83_FR_3958 83 FR 3939 - Airworthiness Directives; Bombardier, Inc., Airplanes

83 FR 3939 - Airworthiness Directives; Bombardier, Inc., Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 19 (January 29, 2018)

Page Range3939-3941
FR Document2018-01317

We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model DHC-8-400 series airplanes. This AD was prompted by reports that operation of fuselage doors was interrupted due to corrosion in certain door roller bearings. This AD requires a one-time detailed inspection of the bearings for corrosion, and replacement if necessary. We are issuing this AD to address the unsafe condition on these products.

Federal Register, Volume 83 Issue 19 (Monday, January 29, 2018)
[Federal Register Volume 83, Number 19 (Monday, January 29, 2018)]
[Rules and Regulations]
[Pages 3939-3941]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-01317]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0621; Product Identifier 2017-NM-049-AD; Amendment 
39-19169; AD 2018-02-16]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc., Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
Bombardier, Inc., Model DHC-8-400 series airplanes. This AD was 
prompted by reports that operation of fuselage doors was interrupted 
due to corrosion in certain door roller bearings. This AD requires a 
one-time detailed inspection of the bearings for corrosion, and 
replacement if necessary. We are issuing this AD to address the unsafe 
condition on these products.

DATES: This AD is effective March 5, 2018.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of March 5, 
2018.

ADDRESSES: For service information identified in this final rule, 
contact Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt 
Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000; 
fax 416-375-4539; email [email protected]; internet 
http://www.bombardier.com. You may view this referenced service 
information at the FAA, Transport Standards Branch, 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-2017-0621.

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-
0621; 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 AD, the regulatory evaluation, any comments received, and 
other information. The street address for the Docket Office (telephone 
800-647-5527) is Docket Management Facility, U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Aziz Ahmed, Aerospace Engineer, 
Airframe and Mechanical Systems Section, FAA, New York ACO Branch, 1600 
Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7329; 
fax 516-794-5531.

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to certain Bombardier, Inc., 
Model DHC-8-400 series airplanes. The NPRM published in the Federal 
Register on June 21, 2017 (82 FR 28269) (``the NPRM''). The NPRM was 
prompted by reports that operation of fuselage doors was interrupted 
due to corrosion in certain door roller bearings. The NPRM proposed to 
require a one-time detailed inspection of the bearings for corrosion, 
and replacement if necessary. We are issuing this AD to detect and 
correct bearing corrosion and prevent door operation interruptions that 
could inhibit safe evacuation of the airplane in an emergency.
    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian Airworthiness Directive CF-
2016-18, dated June 6, 2016 (referred to after this as the Mandatory 
Continuing Airworthiness Information, or ``the MCAI''), to correct an 
unsafe condition for certain Bombardier, Inc., Model DHC-8-400 series 
airplanes. The MCAI states:

    A number of translating fuselage door operation interruptions 
has been reported. In one case, the Aft Service door could not be 
opened. It was found that the door lift latch bearings had corroded, 
which prevented the door from opening.

[[Page 3940]]

    The translating doors are classified as emergency exits. The 
inability to open an emergency exit could inhibit evacuation in the 
event of an emergency. This [Canadian] AD is issued to mandate a 
one-time inspection of the translating door bearings to check for 
corrosion, replace bearings if required, and apply Corrosion 
Inhibiting Compound (CIC).

    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-
0621.

Comments

    We gave the public the opportunity to participate in developing 
this AD. The following presents the comments received on the NPRM and 
the FAA's response to each comment. The Air Line Pilots Association, 
International (ALPA) supported the NPRM.

