83_FR_8851 83 FR 8810 - Airworthiness Directives; Bombardier, Inc., Airplanes

83 FR 8810 - Airworthiness Directives; Bombardier, Inc., Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 41 (March 1, 2018)

Page Range8810-8812
FR Document2018-04149

We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model DHC-8-400 series airplanes. This proposed AD was prompted by reports of arcing and smoke emanating from the windshields. This proposed AD would 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 windshield heater terminal lugs and applying sealant to the windshield heater screw heads. We are proposing this AD to address the unsafe condition on these products.

Federal Register, Volume 83 Issue 41 (Thursday, March 1, 2018)
[Federal Register Volume 83, Number 41 (Thursday, March 1, 2018)]
[Proposed Rules]
[Pages 8810-8812]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-04149]


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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]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc., Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain Bombardier, Inc., Model DHC-8-400 series airplanes. This 
proposed AD was prompted by reports of arcing and smoke emanating from 
the windshields. This proposed AD would 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 windshield heater terminal 
lugs and applying sealant to the windshield heater screw heads. We are 
proposing this AD to address the unsafe condition on these products.

DATES: We must receive comments on this proposed AD by April 16, 2018.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE, Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this NPRM, contact 
Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt Boulevard, 
Toronto, Ontario M3K 1Y5, Canada; telephone: 416-375-4000; fax: 416-
375-4539; email: thd.qseries@aero.bombardier.com; internet: http://www.bombardier.com. 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.

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 the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this NPRM, the regulatory evaluation, any comments received, 
and other information. The street address for the Docket Operations 
office (telephone: 800-647-5527) is in the ADDRESSES section. Comments 
will be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Assata Dessaline, Aerospace Engineer, 
Avionics and Administrative Services Section, FAA, New York ACO Branch, 
1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone: 516-228-
7301; fax: 516-794-5531.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2018-0118; 
Product Identifier 2017-NM-083-AD'' at the beginning of your comments. 
We specifically invite comments on the overall regulatory, economic, 
environmental, and energy aspects of this NPRM. We will consider all 
comments received by the closing date and may amend this NPRM based on 
those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this NPRM.

[[Page 8811]]

Discussion

    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian AD 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 windshield heater terminal lugs and applying sealant to 
the windshield heater screw heads. 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.

Related Service Information Under 1 CFR Part 51

    Bombardier, Inc., 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.
    Bombardier, Inc., has also issued Q400 Dash 8 Temporary Revision 
MRB-0099, dated December 9, 2016, to Part 1 of Bombardier, Inc., Q400 
Dash 8 Maintenance Requirements Manual (MRM), PSM 1-84-7. This 
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.

FAA's Determination and Requirements of This Proposed AD

    This product has been approved by the aviation authority of another 
country, and is approved for operation in the United States. Pursuant 
to our bilateral agreement with the State of Design Authority, we have 
been notified of the unsafe condition described in the MCAI and service 
information referenced above. We are proposing this AD because we 
evaluated all pertinent information and determined an unsafe condition 
exists and is likely to exist or develop on other products of the same 
type design.

Costs of Compliance

    We estimate that this proposed AD affects 54 airplanes of U.S. 
registry.
    We estimate the following costs to comply with this proposed AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
             Action                  Labor cost        Parts cost     Cost per product   Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
Revision/Inspection/Retorque/    Up to 4 work-hours              $0  Up to $340.......  Up to $18,360.
 Seal.                            x $85 per hour =
                                  $340.
----------------------------------------------------------------------------------------------------------------

    We have received no definitive data that would enable us to provide 
a cost estimate for the on-condition repair specified in this proposed 
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 proposed 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 proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would not 
have a substantial direct effect on the States, on the relationship 
between the national Government and the States, or on the distribution 
of power and responsibilities among the various levels of government.
    For the reasons discussed above, I certify this proposed 
regulation:
    1. Is not a ``significant regulatory action'' under Executive Order 
12866;
    2. Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979);
    3. Will not affect intrastate aviation in Alaska; and
    4. Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

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):


[[Page 8812]]


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

(a) Comments Due Date

    We must receive comments by April 16, 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

    Within 30 days after the effective date of this AD: Revise the 
maintenance or inspection program, as applicable, to incorporate the 
task specified in Q400 Dash 8 (Bombardier) Temporary Revision (TR) 
MRB-0099, dated December 9, 2016, into Part 1 of Bombardier, Inc., 
Q400 Dash 8 Maintenance Requirements Manual (MRM), PSM 1-84-7.

