83_FR_5611 83 FR 5584 - Airworthiness Directives; Airbus Airplanes

83 FR 5584 - Airworthiness Directives; Airbus Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 27 (February 8, 2018)

Page Range5584-5587
FR Document2018-02018

We propose to adopt a new airworthiness directive (AD) for all Airbus Model A310-203, -221, -222, -304, -322, -324, and -325 airplanes. This proposed AD was prompted by a design approval holder (DAH) evaluation indicating that the outer wing lower junction is subject to widespread fatigue damage (WFD). This proposed AD would require modifying the fastener holes at certain locations, which includes related investigative actions and applicable corrective actions. We are proposing this AD to address the unsafe condition on these products.

Federal Register, Volume 83 Issue 27 (Thursday, February 8, 2018)
[Federal Register Volume 83, Number 27 (Thursday, February 8, 2018)]
[Proposed Rules]
[Pages 5584-5587]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-02018]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0025; Product Identifier 2017-NM-101-AD]
RIN 2120-AA64


Airworthiness Directives; Airbus Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for all 
Airbus Model A310-203, -221, -222, -304, -322, -324, and -325 
airplanes. This proposed AD was prompted by a design approval holder 
(DAH) evaluation indicating that the outer wing lower junction is 
subject to widespread fatigue damage (WFD). This proposed AD would 
require modifying the fastener holes at certain locations, which 
includes related investigative actions and applicable corrective 
actions. We are proposing this AD to address the unsafe condition on 
these products.

DATES: We must receive comments on this proposed AD by March 26, 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 Airbus 
SAS, Airworthiness Office--EAW, 1 Rond Point Maurice Bellonte, 31707 
Blagnac Cedex, France; telephone: +33 5 61 93 36 96; fax: +33 5 61 93 
44 51; email: [email protected]; internet: http://www.airbus.com. You may view this service information at the FAA, 
Transport Standards Branch, 1601 Lind Avenue SW, Renton, WA. For 
information on the availability of this material at the FAA, call 425-
227-1221.

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-
0025; 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: Dan Rodina, Aerospace Engineer, 
International Section, Transport Standards Branch, FAA, 1601 Lind 
Avenue SW, Renton, WA 98057-3356; telephone: 425-227-2125; fax: 425-
227-1149.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2018-0025; 
Product Identifier 2017-NM-101-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.

Discussion

    Fatigue damage can occur locally, in small areas or structural 
design details, or globally, in widespread areas. Multiple-site damage 
is widespread damage that occurs in a large structural element such as 
a single rivet line of a lap splice joining two large skin panels. 
Widespread damage can also occur in multiple elements such as adjacent 
frames or stringers. Multiple-site damage and multiple-element damage 
cracks are typically too small initially to be reliably detected with 
normal inspection methods. Without intervention, these cracks will 
grow, and eventually compromise the structural integrity of the 
airplane. This condition is known as widespread fatigue damage. It is 
associated with general degradation of large areas of structure with 
similar structural details and stress levels. As an airplane ages, WFD 
will likely occur, and will certainly occur if the airplane is operated 
long enough without any intervention.
    The FAA's WFD final rule (75 FR 69746, November 15, 2010) became 
effective on January 14, 2011. The WFD rule requires certain actions to 
prevent structural failure due to WFD throughout the operational life 
of certain existing transport category airplanes and all of these 
airplanes that will be certificated in the future. For existing and 
future airplanes subject to the WFD rule, the rule requires that DAHs 
establish a limit of validity (LOV) of the engineering data that 
support the structural maintenance program. Operators affected by the 
WFD rule may not fly an airplane beyond its LOV, unless an extended LOV 
is approved.
    The WFD rule (75 FR 69746, November 15, 2010) does not require 
identifying and developing maintenance actions if the DAHs can show 
that such actions are not necessary to prevent WFD before the airplane 
reaches the LOV. Many LOVs, however, do depend on accomplishment of 
future maintenance actions. As stated in the WFD rule, any maintenance 
actions necessary to reach the LOV will be mandated by airworthiness 
directives through separate rulemaking actions.
    In the context of WFD, this action is necessary to enable DAHs to 
propose LOVs that allow operators the longest operational lives for 
their airplanes, and still ensure that WFD will not occur. This 
approach allows for an implementation strategy that provides 
flexibility to DAHs in determining the timing of service information 
development (with FAA approval), while providing operators with 
certainty

[[Page 5585]]

regarding the LOV applicable to their airplanes.
    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Union, has issued EASA AD 
2017-0122, dated July 18, 2017 (referred to after this as the Mandatory 
Continuing Airworthiness Information, or ``the MCAI''), to correct an 
unsafe condition for all Airbus Model A310-203, -221, -222, -304, -308, 
-322, -324, and -325 airplanes. The MCAI states:

    In response to the FAA Part 26 rule, wing structural items of 
the Airbus A310 design were assessed regarding Widespread Fatigue 
Damage (WFD) phenomenon. One outcome was that the outer wing lower 
junction is prone to WFD at level of the first fasteners row, close 
to Rib 1 between Frame (FR) 40 and FR 47.
    This condition, if not corrected, could reduce the structural 
integrity of the wing.
    Prompted by the conclusion of WFD analysis, Airbus issued 
Service Bulletin (SB) A310-57-2105 to provide modification 
instructions. The accomplishment of this modification at the 
specified time will recondition/renovate/extend the life of the 
fasteners holes at Rib 1, in order to reach the Limit Of Validity.
    For the reasons described above, this [EASA] AD requires cold 
working of the affected holes at Rib 1, stiffeners 1 to 14, on both 
outer wings between FR 40 and FR 47.

    Required actions include a modification of the fastener holes at 
rib 1, stiffeners 1 to 14, on both outer wings between FR 40 and FR 47 
by cold-working. The modification includes related investigative 
actions and applicable corrective actions. The related investigative 
actions include a rotating probe test of the fastener holes for cracks 
and checking the hole diameter for certain diameters. The corrective 
action is repair.
    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-
0025.

Related Service Information Under 1 CFR Part 51

    Airbus has issued Service Bulletin A310-57-2105, Revision 00, dated 
November 23, 2016. The service information describes procedures for a 
modification of the fastener holes at rib 1, stiffeners 1 to 14, on 
both outer wings between FR 40 and FR 47 by cold-working and includes 
related investigative actions and corrective actions. 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 13 airplanes of U.S. 
registry.
    We estimate the following costs to comply with this proposed AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
               Action                         Labor cost            Parts  cost       product        operators
----------------------------------------------------------------------------------------------------------------
Modification, including related      66 work-hours x $85 per             $24,200         $29,810        $387,530
 investigative actions.               hour = $5,610.
----------------------------------------------------------------------------------------------------------------

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

                                               On-Condition Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                     Cost per
                    Action                                 Labor cost               Parts cost        product
----------------------------------------------------------------------------------------------------------------
Repair........................................  9 work-hours x $85 per hour =               $254          $1,019
                                                 $765.
----------------------------------------------------------------------------------------------------------------

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:

[[Page 5586]]

    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):

Airbus: Docket No. FAA-2018-0025; Product Identifier 2017-NM-101-AD.

(a) Comments Due Date

    We must receive comments by March 26, 2018.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all Airbus Model A310-203, -221, -222, -304, 
-322, -324, and -325 airplanes, certificated in any category.

(d) Subject

    Air Transport Association (ATA) of America Code 57, Wings.

(e) Reason

    This AD was prompted by a design approval holder (DAH) 
evaluation indicating that the outer wing lower junction is subject 
to widespread fatigue damage (WFD). We are issuing this AD to 
prevent WFD at the outer wing lower junction, which could result in 
reduced structural integrity of the airplane.

(f) Compliance

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

(g) Modification

    Before exceeding the compliance time specified in figure 1 to 
paragraph (g) of this AD, as applicable, or within 30 days after the 
effective date of this AD, whichever occurs later: Modify the 
fastener holes at rib 1, stiffeners 1 to 14, on both outer wings 
between frame (FR) 40 and FR 47, including doing all related 
investigative and applicable corrective actions, in accordance with 
the Accomplishment Instructions of Airbus Service Bulletin A310-57-
2105, Revision 00, dated November 23, 2016, except as required by 
paragraph (h) of this AD. Do all related investigative and 
applicable corrective actions before further flight.
[GRAPHIC] [TIFF OMITTED] TP08FE18.001

(h) Service Information Exception

    Where Airbus Service Bulletin A310-57-2105, Revision 00, dated 
November 23, 2016, specifies to contact Airbus for appropriate 
action, and specifies that action as ``RC'' (Required for 
Compliance): Before further flight, accomplish corrective actions in 
accordance with the procedures specified in paragraph (i)(2) of this 
AD.

(i) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
International Section, Transport Standards 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 International Section, send it to the attention of 
the person identified in paragraph (j)(2) of this AD. Information 
may be emailed to: [email protected]. 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, International 
Section, Transport Standards Branch, FAA; or the European Aviation 
Safety Agency (EASA); or Airbus's EASA Design Organization Approval 
(DOA). If approved by the DOA, the approval must include the DOA-
authorized signature.
    (3) Required for Compliance (RC): Except as required by 
paragraph (h) of this AD: If any service information contains 
procedures or tests that are identified as RC, those procedures and 
tests must be done to comply with this AD; any procedures or tests 
that are not identified as RC are recommended. Those procedures and 
tests that are not identified as RC may be deviated from using 
accepted methods in accordance with the operator's maintenance or 
inspection program without obtaining approval of an AMOC, provided 
the procedures and tests identified as RC can be done and the 
airplane can be put back in an airworthy condition. Any 
substitutions or changes to procedures or tests identified as RC 
require approval of an AMOC.