Request To Remove Certain Service Information Procedures

    Horizon Air requested that we change the language in paragraph (g) 
of the proposed AD to exclude the ``Job Set-Up'' and ``Close Out'' 
sections of the Accomplishment Instructions, because accomplishing 
those sections does not correct the unsafe condition, and requiring 
them restricts an operator's ability to perform other maintenance in 
conjunction with the requirements of the AD. Horizon Air requested that 
the final rule mandate only paragraph 3.B., ``Procedure,'' of the 
Accomplishment Instructions of Bombardier Service Bulletin 84-52-88, 
dated April 14, 2016.
    We agree with the commenter's request to exclude the ``Job Set-up'' 
and ``Close Out'' sections of the Accomplishment Instructions of 
Bombardier Service Bulletin 84-52-88, dated April 14, 2016, because 
they are not required to address the unsafe condition identified in 
this AD. We have revised paragraph (g) of this AD to require only 
accomplishment of paragraph 3.B., ``Procedure,'' of the Accomplishment 
Instructions of Bombardier Service Bulletin 84-52-88, dated April 14, 
2016.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this AD with the change described previously and minor editorial 
changes. We have determined that these minor changes:
     Are consistent with the intent that was proposed in the 
NPRM for correcting the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.
    We also determined that these changes will not increase the 
economic burden on any operator or increase the scope of this AD.

Related Service Information Under 1 CFR part 51

    Bombardier has issued Service Bulletin 84-52-88, dated April 14, 
2016. This service information describes procedures for identification 
of corrosion in fuselage door bearings, replacement if necessary, and 
CIC application. 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.

Costs of Compliance

    We estimate that this AD affects 143 airplanes of U.S. registry.
    We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
               Action                         Labor cost            Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
Inspection and CIC application.....  8 work-hours x $85 per hour              $0            $680         $97,240
                                      = $680 for 3 doors.
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary replacements 
that would be required based on the results of the inspection. We have 
no way of determining the number of aircraft that might need this 
replacement:

                                        On-condition CostsEstimated Costs
----------------------------------------------------------------------------------------------------------------
                Action                            Labor cost              Parts cost        Cost per product
----------------------------------------------------------------------------------------------------------------
Replacement...........................  4 work-hours x $85 per hour =             $432  $772 per door.
                                         $340 per door.
----------------------------------------------------------------------------------------------------------------

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.
    This AD is issued in accordance with authority delegated by the 
Executive Director, Aircraft Certification Service, as authorized by 
FAA Order 8000.51C. In accordance with that order, issuance of ADs is 
normally a function of the Compliance and Airworthiness Division, but 
during this transition period, the Executive Director has delegated the 
authority to issue ADs applicable to transport category airplanes to 
the Director of the System Oversight Division.

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:

[[Page 3941]]

    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):

2018-02-16 Bombardier, Inc.: Amendment 39-19169; Docket No. FAA-
2017-0621; Product Identifier 2017-NM-049-AD.

(a) Effective Date

    This AD is effective March 5, 2018.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc., Model DHC-8-400, -401, and 
-402 airplanes, certificated in any category, serial numbers 4001 
and 4003 through 4488 inclusive, except those incorporating 
Bombardier ModSum IS4Q5200050.

(d) Subject

    Air Transport Association (ATA) of America Code 52, Doors.

(e) Reason

    This AD was prompted by reports of interrupted operation of 
translating fuselage doors caused by corrosion in the door lift and 
latch shaft roller bearings. We are issuing this AD to detect and 
correct bearing corrosion and prevent door operation interruptions 
that could inhibit safe evacuation of the airplane in an emergency.

(f) Compliance

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

(g) Inspection and Replacement of Bearings

    Within 6,000 flight hours or 36 months after the effective date 
of this AD, whichever occurs earlier, do a detailed visual 
inspection of all translating fuselage door lift and latch shaft 
roller bearings for signs of corrosion, damaged seals, and loss of 
lubricant; replace any corroded bearings; and apply corrosion-
inhibiting compound (CIC); in accordance with paragraph 3.B., 
``Procedure,'' of the Accomplishment Instructions of Bombardier 
Service Bulletin 84-52-88, dated April 14, 2016.

(h) 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 Bulletin 84-52-85, dated 
September 23, 2015; or Bombardier Service Bulletin 84-52-85, 
Revision A, dated January 22, 2016.

(i) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York ACO Branch, 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 certification 
office, send it to ATTN: Program Manager, Continuing Operational 
Safety, FAA, New York ACO Branch, 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 
Branch, 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.