(h) No Alternative Actions and Intervals

    After the maintenance or inspection program has been revised as 
required by paragraph (g) of this AD, no alternative actions (e.g., 
inspections), intervals, may be used unless the actions and 
intervals are approved as an alternative method of compliance (AMOC) 
in accordance with the 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 
repair of the moisture seal can be found in PPG Aerospace 
Transparencies Abbreviated Component Maintenance Manual, Part Number 
NP-157901, dated June 16, 2015.

(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 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 Assata 
Dessaline, Aerospace Engineer, Avionics and Administrative Services 
Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, 
Westbury, NY 11590; telephone: 516-228-7301; fax: 516-794-5531.
    (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: thd.qseries@aero.bombardier.com; 
internet: http://www.bombardier.com. 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.

    Issued in Renton, Washington, on February 21, 2018.
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2018-04149 Filed 2-28-18; 8:45 am]
 BILLING CODE 4910-13-P



                                               8810                    Federal Register / Vol. 83, No. 41 / Thursday, March 1, 2018 / Proposed Rules

                                                  (2) For Model MYSTERE–FALCON 200                     98198; telephone 206–231–3226; fax 206–               30, West Building Ground Floor, Room
                                               airplanes: Dassault Service Bulletin F200–              231–3398.                                             W12–140, 1200 New Jersey Avenue SE,
                                               133, also referred to as 133, dated December               (3) For service information identified in          Washington, DC 20590.
                                               9, 2014.                                                this AD, contact Dassault Falcon Jet
                                                                                                       Corporation, Teterboro Airport, P.O. Box
                                                                                                                                                               • Hand Delivery: Deliver to Mail
                                                  (3) For Model MYSTERE–FALCON 50
                                               airplanes: Dassault Service Bulletin F50–531,           2000, South Hackensack, NJ 07606;                     address above between 9 a.m. and 5
                                               also referred to as 531, dated December 9,              telephone 201–440–6700; internet http://              p.m., Monday through Friday, except
                                               2014.                                                   www.dassaultfalcon.com. You may view this             Federal holidays.
                                                                                                       service information at the FAA, Transport               For service information identified in
                                               (h) New Requirement of This AD: Repetitive              Standards Branch, FAA, Transport Standards            this NPRM, contact Bombardier, Inc., Q-
                                               Main Entry/Passenger/Crew Door Closing                  Branch, 2200 South 216th St., Des Moines,             Series Technical Help Desk, 123 Garratt
                                               Inspections, Adjustments, and Operational               WA. For information on the availability of
                                               Tests and Corrective Actions                                                                                  Boulevard, Toronto, Ontario M3K 1Y5,
                                                                                                       this material at the FAA, call 206–231–3195.
                                                                                                                                                             Canada; telephone: 416–375–4000; fax:
                                                 Within 72 months after accomplishing the                Issued in Renton, Washington, on February           416–375–4539; email: thd.qseries@
                                               actions required by paragraph (g) of this AD,           20, 2018.
                                               and thereafter at intervals not to exceed 72                                                                  aero.bombardier.com; internet: http://
                                                                                                       Michael Kaszycki,                                     www.bombardier.com. You may view
                                               months, repeat the actions specified in
                                                                                                       Acting Director, System Oversight Division,           this service information at the FAA,
                                               paragraph (g) of this AD, and do all
                                                                                                       Aircraft Certification Service.                       Transport Standards Branch, 2200
                                               applicable corrective actions, in accordance
                                               with the Accomplishment Instructions of the             [FR Doc. 2018–04150 Filed 2–28–18; 8:45 am]           South 216th St., Des Moines, WA. For
                                               applicable service information identified in            BILLING CODE 4910–13–P                                information on the availability of this
                                               paragraph (g)(1), (g)(2), or (g)(3) of this AD.                                                               material at the FAA, call 206–231–3195.
                                               Do all applicable corrective actions before
                                               further flight.                                         DEPARTMENT OF TRANSPORTATION                          Examining the AD Docket
                                               (i) Other FAA AD Provisions                                                                                     You may examine the AD docket on
                                                                                                       Federal Aviation Administration
                                                  (1) Alternative Methods of Compliance                                                                      the internet at http://
                                               (AMOCs): The Manager, International                                                                           www.regulations.gov by searching for
                                                                                                       14 CFR Part 39
                                               Section, Transport Standards Branch, FAA,                                                                     and locating Docket No. FAA–2018–
