82 FR 39341 - Airworthiness Directives; Bombardier, Inc., Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 82, Issue 159 (August 18, 2017)

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.

[Federal Register Volume 82, Number 159 (Friday, August 18, 2017)]
[Rules and Regulations]
[Pages 39341-39344]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-15484]


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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 [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-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

[[Page 39342]]

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

[[Page 39343]]

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

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):

2017-15-08 Bombardier, Inc.: Amendment 39-18968; Docket No. FAA-
2017-0699; Directorate Identifier 2017-NM-004-AD.

(a) Effective Date

    This AD becomes effective September 5, 2017.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc., Model CL-600-2E25 (Regional 
Jet Series 1000) airplanes, certificated in any category, serial 
numbers 19001 through 19048 inclusive.

(d) Subject

    Air Transport Association (ATA) of America Code 36, Pneumatic.

(e) Reason

    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 prevent a bleed air leak from exceeding the 
maximum permitted leakage rate, which if not sensed by the detection 
system, could cause hot air impingement to damage the adjacent 
structure and system components or create a fire hazard.

(f) Compliance

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

(g) Modification

    At the earlier of the times specified in paragraphs (g)(1) and 
(g)(2) of this AD: Modify the bleed-air duct and detection system, 
in accordance with the Accomplishment Instructions of Bombardier 
Service Bulletin 670BA-36-022, Revision B, dated December 20, 2016.
    (1) Within 6,600 flight hours or 32 months, whichever occurs 
first after the effective date of this AD.
    (2) Within the next 10,000-flight-hours scheduled maintenance 
check after the effective date of this AD.

(h) Maintenance or Inspection Program Revision

    Within 30 days after the effective date of this AD: Revise the 
maintenance or inspection program, as applicable, by incorporating 
the service information specified in figure 1 to paragraph (h) of 
this AD. The initial compliance time for tasks 28-12-00-601 and 28-
12-00-602 is at the later of the applicable times specified in the 
service information specified in figure 1 to paragraph (h) of this 
AD, or within 30 days after the effective date of this AD, whichever 
occurs later. The initial compliance times for tasks 25-85-00-101, 
36-20-00-101, and 36-20-00-102 are specified in Figure 2 to 
paragraph (h) of this AD. When these temporary revisions (TRs) have 
been included in general revisions of the maintenance requirement 
manual (MRM), the general revisions may be inserted in the MRM, 
provided the relevant information in the general revision is 
identical to the TRs specified in figure 1 to paragraph (h) of this 
AD.

               Figure 1 to Paragraph (h) of This AD--Temporary Revisions Maintenance Requirements
----------------------------------------------------------------------------------------------------------------
                                                              Maintenance
                                                             requirements
           Temporary revision                 Task No.       manual (MRM)               Revision date
                                                            part 2 section
----------------------------------------------------------------------------------------------------------------
ALI-0553...............................       25-85-00-101            1-25  August 19, 2016.
ALI-0554...............................       36-20-00-101            1-36  August 19, 2016.
ALI-0555...............................       36-20-00-102            1-36  August 19, 2016.
ALI-0556...............................       28-12-00-601            4-28  August 19, 2016.
ALI-0557...............................       28-12-00-602            4-28  August 19, 2016.
----------------------------------------------------------------------------------------------------------------


     Figure 2 to Paragraph (h) of This AD--Initial Compliance Times
------------------------------------------------------------------------
 
------------------------------------------------------------------------
              Task No.                Initial compliance time (whichever
                                                 occurs later)
                                    ------------------------------------
25-85-00-101.......................  Before the         Within 30 days
                                      accumulation of    after the
                                      8,000 total        effective date
                                      flight hours.      of this AD.
36-20-00-101.......................  Before the         Within 30 days
                                      accumulation of    after the
                                      10,000 total       effective date
                                      flight hours.      of this AD.
36-20-00-102.......................  Before the         Within 30 days
                                      accumulation of    after the
                                      10,000 total       effective date
                                      flight hours.      of this AD.
------------------------------------------------------------------------

(i) No Alternative Actions or Intervals

    After the maintenance or inspection program has been revised, as 
required by paragraph (h) 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.

(j) Credit for Previous Actions

    This paragraph provides credit for actions required by paragraph 
(g) of this AD, if those actions were performed before the effective 
date of this AD using Bombardier Service

[[Page 39344]]

Bulletin 670BA-36-022, dated May 30, 2016; or Bombardier Service 
Bulletin 670BA-36-022, Revision A, dated September 16, 2016.

(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 (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 manager of 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-2016-35, dated November 
16, 2016, for related information. You may examine the MCAI on the 
Internet at http://www.regulations.gov by searching for and locating 
Docket No. FAA-2017-0699.
    (2) For more information about this AD, contact Joseph 
Catanzaro, Aerospace Engineer, Propulsion and Services Branch, ANE-
173, FAA, New York ACO, 1600 Stewart Avenue, Suite 410, Westbury, NY 
11590; telephone 516-228-7366; fax 516-794-5531.
    (3) Service information identified in this AD that is not 
incorporated by reference is available at the addresses specified in 
paragraphs (m)(3) and (m)(4) of this AD.

(m) 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) Bombardier Service Bulletin 670BA-36-022, Revision B, dated 
December 20, 2016.
    (ii) Bombardier CRJ Series Regional Jet Airworthiness 
Limitations Temporary Revision ALI-0553, dated August 19, 2016.
    (iii) Bombardier CRJ Series Regional Jet Airworthiness 
Limitations Temporary Revision ALI-0554, dated August 19, 2016.
    (iv) Bombardier CRJ Series Regional Jet Airworthiness 
Limitations Temporary Revision ALI-0555, dated August 19, 2016.
    (v) Bombardier CRJ Series Regional Jet Airworthiness Limitations 
Temporary Revision ALI-0556, dated August 19, 2016.
    (vi) Bombardier CRJ Series Regional Jet Airworthiness 
Limitations Temporary Revision ALI-0557, dated August 19, 2016.
    (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.
    (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 July 13, 2017.
Dionne Palermo,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2017-15484 Filed 8-17-17; 8:45 am]
 BILLING CODE 4910-13-P