[[Page 5587]]

(j) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) EASA AD 2017-0122, dated July 18, 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-2018-0025.
    (2) For more information about this AD, contact Dan Rodina, 
Aerospace Engineer, International Section, Transport Standards 
Branch, FAA, 1601 Lind Avenue SW, Renton, WA 98057-3356; telephone: 
425-227-2125; fax: 425-227-1149.
    (3) For service information identified in this AD, contact 
Airbus SAS, Airworthiness Office--EAW, 1 Rond Point Maurice 
Bellonte, 31707 Blagnac Cedex, France; telephone: +33 5 61 93 36 96; 
fax: +33 5 61 93 44 51; email: [email protected]; 
internet: http://www.airbus.com. You may view this service 
information at the FAA, Transport Standards Branch, 1601 Lind Avenue 
SW, Renton, WA. For information on the availability of this material 
at the FAA, call 425-227-1221.

    Issued in Renton, Washington, on January 25, 2018.
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2018-02018 Filed 2-7-18; 8:45 am]
 BILLING CODE 4910-13-P



                                                 5584                  Federal Register / Vol. 83, No. 27 / Thursday, February 8, 2018 / Proposed Rules

                                                 International Section, Transport Standards              M–30, West Building Ground Floor,                     Discussion
                                                 Branch, FAA, 1601 Lind Avenue SW,                       Room W12–140, 1200 New Jersey
                                                 Renton, WA 98057–3356; telephone: 425–                                                                           Fatigue damage can occur locally, in
                                                                                                         Avenue SE, Washington, DC 20590.                      small areas or structural design details,
                                                 227–2125; fax: 425–227–1149.
                                                    (3) For service information identified in
                                                                                                           • Hand Delivery: Deliver to Mail                    or globally, in widespread areas.
                                                 this AD, contact Airbus SAS, Airworthiness              address above between 9 a.m. and 5                    Multiple-site damage is widespread
                                                 Office—EAW, 1 Rond Point Maurice                        p.m., Monday through Friday, except                   damage that occurs in a large structural
                                                 Bellonte, 31707 Blagnac Cedex, France;                  Federal holidays.                                     element such as a single rivet line of a
                                                 telephone: +33 5 61 93 36 96; fax: +33 5 61               For service information identified in               lap splice joining two large skin panels.
                                                 93 44 51; email: account.airworth-eas@                  this NPRM, contact Airbus SAS,
                                                 airbus.com; internet: http://www.airbus.com.                                                                  Widespread damage can also occur in
                                                                                                         Airworthiness Office—EAW, 1 Rond                      multiple elements such as adjacent
                                                 You may view this service information at the
                                                                                                         Point Maurice Bellonte, 31707 Blagnac                 frames or stringers. Multiple-site
                                                 FAA, Transport Standards Branch, 1601 Lind
                                                 Avenue SW, Renton, WA. For information on               Cedex, France; telephone: +33 5 61 93                 damage and multiple-element damage
                                                 the availability of this material at the FAA,           36 96; fax: +33 5 61 93 44 51; email:                 cracks are typically too small initially to
                                                 call 425–227–1221.                                      account.airworth-eas@airbus.com;                      be reliably detected with normal
                                                   Issued in Renton, Washington, on January
                                                                                                         internet: http://www.airbus.com. You                  inspection methods. Without
                                                 25, 2018.                                               may view this service information at the              intervention, these cracks will grow,
                                                 Michael Kaszycki,                                       FAA, Transport Standards Branch, 1601                 and eventually compromise the
                                                                                                         Lind Avenue SW, Renton, WA. For                       structural integrity of the airplane. This
                                                 Acting Director, System Oversight Division,
                                                 Aircraft Certification Service.                         information on the availability of this               condition is known as widespread
                                                                                                         material at the FAA, call 425–227–1221.               fatigue damage. It is associated with
                                                 [FR Doc. 2018–02084 Filed 2–7–18; 8:45 am]
                                                 BILLING CODE 4910–13–P                                  Examining the AD Docket                               general degradation of large areas of
                                                                                                                                                               structure with similar structural details
                                                                                                            You may examine the AD docket on                   and stress levels. As an airplane ages,
                                                                                                         the internet at http://                               WFD will likely occur, and will
                                                 DEPARTMENT OF TRANSPORTATION
                                                                                                         www.regulations.gov by searching for                  certainly occur if the airplane is
                                                 Federal Aviation Administration                         and locating Docket No. FAA–2018–                     operated long enough without any
                                                                                                         0025; or in person at the Docket                      intervention.
                                                 14 CFR Part 39                                          Management Facility between 9 a.m.                       The FAA’s WFD final rule (75 FR
                                                                                                         and 5 p.m., Monday through Friday,                    69746, November 15, 2010) became
                                                 [Docket No. FAA–2018–0025; Product                      except Federal holidays. The AD docket