                                               has the authority to approve AMOCs for this             [Docket No. FAA–2018–0118; Product                    0118; or in person at the Docket
                                               AD, if requested using the procedures found             Identifier 2017–NM–083–AD]                            Management Facility between 9 a.m.
                                               in 14 CFR 39.19. In accordance with 14 CFR                                                                    and 5 p.m., Monday through Friday,
                                                                                                       RIN 2120–AA64
                                               39.19, send your request to your principal                                                                    except Federal holidays. The AD docket
                                               inspector or local Flight Standards District
                                                                                                       Airworthiness Directives; Bombardier,                 contains this NPRM, the regulatory
                                               Office, as appropriate. If sending information
                                               directly to the International Section, send it          Inc., Airplanes                                       evaluation, any comments received, and
                                               to the attention of the person identified in                                                                  other information. The street address for
                                                                                                       AGENCY: Federal Aviation                              the Docket Operations office (telephone:
                                               paragraph (j)(2) of this AD. Information may            Administration (FAA), DOT.
                                               be emailed to: 9-ANM-116-AMOC-                                                                                800–647–5527) is in the ADDRESSES
                                               REQUESTS@faa.gov.                                       ACTION: Notice of proposed rulemaking                 section. Comments will be available in
                                                  (i) Before using any approved AMOC,                  (NPRM).                                               the AD docket shortly after receipt.
                                               notify your appropriate principal inspector,
                                                                                                       SUMMARY:   We propose to adopt a new                  FOR FURTHER INFORMATION CONTACT:
                                               or lacking a principal inspector, the manager
                                               of the local flight standards district office/          airworthiness directive (AD) for certain              Assata Dessaline, Aerospace Engineer,
                                               certificate holding district office.                    Bombardier, Inc., Model DHC–8–400                     Avionics and Administrative Services
                                                  (ii) AMOCs approved previously for AD                series airplanes. This proposed AD was                Section, FAA, New York ACO Branch,
                                               2017–01–07, Amendment 39–18774 (82 FR                   prompted by reports of arcing and                     1600 Stewart Avenue, Suite 410,
                                               1595, January 6, 2017), are approved as                 smoke emanating from the windshields.                 Westbury, NY 11590; telephone: 516–
                                               AMOCs for the corresponding provisions of               This proposed AD would require a                      228–7301; fax: 516–794–5531.
                                               this AD.                                                revision to the maintenance or                        SUPPLEMENTARY INFORMATION:
                                                  (2) Contacting the Manufacturer: As of the
                                                                                                       inspection program, as applicable, to
                                               effective date of this AD, for any requirement                                                                Comments Invited
                                               in this AD to obtain corrective actions from            include an inspection of the windshield
                                               a manufacturer, the action must be                      moisture seal for signs of cracks,                      We invite you to send any written
                                               accomplished using a method approved by                 erosion, wear, and other deterioration;               relevant data, views, or arguments about
                                               the Manager, International Section, Transport           doing that inspection and repair if                   this proposal. Send your comments to
                                               Standards Branch, FAA; or the European                  necessary; and re-torqueing the                       an address listed under the ADDRESSES
                                               Aviation Safety Agency (EASA); or Dassault              windshield heater terminal lugs and                   section. Include ‘‘Docket No. FAA–
                                               Aviation’s EASA Design Organization                     applying sealant to the windshield                    2018–0118; Product Identifier 2017–
                                               Approval (DOA). If approved by the DOA,                 heater screw heads. We are proposing                  NM–083–AD’’ at the beginning of your
                                               the approval must include the DOA-
                                                                                                       this AD to address the unsafe condition               comments. We specifically invite
                                               authorized signature.
                                                                                                       on these products.                                    comments on the overall regulatory,
                                               (j) Related Information                                 DATES: We must receive comments on                    economic, environmental, and energy
                                                  (1) Refer to Mandatory Continuing                    this proposed AD by April 16, 2018.                   aspects of this NPRM. We will consider
                                               Airworthiness Information (MCAI) EASA AD                ADDRESSES: You may send comments,                     all comments received by the closing
                                               2017–0123, dated July 20, 2017, for related             using the procedures found in 14 CFR                  date and may amend this NPRM based
                                               information. This MCAI may be found in the
amozie on DSK30RV082PROD with PROPOSALS




