83 FR 43747 - Airworthiness Directives; Bombardier, Inc., Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 167 (August 28, 2018)

Page Range		43747-43750
FR Document		2018-18273
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model DHC-8-400 series airplanes. This AD was prompted by reports of arcing and smoke emanating from the windshields. This AD requires a revision to the maintenance or inspection program, as applicable, to include an inspection of the windshield moisture seal for signs of cracks, erosion, wear, and other deterioration; doing that inspection and repair if necessary; and re-torqueing the screws that fasten the windshield heater terminal lugs and applying sealant to the screw heads of the windshield heaters. We are issuing this AD to address the unsafe condition on these products.
Federal Register, Volume 83 Issue 167 (Tuesday, August 28, 2018)
[Federal Register Volume 83, Number 167 (Tuesday, August 28, 2018)]
[Rules and Regulations]
[Pages 43747-43750]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-18273]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0118; Product Identifier 2017-NM-083-AD; Amendment 
39-19371; AD 2018-17-17]
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 of arcing and smoke emanating from the windshields. 
This AD requires a revision to the maintenance or inspection program, 
as applicable, to include an inspection of the windshield moisture seal 
for signs of cracks, erosion, wear, and other deterioration; doing that 
inspection and repair if necessary; and re-torqueing the screws that 
fasten the windshield heater terminal lugs and applying sealant to the 
screw heads of the windshield heaters. We are issuing this AD to 
address the unsafe condition on these products.

DATES: This AD is effective October 2, 2018.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of October 2, 
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, 2200 South 216th 
St., Des Moines, WA. For information on the availability of this 
material at the FAA, call 206-231-3195. It is also available on the 
internet at http://www.regulations.gov by searching for and locating 
Docket No. FAA-2018-0118.

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-2018-
0118; or in person at Docket Operations between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The AD docket contains 
this final rule, the regulatory evaluation, any comments received, and 
other information. The address for Docket Operations (phone: 800-647-
5527) is Docket Operations, 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: Steve Dzierzynski, Aerospace Engineer, 
Avionics and Administrative Services Section, FAA, New York ACO Branch, 
1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-
7367; 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 March 1, 2018 (83 FR 8810). The NPRM was prompted by 
reports of arcing and smoke emanating from the windshields. The NPRM 
proposed to require a revision to the maintenance or inspection 
program, as applicable, to include an inspection of the windshield 
moisture seal for signs of cracks, erosion, wear, and other 
deterioration; doing that inspection and repair if necessary; and re-
torqueing the screws that fasten the windshield heater terminal lugs 
and applying sealant to the screw heads of the windshield heaters.
    We are issuing this AD to detect and correct loose windshield 
heater terminal lugs. Loose terminal lugs could create sparks that lead 
to burning of the lugs and, due to the excessive heat, cracking of the 
windshields. If not corrected, such a condition could cause a loss of 
cabin pressure resulting in an emergency descent.
    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian AD

[[Page 43748]]

CF-2017-18, dated May 26, 2017 (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:

    There have been numerous reports of arcing and smoke emanating 
from the windshields. Review of these incidents revealed that the 
windshield heater terminal lugs tend to loosen over time. Loose 
terminal lugs could create sparks that lead to burning of the lugs 
and, due to the excessive heat, cracking of the windshields. If not 
corrected, this condition could cause a loss of cabin pressure 
resulting in an emergency descent.

    Required actions include a revision to the maintenance or 
inspection program, as applicable, to include an inspection of the 
windshield moisture seal for signs of cracks, erosion, wear, or other 
deterioration; doing that inspection and repair if necessary; and re-
torqueing the screws that fasten the windshield heater terminal lugs 
and applying sealant (Humiseal) to the screw heads of the windshield 
heaters. 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-2018-0118.

Comments

    We gave the public the opportunity to participate in developing 
this final rule. The following presents the comments received on the 
NPRM and the FAA's response to each comment.