                                                 Identifier 2017–NM–101–AD]                                                                                    effective on January 14, 2011. The WFD
                                                                                                         contains this NPRM, the regulatory                    rule requires certain actions to prevent
                                                 RIN 2120–AA64                                           evaluation, any comments received, and                structural failure due to WFD
                                                                                                         other information. The street address for             throughout the operational life of
                                                 Airworthiness Directives; Airbus                        the Docket Operations office (telephone:
                                                 Airplanes                                                                                                     certain existing transport category
                                                                                                         800–647–5527) is in the ADDRESSES                     airplanes and all of these airplanes that
                                                 AGENCY: Federal Aviation                                section. Comments will be available in                will be certificated in the future. For
                                                 Administration (FAA), DOT.                              the AD docket shortly after receipt.                  existing and future airplanes subject to
                                                 ACTION: Notice of proposed rulemaking                   FOR FURTHER INFORMATION CONTACT: Dan                  the WFD rule, the rule requires that
                                                 (NPRM).                                                 Rodina, Aerospace Engineer,                           DAHs establish a limit of validity (LOV)
                                                                                                         International Section, Transport                      of the engineering data that support the
                                                 SUMMARY:   We propose to adopt a new                    Standards Branch, FAA, 1601 Lind                      structural maintenance program.
                                                 airworthiness directive (AD) for all                    Avenue SW, Renton, WA 98057–3356;                     Operators affected by the WFD rule may
                                                 Airbus Model A310–203, –221, –222,                      telephone: 425–227–2125; fax: 425–                    not fly an airplane beyond its LOV,
                                                 –304, –322, –324, and –325 airplanes.                   227–1149.                                             unless an extended LOV is approved.
                                                 This proposed AD was prompted by a                      SUPPLEMENTARY INFORMATION:                               The WFD rule (75 FR 69746,
                                                 design approval holder (DAH)                                                                                  November 15, 2010) does not require
                                                 evaluation indicating that the outer                    Comments Invited                                      identifying and developing maintenance
                                                 wing lower junction is subject to                          We invite you to send any written                  actions if the DAHs can show that such
                                                 widespread fatigue damage (WFD). This                   relevant data, views, or arguments about              actions are not necessary to prevent
                                                 proposed AD would require modifying                     this proposed AD. Send your comments                  WFD before the airplane reaches the
                                                 the fastener holes at certain locations,                to an address listed under the                        LOV. Many LOVs, however, do depend
                                                 which includes related investigative                    ADDRESSES section. Include ‘‘Docket No.               on accomplishment of future
                                                 actions and applicable corrective                       FAA–2018–0025; Product Identifier                     maintenance actions. As stated in the
                                                 actions. We are proposing this AD to                    2017–NM–101–AD’’ at the beginning of                  WFD rule, any maintenance actions
                                                 address the unsafe condition on these                   your comments. We specifically invite                 necessary to reach the LOV will be
                                                 products.                                               comments on the overall regulatory,                   mandated by airworthiness directives
                                                 DATES: We must receive comments on                      economic, environmental, and energy                   through separate rulemaking actions.
                                                 this proposed AD by March 26, 2018.                     aspects of this NPRM. We will consider                   In the context of WFD, this action is
                                                 ADDRESSES: You may send comments,                       all comments received by the closing                  necessary to enable DAHs to propose
                                                 using the procedures found in 14 CFR                    date and may amend this NPRM based                    LOVs that allow operators the longest
daltland on DSKBBV9HB2PROD with PROPOSALS




                                                 11.43 and 11.45, by any of the following                on those comments.                                    operational lives for their airplanes, and
                                                 methods:                                                   We will post all comments we                       still ensure that WFD will not occur.
                                                   • Federal eRulemaking Portal: Go to                   receive, without change, to http://                   This approach allows for an
                                                 http://www.regulations.gov. Follow the                  www.regulations.gov, including any                    implementation strategy that provides
                                                 instructions for submitting comments.                   personal information you provide. We                  flexibility to DAHs in determining the
                                                   • Fax: 202–493–2251.                                  will also post a report summarizing each              timing of service information
                                                   • Mail: U.S. Department of                            substantive verbal contact we receive                 development (with FAA approval),
                                                 Transportation, Docket Operations,                      about this NPRM.                                      while providing operators with certainty