                                                                                                       11.43 and 11.45, by any of the following              on those comments.
                                               AD docket on the internet at http://                                                                             We will post all comments we
                                               www.regulations.gov by searching for and                methods:
                                               locating Docket No. FAA–2018–0117.                        • Federal eRulemaking Portal: Go to                 receive, without change, to http://
                                                  (2) For more information about this AD,              http://www.regulations.gov. Follow the                www.regulations.gov, including any
                                               contact Tom Rodriguez, Aerospace Engineer,              instructions for submitting comments.                 personal information you provide. We
                                               International Section, Transport Standards                • Fax: 202–493–2251.                                will also post a report summarizing each
                                               Branch, FAA, Transport Standards Branch,                  • Mail: U.S. Department of                          substantive verbal contact we receive
                                               FAA, 2200 South 216th St., Des Moines, WA               Transportation, Docket Operations, M–                 about this NPRM.


                                          VerDate Sep<11>2014   16:26 Feb 28, 2018   Jkt 244001   PO 00000   Frm 00009   Fmt 4702   Sfmt 4702   E:\FR\FM\01MRP1.SGM   01MRP1


                                                                       Federal Register / Vol. 83, No. 41 / Thursday, March 1, 2018 / Proposed Rules                                                        8811

                                               Discussion                                              windshield heater terminal lugs and                     This service information is reasonably
                                                  Transport Canada Civil Aviation                      applying sealant to the windshield                    available because the interested parties
                                               (TCCA), which is the aviation authority                 heater screw heads. You may examine                   have access to it through their normal
                                               for Canada, has issued Canadian AD                      the MCAI in the AD docket on the                      course of business or by the means
                                               CF–2017–18, dated May 26, 2017                          internet at http://www.regulations.gov                identified in the ADDRESSES section.
                                               (referred to after this as the Mandatory                by searching for and locating Docket No.
                                                                                                                                                             FAA’s Determination and Requirements
                                               Continuing Airworthiness Information,                   FAA–2018–0118.
                                                                                                                                                             of This Proposed AD
                                               or ‘‘the MCAI’’), to correct an unsafe                  Related Service Information Under 1
                                               condition for certain Bombardier, Inc.,                                                                         This product has been approved by
                                                                                                       CFR Part 51
                                               Model DHC–8–400 series airplanes. The                                                                         the aviation authority of another
                                               MCAI states:                                              Bombardier, Inc., has issued Service                country, and is approved for operation
                                                                                                       Bulletin 84–30–16, Revision A, dated                  in the United States. Pursuant to our
                                                 There have been numerous reports of                   September 27, 2017. This service                      bilateral agreement with the State of
                                               arcing and smoke emanating from the
                                               windshields. Review of these incidents
                                                                                                       information describes procedures for re-              Design Authority, we have been notified
                                               revealed that the windshield heater terminal            torqueing the screws that fasten the                  of the unsafe condition described in the
                                               lugs tend to loosen over time. Loose terminal           windshield heater terminal lugs and                   MCAI and service information
                                               lugs could create sparks that lead to burning           applying sealant to the screw heads.                  referenced above. We are proposing this
                                               of the lugs and, due to the excessive heat,               Bombardier, Inc., has also issued                   AD because we evaluated all pertinent
                                               cracking of the windshields. If not corrected,          Q400 Dash 8 Temporary Revision MRB–                   information and determined an unsafe
                                               this condition could cause a loss of cabin              0099, dated December 9, 2016, to Part 1               condition exists and is likely to exist or
                                               pressure resulting in an emergency descent.             of Bombardier, Inc., Q400 Dash 8                      develop on other products of the same
                                                 Required actions include a revision to                Maintenance Requirements Manual                       type design.
                                               the maintenance or inspection program,                  (MRM), PSM 1–84–7. This temporary
                                                                                                                                                             Costs of Compliance
                                               as applicable, to include an inspection                 revision describes procedures for
                                               of the windshield moisture seal for signs               inspecting the moisture seal for the left                We estimate that this proposed AD
                                               of cracks, erosion, wear, or other                      and right windshields for signs of                    affects 54 airplanes of U.S. registry.
                                               deterioration; doing that inspection and                cracks, erosion, wear, and other                         We estimate the following costs to
                                               repair if necessary; and re-torqueing the               deterioration.                                        comply with this proposed AD:

