83_FR_16324 83 FR 16251 - Airworthiness Directives; Airbus Airplanes

83 FR 16251 - Airworthiness Directives; Airbus Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 73 (April 16, 2018)

Page Range16251-16256
FR Document2018-07656

We propose to adopt a new airworthiness directive (AD) for all Airbus Model A318 and A319 series airplanes; Model A320-211, A320-212, A320-214, A320-216, A320-231, A320-232, and A320-233 airplanes; and Model A321-111, A321-112, A321-131, A321-211, A321-212, A321-213, A321- 231, and A321-232 airplanes. This proposed AD was prompted by reports of missing assembly hardware on the trimmable horizontal stabilizer actuator (THSA). This proposed AD would require repetitive inspections and checks of the lower and upper THSA attachments and applicable related investigative and corrective actions; a one-time inspection of the THSA lower attachment and replacement as applicable; and, for certain airplanes, activation of the electrical load sensing device (ELSD) and concurrent modifications. We are proposing this AD to address the unsafe condition on these products.

Federal Register, Volume 83 Issue 73 (Monday, April 16, 2018)
[Federal Register Volume 83, Number 73 (Monday, April 16, 2018)]
[Proposed Rules]
[Pages 16251-16256]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-07656]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0298; Product Identifier 2017-NM-179-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 A318 and A319 series airplanes; Model A320-211, A320-212, 
A320-214, A320-216, A320-231, A320-232, and A320-233 airplanes; and 
Model A321-111, A321-112, A321-131, A321-211, A321-212, A321-213, A321-
231, and A321-232 airplanes. This proposed AD was prompted by reports 
of missing assembly hardware on the trimmable horizontal stabilizer 
actuator (THSA). This proposed AD would require repetitive inspections 
and checks of the lower and upper THSA attachments and applicable 
related investigative and corrective actions; a one-time inspection of 
the THSA lower attachment and replacement as applicable; and, for 
certain airplanes, activation of the electrical load sensing device 
(ELSD) and concurrent modifications. We are proposing this AD to 
address the unsafe condition on these products.

DATES: We must receive comments on this proposed AD by May 31, 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 Airbus service information identified in this NPRM, 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 United Technologies Corporation Aerospace Systems (UTAS) 
service information identified in this AD, contact United Technologies 
Corporation Aerospace Systems (UTAS): Goodrich Corporation, Actuation 
Systems, Stafford Road, Fordhouses, Wolverhampton WV10 7EH, England; 
phone: +44 (0) 1902 624938; fax: +44 (0) 1902 788100; email: 
[email protected]; internet: http://www.goodrich.com/TechPubs.
    You may view this service information at the FAA, Transport 
Standards Branch, 2200 South 216th Street, Des Moines, WA. For 
information on the availability of this material at the FAA, call 206-
231-3195.

Examining the AD Docket

    You may examine the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018-
0298; 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: Sanjay Ralhan, Aerospace Engineer, 
International Section, Transport Standards Branch, FAA, 2200 South 
216th Street, Des Moines, WA 98198; phone and fax: 206-231-3223.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2018-0298; 
Product Identifier 2017-NM-179-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

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Union, has issued EASA 
Airworthiness Directive 2017-0237, dated December 4, 2017 (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, A320-212, A320-214, A320-
216, A320-231, A320-232, A320-233 airplanes; and Model A321-111, A321-
112, A321-131, A321-211, A321-212, A321-213, A321-231, and A321-232 
airplanes. The MCAI states:

    The Trimmable Horizontal Stabilizer Actuator (THSA) of Airbus 
A320 Family aeroplanes has been rig-tested to check secondary load 
path behaviour in case of primary load path failure. In that 
configuration, the loads are transferred to the secondary load path, 
which should jam, preventing any Trimmable Horizontal Stabilizer 
motion. The test results showed that the secondary load path did not 
jam as expected, preventing detection of the primary load path 
failure. To verify the integrity of the THSA primary load path and 
the correct installation of the THSA, Airbus issued Service Bulletin 
(SB) A320-27-1164, later revised multiple times, and SB A320-
27A1179, and EASA issued AD 2006-0223 [which corresponds to FAA AD 
2007-06-02, Amendment 39-14983 (72 FR 12072, March 15, 2007) (``AD 
2007-06-02'')], AD 2007-0178 [which corresponds to FAA AD 2008-09-
16, Amendment 39-15497 (73 FR 24160, May 2, 2008)(``AD 2008-09-
16'')], AD 2008-0150, and AD 2014-0147, each AD superseding the 
previous one, requiring one-time and repetitive inspections.
    Since EASA AD 2014-0147 was issued, Airbus designed a new 
device, called Electrical Load Sensing Device (ELSD), to introduce a 
new mean of THSA upper secondary load path engagement detection. 
Consequently, Airbus issued several SBs (Airbus SB A320-27-1245, 
A320-27-1246, and A320-27-1247, depending on aeroplane 
configuration) providing instructions to install the wiring 
provision for ELSD installation and to install ELSD on the THSA, and 
SB A320-27-1248, providing instructions to activate the ELSD. Airbus 
also revised SB A320-27-1164, now at Revision 13, including 
instructions applicable for aircraft equipped with ELSD.
    Furthermore, following a visual inspection of the THSA, an 
operator reported that the THSA was found with a bush missing, 
inducing torqueing of the THSA lower attachment primary bolt against 
the THSA lug, which resulted in the application of a transverse 
force on the lug.