Request To Revise Requirements Related to Temporary Revision (TR)

    Horizon Air requested that paragraph (g) of the proposed AD be 
revised to either refer to Bombardier Q400 Dash 8 Maintenance 
Requirements Manual (MRM) Part 1, Revision 13, dated March 15, 2017 
(``MRM Part 1, Revision 13''), or include a statement that, ``When this 
temporary revision has been included in general revisions of the PSM 
[product support manual], the general revisions may be inserted in the 
maintenance or inspection program, as applicable, provided the relevant 
information in the general revision is identical to that in Bombardier 
[Q400 Dash 8 Maintenance Review Board Report] TR MRB-0099 [dated 
December 9, 2016 (``TR MRB-0099'')].'' The commenter noted that 
paragraph (g) of the proposed AD would require incorporation of TR MRB-
0099 and that this TR has already been incorporated into MRM Part 1, 
Revision 13.
    We agree to clarify the requirement in paragraph (g) of the AD. As 
noted by the commenter, the TR has already been incorporated into MRM 
Part 1, Revision 13. Therefore, if operators incorporate MRM Part 1, 
Revision 13, into the maintenance or inspection program, as applicable, 
they are in compliance with paragraph (g)(1) of this AD (i.e., since 
the MRM Part 1, Revision 13, contains the information in TR MRB-0099, 
by incorporating MRM Part 1, Revision 13, the operator is complying 
with the requirement to incorporate the information specified in TR 
MRB-0099). We have revised paragraph (g) of this AD to include a 
statement in paragraph (g)(2) of this AD that specifies if the 
information in TR MRB-0099 has been included in the general revisions 
of the maintenance requirements manual and the general revisions have 
been inserted in the maintenance or inspection program, as applicable, 
the requirement of paragraph (g)(1) of this AD is met.

Request To Include Instructions for Doing Inspection

    Horizon Air requested that Bombardier Q400 Dash 8 MRB Task 
561001E201, ``General Visual Inspection of the Windshield Moisture 
Seal,'' (``MRB Task 561001E201''), Task 56-10-01-210-801, of the 
Bombardier Q400 Dash 8 Airplane Maintenance Manual, be included in 
paragraph (i) of the proposed AD as approved instructions for doing the 
inspection of the moisture seal on the left and right windshields.
    We agree with the commenter's request. We have included information 
in Note 1 to paragraph (i) of this AD that guidance for doing the 
inspection of the moisture seal can be found in MRB Task 561001E201. We 
also re-designated Note 1 to paragraph (i) of the proposed AD to Note 2 
to paragraph (i) of this AD.

Request To Include Additional Information in Note 1 to Paragraph (i) of 
the Proposed AD

    Horizon Air requested that Note 1 to paragraph (i) of the proposed 
AD include PPG Sierracin Component Maintenance Manual (CMM) 56-10-12, 
Revision B, dated October 21, 2004. The commenter observed that Note 1 
to paragraph (i) of the proposed AD provided additional guidance for 
repair of the moisture seal and referred to PPG Aerospace 
Transparencies Abbreviated CMM, Part Number NP-157901, Revision 6, 
dated June 16, 2015. The commenter did not provide justification for 
this request.
    We partially agree with the commenter's request. We have moved the 
content of Note 1 to paragraph (i) of the proposed AD into Note 2 to 
paragraph (i) of this AD. Instead of Revision B, we have included 
Revision D, dated April 6, 2017, of PPG Sierracin CMM, 56-10-12, as an 
additional source of guidance for repair of the moisture seal.

Request To Exclude Job Set-Up and Close Out From Required Actions

    Horizon Air requested that only the sections of the Accomplishment 
Instructions of Bombardier Service Bulletin 84-30-16, Revision A, dated 
September 27, 2017, that address the unsafe condition be specified in 
paragraph (j) of the proposed AD. The commenter stated that including 
the job set-up and close out sections of the Accomplishment 
Instructions restricts an operator's ability to perform other 
maintenance in conjunction with the incorporation of the actions 
specified in this service bulletin.
    We agree with the commenter's request to clarify which section of 
the Accomplishment Instructions of Bombardier Service Bulletin 84-30-
16, Revision A, dated September 27, 2017, that operators must use to 
accomplish the actions required by paragraph (j) of this AD. We have 
revised paragraph (j) of this AD to specify that operators must do the 
applicable actions in accordance with paragraph 3.B., ``Procedure,'' of 
the Accomplishment Instructions of Bombardier Service Bulletin 84-30-
16, Revision A, dated September 27, 2017.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this final rule with the changes 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 addressing 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 final 
rule.