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                                                                               Federal Register / Vol. 83, No. 27 / Thursday, February 8, 2018 / Proposed Rules                                                            5585

                                                 regarding the LOV applicable to their                                     affected holes at Rib 1, stiffeners 1 to 14, on            actions. This service information is
                                                 airplanes.                                                                both outer wings between FR 40 and FR 47.                  reasonably available because the
                                                   The European Aviation Safety Agency                                        Required actions include a                              interested parties have access to it
                                                 (EASA), which is the Technical Agent                                      modification of the fastener holes at rib                  through their normal course of business
                                                 for the Member States of the European                                     1, stiffeners 1 to 14, on both outer wings                 or by the means identified in the
                                                 Union, has issued EASA AD 2017–0122,                                      between FR 40 and FR 47 by cold-                           ADDRESSES section.
                                                 dated July 18, 2017 (referred to after this                               working. The modification includes
                                                 as the Mandatory Continuing                                               related investigative actions and                          FAA’s Determination and Requirements
                                                 Airworthiness Information, or ‘‘the                                       applicable corrective actions. The                         of This Proposed AD
                                                 MCAI’’), to correct an unsafe condition                                   related investigative actions include a
                                                 for all Airbus Model A310–203, –221,                                                                                                   This product has been approved by
                                                                                                                           rotating probe test of the fastener holes
                                                 –222, –304, –308, –322, –324, and –325                                                                                               the aviation authority of another
                                                                                                                           for cracks and checking the hole
                                                 airplanes. The MCAI states:                                                                                                          country, and is approved for operation
                                                                                                                           diameter for certain diameters. The
                                                                                                                                                                                      in the United States. Pursuant to our
                                                    In response to the FAA Part 26 rule, wing                              corrective action is repair.
                                                 structural items of the Airbus A310 design                                   You may examine the MCAI in the                         bilateral agreement with the State of
                                                 were assessed regarding Widespread Fatigue                                AD docket on the internet at http://                       Design Authority, we have been notified
                                                 Damage (WFD) phenomenon. One outcome                                      www.regulations.gov by searching for                       of the unsafe condition described in the
                                                 was that the outer wing lower junction is                                 and locating Docket No. FAA–2018–                          MCAI and service information
                                                 prone to WFD at level of the first fasteners                                                                                         referenced above. We are proposing this
                                                 row, close to Rib 1 between Frame (FR) 40
                                                                                                                           0025.
                                                 and FR 47.
                                                                                                                                                                                      AD because we evaluated all pertinent
                                                                                                                           Related Service Information Under 1                        information and determined an unsafe
                                                    This condition, if not corrected, could                                CFR Part 51
                                                 reduce the structural integrity of the wing.                                                                                         condition exists and is likely to exist or
                                                    Prompted by the conclusion of WFD                                         Airbus has issued Service Bulletin                      develop on other products of the same
                                                 analysis, Airbus issued Service Bulletin (SB)                             A310–57–2105, Revision 00, dated                           type design.
                                                 A310–57–2105 to provide modification                                      November 23, 2016. The service
                                                 instructions. The accomplishment of this                                  information describes procedures for a                     Costs of Compliance
                                                 modification at the specified time will                                   modification of the fastener holes at rib
                                                 recondition/renovate/extend the life of the                                                                                             We estimate that this proposed AD
                                                 fasteners holes at Rib 1, in order to reach the                           1, stiffeners 1 to 14, on both outer wings
                                                                                                                                                                                      affects 13 airplanes of U.S. registry.
                                                 Limit Of Validity.                                                        between FR 40 and FR 47 by cold-
                                                    For the reasons described above, this                                  working and includes related                                  We estimate the following costs to
                                                 [EASA] AD requires cold working of the                                    investigative actions and corrective                       comply with this proposed AD:

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

                                                 Modification, including related investigative                           66 work-hours × $85 per hour = $5,610 ........                   $24,200          $29,810       $387,530
                                                  actions.