[[Page 16252]]

    Prompted by several other identical findings, Airbus released 
Alert Operator Transmission (AOT) A27N010-17 to provide instructions 
for inspection and associated corrective actions.
    For the reasons described above, this AD retains the 
requirements of EASA AD 2014-0147, which is superseded, and requires 
installation of ELSD on the THSA, ELSD activation, and a one-time 
inspection to verify the bush presence on the THSA lower attachment.

    The unsafe condition is uncontrolled movement of the horizontal 
stabilizer as a result of the latent (undetected) failure of the THSA's 
primary load path and consequent loss of control of the airplane.
    The required actions include repetitive inspections and checks of 
the lower and upper THSA attachments and applicable related 
investigative and corrective actions; a one-time inspection of the THSA 
lower attachment and replacement as applicable; and, for certain 
airplanes, activation of the ELSD and concurrent modifications.
    Related investigative actions include an inspection of the upper 
THSA attachment, an inspection of the lower attachment, and a check of 
the upper and lower clearance between the secondary nut trunnion and 
the junction plate. Corrective actions include replacement of the THSA 
and 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-
0298.

Relationship Between Proposed AD and AD 2007-06-02 and AD 2008-09-16

    Accomplishment of the certain proposed actions would terminate all 
requirements of AD 2007-06-02 and AD 2008-09-16.

Related Service Information Under 1 CFR Part 51

    Airbus has issued Alert Operators Transmission (AOT) A27N010-17, 
Revision 01, dated October 17, 2017, including AOT Appendix_A27N010-17. 
This service information describes the procedure for a one-time general 
visual inspection of the THSA lower attachment to measure the gap 
between the THSA lower attachment tab washer and attachment plates and 
replacement of the THSA lower attachment if the measured gap is less 
than 0.5 mm. The replacement includes doing an inspection of the THSA 
parts to confirm the bushing is missing and applicable corrective 
actions (i.e., repair).
    Airbus has issued Service Bulletin A320-27-1164, Revision 13, dated 
August 8, 2016. This service information describes procedures for a 
general visual inspection of the upper THSA attachments for correct 
installation, cracks, damage and metallic particles; a general visual 
inspection of the upper attachment for correct installation; a check of 
the clearance between secondary nut trunnions and junction plates and 
correct installation of the lower THSA attachment; a general visual 
inspection of the THSA ball screw to check for the absence of dents; 
and applicable related investigative and corrective actions.
    Airbus has issued Service Bulletin A320-27-1245, Revision 00, dated 
March 6, 2017. This service information describes the procedure to 
modify the wiring provisions for the ELSD.
    Airbus has issued Service Bulletin A320-27-1246, Revision 01, dated 
November 4, 2016. This service information describes the procedures to 
adapt the wiring provision of the ELSD and THSA to accommodate the 
correct installation of the ELSD.
    Airbus has issued Service Bulletin A320-27-1247, Revision 00, dated 
March 6, 2017. This service information describes the procedure to 
modify the upper attachment secondary load path of the THSA to 
accommodate the correct installation of the ELSD.
    Airbus has issued Service Bulletin A320-27-1248, Revision 00, dated 
March 6, 2017. This service information describes the procedure to 
activate the ELSD.
    UTAS has issued United Technologies Corporation (UTC) Aerospace 
Systems Repair Instructions RF-DSC-1361-17, Version 00, including 
Appendix A, dated May 24, 2017. This service information describes 
repair instructions to follow if the bushing is missing as specified in 
AOT A27N010-17, Revision 01, dated October 17, 2017.
    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 these 
same type designs.

Costs of Compliance

    We estimate that this proposed AD affects 1,180 airplanes of U.S. 
registry.
    We estimate the following costs to comply with this proposed AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                  Cost on U.S.
            Action                      Labor cost             Parts cost     Cost per product      operators
----------------------------------------------------------------------------------------------------------------
Inspections, Check,             Up to 59 work-hours x $85   Up to $15,353...  Up to $20,368...  Up to
 Activation, and Modifications.  per hour = $5,015.                                              $24,034,240.
----------------------------------------------------------------------------------------------------------------

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

                                               On-Condition Costs
----------------------------------------------------------------------------------------------------------------
                 Action                              Labor cost                 Parts cost      Cost per product
----------------------------------------------------------------------------------------------------------------
Replacement.............................  11 work-hours x $85 per hour =             $240,000           $240,935
                                           $935.
----------------------------------------------------------------------------------------------------------------


[[Page 16253]]

    We have received no definitive data that would enable us to provide 
cost estimates for the on-condition repairs specified in this proposed 
AD.

