82 FR 30949 - Airworthiness Directives; Airbus Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 82, Issue 127 (July 5, 2017)

Page Range		30949-30953
FR Document		2017-13759
We are adopting a new airworthiness directive (AD) for all Airbus Model A318 and A319 series airplanes; Model A320-211, -212, - 214, -231, -232, and -233 airplanes; and Model A321-111, -112, -131, - 211, -212, -213, -231, and -232 airplanes. This AD was prompted by an evaluation by the design approval holder (DAH), which indicates that the main landing gear (MLG) does not comply with certification specifications, which could result in a locking failure of the MLG side stay. This AD requires modification or replacement of certain MLG side stay assemblies. We are issuing this AD to address the unsafe condition on these products.
Federal Register, Volume 82 Issue 127 (Wednesday, July 5, 2017)
[Federal Register Volume 82, Number 127 (Wednesday, July 5, 2017)]
[Rules and Regulations]
[Pages 30949-30953]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-13759]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-9071; Directorate Identifier 2016-NM-019-AD; 
Amendment 39-18942; AD 2017-13-12]
RIN 2120-AA64


Airworthiness Directives; Airbus Airplanes

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

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for all 
Airbus Model A318 and A319 series airplanes; Model A320-211, -212, -
214, -231, -232, and -233 airplanes; and Model A321-111, -112, -131, -
211, -212, -213, -231, and -232 airplanes. This AD was prompted by an 
evaluation by the design approval holder (DAH), which indicates that 
the main landing gear (MLG) does not comply with certification 
specifications, which could result in a locking failure of the MLG side 
stay. This AD requires modification or replacement of certain MLG side 
stay assemblies. We are issuing this AD to address the unsafe condition 
on these products.

DATES: This AD is effective August 9, 2017.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of August 9, 
2017.

ADDRESSES: For Airbus service information identified in this final 
rule, contact Airbus, Airworthiness Office--EIAS, 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.
    For Messier-Dowty service information identified in this final 
rule, contact Messier-Dowty: Messier Services Americas, Customer 
Support Center, 45360 Severn Way, Sterling, VA 20166-8910; telephone: 
703-450-8233; fax: 703-404-1621; Internet: https://techpubs.services/messier-dowty.com.
    You may view this referenced service information at the FAA, 
Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For 
information on the availability of this material at the FAA, call 425-
227-1221. It is also available on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2016-
9071.

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-2016-
9071; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this AD, the regulatory evaluation, any comments received, and 
other information. The street address for the Docket Office (telephone 
800-647-5527) is Docket Management Facility, U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Sanjay Ralhan, Aerospace Engineer, 
International Branch, ANM-116, Transport Airplane Directorate, FAA, 
1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1405; 
fax 425-227-1149.

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to all Airbus Model A318 and 
A319 series airplanes; Model A320-211, -212, -214, -231, -232, and -233 
airplanes; and Model A321-111, -112, -131, -211, -212, -213, -231, and 
-232 airplanes. The NPRM published in the Federal Register on September 
8, 2016 (81 FR 62035). The NPRM was prompted by an evaluation by the 
DAH which indicates that the MLG does not comply with certification 
specifications, which could result in a locking failure of the MLG side 
stay. The NPRM proposed to require modification or replacement of 
certain MLG side stay assemblies. We are issuing this AD to prevent 
possible collapse of the MLG during takeoff and landing.
    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Union, has issued EASA AD 
2016-0018R1, dated September 14, 2016 (referred to after this as the 
Mandatory Continuing Airworthiness Information, or ``the MCAI''), to 
correct an unsafe condition for all Airbus Model A318 and A319 series 
airplanes; Model A320-211, -212, -214, -231, -232, and -233 airplanes; 
and Model A321-111, -112, -131, -211, -212, -213, -231, and -232 
airplanes. The MCAI states:


[[Page 30950]]


    During studies for a new landing gear design, it was discovered 
that the single-locked upper and lower cardan joints of the Main 
Landing Gear (MLG) do not comply with the certification 
specifications of (CS, formerly [Joint Aviation Requirements] JAR) 
Part 25.607.
    This condition, if not corrected, could lead to MLG side stay 
locking failure that, during take-off and landing, may result in 
damage to the aeroplane and detrimental effect on safe flight.
    To address this potential unsafe condition, the MLG manufacturer 
developed a modification to change the single-locked MLG joint into 
a double-locked one. This modification is available for in-service 
application through Messier-Bugatti-Dowty (MBD) Service Bulletin 
(SB) 200-32-315 or SB 201-32-63, or Airbus SB A320-32-1429.
    For the reasons described above, EASA issued AD 2016-0018 to 
require modification or replacement of the MLG side stay assemblies, 
introducing the double locking of the MLG upper and lower cardan 
joints.
    Following new engineering evaluation, this [EASA] AD is revised 
to extend the compliance time. This revised [EASA] AD also clarifies 
the affected Part Number (P/N) references in Appendix 1 by adding 
Notes, and introduces some editorial changes without affecting the 
requirements.

