, and other information. The street address for the Docket 
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: 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.

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2017-0511; 
Directorate Identifier 2016-NM-176-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD based on those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian Airworthiness Directive CF-
2016-17R2, dated June 29, 2016 (referred to after this as the Mandatory 
Continuing Airworthiness Information, or ``the MCAI''), to correct an 
unsafe condition for certain Bombardier, Inc. Model CL-600-1A11 (CL-
600), CL-600-2A12 (CL-601 Variant), and CL-600-2B16 (CL-601-3A, CL-601-
3R, and CL-604 Variants) airplanes. The MCAI states:

    Based on in-service experience, a new life limitation has been 
introduced for the following side brace fitting shaft part numbers:
     600-10237-1/-5
     600-10237-3
     601R10237-1/-3
    In order to facilitate identification and tracking, the 
component must be identified and serialized. Bombardier has revised 
the Time Limits/Maintenance Checks (TLMC) Manual to include new life 
limits and issued Service Bulletins (SB) for serialization of the 
affected parts.
    The original version of this [Canadian] AD was issued to mandate 
the incorporation of the new TLMC life limits as well as 
identification and serialization of the affected parts. The revision 
1 of this [Canadian] AD was issued * * * June [10,] 2016 to correct 
a typographic error in Table A of the Corrective Actions section. 
The revision 2 of this [Canadian] AD is being issued to correct/
update the TLMC data in Table A of the Corrective Actions section.

    Required actions include an inspection to identify the serial 
number, to serialize, and to record the accumulated life of the side 
brace fitting shaft of the MLG. The unsafe condition is the loss of 
structural integrity of the affected part. You may examine the MCAI in 
the AD docket on the Internet at http://www.regulations.gov by 
searching for and locating Docket No. FAA-2017-0511.

Related Service Information Under 1 CFR Part 51

    We reviewed the following service information. The service 
information describes the life limits for the side brace fitting shaft 
and side brace-to-airplane fitting pin of the MLG. The service 
information is distinct since it applies to different airplane models 
in different configurations.
     Chapter 5-10-10, Airworthiness Limitations, of the 
Bombardier Challenger PSP 605 Time Limits/Maintenance Checks, Revision 
37, dated April 29, 2016.
     Chapter 5-10-10, Airworthiness Limitations, of the 
Bombardier Challenger PSP 601-5 Time Limits/Maintenance Checks, 
Revision 42, dated April 22, 2014.
     Chapter 5-10-10, Airworthiness Limitations, of the 
Bombardier Challenger PSP 601A-5 Time Limits/Maintenance Checks, 
Revision 38, dated April 22, 2014.
     Chapter 5-10-10, Airworthiness Limitations, of Part 2, of 
the Bombardier Challenger CL-604 Time Limits/Maintenance Checks, 
Revision 26, dated June 9, 2016.
     Chapter 5-10-10, Airworthiness Limitations, of Part 2, of 
the Bombardier Challenger CL-605 Time Limits/Maintenance Checks, 
Revision 14, dated June 9, 2016.
    We have also reviewed the following service information. The 
service information describes procedures for an inspection to identify 
the serial number, to serialize, and to record the accumulated life of 
the side brace fitting shaft of the MLG. The service bulletins are 
distinct since they apply to different airplane models.
     Bombardier Service Bulletin 600-0768, dated September 9, 
2014.
     Bombardier Service Bulletin 601-0636, Revision 01, dated 
May 10, 2016.
     Bombardier Service Bulletin 604-57-005, dated September 9, 
2014.
     Bombardier Service Bulletin 605-57-003, dated September 9, 
2014.
    This service information is reasonably available because the 
interested parties have access to it through their normal course of 
business or by the means identified in the ADDRESSES section.

FAA's Determination and Requirements of This Proposed AD

    This product has been approved by the aviation authority of another 
country, and is approved for operation in the United States. Pursuant 
to our bilateral agreement with the State of Design Authority, we have 
been notified of the unsafe condition described in the MCAI and service 
information referenced above. We are proposing this AD because we 
evaluated all pertinent information and determined an unsafe condition 
exists and is likely to exist or develop on other products of the same 
type design.
    This proposed AD would require revisions to certain operator 
maintenance documents to include new actions (e.g., inspections). 
Compliance with these actions is required by 14 CFR 91.403(c). For 
airplanes that have been previously modified, altered, or repaired in 
the areas addressed by this proposed AD, the operator may not be able 
to accomplish the actions 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 
(k)(1) of this proposed AD. The request should include a description of 
changes to the required actions that will ensure the continued 
operational safety of the airplane.

Costs of Compliance

    We estimate that this proposed AD affects 133 airplanes of U.S. 
registry.
    We estimate the following costs to comply with this proposed AD:

[[Page 26405]]



                                                 Estimated Costs
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                                                                                     Cost  per     Cost on U.S.
               Action                         Labor cost            Parts cost        product        operators
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Maintenance or inspection program    1 work-hour x $85 per hour               $0             $85         $11,305
 revision.                            = $85.
Inspection, identification,          1 work-hour x $85 per hour               33             118          15,694
 serialization, and recording.        = $85.
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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 proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would 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 proposed 
regulation:
    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.

List of Subjects in 14 CFR Part 39

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

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 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 airworthiness 
directive (AD):

    Bombardier, Inc.: Docket No. FAA-2017-0511; Directorate 
Identifier 2016-NM-176-AD.