Related Service Information Under 1 CFR Part 51

    Bombardier has issued Service Bulletin 84-30-16, Revision A, dated 
September 27, 2017. This service information describes procedures for 
re-torqueing the screws that fasten the windshield heater terminal lugs 
and applying sealant to the screw heads of the windshield heaters.
    Bombardier has also issued Q400 Dash 8 Maintenance Review Board 
Report Temporary Revision (TR) MRB-0099, dated December 9, 2016. This

[[Page 43749]]

temporary revision describes procedures for inspecting the moisture 
seal for the left and right windshields for signs of cracks, erosion, 
wear, and other deterioration.
    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 54 airplanes of U.S. registry.
    We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                 Cost on U.S.
             Action                     Labor cost          Parts cost     Cost per product        operators
----------------------------------------------------------------------------------------------------------------
Inspection/Re-torque/Seal......  Up to 3 work-hours x                 $0  Up to $255........  Up to $13,770.
                                  $85 per hour = $255.
----------------------------------------------------------------------------------------------------------------

    We have determined that revising the maintenance or inspection 
program takes an average of 90 work-hours per operator, although we 
recognize that this number may vary from operator to operator. In the 
past, we have estimated that this action takes 1 work-hour per 
airplane. Since operators incorporate maintenance or inspection program 
changes for their affected fleet(s), we have determined that a per-
operator estimate is more accurate than a per-airplane estimate. 
Therefore, we estimate the total cost per operator to be $7,650 (90 
work-hours x $85 per work-hour).
    We have received no definitive data that will enable us to provide 
a cost estimate for the on-condition repair specified in this AD.

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:
    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):

2018-17-17 Bombardier, Inc.: Amendment 39-19371; Docket No. FAA-
2018-0118; Product Identifier 2017-NM-083-AD.

(a) Effective Date

    This AD is effective October 2, 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 
through 4524 inclusive.

(d) Subject

    Air Transport Association (ATA) of America Code 30, Ice and Rain 
Protection.

(e) Reason

    This AD was prompted by reports of arcing and smoke emanating 
from the windshields. We are issuing this AD to detect and correct 
loose windshield heater terminal lugs. Loose terminal lugs could 
create sparks that lead to burning of the lugs and, due to the 
excessive heat, cracking of the windshields. If not corrected, such 
a condition could cause a loss of cabin pressure resulting in an 
emergency descent.

(f) Compliance

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

(g) Revision to Inspection or Maintenance Program

    (1) Within 30 days after the effective date of this AD: Revise 
the maintenance or inspection program, as applicable, to incorporate 
the task specified in Bombardier Q400 Dash 8 Maintenance Review 
Board Report Temporary Revision (TR) MRB-0099, dated December 9, 
2016.
    (2) If the information in Bombardier Q400 Dash 8 Maintenance 
Review Board Report Temporary Revision (TR) MRB-0099, dated December 
9, 2016, has been included in the general revisions of the 
Bombardier Q400 Dash 8 Maintenance Requirements Manual and the 
general revisions have been inserted into the maintenance or 
inspection program, as applicable, the requirement in paragraph 
(g)(1) of this AD is met.

(h) No Alternative Actions or Intervals

    After the maintenance or inspection program has been revised as 
required by paragraph (g) of this AD, no alternative actions (e.g., 
inspections) or intervals may be used unless the actions or 
intervals are approved as an alternative method of compliance (AMOC) 
in accordance with the

[[Page 43750]]

procedures specified in paragraph (k)(1) of this AD.

(i) Inspection and Corrective Action

    Within 1,600 flight hours or 12 months after the effective date 
of this AD, whichever occurs first, do a general visual inspection 
of the moisture seal on the left and right windshields for signs of 
cracks, erosion, wear, and other deterioration (including 
discoloration, warping, or missing material). If any crack, erosion, 
wear, or other deterioration is found, before further flight, repair 
the moisture seal in accordance with 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.

    Note 1 to paragraph (i) of this AD:  Additional guidance for 
inspection of the moisture seal can be found in Bombardier Q400 Dash 
8 Maintenance Review Board (MRB) Task 561001E201, ``General Visual 
Inspection of the Windshield Moisture Seal,'' (Task 56-10-01-210-
801, of the Bombardier Q400 Dash 8 Airplane Maintenance Manual).


    Note 2 to paragraph (i) of this AD: Additional guidance for 
repair of the moisture seal can be found in PPG Aerospace 
Transparencies Abbreviated Component Maintenance Manual, Part Number 
NP-157901, Revision 6, dated June 16, 2015; and PPG Sierracin 
Component Maintenance Manual, 56-10-12, Part Number 802600, Revision 
D, dated April 6, 2017.