    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-2016-
9071.

Comments

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

Support for the NPRM

    Air Line Pilots Association, International (ALPA), American 
Airlines (AAL), and Allegiant Air (Allegiant) expressed support for the 
NPRM.

Requests To Extend Compliance Time for the Proposed Modification/
Replacement

    Air France, AAL, Delta Airlines (DAL), and Virgin America (Virgin) 
commented that EASA has released EASA AD 2016-0018R1, dated September 
14, 2016 (``EASA AD 2016-0018R1''). The commenters pointed out that 
EASA AD 2016-0018R1 extends the compliance time for the modification or 
replacement from 66 months to 120 months following a new engineering 
evaluation. Air France and Virgin America (Virgin) requested that the 
FAA refer to EASA AD 2016-0018R1. DAL also asserts that the extension 
would enable operators to accomplish the modification during MLG 
overhauls with no impact on airline operations.
    We agree with the commenters' requests to extend the compliance 
time for the modification or replacement. We have determined that, 
based on the new engineering evaluation, extending the compliance time 
will not adversely affect safety, and will provide operators more 
flexibility regarding where and when they accomplish the required 
actions. We have revised paragraph (g) of this AD to specify a 
compliance time of within 120 months after the effective date of this 
AD.

Requests To Refer to Updated Service Information

    Allegiant and DAL requested that we revise the NPRM to refer to 
Airbus Service Bulletin A320-32-1429, Revision 01, dated February 29, 
2016 (``Airbus Service Bulletin A320-32-1429, Revision 01''). The 
commenters explained that Airbus Service Bulletin A320-32-1429, 
Revision 01, contains corrected part numbers for certain MLG side stay 
assemblies.
    We agree with the commenters for the reasons provided. We have 
revised this AD to refer to Airbus Service Bulletin A320-32-1429, 
Revision 01. We have also revised this AD to provide credit for actions 
done before the effective date of this AD, if those actions were done 
using Airbus Service Bulletin A320-32-1429, dated September 10, 2015.

Request To Change Tracking Method of Completed Modification

    AAL requested that we revise the NPRM to require the manufacturer 
to change its method of adding a modification strike to track 
accomplishment of the proposed modification. AAL suggested that the 
manufacturer develop a new part number for easier tracking of a 
completed modification.
    We disagree with the commenter's request. We have determined that 
the actions required by this AD, as specified in the service 
information, adequately address the unsafe condition. We have not 
revised this AD in this regard. However, if the manufacturer revises 
the service information in the future, operators may request approval 
of an alternative method of compliance (AMOC), provided adequate data 
are provided to substantiate that the AMOC provides an acceptable level 
of safety.

Request To Postpone Release of This AD

    Allegiant requested that this AD be postponed until Airbus Service 
Bulletin A320-32-1429, Revision 02, is published. Allegiant stated that 
Revision 02 will incorporate updated information described in Airbus 
Operators Information Transmission (OIT) 16-0028, Revision 01, dated 
May 26, 2016. Allegiant pointed out that the Airbus OIT explains that 
there could be difficulties with accomplishing the required actions 
``on-wing,'' and that Airbus recommends postponing accomplishment of 
the required actions. Allegiant asserts that Airbus Service Bulletin 
A320-32-1429, Revision 02, is intended to provide an airplane jacking 
procedure that could allow modification of the MLG while it is attached 
to the airplane.
    We partially agree with the commenter's request. We do not agree to 
delay issuance of this final rule. We have coordinated this issue with 
Airbus, and Airbus does not recommend postponing accomplishment of 
Airbus Service Bulletin A320-32-1429, Revision 01, altogether. Airbus 
does recommend that operators planning to do the modification/
replacement ``on wing'' postpone accomplishment until the jacking 
procedure is provided. Airbus also recommends that the modification/
replacement be accomplished when the airplane is ``in shop'' for 
scheduled MLG overhaul.
    Operators are not required to accomplish the required modification 
``on wing.'' We have revised paragraph (g)(1) of this AD to clarify 
that the modification may be done ``off wing,'' provided the modified 
MLG is reinstalled on the airplane. Additionally, as previously 
explained, we have extended the compliance time in this AD, effectively 
doubling the time in which operators have to accomplish the required 
actions.

Request To Change Applicability From Airplane Model to MLG Component

    DAL requested that we revise the proposed applicability to apply to 
the MLG side stays instead of the airplane model. DAL pointed out that 
the MLG side stays are tracked independently from the airframe because 
of the 10-year overhaul requirement for the landing gear. DAL reasons 
that compliance could then be tracked at the component level, 
simplifying compliance.
    We disagree with the commenter's request. Not all U.S. operators 
may track the MLG parts using a method similar to that used by DAL. 
Therefore, while the requested change might simplify compliance 
tracking for DAL, it might complicate compliance tracking for other 
operators. We have not revised this AD in this regard.