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

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

                                                 Repair ...........................................................................   9 work-hours × $85 per hour = $765 ...........................          $254         $1,019



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


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                                                 5586                  Federal Register / Vol. 83, No. 27 / Thursday, February 8, 2018 / Proposed Rules

                                                   1. Is not a ‘‘significant regulatory                  PART 39—AIRWORTHINESS                                 (e) Reason
                                                 action’’ under Executive Order 12866;                   DIRECTIVES                                               This AD was prompted by a design
                                                   2. Is not a ‘‘significant rule’’ under the                                                                  approval holder (DAH) evaluation indicating
                                                                                                         ■ 1. The authority citation for part 39               that the outer wing lower junction is subject
                                                 DOT Regulatory Policies and Procedures
                                                                                                         continues to read as follows:                         to widespread fatigue damage (WFD). We are
                                                 (44 FR 11034, February 26, 1979);                                                                             issuing this AD to prevent WFD at the outer
                                                                                                             Authority: 49 U.S.C. 106(g), 40113, 44701.
                                                   3. Will not affect intrastate aviation in                                                                   wing lower junction, which could result in
                                                 Alaska; and                                             § 39.13   [Amended]                                   reduced structural integrity of the airplane.
                                                   4. Will not have a significant                        ■ 2. The FAA amends § 39.13 by adding                 (f) Compliance
                                                 economic impact, positive or negative,                  the following new airworthiness                          Comply with this AD within the
                                                 on a substantial number of small entities               directive (AD):                                       compliance times specified, unless already
                                                 under the criteria of the Regulatory                    Airbus: Docket No. FAA–2018–0025; Product             done.
                                                 Flexibility Act.                                            Identifier 2017–NM–101–AD.                        (g) Modification
                                                 List of Subjects in 14 CFR Part 39                      (a) Comments Due Date                                    Before exceeding the compliance time
                                                                                                           We must receive comments by March 26,               specified in figure 1 to paragraph (g) of this
                                                   Air transportation, Aircraft, Aviation                2018.                                                 AD, as applicable, or within 30 days after the
                                                 safety, Incorporation by reference,                                                                           effective date of this AD, whichever occurs
                                                                                                         (b) Affected ADs                                      later: Modify the fastener holes at rib 1,
                                                 Safety.                                                                                                       stiffeners 1 to 14, on both outer wings
                                                                                                           None.
                                                 The Proposed Amendment                                                                                        between frame (FR) 40 and FR 47, including
                                                                                                         (c) Applicability                                     doing all related investigative and applicable
                                                   Accordingly, under the authority                         This AD applies to all Airbus Model A310–          corrective actions, in accordance with the
                                                 delegated to me by the Administrator,                   203, –221, –222, –304, –322, –324, and –325           Accomplishment Instructions of Airbus
                                                                                                         airplanes, certificated in any category.              Service Bulletin A310–57–2105, Revision 00,
                                                 the FAA proposes to amend 14 CFR part                                                                         dated November 23, 2016, except as required
                                                 39 as follows:                                          (d) Subject                                           by paragraph (h) of this AD. Do all related
                                                                                                           Air Transport Association (ATA) of                  investigative and applicable corrective
                                                                                                         America Code 57, Wings.                               actions before further flight.




                                                 (h) Service Information Exception                       Office, as appropriate. If sending information        the approval must include the DOA-
                                                    Where Airbus Service Bulletin A310–57–               directly to the International Section, send it        authorized signature.
                                                 2105, Revision 00, dated November 23, 2016,             to the attention of the person identified in            (3) Required for Compliance (RC): Except
                                                 specifies to contact Airbus for appropriate             paragraph (j)(2) of this AD. Information may          as required by paragraph (h) of this AD: If
                                                 action, and specifies that action as ‘‘RC’’             be emailed to: 9-ANM-116-AMOC-                        any service information contains procedures
                                                 (Required for Compliance): Before further               REQUESTS@faa.gov. Before using any                    or tests that are identified as RC, those
                                                 flight, accomplish corrective actions in                approved AMOC, notify your appropriate                procedures and tests must be done to comply
                                                 accordance with the procedures specified in             principal inspector, or lacking a principal           with this AD; any procedures or tests that are
                                                 paragraph (i)(2) of this AD.                            inspector, the manager of the local flight            not identified as RC are recommended. Those
                                                 (i) Other FAA AD Provisions                             standards district office/certificate holding         procedures and tests that are not identified
                                                                                                         district office.                                      as RC may be deviated from using accepted
                                                    The following provisions also apply to this
                                                                                                           (2) Contacting the Manufacturer: For any
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                                                 AD:                                                                                                           methods in accordance with the operator’s
                                                    (1) Alternative Methods of Compliance                requirement in this AD to obtain corrective           maintenance or inspection program without
                                                 (AMOCs): The Manager, International                     actions from a manufacturer, the action must          obtaining approval of an AMOC, provided
                                                 Section, Transport Standards Branch, FAA,               be accomplished using a method approved               the procedures and tests identified as RC can
                                                 has the authority to approve AMOCs for this             by the Manager, International Section,                be done and the airplane can be put back in
                                                 AD, if requested using the procedures found             Transport Standards Branch, FAA; or the               an airworthy condition. Any substitutions or
                                                 in 14 CFR 39.19. In accordance with 14 CFR              European Aviation Safety Agency (EASA); or            changes to procedures or tests identified as
                                                 39.19, send your request to your principal              Airbus’s EASA Design Organization
                                                                                                                                                               RC require approval of an AMOC.
                                                                                                                                                                                                                EP08FE18.001</GPH>