Paperwork Reduction Act

    A federal agency may not conduct or sponsor, and a person is not 
required to respond to, nor shall a person be subject to penalty for 
failure to comply with a collection of information subject to the 
requirements of the Paperwork Reduction Act unless that collection of 
information displays a current valid OMB control number. The control 
number for the collection of information required by this NPRM is 2120-
0056. The paperwork cost associated with this NPRM has been detailed in 
the Costs of Compliance section of this document and includes time for 
reviewing instructions, as well as completing and reviewing the 
collection of information. Therefore, all reporting associated with 
this NPRM is mandatory. Comments concerning the accuracy of this burden 
and suggestions for reducing the burden should be directed to the FAA 
at 800 Independence Ave. SW, Washington, DC 20591, ATTN: Information 
Collection Clearance Officer, AES-200.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. ``Subtitle VII: Aviation 
Programs,'' describes in more detail the scope of the Agency's 
authority.
    We are issuing this rulemaking under the authority described in 
``Subtitle VII, Part A, Subpart III, Section 44701: General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.
    This proposed AD is issued in accordance with authority delegated 
by the Executive Director, Aircraft Certification Service, as 
authorized by FAA Order 8000.51C. In accordance with that order, 
issuance of ADs is normally a function of the Compliance and 
Airworthiness Division, but during this transition period, the 
Executive Director has delegated the authority to issue ADs applicable 
to transport category airplanes to the Director of the System Oversight 
Division.

Regulatory Findings

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

List of Subjects in 14 CFR Part 39

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

The Proposed Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13   [Amended]

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

Airbus: Docket No. FAA-2018-0298; Product Identifier 2017-NM-179-AD.

(a) Comments Due Date

    We must receive comments by May 31, 2018.

(b) Affected ADs

    This AD affects AD 2007-06-02, Amendment 39-14983 (72 FR 12072, 
March 15, 2007) (``AD 2007-06-02'') and AD 2008-09-16, Amendment 39-
15497 (73 FR 24160, May 2, 2008) (``AD 2008-09-16'').

(c) Applicability

    This AD applies to Airbus Model A318-111, A318-112, A318-121, 
and A318-122 airplanes; Model A319-111, A319-112, A319-113, A319-
114, A319-115, A319-131, A319-132, and A319-133 airplanes; Model 
A320-211, A320-212, A320-214, A320-216, A320-231, A320-232, and 
A320-233 airplanes; and Model A321-111, A321-112, A321-131, A321-
211, A321-212, A321-213, A321-231, and A321-232 airplanes; 
certificated in any category, all manufacturer serial numbers.

(d) Subject

    Air Transport Association (ATA) of America Code 27, Flight 
controls.

(e) Reason

    This AD was prompted by reports of missing assembly hardware on 
the trimmable horizontal stabilizer actuator (THSA). We are issuing 
this AD to address uncontrolled movement of the horizontal 
stabilizer as a result of the latent (undetected) failure of the 
THSA's primary load path and consequent loss of control of the 
airplane.

(f) Compliance

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

(g) Repetitive Actions: Lower THSA Attachment

    Before exceeding 20 months since airplane first flight, or since 
airplane first flight following last THSA replacement, or within 20 
months after the last inspection of the lower THSA attachment as 
specified in the instructions of Airbus Service Bulletin A320-27-
1164, Revision 02 up to Revision 09, whichever occurs latest, do the 
actions specified in paragraphs (g)(1), (g)(2), and (g)(3) of this 
AD concurrently, in accordance with the Accomplishment Instructions 
of Airbus Service Bulletin A320-27-1164, Revision 13, dated August 
8, 2016, Repeat the actions thereafter at intervals not to exceed 20 
months.
    (1) Check the clearance between the secondary nut trunnions and 
the junction plates at the lower THSA attachment.
    (2) Do a general visual inspection of the lower THSA attachment 
for correct installation of attachment parts.
    (3) Do a general visual inspection of the ball screw for dents.