Request To Remove Statement Regarding Method of Repair

    DAL requested that we revise the proposed AD to remove the 
statement

[[Page 30951]]

regarding the method of replacement specified in paragraph (g)(2) of 
the proposed AD. Instead, DAL recommended allowing operators to replace 
the MLG side stays using normal airplane maintenance manual (AMM) 
procedures. DAL explains that the AMM procedures include both pre- and 
post-modification procedures as specified in Airbus Service Bulletin 
A320-32-1429, Revision 01. However, DAL pointed out that, as of the 
effective date of this AD, paragraph (i) of the proposed AD states that 
only post-modification MLG side stays may be installed, so only the 
post-modification AMM procedures will apply. The pre-modification 
procedures will be removed from the AMM, and there will be no risk of 
de-modifying the MLG side stay.
    We disagree with the commenter's request. AMMs are customizable 
documents that may be used for compliance with paragraph (g)(2) of this 
AD only with an approved method of compliance. Operators may request 
that their AMM be revised to show only the post-modification MLG 
configuration for installing new MLG side stays, or request an AMOC to 
use another acceptable method for installing the MLG side stays. We 
have not changed this AD in this regard.

Conclusion

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

Related Service Information Under 1 CFR Part 51

    We have reviewed the following service information.
     Airbus Service Bulletin A320-32-1429, Revision 01, dated 
February 29, 2016.
     Messier-Bugatti-Dowty Service Bulletin 200-32-315, dated 
April 24, 2015.
     Messier-Bugatti-Dowty Service Bulletin 201-32-63, dated 
April 24, 2015.
    The service information describes procedures for modifying the MLG 
side stay assembly. The Messier-Bugatti-Dowty documents are distinct 
since they apply to different airplane models. This service information 
is reasonably available because the interested parties have access to 
it through their normal course of business or by the means identified 
in the ADDRESSES section.

Costs of Compliance

    We estimate that this AD affects 959 airplanes of U.S. registry.
    We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
Replacement or modification...........  9 work-hour x $85 per            $14,104         $14,869     $14,259,371
                                         hour = $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.

Regulatory Findings

    We determined that this AD will not have federalism implications 
under Executive Order 13132. This AD will not have a substantial direct 
effect on the States, on the relationship between the national 
government and the States, or on the distribution of power and 
responsibilities among the various levels of government.
    For the reasons discussed above, I certify that this AD:
    1. Is not a ``significant regulatory action'' under Executive Order 
12866;
    2. Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979);
    3. Will not affect intrastate aviation in Alaska; and
    4. Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority:  49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

2017-13-12 Airbus: Amendment 39-18942; Docket No. FAA-2016-9071; 
Directorate Identifier 2016-NM-019-AD.

(a) Effective Date

    This AD is effective August 9, 2017.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to the airplanes identified in paragraphs 
(c)(1), (c)(2), (c)(3), and (c)(4) of this AD, certificated in any 
category, all manufacturer serial numbers.
    (1) Airbus Model A318-111, -112, -121, and -122 airplanes.
    (2) Airbus Model A319-111, -112, -113, -114, -115, -131, -132, 
and -133 airplanes.
    (3) Airbus Model A320-211, -212, -214, -231, -232, and -233 
airplanes.
    (4) Airbus Model A321-111, -112, -131, -211, -212, -213, -231, 
and -232 airplanes.

[[Page 30952]]

(d) Subject

    Air Transport Association (ATA) of America Code 32, Landing 
Gear.

(e) Reason

    This AD was prompted by an evaluation by the design approval 
holder, which indicates that the main landing gear (MLG) does not 
comply with certification specifications, which could result in a 
locking failure of the MLG side stay. We are issuing this AD to 
prevent possible collapse of the MLG during takeoff and landing.

(f) Compliance

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

(g) Modification or Replacement

    Within 120 months after the effective date of this AD, 
accomplish the action specified in paragraph (g)(1) or (g)(2) of 
this AD.
    (1) Modify each MLG side stay assembly having a part number 
listed in figure 1 to paragraphs (g), (h), and (i) of this AD, in 
accordance with the Accomplishment Instructions of Airbus Service 
Bulletin A320-32-1429, Revision 01, dated February 29, 2016, and the 
service information specified in paragraph (g)(1)(i) or (g)(1)(ii) 
of this AD, as applicable. The modification may be done ``off 
wing,'' provided the modified MLG is reinstalled on the airplane.
    (i) For Model A318 series airplanes; Model A319 series 
airplanes; and Model A320-211, -212, -214, -231, -232, and -233 
airplanes: Messier-Bugatti-Dowty Service Bulletin 200-32-315, dated 
April 24, 2015.
    (ii) For Model A321 series airplanes: Messier-Bugatti-Dowty 
Service Bulletin 201-32-63, dated April 24, 2015.
    (2) Replace the MLG side stay assembly with a side stay assembly 
that has been modified in accordance with paragraph (g)(1) of this 
AD. Do the replacement using a method approved by the Manager, 
International Branch, ANM-116, Transport Airplane Directorate, FAA; 
or The European Aviation Safety Agency (EASA); or Airbus's EASA 
Design Organization Approval (DOA).