(j) Re-Torqueing and Sealing Screws

    Within 8,000 flight hours or 60 months after the effective date 
of this AD, whichever occurs first: Re-torque the windshield heater 
terminal lug screws for the left and right windshields and apply 
Humiseal to the screw heads of the windshield heaters, in accordance 
with paragraph 3.B., ``Procedure,'' of the Accomplishment 
Instructions of Bombardier Service Bulletin 84-30-16, Revision A, 
dated September 27, 2017.

(k) 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 TCCA; or Bombardier, Inc.'s TCCA 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 AD CF-2017-18, dated May 26, 2017, 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-2018-0118.
    (2) For more information about this AD, contact Steve 
Dzierzynski, Aerospace Engineer, Avionics and Administrative 
Services Section, FAA, New York ACO Branch, 1600 Stewart Avenue, 
Suite 410, Westbury, NY 11590; telephone 516-228-7367; fax 516-794-
5531.

(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 Q400 Dash 8 Maintenance Review Board Report 
Temporary Revision (TR) MRB-0099, dated December 9, 2016.
    (ii) Bombardier Service Bulletin 84-30-16, Revision A, dated 
September 27, 2017.
    (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, 2200 South 216th St., Des Moines, WA. For 
information on the availability of this material at the FAA, call 
206-231-3195.
    (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 Des Moines, Washington, on August 16, 2018.
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2018-18273 Filed 8-27-18; 8:45 am]
 BILLING CODE 4910-13-P
Federal Register / Vol. 83, No. 167 / Tuesday, August 28, 2018 / Rules and Regulations 43747