(h) Repetitive Inspections: Upper THSA Attachment

    Before exceeding 10 months since airplane first flight, or since 
airplane first flight following last THSA replacement, or within 10 
months after the last inspection of the upper THSA attachment as 
specified in the instructions of Airbus Service Bulletin A320-27-
1164, Revision 02 up to Revision 09, whichever occurs latest, do the 
actions specified in paragraphs (h)(1) and (h)(2) of this AD 
concurrently, in accordance with the Accomplishment Instructions of 
Airbus Service Bulletin A320-27-1164, Revision 13, dated August 8, 
2016. Repeat the inspections thereafter at intervals not to exceed 
10 months.
    (1) Do a general visual inspection of the upper THSA attachment 
for correct installation, cracks, damage, and metallic particles.
    (2) Do a general visual inspection of the upper attachment for 
correct installation of attachment parts.

[[Page 16254]]

(i) Related Investigative and Corrective Actions

    If, during any action required by paragraph (g) or (h) of this 
AD, any discrepancy is detected (e.g., any installation deviation, 
cracking, damage, metallic particle, or dent is found), before 
further flight, accomplish all applicable related investigative and 
corrective actions in accordance with the Accomplishment 
Instructions of Airbus Service Bulletin A320-27-1164, Revision 13, 
dated August 8, 2016; except as required by paragraph (o)(1) of this 
AD.

(j) Reporting Requirements for Actions Required by Paragraphs (g) and 
(h) of This AD

    In case of any findings during any action required by paragraph 
(g) or (h) of this AD, report the inspection results to Airbus using 
the applicable ``Inspection Reporting Sheet'' of Airbus Service 
Bulletin A320-27-1164, Revision 13, dated August 8, 2016, at the 
applicable time specified in paragraph (j)(1) or (j)(2) of this AD. 
If operators have reported findings as part of obtaining any 
corrective actions approved by the EASA Design Organization Approval 
(DOA), operators are not required to report those findings as 
specified in this paragraph.
    (1) If the inspection or check was done on or after the 
effective date of this AD: Submit the report within 30 days after 
the inspection.
    (2) If the inspection or check was done before the effective 
date of this AD: Submit the report within 30 days after the 
effective date of this AD.

(k) One-Time Inspection and Replacement

    For airplanes on which the THSA has been replaced or reinstalled 
since the date of issuance of the original certificate of 
airworthiness or the date of issuance of the original export 
certificate of airworthiness: Within 6 months after the effective 
date of this AD, accomplish a detailed inspection of the THSA lower 
attachment gap clearances, in accordance with the instructions of 
Airbus Alert Operators Transmission (AOT) A27N010-17, Revision 01, 
dated October 17, 2017, including AOT Appendix_A27N010-17. If the 
measured gap is less than 0.5 mm, before further flight, replace the 
THSA, including doing an inspection of the THSA parts to confirm the 
bushing is missing and applicable corrective actions, in accordance 
with the instructions of Airbus AOT A27N010-17, Revision 01, dated 
October 17, 2017, including AOT Appendix_A27N010-17; and United 
Technologies Corporation (UTC) Aerospace Systems Repair Instructions 
RF-DSC-1361-17, Version 00, including Appendix A, dated May 24, 
2017, as applicable, except as required by paragraph (o)(2) of this 
AD.

(l) Definition of Groups

    For the purpose of this AD: Group 1 airplanes are those that, on 
the effective date of this AD, do not have the electrical load 
sensing device (ELSD) activated. Group 2 airplanes are those that, 
on the effective date of this AD, have the ELSD activated.

(m) Activation and Concurrent Modification

    For Group 1 airplanes (see paragraph (l) of this AD): Do the 
actions specified in paragraphs (m)(1) and (m)(2) of this AD.
    (1) Within 4 years after the effective date of this AD, activate 
the ELSD of the THSA on the airplane, in accordance with the 
Accomplishment Instructions of Airbus Service Bulletin A320-27-1248, 
Revision 00, dated March 6, 2017.
    (2) Concurrently with or before the activation of the ELSD 
required by paragraph (m)(1) of this AD, modify the airplane, in 
accordance with the Accomplishment Instructions of Airbus Service 
Bulletin A320-27-1245, Revision 00, dated March 6, 2017; or Airbus 
Service Bulletin A320-27-1246, Revision 01, dated November 4, 2016; 
as applicable.

(n) Concurrent Requirement for Airplanes Equipped With THSAs That Do 
Not Have ELSDs

    For an airplane equipped with a THSA having a part number listed 
in Figure 1 to paragraphs (n), (p), and (q) of this AD: Concurrently 
with or before the activation required by paragraph (m)(1) of this 
AD, modify the airplane, in accordance with the Accomplishment 
Instructions of Airbus Service Bulletin A320-27-1247, Revision 00, 
dated March 6, 2017.

[[Page 16255]]

[GRAPHIC] [TIFF OMITTED] TP16AP18.025

(o) Exceptions to Service Information

    (1) Where Airbus Service Bulletin A320-27-1164, Revision 13, 
dated August 8, 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 (v)(2) of this 
AD.
    (2) Where Airbus AOT A27N010-17, Revision 01, dated October 17, 
2017, specifies to contact Airbus for appropriate action: Before 
further flight, accomplish corrective actions in accordance with the 
procedures specified in paragraph (v)(2) of this AD.