(j) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) Canadian Airworthiness Directive CF-2016-18, dated June 6, 
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-2017-0621.
    (2) For more information about this AD, contact Aziz Ahmed, 
Aerospace Engineer, Airframe and Mechanical Systems Section, FAA, 
New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 
11590; telephone 516-228-7329; 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 (k)(3) and (k)(4) of this AD.

(k) 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 84-52-88, dated April 14, 2016.
    (ii) Reserved.
    (3) For service information identified in this AD, contact 
Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt 
Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000; 
fax 416-375-4539; email [email protected]; internet 
http://www.bombardier.com.
    (4) You may view this service information at the FAA, Transport 
Standards Branch, 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 17, 2018.
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2018-01317 Filed 1-26-18; 8:45 am]
 BILLING CODE 4910-13-P



                                                                Federal Register / Vol. 83, No. 19 / Monday, January 29, 2018 / Rules and Regulations                                               3939

                                              of this AD are presented in flight cycles                 (5) You may view this service information            for and locating Docket No. FAA–2017–
                                              (landings). If the total flight cycles have not         that is incorporated by reference at the               0621.
                                              been kept, multiply the total number of                 National Archives and Records
                                              airplane hours time-in-service (TIS) by 0.75            Administration (NARA). For information on              Examining the AD Docket
                                              to calculate the cycles. For the purposes of            the availability of this material at NARA, call
                                              this AD:                                                202–741–6030, or go to: http://                          You may examine the AD docket on
                                                 (i) 100 hours TIS × .75 = 75 cycles; and             www.archives.gov/federal-register/cfr/ibr-             the internet at http://
                                                 (ii) 1,000 hours TIS × .75 = 750 cycles.             locations.html.                                        www.regulations.gov by searching for
                                                                                                                                                             and locating Docket No. FAA–2017–
                                              (g) Other FAA AD Provisions                               Issued in Kansas City, Missouri, on January
                                                                                                      16, 2018.                                              0621; or in person at the Docket
                                                 The following provisions also apply to this                                                                 Management Facility between 9 a.m.
                                              AD:                                                     Melvin J. Johnson,
                                                                                                                                                             and 5 p.m., Monday through Friday,
                                                 (1) Alternative Methods of Compliance                Deputy Director, Policy & Innovation Division,
                                              (AMOCs): The Manager, Small Airplane                                                                           except Federal holidays. The AD docket
                                                                                                      Aircraft Certification Service.
                                              Standards Branch, FAA, has the authority to                                                                    contains this AD, the regulatory
                                                                                                      [FR Doc. 2018–01310 Filed 1–26–18; 8:45 am]
                                              approve AMOCs for this AD, if requested                                                                        evaluation, any comments received, and
                                                                                                      BILLING CODE 4910–13–P                                 other information. The street address for
                                              using the procedures found in 14 CFR 39.19.
                                              Send information to ATTN: Doug Rudolph,                                                                        the Docket Office (telephone 800–647–
                                              Aerospace Engineer, FAA, Small Airplane                                                                        5527) is Docket Management Facility,
                                              Standards Branch, 901 Locust, Room 301,                 DEPARTMENT OF TRANSPORTATION
                                                                                                                                                             U.S. Department of Transportation,
                                              Kansas City, Missouri 64106; telephone:
                                                                                                      Federal Aviation Administration                        Docket Operations, M–30, West
                                              (816) 329–4059; fax: (816) 329–4090; email:
                                              doug.rudolph@faa.gov. Before using any                                                                         Building Ground Floor, Room W12–140,
                                              approved AMOC on any airplane to which                  14 CFR Part 39                                         1200 New Jersey Avenue SE,
                                              the AMOC applies, notify your appropriate                                                                      Washington, DC 20590.
                                              principal inspector (PI) in the FAA Flight              [Docket No. FAA–2017–0621; Product
                                                                                                                                                             FOR FURTHER INFORMATION CONTACT: Aziz
                                              Standards District Office (FSDO), or lacking            Identifier 2017–NM–049–AD; Amendment
                                                                                                      39–19169; AD 2018–02–16]                               Ahmed, Aerospace Engineer, Airframe
                                              a PI, your local FSDO.
                                                                                                                                                             and Mechanical Systems Section, FAA,
                                                 (2) Contacting the Manufacturer: For any             RIN 2120–AA64
                                              requirement in this AD to obtain corrective                                                                    New York ACO Branch, 1600 Stewart