(2) Contacting the Manufacturer: For any the availability of this material at NARA, call For information on the availability of
requirement in this AD to obtain corrective 202–741–6030, or go to: http:// this material at the FAA, call 206–231–
actions from a manufacturer, the action must www.archives.gov/federal-register/cfr/ibr- 3195. It is also available on the internet
be accomplished using a method approved locations.html. at http://www.regulations.gov by
by the Manager, International Section,
Issued in Des Moines, Washington, on searching for and locating Docket No.
Transport Standards Branch, FAA; or EASA;
August 16, 2018. FAA–2018–0118.
or Airbus SAS’s EASA DOA. If approved by
the DOA, the approval must include the Michael Kaszycki,
Examining the AD Docket
DOA-authorized signature. Acting Director, System Oversight Division,
(3) Required for Compliance (RC): If any Aircraft Certification Service. You may examine the AD docket on
service information contains procedures or [FR Doc. 2018–18272 Filed 8–27–18; 8:45 am] the internet at http://
tests that are identified as RC, those BILLING CODE 4910–13–P www.regulations.gov by searching for
procedures and tests must be done to comply and locating Docket No. FAA–2018–
with this AD; any procedures or tests that are 0118; or in person at Docket Operations
not identified as RC are recommended. Those between 9 a.m. and 5 p.m., Monday
DEPARTMENT OF TRANSPORTATION
procedures and tests that are not identified
as RC may be deviated from using accepted
through Friday, except Federal holidays.
Federal Aviation Administration The AD docket contains this final rule,
methods in accordance with the operator’s
maintenance or inspection program without the regulatory evaluation, any
obtaining approval of an AMOC, provided 14 CFR Part 39 comments received, and other
the procedures and tests identified as RC can [Docket No. FAA–2018–0118; Product information. The address for Docket
be done and the airplane can be put back in Identifier 2017–NM–083–AD; Amendment Operations (phone: 800–647–5527) is
an airworthy condition. Any substitutions or 39–19371; AD 2018–17–17] Docket Operations, U.S. Department of
changes to procedures or tests identified as Transportation, Docket Operations, M–
RC require approval of an AMOC. RIN 2120–AA64
30, West Building Ground Floor, Room
(l) Related Information Airworthiness Directives; Bombardier, W12–140, 1200 New Jersey Avenue SE,
(1) Refer to Mandatory Continuing Inc., Airplanes Washington, DC 20590.
Airworthiness Information (MCAI) EASA AD FOR FURTHER INFORMATION CONTACT:
2016–0229, dated November 15, 2016, for AGENCY: Federal Aviation Steve Dzierzynski, Aerospace Engineer,
related information. This MCAI may be Administration (FAA), Department of Avionics and Administrative Services
found in the AD docket on the internet at Transportation (DOT). Section, FAA, New York ACO Branch,
http://www.regulations.gov by searching for ACTION: Final rule.
and locating Docket No. FAA–2017–0554.
1600 Stewart Avenue, Suite 410,
(2) For more information about this AD, Westbury, NY 11590; telephone 516–
SUMMARY: We are adopting a new 228–7367; fax 516–794–5531.
contact Dan Rodina, Aerospace Engineer, airworthiness directive (AD) for certain
International Section, Transport Standards SUPPLEMENTARY INFORMATION:
Branch, FAA, 2200 South 216th St., Des
Bombardier, Inc., Model DHC–8–400
Moines, WA 98198; telephone and fax 206– series airplanes. This AD was prompted Discussion
231–3225. by reports of arcing and smoke
We issued a notice of proposed
(3) Service information identified in this emanating from the windshields. This
rulemaking (NPRM) to amend 14 CFR
AD that is not incorporated by reference is AD requires a revision to the
part 39 by adding an AD that would
available at the addresses specified in maintenance or inspection program, as
paragraphs (m)(3) and (m)(4) of this AD. apply to certain Bombardier, Inc., Model
applicable, to include an inspection of
DHC–8–400 series airplanes. The NPRM
(m) Material Incorporated by Reference the windshield moisture seal for signs of
published in the Federal Register on
(1) The Director of the Federal Register
cracks, erosion, wear, and other
March 1, 2018 (83 FR 8810). The NPRM
approved the incorporation by reference deterioration; doing that inspection and
was prompted by reports of arcing and
(IBR) of the service information listed in this repair if necessary; and re-torqueing the
smoke emanating from the windshields.
paragraph under 5 U.S.C. 552(a) and 1 CFR screws that fasten the windshield heater
The NPRM proposed to require a
part 51. terminal lugs and applying sealant to
revision to the maintenance or
(2) You must use this service information the screw heads of the windshield
as applicable to do the actions required by inspection program, as applicable, to
heaters. We are issuing this AD to
this AD, unless this AD specifies otherwise. include an inspection of the windshield
address the unsafe condition on these
(i) Airbus Service Bulletin A300–57–0256, moisture seal for signs of cracks,
products.
Revision 00, dated August 3, 2015. erosion, wear, and other deterioration;
(ii) Airbus Service Bulletin A300–57–6114, DATES: This AD is effective October 2, doing that inspection and repair if
Revision 01, dated June 19, 2018. 2018. necessary; and re-torqueing the screws
(iii) Airbus Service Bulletin A310–57– The Director of the Federal Register that fasten the windshield heater
2102, Revision 00, dated August 3, 2015. approved the incorporation by reference terminal lugs and applying sealant to
(3) For service information identified in of certain publications listed in this AD
this AD, contact Airbus SAS, Airworthiness
the screw heads of the windshield
as of October 2, 2018. heaters.
Office—EAW, Rond-Point Emile Dewoitine
No: 2, 31700 Blagnac Cedex, France; ADDRESSES: For service information We are issuing this AD to detect and
telephone +33 5 61 93 36 96; fax +33 5 61 identified in this final rule, contact correct loose windshield heater terminal
93 44 51; email account.airworth-eas@ Bombardier, Inc., Q Series Technical lugs. Loose terminal lugs could create
airbus.com; internet http://www.airbus.com. Help Desk, 123 Garratt Boulevard, sparks that lead to burning of the lugs
(4) You may view this service information Toronto, Ontario M3K 1Y5, Canada; and, due to the excessive heat, cracking
at the FAA, Transport Standards Branch, telephone: 416–375–4000; fax: 416– of the windshields. If not corrected,
daltland on DSKBBV9HB2PROD with RULES

2200 South 216th St., Des Moines, WA. For 375–4539; email: thd.qseries@ such a condition could cause a loss of
information on the availability of this
material at the FAA, call 206–231–3195.
aero.bombardier.com; internet: http:// cabin pressure resulting in an
(5) You may view this service information www.bombardier.com. You may view emergency descent.
that is incorporated by reference at the this referenced service information at Transport Canada Civil Aviation
National Archives and Records the FAA, Transport Standards Branch, (TCCA), which is the aviation authority
Administration (NARA). For information on 2200 South 216th St., Des Moines, WA. for Canada, has issued Canadian AD

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Federal Register / Vol. 83, No. 167 / Tuesday, August 28, 2018 / Rules and Regulations 43749

temporary revision describes procedures This service information is reasonably Costs of Compliance
for inspecting the moisture seal for the available because the interested parties We estimate that this AD affects 54
left and right windshields for signs of have access to it through their normal airplanes of U.S. registry.
cracks, erosion, wear, and other course of business or by the means We estimate the following costs to
deterioration. identified in the ADDRESSES section. comply with this AD:
ESTIMATED COSTS
Action Labor cost Parts cost Cost per product Cost on U.S. operators

Inspection/Re-torque/ Up to 3 work-hours × $85 per hour = $255 ....... $0 Up to $255 ................... Up to $13,770.
Seal.

