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).
-----------------------------------------------------------------------
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 Cote-Vertu Road West, Dorval, Quebec 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 ac.yul@
aero.bombardier.com; 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.
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:
Estimated Costs
Action |
Labor cost
|
Parts cost
|
Cost per
product
|
Cost on
U.S. operators
|
Maintenance or inspection program
revision |
1 work-hour x $85 per hour =
$85 |
$0
|
$85
|
$11,305
|
Inspection, identification, serialization,
and recording |
1 work-hour x $85 per hour =
$85 |
33
|
118
|
15,694
|
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
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]
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive (AD):
|