                                                                                                                    ESTIMATED COSTS
                                                                                                                                                                            Cost per                 Cost on
                                                                  Action                                         Labor cost                         Parts cost              product               U.S. operators

                                               Revision/Inspection/Retorque/Seal ..........       Up to 4 work-hours × $85 per hour =                            $0   Up to $340 .............   Up to $18,360.
                                                                                                    $340.



                                                 We have received no definitive data                   the Executive Director, Aircraft                        3. Will not affect intrastate aviation in
                                               that would enable us to provide a cost                  Certification Service, as authorized by               Alaska; and
                                               estimate for the on-condition repair                    FAA Order 8000.51C. In accordance                       4. Will not have a significant
                                               specified in this proposed AD.                          with that order, issuance of ADs is                   economic impact, positive or negative,
                                                                                                       normally a function of the Compliance                 on a substantial number of small entities
                                               Authority for This Rulemaking
                                                                                                       and Airworthiness Division, but during                under the criteria of the Regulatory
                                                  Title 49 of the United States Code                   this transition period, the Executive                 Flexibility Act.
                                               specifies the FAA’s authority to issue                  Director has delegated the authority to
                                               rules on aviation safety. Subtitle I,                   issue ADs applicable to transport                     List of Subjects in 14 CFR Part 39
                                               section 106, describes the authority of                 category airplanes to the Director of the
                                               the FAA Administrator. ‘‘Subtitle VII:                                                                          Air transportation, Aircraft, Aviation
                                                                                                       System Oversight Division.                            safety, Incorporation by reference,
                                               Aviation Programs,’’ describes in more
                                               detail the scope of the Agency’s                        Regulatory Findings                                   Safety.
                                               authority.                                                We determined that this proposed AD                 The Proposed Amendment
                                                  We are issuing this rulemaking under                 would not have federalism implications
                                               the authority described in ‘‘Subtitle VII,                                                                      Accordingly, under the authority
                                                                                                       under Executive Order 13132. This
                                               Part A, Subpart III, Section 44701:                                                                           delegated to me by the Administrator,
                                                                                                       proposed AD would not have a
                                               General requirements.’’ Under that                                                                            the FAA proposes to amend 14 CFR part
                                                                                                       substantial direct effect on the States, on
                                               section, Congress charges the FAA with                                                                        39 as follows:
                                                                                                       the relationship between the national
                                               promoting safe flight of civil aircraft in              Government and the States, or on the
                                               air commerce by prescribing regulations                                                                       PART 39—AIRWORTHINESS
                                                                                                       distribution of power and                             DIRECTIVES
                                               for practices, methods, and procedures                  responsibilities among the various
                                               the Administrator finds necessary for                   levels of government.                                 ■ 1. The authority citation for part 39
amozie on DSK30RV082PROD with PROPOSALS




                                               safety in air commerce. This regulation
                                                                                                         For the reasons discussed above, I                  continues to read as follows:
                                               is within the scope of that authority
                                                                                                       certify this proposed regulation:                          Authority: 49 U.S.C. 106(g), 40113, 44701.
                                               because it addresses an unsafe condition
                                               that is likely to exist or develop on                     1. Is not a ‘‘significant regulatory
                                                                                                       action’’ under Executive Order 12866;                 § 39.13      [Amended]
                                               products identified in this rulemaking
                                               action.                                                   2. Is not a ‘‘significant rule’’ under the          ■ 2. The FAA amends § 39.13 by adding
                                                  This proposed AD is issued in                        DOT Regulatory Policies and Procedures                the following new airworthiness
                                               accordance with authority delegated by                  (44 FR 11034, February 26, 1979);                     directive (AD):


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                                               8812                    Federal Register / Vol. 83, No. 41 / Thursday, March 1, 2018 / Proposed Rules