                                              actions from a manufacturer, the action must                                                                   Avenue, Suite 410, Westbury, NY
                                                                                                      Airworthiness Directives; Bombardier,                  11590; telephone 516–228–7329; fax
                                              be accomplished using a method approved
                                                                                                      Inc., Airplanes                                        516–794–5531.
                                              by the Manager, Small Airplane Standards
                                              Branch, FAA; or the European Aviation                   AGENCY:  Federal Aviation                              SUPPLEMENTARY INFORMATION:
                                              Safety Agency (EASA).                                   Administration (FAA), Department of
                                                                                                      Transportation (DOT).                                  Discussion
                                              (h) Related Information
                                                (1) Refer to MCAI EASA AD 2017–0157,                  ACTION: Final rule.                                       We issued a notice of proposed
                                              dated August 25, 2017, and, for related                                                                        rulemaking (NPRM) to amend 14 CFR
                                              information. The MCAI can be found in the               SUMMARY:    We are adopting a new                      part 39 by adding an AD that would
                                              AD docket on the internet at: https://                  airworthiness directive (AD) for certain               apply to certain Bombardier, Inc., Model
                                              www.regulations.gov/document?D=FAA-                     Bombardier, Inc., Model DHC–8–400                      DHC–8–400 series airplanes. The NPRM
                                              2017-0993-0002.                                         series airplanes. This AD was prompted                 published in the Federal Register on
                                              (i) Material Incorporated by Reference                  by reports that operation of fuselage                  June 21, 2017 (82 FR 28269) (‘‘the
                                                                                                      doors was interrupted due to corrosion                 NPRM’’). The NPRM was prompted by
                                                 (1) The Director of the Federal Register
                                              approved the incorporation by reference
                                                                                                      in certain door roller bearings. This AD               reports that operation of fuselage doors
                                              (IBR) of the service information listed in this         requires a one-time detailed inspection                was interrupted due to corrosion in
                                              paragraph under 5 U.S.C. 552(a) and 1 CFR               of the bearings for corrosion, and                     certain door roller bearings. The NPRM
                                              part 51.                                                replacement if necessary. We are issuing               proposed to require a one-time detailed
                                                 (2) You must use this service information            this AD to address the unsafe condition                inspection of the bearings for corrosion,
                                              as applicable to do the actions required by             on these products.                                     and replacement if necessary. We are
                                              this AD, unless the AD specifies otherwise.             DATES: This AD is effective March 5,
                                                 (i) BAE Systems British Aerospace                                                                           issuing this AD to detect and correct
                                              Jetstream Series 3100 and 3200 Service
                                                                                                      2018.                                                  bearing corrosion and prevent door
                                              Bulletin 32–JA981042 Rev 9, dated July 11,
                                                                                                         The Director of the Federal Register                operation interruptions that could
                                              2017.                                                   approved the incorporation by reference                inhibit safe evacuation of the airplane in
                                                 (ii) Reserved.                                       of a certain publication listed in this AD             an emergency.
                                                 (3) For BAE Systems (Operations) Limited             as of March 5, 2018.                                      Transport Canada Civil Aviation
                                              service information identified in this AD,              ADDRESSES: For service information                     (TCCA), which is the aviation authority
                                              contact BAE Systems (Operations) Limited,               identified in this final rule, contact
                                              Customer Information Department, Prestwick
                                                                                                                                                             for Canada, has issued Canadian
                                                                                                      Bombardier, Inc., Q-Series Technical                   Airworthiness Directive CF–2016–18,
                                              International Airport, Ayrshire, KA9 2RW,
                                              Scotland, United Kingdom; telephone: +44
                                                                                                      Help Desk, 123 Garratt Boulevard,                      dated June 6, 2016 (referred to after this
                                              1292 675207; fax: +44 1292 675704; email:               Toronto, Ontario M3K 1Y5, Canada;                      as the Mandatory Continuing
                                              RApublications@baesystems.com; internet:                telephone 416–375–4000; fax 416–375–                   Airworthiness Information, or ‘‘the
                                              http://www.baesystems.com/Businesses/                   4539; email thd.qseries@                               MCAI’’), to correct an unsafe condition
                                              RegionalAircraft/.                                      aero.bombardier.com; internet http://                  for certain Bombardier, Inc., Model
                                                 (4) You may view this service information            www.bombardier.com. You may view                       DHC–8–400 series airplanes. The MCAI
sradovich on DSK3GMQ082PROD with RULES