    Note 1 to paragraph (g)(2) of this AD:  Additional guidance for 
the replacement can be found in Chapter 32 of the Airbus A318/A319/
A320/A321 Aircraft Maintenance Manual.


             Figure 1 to Paragraphs (g), (h), and (i) of This AD--Affected MLG Side Stay Assemblies
----------------------------------------------------------------------------------------------------------------
                                                                                                  Strike No. not
           Models                                  Affected part Nos. (P/N)                          cancelled
----------------------------------------------------------------------------------------------------------------
A318-111, -112, -121, and -   201166001-xxx \1\.................................................              12
 122 airplanes.
A319-111, -112, -113, -114, - 201166002-xxx \1\.................................................              12
 115, -131, -132, and -133
 airplanes; and
A320-211, -212, -214, -231, - 201166003-xxx \1\.................................................              12
 232, and -233 airplanes.
                              201166004-xxx \1\.................................................              12
                              201166005-xxx \1\.................................................              12
                              201166006-xxx \1\.................................................              12
                              201166007-xxx \1\.................................................              12
                              201166008-xxx \1\.................................................              12
                              201166009-xxx \1\.................................................              12
                              201166010-xxx \1\.................................................              12
                              201166011-xxx \1\.................................................              12
                              201166012-xxx \1\.................................................              12
                              201166013-000 through 201166013-030 inclusive \2\.................              12
                              201166014-000 through 201166014-030 inclusive \2\.................              12
A321-111, -112, and -131      201390001-000 through 201390001-040 inclusive \2\.................              15
 airplanes.                   201390002-000 through 201390002-040 inclusive \2\.................              15
                              201527001-000 through 201527001-025 inclusive \2\.................              15
                              201527002-000 through 201527002-025 inclusive \2\.................              15
A321-211, -212, -213, -231,   201524001-000 through 201524001-035 inclusive \2\.................              15
 and -232 airplanes.          201524002-000 through 201524002-035 inclusive \2\.................              15
                              201660001-000 through 201660001-030 inclusive \2\.................              15
                              201660002-000 through 201660002-030 inclusive \2\.................              15
----------------------------------------------------------------------------------------------------------------
\1\ The `xxx' used in this figure can be any 3-digit combination.
\2\ Units having a P/N with no dash number after the first 9 digits are also affected. Units having a P/N with
  the first 9 digits and a dash number higher than those listed, are not affected by the requirements of this
  AD.

(h) Unaffected Airplanes

    An airplane on which Airbus Modification (Mod) 156646, Airbus 
Mod 161202, or Airbus Mod 161346 has been embodied in production is 
not affected by the requirements of paragraph (g) of this AD, 
provided it is determined that no part having a part number 
identified in figure 1 to paragraphs (g), (h), and (i) of this AD, 
has been installed on that airplane since the date of issuance of 
the original certificate of airworthiness or the original export 
certificate of airworthiness. A review of the airplane maintenance 
records is acceptable to make this determination, provided that 
these records are accurate and can be relied upon to conclusively 
make that determination.

(i) Parts Installation Prohibition

    As of the effective date of this AD, do not install on any 
airplane, an MLG side stay assembly having a part number, with the 
strike number not cancelled, as identified in figure 1 to paragraphs 
(g), (h), and (i) of this AD, unless it has been modified in 
accordance with the requirements of paragraph (g) of this AD.

(j) Credit for Previous Actions

    This paragraph provides credit for actions required by paragraph 
(g) of this AD, if those actions were performed before the effective 
date of this AD using Airbus Service Bulletin A320-32-1429, dated 
September 10, 2015.

(k) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
International Branch, ANM-116, Transport Airplane Directorate, 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 International Branch, send it to the 
attention of the person identified in paragraph (l)(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 
Branch, ANM-116, Transport Airplane Directorate, FAA; or EASA; or 
Airbus's EASA DOA. If approved

[[Page 30953]]

by the DOA, the approval must include the DOA-authorized signature.
    (3) Required for Compliance (RC): 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.

(l) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) EASA AD 2016-0018R1, dated September 14, 2016, for related 
information. You may examine the MCAI on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-
2016-9071.
    (2) For more information about this AD, contact Sanjay Ralhan, 
Aerospace Engineer, International Branch, ANM-116, Transport 
Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-
3356; telephone 425-227-1405; fax 425-227-1149.
    (3) Service information identified in this AD that is not 
incorporated by reference is available at the addresses specified in 
paragraphs (m)(3), (m)(4), and (m)(5) of this AD.