(p) Parts Installation

    Do not install on any airplane a THSA with a part number listed 
in Figure 1 to paragraphs (n), (p), and (q) of this AD and do not 
deactivate the ELSD at the times specified in paragraph (p)(1) or 
(p)(2) of this AD, as applicable.
    (1) Group 1 airplanes (see paragraph (l) of this AD): After 
modification of the airplane as required by paragraph (m)(1) of this 
AD.
    (2) Group 2 airplanes (see paragraph (l) of this AD): From the 
effective date of this AD.

(q) Method of Compliance

    An airplane on which Airbus modification 155955 has been 
embodied in production is considered compliant with paragraphs 
(m)(1), (m)(2), and (n) of this AD, provided that it is determined 
that no THSA with a part number listed in Figure 1 to paragraphs 
(n), (p), and (q) of this AD is installed on that airplane, and that 
the ELSD remains activated. A review of airplane maintenance records 
is acceptable to make this determination, provided those records can 
be relied upon for that purpose.

(r) Airplanes Not Affected by the Requirements of Paragraph (k) of This 
AD

    The inspection required by paragraph (k) of this AD is not 
required for airplanes on which the THSA has been installed as 
specified in the instructions of Airbus A320 Airplane Maintenance 
Manual (AMM) 27-44-51-400-001, dated May 2017, or subsequent.

(s) Credit for Previous Actions

    (1) This paragraph provides credit for initial actions required 
by paragraphs (g), (h), (i), and (j) of this AD, if those actions 
were performed before the effective date of this AD using the Airbus 
Service Bulletin A320-27-1164, Revision 10, dated March 2017, 2014; 
Revision 11, dated December 15, 2014; or Revision 12, dated March 
23, 2016.
    (2) This paragraph provides credit for actions required by 
paragraph (k) of this AD, if those actions were performed before the 
effective date of this AD using Airbus AOT A27N010-17, dated March 
27, 2017.
    (3) This paragraph provides credit for actions required by 
paragraph (m)(2) of this AD, if those actions were performed before 
the effective date of this AD using Airbus Service Bulletin A320-27-
1246, dated March 20, 2015.

(t) No Terminating Action for Repetitive Inspections in This AD

    Accomplishment on an airplane of the one-time inspection and 
replacement, as applicable, specified in paragraph (k) of this AD 
and the modifications specified in paragraphs (m)(1), (m)(2), and 
(n) of this AD,

[[Page 16256]]

as applicable, do not constitute terminating action for the 
repetitive inspections required by paragraphs (g) and (h) of this AD 
for that airplane.

(u) Terminating Action for Other FAA ADs

    Accomplishing the initial actions required by paragraphs (g) and 
(h) of this AD, and accomplishing the applicable actions required by 
paragraphs (i) and (j) of this AD, terminates all requirements of AD 
2007-06-02 and AD 2008-09-16.

(v) 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 (x)(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 DOA. If approved by the DOA, 
the approval must include the DOA-authorized signature.
    (3) Paperwork Reduction Act Burden Statement: A federal agency 
may not conduct or sponsor, and a person is not required to respond 
to, nor shall a person be subject to a penalty for failure to comply 
with a collection of information subject to the requirements of the 
Paperwork Reduction Act unless that collection of information 
displays a current valid OMB Control Number. The OMB Control Number 
for this information collection is 2120-0056. Public reporting for 
this collection of information is estimated to be approximately 1 
hour per response, including the time for reviewing instructions, 
completing and reviewing the collection of information. All 
responses to this collection of information are mandatory. Comments 
concerning the accuracy of this burden and suggestions for reducing 
the burden should be directed to the FAA at: 800 Independence Ave. 
SW, Washington, DC 20591, Attn: Information Collection Clearance 
Officer, AES-200.
    (4) Required for Compliance (RC): Except as specified in 
paragraph in (o)(1) 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.

(w) Special Flight Permits

    Special flight permits, as described in Section 21.197 and 
Section 21.199 of the Federal Aviation Regulations (14 CFR 21.197 
and 21.199), are not allowed.

(x) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) EASA Airworthiness Directive 2017-0237, dated December 4, 
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-2018-0298.
    (2) For more information about this AD, contact Sanjay Ralhan, 
Aerospace Engineer, International Section, Transport Standards 
Branch, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone 
and fax: 206-231-3223.
    (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 UTAS service information identified in this AD, contact 
United Technologies Corporation Aerospace Systems (UTAS): Goodrich 
Corporation, Actuation Systems, Stafford Road, Fordhouses, 
Wolverhampton WV10 7EH, England; phone: +44 (0) 1902 624938; fax: 
+44 (0) 1902 788100; email: [email protected]; 
internet: http://www.goodrich.com/TechPubs.
    (5) You may view this service information at the FAA, Transport 
Standards Branch, 2200 South 216th Street, Des Moines, WA. For 
information on the availability of this material at the FAA, call 
206-231-3195.