                                              at FAA, Policy and Innovation Division, 901             this referenced service information at
                                              Locust, Kansas City, Missouri 64106. For
                                                                                                                                                             states:
                                                                                                      the FAA, Transport Standards Branch,
                                              information on the availability of this                                                                          A number of translating fuselage door
                                              material at the FAA, call 816–329–4148. In
                                                                                                      1601 Lind Avenue SW, Renton, WA. For                   operation interruptions has been reported. In
                                              addition, you can access this service                   information on the availability of this                one case, the Aft Service door could not be
                                              information on the internet at http://                  material at the FAA, call 425–227–1221.                opened. It was found that the door lift latch
                                              www.regulations.gov by searching for and                It is also available on the internet at                bearings had corroded, which prevented the
                                              locating Docket No. FAA–2017–0993.                      http://www.regulations.gov by searching                door from opening.



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                                              3940                 Federal Register / Vol. 83, No. 19 / Monday, January 29, 2018 / Rules and Regulations

                                                The translating doors are classified as                   requiring them restricts an operator’s                   • Are consistent with the intent that
                                              emergency exits. The inability to open an                   ability to perform other maintenance in                was proposed in the NPRM for
                                              emergency exit could inhibit evacuation in                  conjunction with the requirements of                   correcting the unsafe condition; and
                                              the event of an emergency. This [Canadian]
                                              AD is issued to mandate a one-time
                                                                                                          the AD. Horizon Air requested that the                   • Do not add any additional burden
                                              inspection of the translating door bearings to              final rule mandate only paragraph 3.B.,                upon the public than was already
                                              check for corrosion, replace bearings if                    ‘‘Procedure,’’ of the Accomplishment                   proposed in the NPRM.
                                              required, and apply Corrosion Inhibiting                    Instructions of Bombardier Service                       We also determined that these
                                              Compound (CIC).                                             Bulletin 84–52–88, dated April 14,                     changes will not increase the economic
                                                You may examine the MCAI in the                           2016.                                                  burden on any operator or increase the
                                              AD docket on the internet at http://                           We agree with the commenter’s
                                                                                                                                                                 scope of this AD.
                                              www.regulations.gov by searching for                        request to exclude the ‘‘Job Set-up’’ and
                                              and locating Docket No. FAA–2017–                           ‘‘Close Out’’ sections of the                          Related Service Information Under
                                              0621.                                                       Accomplishment Instructions of                         1 CFR part 51
                                                                                                          Bombardier Service Bulletin 84–52–88,
                                              Comments                                                                                                             Bombardier has issued Service
                                                                                                          dated April 14, 2016, because they are
                                                                                                                                                                 Bulletin 84–52–88, dated April 14,
                                                We gave the public the opportunity to                     not required to address the unsafe
                                                                                                                                                                 2016. This service information describes
                                              participate in developing this AD. The                      condition identified in this AD. We
                                                                                                                                                                 procedures for identification of
                                              following presents the comments                             have revised paragraph (g) of this AD to
                                                                                                                                                                 corrosion in fuselage door bearings,
                                              received on the NPRM and the FAA’s                          require only accomplishment of
                                                                                                                                                                 replacement if necessary, and CIC
                                              response to each comment. The Air Line                      paragraph 3.B., ‘‘Procedure,’’ of the
                                                                                                                                                                 application. This service information is
                                              Pilots Association, International (ALPA)                    Accomplishment Instructions of
                                                                                                                                                                 reasonably available because the
                                              supported the NPRM.                                         Bombardier Service Bulletin 84–52–88,
                                                                                                                                                                 interested parties have access to it
                                                                                                          dated April 14, 2016.
                                              Request To Remove Certain Service                                                                                  through their normal course of business
                                              Information Procedures                                      Conclusion                                             or by the means identified in the
                                                Horizon Air requested that we change                        We reviewed the relevant data,                       ADDRESSES section.
                                              the language in paragraph (g) of the                        considered the comments received, and                  Costs of Compliance
                                              proposed AD to exclude the ‘‘Job Set-                       determined that air safety and the
                                              Up’’ and ‘‘Close Out’’ sections of the                      public interest require adopting this AD                 We estimate that this AD affects 143
                                              Accomplishment Instructions, because                        with the change described previously                   airplanes of U.S. registry.
                                              accomplishing those sections does not                       and minor editorial changes. We have                     We estimate the following costs to
                                              correct the unsafe condition, and                           determined that these minor changes:                   comply with this AD:
                                                                                                                        ESTIMATED COSTS
                                                                                                                                                                                   Cost per        Cost on U.S.
                                                             Action                                                 Labor cost                                  Parts cost         product          operators