(m) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless this AD specifies otherwise.
    (i) Airbus Service Bulletin A320-32-1429, Revision 01, dated 
February 29, 2016.
    (ii) Messier-Bugatti-Dowty Service Bulletin 200-32-315, dated 
April 24, 2015.
    (iii) Messier-Bugatti-Dowty Service Bulletin 201-32-63, dated 
April 24, 2015.
    (3) For Airbus service information identified in this AD, 
contact Airbus, Airworthiness Office--EIAS, 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.
    (4) For Messier-Dowty service information identified in this AD, 
contact Messier-Dowty: Messier Services Americas, Customer Support 
Center, 45360 Severn Way, Sterling, VA 20166-8910; telephone: 703-
450-8233; fax: 703-404-1621; Internet: https://techpubs.services/messier-dowty.com.
    (5) You may view this service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For 
information on the availability of this material at the FAA, call 
425-227-1221.
    (6) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued in Renton, Washington, on June 19, 2017.
John P. Piccola, Jr.,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2017-13759 Filed 7-3-17; 8:45 am]
 BILLING CODE 4910-13-P
30950 Federal Register / Vol. 82, No. 127 / Wednesday, July 5, 2017 / Rules and Regulations

During studies for a new landing gear We agree with the commenters’ Operators Information Transmission
design, it was discovered that the single- requests to extend the compliance time (OIT) 16–0028, Revision 01, dated May
locked upper and lower cardan joints of the for the modification or replacement. We 26, 2016. Allegiant pointed out that the
Main Landing Gear (MLG) do not comply
have determined that, based on the new Airbus OIT explains that there could be
with the certification specifications of (CS,
formerly [Joint Aviation Requirements] JAR) engineering evaluation, extending the difficulties with accomplishing the
Part 25.607. compliance time will not adversely required actions ‘‘on-wing,’’ and that
This condition, if not corrected, could lead affect safety, and will provide operators Airbus recommends postponing
to MLG side stay locking failure that, during more flexibility regarding where and accomplishment of the required actions.
take-off and landing, may result in damage to when they accomplish the required Allegiant asserts that Airbus Service
the aeroplane and detrimental effect on safe actions. We have revised paragraph (g) Bulletin A320–32–1429, Revision 02, is
flight. of this AD to specify a compliance time intended to provide an airplane jacking
To address this potential unsafe condition, procedure that could allow modification
of within 120 months after the effective
the MLG manufacturer developed a
modification to change the single-locked date of this AD. of the MLG while it is attached to the
MLG joint into a double-locked one. This airplane.
Requests To Refer to Updated Service We partially agree with the
modification is available for in-service Information
application through Messier-Bugatti-Dowty commenter’s request. We do not agree to
(MBD) Service Bulletin (SB) 200–32–315 or Allegiant and DAL requested that we delay issuance of this final rule. We
SB 201–32–63, or Airbus SB A320–32–1429. revise the NPRM to refer to Airbus have coordinated this issue with Airbus,
For the reasons described above, EASA Service Bulletin A320–32–1429, and Airbus does not recommend
issued AD 2016–0018 to require modification Revision 01, dated February 29, 2016 postponing accomplishment of Airbus
or replacement of the MLG side stay (‘‘Airbus Service Bulletin A320–32– Service Bulletin A320–32–1429,
assemblies, introducing the double locking of
1429, Revision 01’’). The commenters Revision 01, altogether. Airbus does
the MLG upper and lower cardan joints.
Following new engineering evaluation, this explained that Airbus Service Bulletin recommend that operators planning to
[EASA] AD is revised to extend the A320–32–1429, Revision 01, contains do the modification/replacement ‘‘on
compliance time. This revised [EASA] AD corrected part numbers for certain MLG wing’’ postpone accomplishment until
also clarifies the affected Part Number (P/N) side stay assemblies. the jacking procedure is provided.
references in Appendix 1 by adding Notes, We agree with the commenters for the Airbus also recommends that the
and introduces some editorial changes reasons provided. We have revised this modification/replacement be
without affecting the requirements. AD to refer to Airbus Service Bulletin accomplished when the airplane is ‘‘in
You may examine the MCAI in the A320–32–1429, Revision 01. We have shop’’ for scheduled MLG overhaul.
AD docket on the Internet at http:// also revised this AD to provide credit Operators are not required to
www.regulations.gov by searching for for actions done before the effective date accomplish the required modification
and locating Docket No. FAA–2016– of this AD, if those actions were done ‘‘on wing.’’ We have revised paragraph
9071. using Airbus Service Bulletin A320–32– (g)(1) of this AD to clarify that the
1429, dated September 10, 2015. modification may be done ‘‘off wing,’’
Comments provided the modified MLG is
We gave the public the opportunity to Request To Change Tracking Method of
reinstalled on the airplane.
participate in developing this AD. The Completed Modification
Additionally, as previously explained,
following presents the comments AAL requested that we revise the we have extended the compliance time
received on the NPRM and the FAA’s NPRM to require the manufacturer to in this AD, effectively doubling the time
response to each comment. change its method of adding a in which operators have to accomplish
modification strike to track the required actions.
Support for the NPRM accomplishment of the proposed
Air Line Pilots Association, modification. AAL suggested that the Request To Change Applicability From
International (ALPA), American manufacturer develop a new part Airplane Model to MLG Component
Airlines (AAL), and Allegiant Air number for easier tracking of a DAL requested that we revise the
(Allegiant) expressed support for the completed modification. proposed applicability to apply to the
NPRM. We disagree with the commenter’s MLG side stays instead of the airplane
request. We have determined that the model. DAL pointed out that the MLG
Requests To Extend Compliance Time
actions required by this AD, as specified side stays are tracked independently
for the Proposed Modification/
in the service information, adequately from the airframe because of the 10-year
Replacement
address the unsafe condition. We have overhaul requirement for the landing
Air France, AAL, Delta Airlines not revised this AD in this regard. gear. DAL reasons that compliance
(DAL), and Virgin America (Virgin) However, if the manufacturer revises the could then be tracked at the component
commented that EASA has released service information in the future, level, simplifying compliance.
EASA AD 2016–0018R1, dated operators may request approval of an We disagree with the commenter’s
September 14, 2016 (‘‘EASA AD 2016– alternative method of compliance request. Not all U.S. operators may track
0018R1’’). The commenters pointed out (AMOC), provided adequate data are the MLG parts using a method similar
that EASA AD 2016–0018R1 extends the provided to substantiate that the AMOC to that used by DAL. Therefore, while
compliance time for the modification or provides an acceptable level of safety. the requested change might simplify
replacement from 66 months to 120 compliance tracking for DAL, it might
months following a new engineering Request To Postpone Release of This
complicate compliance tracking for
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evaluation. Air France and Virgin AD
other operators. We have not revised
America (Virgin) requested that the FAA Allegiant requested that this AD be this AD in this regard.
refer to EASA AD 2016–0018R1. DAL postponed until Airbus Service Bulletin
also asserts that the extension would A320–32–1429, Revision 02, is Request To Remove Statement
enable operators to accomplish the published. Allegiant stated that Regarding Method of Repair
modification during MLG overhauls Revision 02 will incorporate updated DAL requested that we revise the
with no impact on airline operations. information described in Airbus proposed AD to remove the statement

