DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2017-0699; Directorate Identifier 2017-NM-004-AD;
Amendment 39-18968; AD 2017-15-08]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc., Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule; request for comments.
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SUMMARY: We are adopting a new airworthiness directive (AD) for
certain
Bombardier, Inc., Model CL-600-2E25 (Regional Jet Series 1000)
airplanes. This AD requires modifying the bleed-air duct and detection
system; and revising the maintenance or inspection program, as
applicable. This AD was prompted by a report of a possibility that the
shrouds of the high pressure bleed air ducts could deteriorate and
their maximum permitted leakage rate could be exceeded. We are issuing
this AD to address the unsafe condition on these products.
DATES: This AD becomes effective September 5, 2017.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of September 5,
2017.
We must receive comments on this AD by October 2, 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: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
For service information identified in this final rule, 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 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. It is also available on the Internet at http://www.
regulations.gov by searching for and locating Docket No. FAA-2017-0699.
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-
0699; 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 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: Joseph Catanzaro, Aerospace Engineer,
Propulsion and Services Branch, ANE-173, FAA, New York Aircraft
Certification Office (ACO), 1600 Stewart Avenue, Suite 410, Westbury,
NY 11590; telephone 516-228-7366; fax 516-794-5531.
SUPPLEMENTARY INFORMATION:
Discussion
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued Canadian Airworthiness Directive CF-
2016-35, dated November 16, 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-
2E25 (Regional Jet Series 1000) airplanes. The MCAI states:
It is possible for the shrouds of the High Pressure (HP) bleed
air ducts located in the main wheel wells and overwing areas to
deteriorate and consequently, their maximum permitted leakage rate
could be exceeded. If a significant bleed air leak is not sensed by
the detection system, hot air impingement may cause damage to the
adjacent structure and system components or create a fire hazard.
This [Canadian] AD is issued to mandate a modification of the
bleed-air duct and detection system, as well as a revision of the
Airworthiness Limitation tasks to correspond with this modification.
You may examine the MCAI on the Internet at http://www.regulations.gov
by
searching for and locating Docket No. FAA-2017-0699.
Related Service Information Under 1 CFR Part 51
Bombardier, Inc. has issued Bombardier Service Bulletin 670BA-36-
022, Revision B, dated December 20, 2016. The service information
describes modifying the bleed-air duct and detection system.
Bombardier, Inc. has issued the following service information.
Bombardier CRJ Series Regional Jet Airworthiness
Limitations Temporary Revision ALI-0553, dated August 19, 2016, which
describes an airworthiness limitation task for a detailed inspection of
the protection jackets (shields) and insulating blankets located on top
of the center wing and fuel tank and fuel vent lines for condition and
security.
Bombardier CRJ Series Regional Jet Airworthiness
Limitations Temporary Revision ALI-0554, dated August 19, 2016, which
describes an airworthiness limitation task for a functional check of
the bleed air duct shrouds.
Bombardier CRJ Series Regional Jet Airworthiness
Limitations Temporary Revision ALI-0555, dated August 19, 2016, which
describes an airworthiness limitation task for a detailed inspection of
the bleed air duct coupling covers and detection manifolds.
Bombardier CRJ Series Regional Jet Airworthiness
Limitations Temporary Revision ALI-0556, dated August 19, 2016, which
describes an airworthiness limitation task for a detailed inspection of
the overwing shield and the protection jackets for condition and
security.
Bombardier CRJ Series Regional Jet Airworthiness
Limitations Temporary Revision ALI-0557, dated August 19, 2016, which
describes an airworthiness limitation task for a detailed inspection of
the vent boot protection jackets for condition and security.
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 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 issuing this AD because we
evaluated all pertinent information and determined the unsafe condition
exists and is likely to exist or develop on other products of the same
type design.
This AD requires 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 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 AD. The request
should include a description of changes to the required inspections
that will ensure the continued operational safety of the airplane.
FAA's Determination of the Effective Date
Since there are currently no domestic operators of this product,
notice and opportunity for public comment before issuing this AD are
unnecessary.
Comments Invited
This AD is a final rule that involves requirements affecting flight
safety, and we did not precede it by notice and opportunity for public
comment. We invite you to send any written relevant data, views, or
arguments about this AD. Send your comments to an address listed under
the ADDRESSES section. Include ``Docket No. FAA-2017-0699; Directorate
Identifier 2017-NM-004-AD'' at the beginning of your comments. We
specifically invite comments on the overall regulatory, economic,
environmental, and energy aspects of this AD. We will consider all
comments received by the closing date and may amend this 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 AD.
Costs of Compliance
We estimate that this AD affects 0 airplanes of U.S. registry.
We also estimate that it will take about 91 work-hours per product
to comply with the basic requirements of this AD. The average labor
rate is $85 per work-hour. Required parts cost are not available. Based
on these figures, we estimate the cost of this AD on U.S. operators to
be $0, or $7,735 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.
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
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):
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