                                              Inspection and CIC application            8 work-hours × $85 per hour = $680 for 3 doors ..................                    $0           $680           $97,240



                                                We estimate the following costs to do                     be required based on the results of the                determining the number of aircraft that
                                              any necessary replacements that would                       inspection. We have no way of                          might need this replacement:

                                                                                                         ON-CONDITION COSTSESTIMATED COSTS
                                                                                                                                                                                              Cost per
                                                             Action                                                  Labor cost                                   Parts cost                  product

                                              Replacement ...........................   4 work-hours × $85 per hour = $340 per door ........................              $432    $772 per door.



                                              Authority for This Rulemaking                               the Administrator finds necessary for                  applicable to transport category
                                                Title 49 of the United States Code                        safety in air commerce. This regulation                airplanes to the Director of the System
                                              specifies the FAA’s authority to issue                      is within the scope of that authority                  Oversight Division.
                                              rules on aviation safety. Subtitle I,                       because it addresses an unsafe condition
                                                                                                          that is likely to exist or develop on                  Regulatory Findings
                                              section 106, describes the authority of
                                              the FAA Administrator. ‘‘Subtitle VII:                      products identified in this rulemaking                   We determined that this AD will not
                                              Aviation Programs,’’ describes in more                      action.                                                have federalism implications under
                                              detail the scope of the Agency’s                               This AD is issued in accordance with                Executive Order 13132. This AD will
                                              authority.                                                  authority delegated by the Executive                   not have a substantial direct effect on
                                                We are issuing this rulemaking under                      Director, Aircraft Certification Service,              the States, on the relationship between
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                                              the authority described in ‘‘Subtitle VII,                  as authorized by FAA Order 8000.51C.                   the national government and the States,
                                              Part A, Subpart III, Section 44701:                         In accordance with that order, issuance                or on the distribution of power and
                                              General requirements.’’ Under that                          of ADs is normally a function of the                   responsibilities among the various
                                              section, Congress charges the FAA with                      Compliance and Airworthiness                           levels of government.
                                              promoting safe flight of civil aircraft in                  Division, but during this transition
                                              air commerce by prescribing regulations                     period, the Executive Director has                       For the reasons discussed above, I
                                              for practices, methods, and procedures                      delegated the authority to issue ADs                   certify that this AD:



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                                                                Federal Register / Vol. 83, No. 19 / Monday, January 29, 2018 / Rules and Regulations                                                 3941