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regarding the method of replacement for installing new MLG side stays, or • Airbus Service Bulletin A320–32–
specified in paragraph (g)(2) of the request an AMOC to use another 1429, Revision 01, dated February 29,
proposed AD. Instead, DAL acceptable method for installing the 2016.
recommended allowing operators to MLG side stays. We have not changed • Messier-Bugatti-Dowty Service
replace the MLG side stays using normal this AD in this regard.
Bulletin 200–32–315, dated April 24,
airplane maintenance manual (AMM) Conclusion 2015.
procedures. DAL explains that the AMM
procedures include both pre- and post- We reviewed the relevant data, • Messier-Bugatti-Dowty Service
modification procedures as specified in considered the comments received, and Bulletin 201–32–63, dated April 24,
Airbus Service Bulletin A320–32–1429, determined that air safety and the 2015.
Revision 01. However, DAL pointed out public interest require adopting this AD
The service information describes
that, as of the effective date of this AD, with the changes described previously
procedures for modifying the MLG side
paragraph (i) of the proposed AD states and minor editorial changes. We have
determined that these minor changes: stay assembly. The Messier-Bugatti-
that only post-modification MLG side Dowty documents are distinct since
stays may be installed, so only the post- • Are consistent with the intent that
was proposed in the NPRM for they apply to different airplane models.
modification AMM procedures will This service information is reasonably
apply. The pre-modification procedures correcting the unsafe condition; and
• Do not add any additional burden available because the interested parties
will be removed from the AMM, and
upon the public than was already have access to it through their normal
there will be no risk of de-modifying the
proposed in the NPRM. course of business or by the means
MLG side stay.
We also determined that these identified in the ADDRESSES section.
We disagree with the commenter’s changes will not increase the economic
request. AMMs are customizable burden on any operator or increase the Costs of Compliance
documents that may be used for scope of this AD.
compliance with paragraph (g)(2) of this We estimate that this AD affects 959
AD only with an approved method of Related Service Information Under 1 airplanes of U.S. registry.
compliance. Operators may request that CFR Part 51 We estimate the following costs to
their AMM be revised to show only the We have reviewed the following comply with this AD:
post-modification MLG configuration service information.

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

Replacement or modification .......................... 9 work-hour × $85 per hour = $765 ............... $14,104 $14,869 $14,259,371