    Issued in Des Moines, Washington, on March 30, 2018.
Chris Spangenberg,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2018-07656 Filed 4-13-18; 8:45 am]
 BILLING CODE 4910-13-P



                                                                          Federal Register / Vol. 83, No. 73 / Monday, April 16, 2018 / Proposed Rules                                                16251

                                                   Issued in Des Moines, Washington, on                  p.m., Monday through Friday, except                      We will post all comments we
                                                 March 22, 2018.                                         Federal holidays.                                      receive, without change, to http://
                                                 Michael Kaszycki,                                         For Airbus service information                       www.regulations.gov, including any
                                                 Acting Director, System Oversight Division,             identified in this NPRM, contact Airbus,               personal information you provide. We
                                                 Aircraft Certification Service.                         Airworthiness Office—EIAS, 1 Rond                      will also post a report summarizing each
                                                 [FR Doc. 2018–06591 Filed 4–13–18; 8:45 am]             Point Maurice Bellonte, 31707 Blagnac                  substantive verbal contact we receive
                                                 BILLING CODE 4910–13–P                                  Cedex, France; telephone +33 5 61 93 36                about this NPRM.
                                                                                                         96; fax +33 5 61 93 44 51; email
                                                                                                         account.airworth-eas@airbus.com;                       Discussion
                                                 DEPARTMENT OF TRANSPORTATION                            internet http://www.airbus.com.                          The European Aviation Safety Agency
                                                                                                           For United Technologies Corporation                  (EASA), which is the Technical Agent
                                                 Federal Aviation Administration                         Aerospace Systems (UTAS) service                       for the Member States of the European
                                                                                                         information identified in this AD,                     Union, has issued EASA Airworthiness
                                                 14 CFR Part 39                                          contact United Technologies                            Directive 2017–0237, dated December 4,
                                                                                                         Corporation Aerospace Systems (UTAS):                  2017 (referred to after this as the
                                                 [Docket No. FAA–2018–0298; Product
                                                 Identifier 2017–NM–179–AD]                              Goodrich Corporation, Actuation                        Mandatory Continuing Airworthiness
                                                                                                         Systems, Stafford Road, Fordhouses,                    Information, or ‘‘the MCAI’’), to correct
                                                 RIN 2120–AA64                                           Wolverhampton WV10 7EH, England;                       an unsafe condition for all Airbus
                                                                                                         phone: +44 (0) 1902 624938; fax: +44 (0)               Model A318 and A319 series airplanes;
                                                 Airworthiness Directives; Airbus                        1902 788100; email:                                    Model A320–211, A320–212, A320–214,
                                                 Airplanes                                               techpubs.wolverhampton@                                A320–216, A320–231, A320–232, A320–
                                                 AGENCY: Federal Aviation                                goodrich.com; internet: http://                        233 airplanes; and Model A321–111,
                                                 Administration (FAA), DOT.                              www.goodrich.com/TechPubs.                             A321–112, A321–131, A321–211, A321–
                                                                                                           You may view this service                            212, A321–213, A321–231, and A321–
                                                 ACTION: Notice of proposed rulemaking
                                                                                                         information at the FAA, Transport                      232 airplanes. The MCAI states:
                                                 (NPRM).                                                 Standards Branch, 2200 South 216th                        The Trimmable Horizontal Stabilizer
                                                 SUMMARY:   We propose to adopt a new                    Street, Des Moines, WA. For                            Actuator (THSA) of Airbus A320 Family
                                                 airworthiness directive (AD) for all                    information on the availability of this                aeroplanes has been rig-tested to check
                                                 Airbus Model A318 and A319 series                       material at the FAA, call 206–231–3195.                secondary load path behaviour in case of
                                                 airplanes; Model A320–211, A320–212,                                                                           primary load path failure. In that
                                                                                                         Examining the AD Docket                                configuration, the loads are transferred to the
                                                 A320–214, A320–216, A320–231, A320–
                                                                                                           You may examine the AD docket on                     secondary load path, which should jam,
                                                 232, and A320–233 airplanes; and                                                                               preventing any Trimmable Horizontal
                                                                                                         the internet at http://
                                                 Model A321–111, A321–112, A321–131,                                                                            Stabilizer motion. The test results showed
                                                                                                         www.regulations.gov by searching for
                                                 A321–211, A321–212, A321–213, A321–                                                                            that the secondary load path did not jam as
                                                                                                         and locating Docket No. FAA–2018–
                                                 231, and A321–232 airplanes. This                                                                              expected, preventing detection of the primary
                                                                                                         0298; or in person at the Docket                       load path failure. To verify the integrity of