We have determined that revising the applicable to transport category (a) Effective Date
maintenance or inspection program airplanes to the Director of the System This AD is effective October 2, 2018.
takes an average of 90 work-hours per Oversight Division.
(b) Affected ADs
operator, although we recognize that
Regulatory Findings None.
this number may vary from operator to
operator. In the past, we have estimated We determined that this AD will not (c) Applicability
that this action takes 1 work-hour per have federalism implications under This AD applies to Bombardier, Inc.,
airplane. Since operators incorporate Executive Order 13132. This AD will Model DHC–8–400, –401, and –402
maintenance or inspection program not have a substantial direct effect on airplanes, certificated in any category, serial
changes for their affected fleet(s), we the States, on the relationship between numbers 4001 through 4524 inclusive.
have determined that a per-operator the national government and the States, (d) Subject
estimate is more accurate than a per- or on the distribution of power and
airplane estimate. Therefore, we Air Transport Association (ATA) of
responsibilities among the various America Code 30, Ice and Rain Protection.
estimate the total cost per operator to be levels of government.
$7,650 (90 work-hours × $85 per work- For the reasons discussed above, I (e) Reason
hour). certify that this AD: This AD was prompted by reports of arcing
We have received no definitive data 1. Is not a ‘‘significant regulatory and smoke emanating from the windshields.
that will enable us to provide a cost action’’ under Executive Order 12866, We are issuing this AD to detect and correct
estimate for the on-condition repair loose windshield heater terminal lugs. Loose
2. Is not a ‘‘significant rule’’ under the terminal lugs could create sparks that lead to
specified in this AD. DOT Regulatory Policies and Procedures burning of the lugs and, due to the excessive
Authority for This Rulemaking (44 FR 11034, February 26, 1979), heat, cracking of the windshields. If not
Title 49 of the United States Code 3. Will not affect intrastate aviation in corrected, such a condition could cause a
specifies the FAA’s authority to issue Alaska, and loss of cabin pressure resulting in an
4. Will not have a significant emergency descent.
rules on aviation safety. Subtitle I,
section 106, describes the authority of economic impact, positive or negative, (f) Compliance
the FAA Administrator. Subtitle VII: on a substantial number of small entities Comply with this AD within the
Aviation Programs, describes in more under the criteria of the Regulatory compliance times specified, unless already
detail the scope of the Agency’s Flexibility Act. done.
authority. List of Subjects in 14 CFR Part 39 (g) Revision to Inspection or Maintenance
We are issuing this rulemaking under Program
the authority described in Subtitle VII, Air transportation, Aircraft, Aviation
safety, Incorporation by reference, (1) Within 30 days after the effective date
Part A, Subpart III, Section 44701: of this AD: Revise the maintenance or
‘‘General requirements.’’ Under that Safety. inspection program, as applicable, to
section, Congress charges the FAA with Adoption of the Amendment incorporate the task specified in Bombardier
promoting safe flight of civil aircraft in Q400 Dash 8 Maintenance Review Board
air commerce by prescribing regulations Accordingly, under the authority Report Temporary Revision (TR) MRB–0099,
for practices, methods, and procedures delegated to me by the Administrator, dated December 9, 2016.
the Administrator finds necessary for the FAA amends 14 CFR part 39 as (2) If the information in Bombardier Q400
safety in air commerce. This regulation follows: Dash 8 Maintenance Review Board Report
Temporary Revision (TR) MRB–0099, dated
is within the scope of that authority
PART 39—AIRWORTHINESS December 9, 2016, has been included in the
because it addresses an unsafe condition general revisions of the Bombardier Q400
that is likely to exist or develop on DIRECTIVES
Dash 8 Maintenance Requirements Manual
products identified in this rulemaking and the general revisions have been inserted
■ 1. The authority citation for part 39
action. into the maintenance or inspection program,
This AD is issued in accordance with continues to read as follows:
as applicable, the requirement in paragraph
authority delegated by the Executive Authority: 49 U.S.C. 106(g), 40113, 44701. (g)(1) of this AD is met.
Director, Aircraft Certification Service, (h) No Alternative Actions or Intervals
§ 39.13 [Amended]
as authorized by FAA Order 8000.51C.
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■ 2. The FAA amends § 39.13 by adding After the maintenance or inspection
In accordance with that order, issuance
program has been revised as required by
of ADs is normally a function of the the following new airworthiness
paragraph (g) of this AD, no alternative
Compliance and Airworthiness directive (AD): actions (e.g., inspections) or intervals may be
Division, but during this transition 2018–17–17 Bombardier, Inc.: Amendment used unless the actions or intervals are
period, the Executive Director has 39–19371; Docket No. FAA–2018–0118; approved as an alternative method of
delegated the authority to issue ADs Product Identifier 2017–NM–083–AD. compliance (AMOC) in accordance with the