(a) Comments Due Date

    We must receive comments by July 24, 2017.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to the airplanes specified in paragraphs (c)(1) 
through (c)(3) of this AD, certificated in any category.
    (1) Bombardier, Inc. Model CL-600-1A11 (CL-600) airplanes, 
serial numbers 1004 through 1085 inclusive.
    (2) Bombardier, Inc. Model CL-600-2A12 (CL-601 Variant) 
airplanes, serial numbers 3001 through 3066 inclusive.
    (3) Bombardier, Inc. Model CL-600-2B16 (CL-601-3A, CL-601-3R, 
and CL-604 Variants) airplanes, serial numbers 5001 through 5194 
inclusive; serial numbers 5301 through 5665 inclusive, and serial 
numbers 5701 through 5851 inclusive.

(d) Subject

    Air Transport Association (ATA) of America Code 57, Wings.

(e) Reason

    This AD was prompted by a new life limitation that has been 
introduced for the side brace fitting shaft and side brace-to-
airplane fitting pin of the main landing gear (MLG). We are issuing 
this AD to prevent the loss of structural integrity of the affected 
part.

(f) Compliance

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

(g) Revision of Maintenance or Inspection Program

    Within 30 days after the effective date of this AD, revise the 
maintenance or inspection program, as applicable, by incorporating 
the life limits for the side brace fitting shaft and side brace-to-
airplane fitting pin of the MLG, as applicable, identified in table 
1 to paragraph (g) of this AD. The initial compliance time for 
accomplishing the replacement is at the applicable time in the Time 
Limits/Maintenance Checks (TLMC) Manual revisions specified in table 
1 to paragraph (g) of this AD, or within 30 days after the effective 
date of this AD, whichever occurs later.

                                         Table 1 to Paragraph (g) of This AD--Life Limits for the Affected Parts
--------------------------------------------------------------------------------------------------------------------------------------------------------
Airplane model  (Serial Nos. (S/                                                                                            Revision
              Ns))                    Part name              Part No.           TLMC  manual No.           Chapter            No.        Revision date
--------------------------------------------------------------------------------------------------------------------------------------------------------
CL-600-1A11 (S/Ns 1004 through   MLG Side Brace-to-  600-10237-1/-5           PSP 605              5-10-10...............         37  April 29, 2016.
 1085 inclusive).                 Airplane Fitting
                                  Pin.
CL-600-2A12 (S/N 3001-3066       MLG Side Brace-to-  600-10237-3              PSP 601-5            5-10-10...............         42  April 22, 2014.
 inclusive).                      Airplane Fitting
                                  Pin.
CL-600-2B16 (S/Ns 5001-5194      MLG Side Brace-to-  600-10237-3              PSP 601A-5           5-10-10...............         38  April 22, 2014.
 inclusive).                      Airplane Fitting
                                  Pin.
CL-600-2B16 (S/Ns 5301-5665      MLG Side Brace      601R10237-1/-3           CL-604               5-10-10 (Part 2)......         26  June 9, 2016.
 inclusive).                      Fitting Shaft.
CL-600-2B16 (S/Ns 5701-5851      MLG Side Brace      601R10237-1/-3           CL-605               5-10-10 (Part 2)......         14  June 9, 2016.
 inclusive).                      Fitting Shaft.
--------------------------------------------------------------------------------------------------------------------------------------------------------


[[Page 26406]]

(h) Inspection, Serialization, and Recording of Life Limited Parts

    Within 48 months after the effective date of this AD: Inspect to 
identify the serial number, serialize, and record the accumulated 
life of the side brace fitting shaft of the MLG, as applicable, in 
accordance with the Accomplishment Instructions of the applicable 
service information in paragraphs (h)(1) through (h)(4) of this AD.
    (1) For CL-600-1A11 airplanes (S/Ns 1004 through 1085 
inclusive): Bombardier Service Bulletin 600-0768, dated September 9, 
2014.
    (2) For CL-600-2A12 (S/Ns 3001 through 3066 inclusive) and CL-
600-2B16 airplanes (S/Ns 5001 through 5194 inclusive): Bombardier 
Service Bulletin 601-0636, Revision 01, dated May 10, 2016.
    (3) For CL-600-2B16 aeroplanes (S/Ns 5301 through 5665 
inclusive): Bombardier Service Bulletin 604-57-005, dated September 
9, 2014.
    (4) For CL-600-2B16 aeroplanes (S/Ns 5701 through 5851 
inclusive): Bombardier Service Bulletin 605-57-003, dated September 
9, 2014.

(i) No Reporting Requirement

    Although the service information identified in paragraphs (h)(1) 
through (h)(4) of this AD specifies to submit certain information to 
the manufacturer, this AD does not include that requirement.

(j) No Alternative Actions and Intervals

    After the maintenance or inspection program has been revised, as 
applicable, 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 (k)(1) of this AD.

(k) 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, 
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.
    (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.

(l) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) Canadian Airworthiness Directive CF-2016-17R2, dated June 29, 
2016, for related information. This MCAI may be found in the AD 
docket on the Internet at http://www.regulations.gov by searching 
for and locating Docket No. FAA-2017-0511.
    (2) For more information about this AD, contact Aziz Ahmed, 
Aerospace Engineer, Airframe and Mechanical Systems Branch, ANE-171, 
FAA, New York ACO, 1600 Stewart Avenue, Suite 410, Westbury, NY 
11590; telephone 516-228-7329; fax 516-794-5531.
    (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; Widebody Customer Response Center 
North America toll-free telephone 1-866-538-1247 or direct-dial 
telephone 1-514-855-2999; fax 514-855-7401; email 
[email protected]; Internet http://www.bombardier.com. 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.

    Issued in Renton, Washington, on May 18, 2017.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2017-11001 Filed 6-6-17; 8:45 am]
 BILLING CODE 4910-13-P