                                                 proposed AD was prompted by reports                     Management Facility between 9 a.m.
                                                 of missing assembly hardware on the                                                                            the THSA primary load path and the correct
                                                                                                         and 5 p.m., Monday through Friday,                     installation of the THSA, Airbus issued
                                                 trimmable horizontal stabilizer actuator                except Federal holidays. The AD docket                 Service Bulletin (SB) A320–27–1164, later
                                                 (THSA). This proposed AD would                          contains this NPRM, the regulatory                     revised multiple times, and SB A320–
                                                 require repetitive inspections and                      evaluation, any comments received, and                 27A1179, and EASA issued AD 2006–0223
                                                 checks of the lower and upper THSA                      other information. The street address for              [which corresponds to FAA AD 2007–06–02,
                                                 attachments and applicable related                      the Docket Operations office (telephone                Amendment 39–14983 (72 FR 12072, March
                                                 investigative and corrective actions; a                                                                        15, 2007) (‘‘AD 2007–06–02’’)], AD 2007–
                                                                                                         800–647–5527) is in the ADDRESSES                      0178 [which corresponds to FAA AD 2008–
                                                 one-time inspection of the THSA lower                   section. Comments will be available in
                                                 attachment and replacement as                                                                                  09–16, Amendment 39–15497 (73 FR 24160,
                                                                                                         the AD docket shortly after receipt.                   May 2, 2008)(‘‘AD 2008–09–16’’)], AD 2008–
                                                 applicable; and, for certain airplanes,                                                                        0150, and AD 2014–0147, each AD
                                                                                                         FOR FURTHER INFORMATION CONTACT:
                                                 activation of the electrical load sensing                                                                      superseding the previous one, requiring one-
                                                                                                         Sanjay Ralhan, Aerospace Engineer,
                                                 device (ELSD) and concurrent                                                                                   time and repetitive inspections.
                                                                                                         International Section, Transport
                                                 modifications. We are proposing this                                                                              Since EASA AD 2014–0147 was issued,
                                                                                                         Standards Branch, FAA, 2200 South                      Airbus designed a new device, called
                                                 AD to address the unsafe condition on
                                                                                                         216th Street, Des Moines, WA 98198;                    Electrical Load Sensing Device (ELSD), to
                                                 these products.
                                                                                                         phone and fax: 206–231–3223.                           introduce a new mean of THSA upper
                                                 DATES: We must receive comments on
                                                                                                         SUPPLEMENTARY INFORMATION:                             secondary load path engagement detection.
                                                 this proposed AD by May 31, 2018.                                                                              Consequently, Airbus issued several SBs
                                                 ADDRESSES: You may send comments,                       Comments Invited                                       (Airbus SB A320–27–1245, A320–27–1246,
                                                 using the procedures found in 14 CFR                      We invite you to send any written                    and A320–27–1247, depending on aeroplane
                                                 11.43 and 11.45, by any of the following                relevant data, views, or arguments about               configuration) providing instructions to
                                                                                                                                                                install the wiring provision for ELSD
                                                 methods:                                                this proposal. Send your comments to                   installation and to install ELSD on the THSA,
                                                    • Federal eRulemaking Portal: Go to                  an address listed under the ADDRESSES                  and SB A320–27–1248, providing
                                                 http://www.regulations.gov. Follow the                  section. Include ‘‘Docket No. FAA–                     instructions to activate the ELSD. Airbus also
                                                 instructions for submitting comments.                   2018–0298; Product Identifier 2017–                    revised SB A320–27–1164, now at Revision
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                                                    • Fax: 202–493–2251.                                 NM–179–AD’’ at the beginning of your                   13, including instructions applicable for
                                                    • Mail: U.S. Department of                           comments. We specifically invite                       aircraft equipped with ELSD.
                                                 Transportation, Docket Operations, M–                   comments on the overall regulatory,                       Furthermore, following a visual inspection
                                                 30, West Building Ground Floor, Room                    economic, environmental, and energy                    of the THSA, an operator reported that the
                                                                                                                                                                THSA was found with a bush missing,
                                                 W12–140, 1200 New Jersey Avenue SE,                     aspects of this NPRM. We will consider                 inducing torqueing of the THSA lower
                                                 Washington, DC 20590.                                   all comments received by the closing                   attachment primary bolt against the THSA
                                                    • Hand Delivery: Deliver to Mail                     date and may amend this NPRM based                     lug, which resulted in the application of a
                                                 address above between 9 a.m. and 5                      on those comments.                                     transverse force on the lug.