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43750 Federal Register / Vol. 83, No. 167 / Tuesday, August 28, 2018 / Rules and Regulations

procedures specified in paragraph (k)(1) of actions from a manufacturer, the action must DEPARTMENT OF TRANSPORTATION
this AD. be accomplished using a method approved
(i) Inspection and Corrective Action by the Manager, New York ACO Branch, Federal Aviation Administration
FAA; or TCCA; or Bombardier, Inc.’s TCCA
Within 1,600 flight hours or 12 months
DAO. If approved by the DAO, the approval 14 CFR Part 71
after the effective date of this AD, whichever
occurs first, do a general visual inspection of must include the DAO-authorized signature.
[Docket No. FAA–2018–0437; Airspace
the moisture seal on the left and right (l) Related Information Docket No. 18–ASO–5]
windshields for signs of cracks, erosion,
wear, and other deterioration (including (1) Refer to Mandatory Continuing RIN 2120–AA66
discoloration, warping, or missing material). Airworthiness Information (MCAI) Canadian
If any crack, erosion, wear, or other AD CF–2017–18, dated May 26, 2017, for Establishment and Modification of
deterioration is found, before further flight, related information. This MCAI may be Area Navigation Routes, Florida
repair the moisture seal in accordance with found in the AD docket on the internet at Metroplex Project; Southeastern
a method approved by the Manager, New http://www.regulations.gov by searching for United States
York ACO Branch, FAA; or Transport Canada and locating Docket No. FAA–2018–0118.
Civil Aviation (TCCA); or Bombardier, Inc.’s (2) For more information about this AD, AGENCY: Federal Aviation
TCCA Design Approval Organization (DAO). Administration (FAA), DOT.
contact Steve Dzierzynski, Aerospace
If approved by the DAO, the approval must ACTION: Final rule.
include the DAO-authorized signature. Engineer, Avionics and Administrative
Services Section, FAA, New York ACO
Note 1 to paragraph (i) of this AD: SUMMARY: This action establishes 16
Additional guidance for inspection of the Branch, 1600 Stewart Avenue, Suite 410,
high altitude area navigation (RNAV)
moisture seal can be found in Bombardier Westbury, NY 11590; telephone 516–228–
7367; fax 516–794–5531.
routes (Q-routes), and modifies 7
Q400 Dash 8 Maintenance Review Board existing Q-routes, in support of the
(MRB) Task 561001E201, ‘‘General Visual (m) Material Incorporated by Reference
Inspection of the Windshield Moisture Seal,’’
Florida Metroplex Project. The routes
(Task 56–10–01–210–801, of the Bombardier (1) The Director of the Federal Register were developed to improve the
Q400 Dash 8 Airplane Maintenance Manual). approved the incorporation by reference efficiency of the National Airspace
(IBR) of the service information listed in this System (NAS) and reduce dependency
Note 2 to paragraph (i) of this AD:
Additional guidance for repair of the paragraph under 5 U.S.C. 552(a) and 1 CFR on ground-based navigational systems
moisture seal can be found in PPG Aerospace part 51. that cause system inefficiencies due to
Transparencies Abbreviated Component (2) You must use this service information their limitations. This action also makes
Maintenance Manual, Part Number NP– as applicable to do the actions required by minor corrections to the waypoint
157901, Revision 6, dated June 16, 2015; and this AD, unless this AD specifies otherwise. names and geographic coordinates of
PPG Sierracin Component Maintenance (i) Bombardier Q400 Dash 8 Maintenance certain Q-routes.
Manual, 56–10–12, Part Number 802600, Review Board Report Temporary Revision DATES: Effective date 0901 UTC,
Revision D, dated April 6, 2017. (TR) MRB–0099, dated December 9, 2016. November 8, 2018. The Director of the
(j) Re-Torqueing and Sealing Screws (ii) Bombardier Service Bulletin 84–30–16, Federal Register approves this
Revision A, dated September 27, 2017. incorporation by reference action under
Within 8,000 flight hours or 60 months
after the effective date of this AD, whichever (3) For service information identified in Title 1, Code of Federal Regulations,
occurs first: Re-torque the windshield heater this AD, contact Bombardier, Inc., Q-Series part 51, subject to the annual revision of
terminal lug screws for the left and right Technical Help Desk, 123 Garratt Boulevard, FAA, Order 7400.11 and publication of
windshields and apply Humiseal to the Toronto, Ontario M3K 1Y5, Canada; conforming amendments.
screw heads of the windshield heaters, in telephone: 416–375–4000; fax: 416–375–
ADDRESSES: FAA Order 7400.11B,
accordance with paragraph 3.B., 4539; email: thd.qseries@
‘‘Procedure,’’ of the Accomplishment Airspace Designations and Reporting
aero.bombardier.com; internet: http://
Instructions of Bombardier Service Bulletin Points, and subsequent amendments can
www.bombardier.com.
84–30–16, Revision A, dated September 27, be viewed online at http://www.faa.gov/
(4) You may view this service information
2017. air_traffic/publications/. For further
at the FAA, Transport Standards Branch,
(k) Other FAA AD Provisions information, you can contact the
2200 South 216th St., Des Moines, WA. For
information on the availability of this
Airspace Policy Group, Federal Aviation
The following provisions also apply to this
material at the FAA, call 206–231–3195.
Administration, 800 Independence
AD:
(1) Alternative Methods of Compliance (5) You may view this service information
Avenue SW, Washington, DC 20591;
(AMOCs): The Manager, New York ACO that is incorporated by reference at the telephone: (202) 267–8783. The Order is
Branch, FAA, has the authority to approve National Archives and Records also available for inspection at the
AMOCs for this AD, if requested using the Administration (NARA). For information on National Archives and Records
procedures found in 14 CFR 39.19. In Administration (NARA). For
the availability of this material at NARA, call
accordance with 14 CFR 39.19, send your information on the availability of FAA
request to your principal inspector or local 202–741–6030, or go to: http://
www.archives.gov/federal-register/cfr/ibr- Order 7400.11B at NARA, call (202)
Flight Standards District Office, as
locations.html. 741–6030, or go to http://
appropriate. If sending information directly
to the manager of the certification office, www.archives.gov/federal-register/cfr/
Issued in Des Moines, Washington, on ibr-locations.html.
send it to ATTN: Program Manager, August 16, 2018.
Continuing Operational Safety, FAA, New FAA Order 7400.11, Airspace
York ACO Branch, 1600 Stewart Avenue, Michael Kaszycki, Designations and Reporting Points, is
Suite 410, Westbury, NY 11590; telephone: Acting Director, System Oversight Division, published yearly and effective on
516–228–7300; fax: 516–794–5531. Before Aircraft Certification Service. September 15.
daltland on DSKBBV9HB2PROD with RULES