                                                1. Is not a ‘‘significant regulatory                  (g) Inspection and Replacement of Bearings             (k) Material Incorporated by Reference
                                              action’’ under Executive Order 12866;                      Within 6,000 flight hours or 36 months                 (1) The Director of the Federal Register
                                                2. Is not a ‘‘significant rule’’ under the            after the effective date of this AD, whichever         approved the incorporation by reference
                                              DOT Regulatory Policies and Procedures                  occurs earlier, do a detailed visual inspection        (IBR) of the service information listed in this
                                                                                                      of all translating fuselage door lift and latch        paragraph under 5 U.S.C. 552(a) and 1 CFR
                                              (44 FR 11034, February 26, 1979);                                                                              part 51.
                                                                                                      shaft roller bearings for signs of corrosion,
                                                3. Will not affect intrastate aviation in             damaged seals, and loss of lubricant; replace             (2) You must use this service information
                                              Alaska; and                                             any corroded bearings; and apply corrosion-            as applicable to do the actions required by
                                                4. Will not have a significant                        inhibiting compound (CIC); in accordance               this AD, unless this AD specifies otherwise.
                                                                                                      with paragraph 3.B., ‘‘Procedure,’’ of the                (i) Bombardier Service Bulletin 84–52–88,
                                              economic impact, positive or negative,                                                                         dated April 14, 2016.
                                                                                                      Accomplishment Instructions of Bombardier
                                              on a substantial number of small entities               Service Bulletin 84–52–88, dated April 14,                (ii) Reserved.
                                              under the criteria of the Regulatory                    2016.                                                     (3) For service information identified in
                                              Flexibility Act.                                                                                               this AD, contact Bombardier, Inc., Q-Series
                                                                                                      (h) Credit for Previous Actions                        Technical Help Desk, 123 Garratt Boulevard,
                                              List of Subjects in 14 CFR Part 39                        This paragraph provides credit for actions           Toronto, Ontario M3K 1Y5, Canada;
                                                Air transportation, Aircraft, Aviation                required by paragraph (g) of this AD, if those         telephone 416–375–4000; fax 416–375–4539;
                                                                                                      actions were performed before the effective            email thd.qseries@aero.bombardier.com;
                                              safety, Incorporation by reference,                                                                            internet http://www.bombardier.com.
                                                                                                      date of this AD using Bombardier Service
                                              Safety.                                                 Bulletin 84–52–85, dated September 23,                    (4) You may view this service information
                                              Adoption of the Amendment                               2015; or Bombardier Service Bulletin 84–52–            at the FAA, Transport Standards Branch,
                                                                                                      85, Revision A, dated January 22, 2016.                1601 Lind Avenue SW, Renton, WA. For
                                                Accordingly, under the authority                                                                             information on the availability of this
                                                                                                      (i) Other FAA AD Provisions                            material at the FAA, call 425–227–1221.
                                              delegated to me by the Administrator,
                                                                                                         The following provisions also apply to this            (5) You may view this service information
                                              the FAA amends 14 CFR part 39 as
                                                                                                      AD:                                                    that is incorporated by reference at the
                                              follows:                                                                                                       National Archives and Records
                                                                                                         (1) Alternative Methods of Compliance
                                                                                                      (AMOCs): The Manager, New York ACO                     Administration (NARA). For information on
                                              PART 39—AIRWORTHINESS                                                                                          the availability of this material at NARA, call
                                                                                                      Branch, FAA, has the authority to approve
                                              DIRECTIVES                                              AMOCs for this AD, if requested using the              202–741–6030, or go to: http://
                                                                                                      procedures found in 14 CFR 39.19. In                   www.archives.gov/federal-register/cfr/ibr-
                                              ■ 1. The authority citation for part 39                 accordance with 14 CFR 39.19, send your                locations.html.
                                              continues to read as follows:                           request to your principal inspector or local             Issued in Renton, Washington, on January
                                                  Authority: 49 U.S.C. 106(g), 40113, 44701.          Flight Standards District Office, as                   17, 2018.
                                                                                                      appropriate. If sending information directly           Michael Kaszycki,
                                              § 39.13   [Amended]                                     to the manager of the certification office,
                                                                                                      send it to ATTN: Program Manager,                      Acting Director, System Oversight Division,
                                              ■ 2. The FAA amends § 39.13 by adding                                                                          Aircraft Certification Service.
                                                                                                      Continuing Operational Safety, FAA, New