                                               Bombardier, Inc.: Docket No. FAA–2018–                    Note 1 to paragraph (i) of this AD:                 Moines, WA. For information on the
                                                  0118; Product Identifier 2017–NM–083–                Additional guidance for repair of the                 availability of this material at the FAA, call
                                                  AD.                                                  moisture seal can be found in PPG Aerospace           206–231–3195.
                                                                                                       Transparencies Abbreviated Component
                                               (a) Comments Due Date                                                                                           Issued in Renton, Washington, on February
                                                                                                       Maintenance Manual, Part Number NP–
                                                 We must receive comments by April 16,                                                                       21, 2018.
                                                                                                       157901, dated June 16, 2015.
                                               2018.                                                                                                         Michael Kaszycki,
                                                                                                       (j) Re-Torqueing and Sealing Screws                   Acting Director, System Oversight Division,
                                               (b) Affected ADs
                                                                                                          Within 8,000 flight hours or 60 months             Aircraft Certification Service.
                                                 None.                                                 after the effective date of this AD, whichever        [FR Doc. 2018–04149 Filed 2–28–18; 8:45 am]
                                               (c) Applicability                                       occurs first: Re-torque the windshield heater         BILLING CODE 4910–13–P
                                                                                                       terminal lug screws for the left and right
                                                  This AD applies to Bombardier, Inc.,
                                                                                                       windshields and apply Humiseal to the
                                               Model DHC–8–400, –401, and –402
                                               airplanes, certificated in any category, serial         screw heads of the windshield heaters, in
                                                                                                       accordance with the Accomplishment                    DEPARTMENT OF COMMERCE
                                               numbers 4001 through 4524 inclusive.
                                                                                                       Instructions of Bombardier Service Bulletin
                                               (d) Subject                                             84–30–16, Revision A, dated September 27,             National Oceanic and Atmospheric
                                                 Air Transport Association (ATA) of                    2017.                                                 Administration
                                               America Code 30, Ice and Rain Protection.               (k) Other FAA AD Provisions
                                                                                                                                                             15 CFR Part 922
                                               (e) Reason                                                 The following provisions also apply to this
                                                  This AD was prompted by reports of arcing            AD:                                                   RIN 0648–XF789
                                               and smoke emanating from the windshields.                  (1) Alternative Methods of Compliance
                                               We are issuing this AD to detect and correct            (AMOCs): The Manager, New York ACO                    Plan for Periodic Review of
                                               loose windshield heater terminal lugs. Loose            Branch, FAA, has the authority to approve             Regulations
                                               terminal lugs could create sparks that lead to          AMOCs for this AD, if requested using the
                                               burning of the lugs and, due to the excessive           procedures found in 14 CFR 39.19. In                  AGENCY:  Office of National Marine
                                               heat, cracking of the windshields. If not               accordance with 14 CFR 39.19, send your               Sanctuaries (ONMS), National Ocean
                                               corrected, such a condition could cause a               request to your principal inspector or local          Service (NOS), National Oceanic and
                                               loss of cabin pressure resulting in an                  Flight Standards District Office, as                  Atmospheric Administration (NOAA),
                                               emergency descent.                                      appropriate. If sending information directly          Department of Commerce (DOC).
                                                                                                       to the manager of the certification office,
                                               (f) Compliance                                                                                                ACTION: Notification of plan for periodic
                                                                                                       send it to ATTN: Program Manager,
                                                  Comply with this AD within the                       Continuing Operational Safety, FAA, New               review of regulations; request for
                                               compliance times specified, unless already              York ACO Branch, 1600 Stewart Avenue,                 comments.
                                               done.                                                   Suite 410, Westbury, NY 11590; telephone:
                                                                                                       516–228–7300; fax: 516–794–5531. Before               SUMMARY:   Regulatory Flexibility Act
                                               (g) Revision to Inspection or Maintenance                                                                     (RFA) section 610 requires that NOAA
                                               Program                                                 using any approved AMOC, notify your
                                                                                                       appropriate principal inspector, or lacking a         Office of National Marine Sanctuaries
                                                  Within 30 days after the effective date of           principal inspector, the manager of the local         (ONMS) periodically review existing
                                               this AD: Revise the maintenance or                      flight standards district office/certificate          regulations that have a significant
                                               inspection program, as applicable, to                   holding district office.