using any approved AMOC, notify your [FR Doc. 2018–18273 Filed 8–27–18; 8:45 am] FOR FURTHER INFORMATION CONTACT: Paul
appropriate principal inspector, or lacking a
principal inspector, the manager of the local BILLING CODE 4910–13–P Gallant, Airspace Policy Group, Office
flight standards district office/certificate of Airspace Services, Federal Aviation
holding district office. Administration, 800 Independence
(2) Contacting the Manufacturer: For any Avenue SW, Washington, DC 20591;
requirement in this AD to obtain corrective telephone: (202) 267–8783.

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Document Created: 2018-08-28 00:22:28
Document Modified: 2018-08-28 00:22:28
Category		Regulatory Information
Collection		Federal Register
sudoc Class		AE 2.7: GS 4.107: AE 2.106:
Publisher		Office of the Federal Register, National Archives and Records Administration
Section		Rules and Regulations
Action		Final rule.
Dates		This AD is effective October 2, 2018.
Contact		Steve Dzierzynski, Aerospace Engineer, Avionics and Administrative Services Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228- 7367; fax 516-794-5531.
FR Citation		83 FR 43747
RIN Number		2120-AA64
CFR Associated		Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
83 FR 43747 - Airworthiness Directives; Bombardier, Inc., Airplanes

DEPARTMENT OF TRANSPORTATIONFederal Aviation Administration

Federal Register Volume 83, Issue 167 (August 28, 2018)

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