Authority for This Rulemaking the national government and the States, PART 39—AIRWORTHINESS
Title 49 of the United States Code or on the distribution of power and DIRECTIVES
specifies the FAA’s authority to issue responsibilities among the various
levels of government. ■ 1. The authority citation for part 39
rules on aviation safety. Subtitle I, continues to read as follows:
section 106, describes the authority of For the reasons discussed above, I
the FAA Administrator. ‘‘Subtitle VII: certify that this AD: Authority: 49 U.S.C. 106(g), 40113, 44701.
Aviation Programs,’’ describes in more 1. Is not a ‘‘significant regulatory § 39.13 [Amended]
detail the scope of the Agency’s action’’ under Executive Order 12866;
authority. ■ 2. The FAA amends § 39.13 by adding
2. Is not a ‘‘significant rule’’ under the the following new airworthiness
We are issuing this rulemaking under
DOT Regulatory Policies and Procedures directive (AD):
the authority described in ‘‘Subtitle VII,
Part A, Subpart III, Section 44701: (44 FR 11034, February 26, 1979); 2017–13–12 Airbus: Amendment 39–18942;
General requirements.’’ Under that 3. Will not affect intrastate aviation in Docket No. FAA–2016–9071; Directorate
Alaska; and Identifier 2016–NM–019–AD.
section, Congress charges the FAA with
promoting safe flight of civil aircraft in 4. Will not have a significant (a) Effective Date
air commerce by prescribing regulations economic impact, positive or negative, This AD is effective August 9, 2017.
for practices, methods, and procedures on a substantial number of small entities (b) Affected ADs
the Administrator finds necessary for under the criteria of the Regulatory
safety in air commerce. This regulation None.
Flexibility Act.
is within the scope of that authority (c) Applicability
because it addresses an unsafe condition List of Subjects in 14 CFR Part 39 This AD applies to the airplanes identified
that is likely to exist or develop on in paragraphs (c)(1), (c)(2), (c)(3), and (c)(4)
products identified in this rulemaking Air transportation, Aircraft, Aviation of this AD, certificated in any category, all
action. safety, Incorporation by reference, manufacturer serial numbers.
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Safety. (1) Airbus Model A318–111, –112, –121,
Regulatory Findings and –122 airplanes.
Adoption of the Amendment (2) Airbus Model A319–111, –112, –113,
We determined that this AD will not
–114, –115, –131, –132, and –133 airplanes.
have federalism implications under Accordingly, under the authority (3) Airbus Model A320–211, –212, –214,
Executive Order 13132. This AD will delegated to me by the Administrator, –231, –232, and –233 airplanes.
not have a substantial direct effect on the FAA amends 14 CFR part 39 as (4) Airbus Model A321–111, –112, –131,
the States, on the relationship between follows: –211, –212, –213, –231, and –232 airplanes.