                                               incorporate the task specified in Q400 Dash                                                                   economic impact on a substantial
                                                                                                          (2) Contacting the Manufacturer: For any           number of small entities, such as small
                                               8 (Bombardier) Temporary Revision (TR)
                                                                                                       requirement in this AD to obtain corrective           businesses, small organizations, and
                                               MRB–0099, dated December 9, 2016, into
                                                                                                       actions from a manufacturer, the action must
                                               Part 1 of Bombardier, Inc., Q400 Dash 8                                                                       small governmental jurisdictions. This
                                                                                                       be accomplished using a method approved
                                               Maintenance Requirements Manual (MRM),                                                                        plan describes how ONMS will perform
                                                                                                       by the Manager, New York ACO Branch,
                                               PSM 1–84–7.                                                                                                   this review and describes the
                                                                                                       FAA; or TCCA; or Bombardier, Inc.’s TCCA
                                               (h) No Alternative Actions and Intervals                DAO. If approved by the DAO, the approval             regulations proposed for review in 2018.
                                                 After the maintenance or inspection                   must include the DAO-authorized signature.            DATES: Comments must be received on
                                               program has been revised as required by                 (l) Related Information                               or before April 2, 2018.
                                               paragraph (g) of this AD, no alternative                                                                      ADDRESSES: Comments may be
                                               actions (e.g., inspections), intervals, may be             (1) Refer to Mandatory Continuing
                                                                                                       Airworthiness Information (MCAI) Canadian             submitted by:
                                               used unless the actions and intervals are
                                               approved as an alternative method of                    AD CF–2017–18, dated May 26, 2017, for                  • Electronic Submission: Submit all
                                               compliance (AMOC) in accordance with the                related information. This MCAI may be                 electronic public comments via the
                                               procedures specified in paragraph (k)(1) of             found in the AD docket on the internet at             Federal eRulemaking Portal. Go to
                                               this AD.                                                http://www.regulations.gov by searching for           http://www.regulations.gov/#!docket
                                                                                                       and locating Docket No. FAA–2018–0118.                Detail;D=NOAA-NOS-2017-0133, click
                                               (i) Inspection and Corrective Action                       (2) For more information about this AD,
                                                                                                                                                             the ‘‘Comment Now!’’ icon, complete
                                                  Within 1,600 flight hours or 12 months               contact Assata Dessaline, Aerospace
                                                                                                       Engineer, Avionics and Administrative                 the required fields, and enter or attach
                                               after the effective date of this AD, whichever
                                               occurs first, do a general visual inspection of         Services Section, FAA, New York ACO                   your comments.
                                               the moisture seal on the left and right                 Branch, 1600 Stewart Avenue, Suite 410,                 Instructions: Comments sent by any
                                               windshields for signs of cracks, erosion,               Westbury, NY 11590; telephone: 516–228–               other method, to any other address or
                                               wear, and other deterioration (including                7301; fax: 516–794–5531.                              individual, or received after the end of
                                               discoloration, warping, or missing material).              (3) For service information identified in          the comment period, may not be
                                                                                                       this AD, contact Bombardier, Inc., Q-Series
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                                               If any crack, erosion, wear, or other                                                                         considered by NOAA. All comments
                                               deterioration is found, before further flight,          Technical Help Desk, 123 Garratt Boulevard,           received are a part of the public record
                                               repair the moisture seal in accordance with             Toronto, Ontario M3K 1Y5, Canada;
                                                                                                                                                             and will generally be posted for public
                                               a method approved by the Manager, New                   telephone: 416–375–4000; fax: 416–375–
                                               York ACO Branch, FAA; or Transport Canada               4539; email: thd.qseries@                             viewing on www.regulations.gov
                                               Civil Aviation (TCCA); or Bombardier, Inc.’s            aero.bombardier.com; internet: http://                without change. All personally
                                               TCCA Design Approval Organization (DAO).                www.bombardier.com. You may view this                 identifiable information (for example,
                                               If approved by the DAO, the approval must               service information at the FAA, Transport             name, address, etc.), confidential
                                               include the DAO-authorized signature.                   Standards Branch, 2200 South 216th St., Des           business information, or otherwise


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Document Created: 2018-02-28 23:58:03
Document Modified: 2018-02-28 23:58:03
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionNotice of proposed rulemaking (NPRM).
DatesWe must receive comments on this proposed AD by April 16, 2018.
ContactAssata Dessaline, Aerospace Engineer, Avionics and Administrative Services Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone: 516-228- 7301; fax: 516-794-5531.
FR Citation83 FR 8810 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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