                                                 inspector or local Flight Standards District            Approval (DOA). If approved by the DOA,



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                                                                       Federal Register / Vol. 83, No. 27 / Thursday, February 8, 2018 / Proposed Rules                                                5587

                                                 (j) Related Information                                 serialization of the HSTA attachment                  this proposed AD. Send your comments
                                                    (1) Refer to Mandatory Continuing                    pins and trunnions, and repair or                     to an address listed under the
                                                 Airworthiness Information (MCAI) EASA AD                replacement of damaged HSTA                           ADDRESSES section. Include ‘‘Docket No.
                                                 2017–0122, dated July 18, 2017, for related             attachment pins and trunnions. We are                 FAA–2018–0028; Product Identifier
                                                 information. This MCAI may be found in the              proposing this AD to address the unsafe               2017–NM–143–AD’’ at the beginning of
                                                 AD docket on the internet at http://                    condition on these products.                          your comments. We specifically invite
                                                 www.regulations.gov by searching for and                                                                      comments on the overall regulatory,
                                                                                                         DATES: We must receive comments on
                                                 locating Docket No. FAA–2018–0025.
                                                    (2) For more information about this AD,              this proposed AD by March 26, 2018.                   economic, environmental, and energy
                                                 contact Dan Rodina, Aerospace Engineer,                 ADDRESSES: You may send comments,                     aspects of this NPRM. We will consider
                                                 International Section, Transport Standards              using the procedures found in 14 CFR                  all comments received by the closing
                                                 Branch, FAA, 1601 Lind Avenue SW,                       11.43 and 11.45, by any of the following              date and may amend this NPRM based
                                                 Renton, WA 98057–3356; telephone: 425–                  methods:                                              on those comments.
                                                 227–2125; fax: 425–227–1149.                              • Federal eRulemaking Portal: Go to                    We will post all comments we
                                                    (3) For service information identified in            http://www.regulations.gov. Follow the                receive, without change, to http://
                                                 this AD, contact Airbus SAS, Airworthiness              instructions for submitting comments.                 www.regulations.gov, including any
                                                 Office—EAW, 1 Rond Point Maurice                          • Fax: 202–493–2251.                                personal information you provide. We
                                                 Bellonte, 31707 Blagnac Cedex, France;                     • Mail: U.S. Department of
                                                 telephone: +33 5 61 93 36 96; fax: +33 5 61
                                                                                                                                                               will also post a report summarizing each
                                                 93 44 51; email: account.airworth-eas@
                                                                                                         Transportation, Docket Operations,                    substantive verbal contact we receive
                                                 airbus.com; internet: http://www.airbus.com.            M–30, West Building Ground Floor,                     about this NPRM.
                                                 You may view this service information at the            Room W12–140, 1200 New Jersey
                                                                                                         Avenue SE, Washington, DC 20590.                      Discussion
                                                 FAA, Transport Standards Branch, 1601 Lind
                                                 Avenue SW, Renton, WA. For information on                  • Hand Delivery: Deliver to Mail                     Transport Canada Civil Aviation
                                                 the availability of this material at the FAA,           address above between 9 a.m. and 5                    (TCCA), which is the aviation authority
                                                 call 425–227–1221.                                      p.m., Monday through Friday, except                   for Canada, has issued Canadian
                                                   Issued in Renton, Washington, on January              Federal holidays.                                     Airworthiness Directive CF–2017–24,
                                                 25, 2018.                                                  For service information identified in              dated July 12, 2017 (referred to after this
                                                 Michael Kaszycki,                                       this NPRM, contact Bombardier, Inc.,                  as the Mandatory Continuing
                                                                                                         400 Côte Vertu Road West, Dorval,                    Airworthiness Information, or ‘‘the
                                                 Acting Director, System Oversight Division,
                                                 Aircraft Certification Service.                         Québec H4S 1Y9, Canada; Widebody                     MCAI’’), to correct an unsafe condition
                                                                                                         Customer Response Center North                        for certain Bombardier, Inc., Model CL–
                                                 [FR Doc. 2018–02018 Filed 2–7–18; 8:45 am]
                                                                                                         America toll-free telephone 1–866–538–                600–1A11 (CL–600), CL–600–2A12 (CL–
                                                 BILLING CODE 4910–13–P
                                                                                                         1247 or direct-dial telephone 1–514–                  601 Variant), and CL–600–2B16 (CL–
                                                                                                         855–2999; fax 514–855–7401; email                     601–3A, CL–601–3R, and CL–604
                                                                                                         ac.yul@aero.bombardier.com; internet                  Variants) airplanes. The MCAI states:
                                                 DEPARTMENT OF TRANSPORTATION
                                                                                                         http://www.bombardier.com. You may
                                                                                                         view this service information at the                     During a review of the Horizontal