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by the DOA, the approval must include the National Archives and Records www.regulations.gov by searching for
DOA-authorized signature. Administration (NARA). For information on and locating Docket No. FAA–2016–
(3) Required for Compliance (RC): If any the availability of this material at NARA, call 9384.
service information contains procedures or 202–741–6030, or go to: http://
tests that are identified as RC, those www.archives.gov/federal-register/cfr/ibr- Examining the AD Docket
procedures and tests must be done to comply locations.html.
with this AD; any procedures or tests that are You may examine the AD docket on
Issued in Renton, Washington, on June 19, the Internet at http://
not identified as RC are recommended. Those
2017. www.regulations.gov by searching for
procedures and tests that are not identified
as RC may be deviated from using accepted John P. Piccola, Jr., and locating Docket No. FAA–2016–
methods in accordance with the operator’s Acting Manager, Transport Airplane 9384; or in person at the Docket
maintenance or inspection program without Directorate, Aircraft Certification Service. Management Facility between 9 a.m.
obtaining approval of an AMOC, provided [FR Doc. 2017–13759 Filed 7–3–17; 8:45 am] and 5 p.m., Monday through Friday,
the procedures and tests identified as RC can BILLING CODE 4910–13–P except Federal holidays. The AD docket
be done and the airplane can be put back in
contains this AD, the regulatory
an airworthy condition. Any substitutions or
changes to procedures or tests identified as evaluation, any comments received, and
DEPARTMENT OF TRANSPORTATION other information. The address for the
RC require approval of an AMOC.
Docket Office (phone: 800–647–5527) is
(l) Related Information Federal Aviation Administration Docket Management Facility, U.S.
(1) Refer to Mandatory Continuing Department of Transportation, Docket
Airworthiness Information (MCAI) EASA AD 14 CFR Part 39 Operations, M–30, West Building
2016–0018R1, dated September 14, 2016, for Ground Floor, Room W12–140, 1200
[Docket No. FAA–2016–9384; Directorate
related information. You may examine the
Identifier 2016–NM–154–AD; Amendment New Jersey Avenue SE., Washington,
MCAI on the Internet at http://
www.regulations.gov by searching for and
39–18944; AD 2017–13–14] DC 20590.
locating Docket No. FAA–2016–9071. RIN 2120–AA64 FOR FURTHER INFORMATION CONTACT:
(2) For more information about this AD, Allison Buss, Aerospace Engineer,
contact Sanjay Ralhan, Aerospace Engineer, Airworthiness Directives; The Boeing Cabin Safety and Environmental
International Branch, ANM–116, Transport Company Airplanes Systems Branch, ANM–150S, FAA,
Airplane Directorate, FAA, 1601 Lind Seattle Aircraft Certification Office
Avenue SW., Renton, WA 98057–3356; AGENCY: Federal Aviation (ACO), 1601 Lind Avenue SW., Renton,
telephone 425–227–1405; fax 425–227–1149. Administration (FAA), DOT.
(3) Service information identified in this WA 98057–3356; phone: 425–917–6495;
AD that is not incorporated by reference is ACTION: Final rule. fax: 425–917–6590; email: allison.buss@
available at the addresses specified in faa.gov.
paragraphs (m)(3), (m)(4), and (m)(5) of this
SUMMARY: We are adopting a new
SUPPLEMENTARY INFORMATION:
AD. airworthiness directive (AD) for certain
The Boeing Company Model 777–300ER Discussion
(m) Material Incorporated by Reference series airplanes. This AD was prompted
(1) The Director of the Federal Register
We issued a notice of proposed
by a report that certain galley tripod
approved the incorporation by reference rulemaking (NPRM) to amend 14 CFR
mount assemblies were not connected to
(IBR) of the service information listed in this part 39 by adding an AD that would
the tie rods in the overhead support
paragraph under 5 U.S.C. 552(a) and 1 CFR apply to certain The Boeing Company
structure. This AD requires an
part 51. Model 777–300ER series airplanes. The
(2) You must use this service information
inspection of certain galleys for the
NPRM published in the Federal
as applicable to do the actions required by presence of the hardware that connects
Register on November 17, 2016 (81 FR
this AD, unless this AD specifies otherwise. the tripod mount assembly to the tie
81021) (‘‘the NPRM’’). The NPRM was
(i) Airbus Service Bulletin A320–32–1429, rods in the overhead support structure,
prompted by a report that the T53 and
Revision 01, dated February 29, 2016. and corrective actions if necessary. We
(ii) Messier-Bugatti-Dowty Service Bulletin
T52 tie rods to the tripod mount
are issuing this AD to address the unsafe
200–32–315, dated April 24, 2015. assembly in the A2 and A3 galleys were
condition on these products.
(iii) Messier-Bugatti-Dowty Service found unattached during a routine
DATES: This AD is effective August 9, production inspection of certain
Bulletin 201–32–63, dated April 24, 2015.
(3) For Airbus service information 2017. airplanes before delivery. The NPRM
identified in this AD, contact Airbus, The Director of the Federal Register proposed to require an inspection of A2
Airworthiness Office—EIAS, 1 Rond Point approved the incorporation by reference and A3 galleys for the presence of the
Maurice Bellonte, 31707 Blagnac Cedex, of a certain publication listed in this AD hardware that connects the tripod
France; telephone: +33 5 61 93 36 96; fax: as of August 9, 2017. mount assembly to the tie rods in the
+33 5 61 93 44 51; email: account.airworth- ADDRESSES: For service information
eas@airbus.com; Internet: http://
overhead support structure, and
www.airbus.com.
identified in this final rule, contact corrective actions if necessary. We are
(4) For Messier-Dowty service information Boeing Commercial Airplanes, issuing this AD to detect and correct an
identified in this AD, contact Messier-Dowty: Attention: Contractual & Data Services unconnected galley tripod mount
Messier Services Americas, Customer (C&DS), 2600 Westminster Blvd., MC assembly to the tie rods in the overhead
Support Center, 45360 Severn Way, Sterling, 110–SK57, Seal Beach, CA 90740; support structure, which can cause a
VA 20166–8910; telephone: 703–450–8233; telephone 562–797–1717; Internet galley to come loose under a high
fax: 703–404–1621; Internet: https:// https://www.myboeingfleet.com. You dynamic load, causing a risk of serious
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techpubs.services/messier-dowty.com. may view this referenced service injury to passengers and the blocking of
(5) You may view this service information information at the FAA, Transport
at the FAA, Transport Airplane Directorate,
evacuation routes.
1601 Lind Avenue SW., Renton, WA. For
Airplane Directorate, 1601 Lind Avenue
SW., Renton, WA. For information on Comments
information on the availability of this
material at the FAA, call 425–227–1221. the availability of this material at the We gave the public the opportunity to
(6) You may view this service information FAA, call 425–227–1221. It is also participate in developing this AD. The
that is incorporated by reference at the available on the Internet at http:// following presents the comments

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Document Created: 2017-07-04 02:00:41
Document Modified: 2017-07-04 02:00:41
Category		Regulatory Information
Collection		Federal Register
sudoc Class		AE 2.7: GS 4.107: AE 2.106:
Publisher		Office of the Federal Register, National Archives and Records Administration
Section		Rules and Regulations
Action		Final rule.
Dates		This AD is effective August 9, 2017.
Contact		Sanjay Ralhan, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1405; fax 425-227-1149.
FR Citation		82 FR 30949
RIN Number		2120-AA64
CFR Associated		Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
82 FR 30949 - Airworthiness Directives; Airbus Airplanes

DEPARTMENT OF TRANSPORTATIONFederal Aviation Administration

Federal Register Volume 82, Issue 127 (July 5, 2017)

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