                                              the following new airworthiness                         York ACO Branch, 1600 Stewart Avenue,                  [FR Doc. 2018–01317 Filed 1–26–18; 8:45 am]
                                              directive (AD):                                         Suite 410, Westbury, NY 11590; telephone               BILLING CODE 4910–13–P
                                                                                                      516–228–7300; fax 516–794–5531. Before
                                              2018–02–16 Bombardier, Inc.: Amendment                  using any approved AMOC, notify your
                                                  39–19169; Docket No. FAA–2017–0621;                 appropriate principal inspector, or lacking a
                                                  Product Identifier 2017–NM–049–AD.
                                                                                                                                                             DEPARTMENT OF TRANSPORTATION
                                                                                                      principal inspector, the manager of the local
                                              (a) Effective Date                                      flight standards district office/certificate           Federal Aviation Administration
                                                                                                      holding district office.
                                                This AD is effective March 5, 2018.
                                                                                                         (2) Contacting the Manufacturer: For any            14 CFR Part 39
                                              (b) Affected ADs                                        requirement in this AD to obtain corrective
                                                                                                      actions from a manufacturer, the action must           [Docket No. FAA–2017–0896; Product
                                                None.
                                                                                                      be accomplished using a method approved                Identifier 2017–SW–034–AD; Amendment
                                              (c) Applicability                                       by the Manager, New York ACO Branch,                   39–19166; AD 2018–02–13]
                                                 This AD applies to Bombardier, Inc.,                 FAA; or Transport Canada Civil Aviation                RIN 2120–AA64
                                              Model DHC–8–400, –401, and –402                         (TCCA); or Bombardier, Inc.’s TCCA Design
                                              airplanes, certificated in any category, serial         Approval Organization (DAO). If approved by            Airworthiness Directives; Sikorsky
                                              numbers 4001 and 4003 through 4488                      the DAO, the approval must include the
                                                                                                      DAO-authorized signature.
                                                                                                                                                             Aircraft Corporation Helicopters
                                              inclusive, except those incorporating
                                              Bombardier ModSum IS4Q5200050.                          (j) Related Information                                AGENCY:  Federal Aviation
                                              (d) Subject
                                                                                                                                                             Administration (FAA), DOT.
                                                                                                         (1) Refer to Mandatory Continuing
                                                                                                      Airworthiness Information (MCAI) Canadian              ACTION: Final rule.
                                                Air Transport Association (ATA) of
                                              America Code 52, Doors.                                 Airworthiness Directive CF–2016–18, dated
                                                                                                                                                             SUMMARY:   We are superseding
                                                                                                      June 6, 2016, for related information. This
                                              (e) Reason                                              MCAI may be found in the AD docket on the              Airworthiness Directive (AD) 2017–07–
                                                 This AD was prompted by reports of                   internet at http://www.regulations.gov by              02 for Sikorsky Aircraft Corporation
                                              interrupted operation of translating fuselage           searching for and locating Docket No. FAA–             (Sikorsky) Model 269D and Model 269D
                                              doors caused by corrosion in the door lift and          2017–0621.                                             Configuration A helicopters. AD 2017–
                                              latch shaft roller bearings. We are issuing this           (2) For more information about this AD,             07–02 required reducing the life limit of
                                              AD to detect and correct bearing corrosion              contact Aziz Ahmed, Aerospace Engineer,                and inspecting certain drive shafts. This
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                                              and prevent door operation interruptions that           Airframe and Mechanical Systems Section,               new AD retains the requirements of AD
                                              could inhibit safe evacuation of the airplane           FAA, New York ACO Branch, 1600 Stewart                 2017–07–02 and requires repeating the
                                              in an emergency.                                        Avenue, Suite 410, Westbury, NY 11590;                 inspections. The actions of this AD are
                                                                                                      telephone 516–228–7329; fax 516–794–5531.
                                              (f) Compliance                                             (3) Service information identified in this
                                                                                                                                                             intended to detect and prevent an
                                                 Comply with this AD within the                       AD that is not incorporated by reference is            unsafe condition on these products.
                                              compliance times specified, unless already              available at the addresses specified in                DATES: This AD is effective March 5,
                                              done.                                                   paragraphs (k)(3) and (k)(4) of this AD.               2018.


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Document Created: 2018-01-27 00:57:57
Document Modified: 2018-01-27 00:57:57
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis AD is effective March 5, 2018.
ContactAziz Ahmed, Aerospace Engineer, Airframe and Mechanical Systems Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7329; fax 516-794-5531.
FR Citation83 FR 3939 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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