                                                 Federal Aviation Administration                                                                               Stabilizer Trim Actuator (HSTA) system, it
                                                                                                         FAA, Transport Standards Branch, 1601
                                                                                                                                                               was discovered that the safe life limits of the
                                                 14 CFR Part 39                                          Lind Avenue SW, Renton, WA. For                       HSTA attachment pins and trunnions were
                                                                                                         information on the availability of this               not listed in the Airworthiness Limitation
                                                 [Docket No. FAA–2018–0028; Product                      material at the FAA, call 425–227–1221.               (AWL) Section of the Instructions for
                                                 Identifier 2017–NM–143–AD]                                                                                    Continued Airworthiness. Also, the HSTA
                                                                                                         Examining the AD Docket
                                                 RIN 2120–AA64                                                                                                 attachment pins and trunnions were not
                                                                                                           You may examine the AD docket on                    serialized making it impossible to keep
                                                 Airworthiness Directives; Bombardier,                   the internet at http://                               accurate records of the life of these parts.
                                                                                                         www.regulations.gov by searching for                  Failure of these pins and trunnions could
                                                 Inc., Airplanes                                                                                               lead to a disconnect of the horizontal
                                                                                                         and locating Docket No. FAA–2018–
                                                 AGENCY: Federal Aviation                                0028; or in person at the Docket                      stabilizer and subsequent loss of the
                                                 Administration (FAA), DOT.                              Management Facility between 9 a.m.                    aeroplane.
                                                                                                                                                                  This [Canadian] AD mandates the
                                                 ACTION: Notice of proposed rulemaking                   and 5 p.m., Monday through Friday,                    incorporation of AWL tasks into the
                                                 (NPRM).                                                 except Federal holidays. The AD docket                maintenance schedule and serialization of
                                                                                                         contains this NPRM, the regulatory                    HSTA attachment pins and trunnions. Some
                                                 SUMMARY:    We propose to adopt a new                   evaluation, any comments received, and                aircraft require AWL tasks and serialization
                                                 airworthiness directive (AD) for certain                other information. The street address for             of the attachment pins only, while others
                                                 Bombardier, Inc., Model CL–600–1A11                     the Docket Operations office (telephone               require AWL tasks and serialization of the
                                                 (CL–600), CL–600–2A12 (CL–601                           800–647–5527) is in the ADDRESSES                     trunnions and attachment pins [and repair or
                                                 Variant), and CL–600–2B16 (CL–601–                      section. Comments will be available in                replacement if damaged (including linear
                                                 3A, CL–601–3R, and CL–604 Variants)                     the AD docket shortly after receipt.                  scratches, pits, spalling, dents, or surface
                                                 airplanes. This proposed AD was                                                                               texture variations)].
                                                                                                         FOR FURTHER INFORMATION CONTACT: Aziz
                                                 prompted by a determination that the                    Ahmed, Aerospace Engineer, Airframe                     This proposed AD would require
                                                 safe life limits of the horizontal                      and Mechanical Systems Section, FAA,                  revisions to certain operator
                                                 stabilizer trim actuator (HSTA)                         New York ACO Branch, 1600 Stewart                     maintenance documents to include new
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                                                 attachment pins and trunnions were not                  Avenue, Suite 410, Westbury, NY                       actions (e.g., inspections). Compliance
                                                 listed in certain airworthiness                         11590; telephone 516–228–7239; fax                    with these actions is required by 14 CFR
                                                 limitations (AWLs) and that the HSTA                    516–794–5531.                                         91.403(c). For airplanes that have been
                                                 attachment pins and trunnions were not                  SUPPLEMENTARY INFORMATION:                            previously modified, altered, or repaired
                                                 serialized. This proposed AD would                                                                            in the areas addressed by this proposed
                                                 require revision of the maintenance or                  Comments Invited                                      AD, the operator may not be able to
                                                 inspection program, as applicable, to                     We invite you to send any written                   accomplish the actions described in the
                                                 include the latest revision of the AWLs,                relevant data, views, or arguments about              revisions. In this situation, to comply


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Document Created: 2018-02-08 00:16:10
Document Modified: 2018-02-08 00:16:10
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 March 26, 2018.
ContactDan Rodina, Aerospace Engineer, International Section, Transport Standards Branch, FAA, 1601 Lind Avenue SW, Renton, WA 98057-3356; telephone: 425-227-2125; fax: 425- 227-1149.
FR Citation83 FR 5584 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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