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                                                 16252                    Federal Register / Vol. 83, No. 73 / Monday, April 16, 2018 / Proposed Rules

                                                    Prompted by several other identical                    Related Service Information Under 1                             March 6, 2017. This service information
                                                 findings, Airbus released Alert Operator                  CFR Part 51                                                     describes the procedure to modify the
                                                 Transmission (AOT) A27N010–17 to provide                                                                                  upper attachment secondary load path
                                                                                                              Airbus has issued Alert Operators
                                                 instructions for inspection and associated                                                                                of the THSA to accommodate the correct
                                                                                                           Transmission (AOT) A27N010–17,
                                                 corrective actions.                                                                                                       installation of the ELSD.
                                                                                                           Revision 01, dated October 17, 2017,
                                                    For the reasons described above, this AD                                                                                 Airbus has issued Service Bulletin
                                                                                                           including AOT Appendix_A27N010–17.
                                                 retains the requirements of EASA AD 2014–                                                                                 A320–27–1248, Revision 00, dated
                                                                                                           This service information describes the
                                                 0147, which is superseded, and requires                                                                                   March 6, 2017. This service information
                                                                                                           procedure for a one-time general visual
                                                 installation of ELSD on the THSA, ELSD
                                                                                                           inspection of the THSA lower                                    describes the procedure to activate the
                                                 activation, and a one-time inspection to
                                                                                                           attachment to measure the gap between                           ELSD.
                                                 verify the bush presence on the THSA lower
                                                                                                           the THSA lower attachment tab washer                              UTAS has issued United
                                                 attachment.
                                                                                                           and attachment plates and replacement                           Technologies Corporation (UTC)
                                                    The unsafe condition is uncontrolled                   of the THSA lower attachment if the                             Aerospace Systems Repair Instructions
                                                 movement of the horizontal stabilizer as                  measured gap is less than 0.5 mm. The                           RF–DSC–1361–17, Version 00,
                                                 a result of the latent (undetected) failure               replacement includes doing an                                   including Appendix A, dated May 24,
                                                 of the THSA’s primary load path and                       inspection of the THSA parts to confirm                         2017. This service information describes
                                                 consequent loss of control of the                         the bushing is missing and applicable                           repair instructions to follow if the
                                                 airplane.                                                 corrective actions (i.e., repair).                              bushing is missing as specified in AOT
                                                                                                              Airbus has issued Service Bulletin                           A27N010–17, Revision 01, dated
                                                    The required actions include                           A320–27–1164, Revision 13, dated
                                                 repetitive inspections and checks of the                                                                                  October 17, 2017.
                                                                                                           August 8, 2016. This service                                      This service information is reasonably
                                                 lower and upper THSA attachments and                      information describes procedures for a
                                                 applicable related investigative and                                                                                      available because the interested parties
                                                                                                           general visual inspection of the upper                          have access to it through their normal
                                                 corrective actions; a one-time inspection                 THSA attachments for correct
                                                 of the THSA lower attachment and                                                                                          course of business or by the means
                                                                                                           installation, cracks, damage and                                identified in the ADDRESSES section.
                                                 replacement as applicable; and, for                       metallic particles; a general visual
                                                 certain airplanes, activation of the ELSD                 inspection of the upper attachment for                          FAA’s Determination and Requirements
                                                 and concurrent modifications.                             correct installation; a check of the                            of This Proposed AD
                                                    Related investigative actions include                  clearance between secondary nut
                                                                                                                                                                             This product has been approved by
                                                 an inspection of the upper THSA                           trunnions and junction plates and
                                                                                                                                                                           the aviation authority of another
                                                 attachment, an inspection of the lower                    correct installation of the lower THSA
                                                                                                                                                                           country, and is approved for operation
                                                 attachment, and a check of the upper                      attachment; a general visual inspection
                                                                                                                                                                           in the United States. Pursuant to our
                                                 and lower clearance between the                           of the THSA ball screw to check for the
                                                                                                           absence of dents; and applicable related                        bilateral agreement with the State of
                                                 secondary nut trunnion and the junction                                                                                   Design Authority, we have been notified
                                                 plate. Corrective actions include                         investigative and corrective actions.
                                                                                                              Airbus has issued Service Bulletin                           of the unsafe condition described in the
                                                 replacement of the THSA and repair.                                                                                       MCAI and service information
                                                                                                           A320–27–1245, Revision 00, dated
                                                    You may examine the MCAI in the                                                                                        referenced above. We are proposing this
                                                                                                           March 6, 2017. This service information
                                                 AD docket on the internet at http://                                                                                      AD because we evaluated all pertinent
                                                                                                           describes the procedure to modify the
                                                 www.regulations.gov by searching for                                                                                      information and determined an unsafe
                                                                                                           wiring provisions for the ELSD.
                                                 and locating Docket No. FAA–2018–                            Airbus has issued Service Bulletin                           condition exists and is likely to exist or
                                                 0298.                                                     A320–27–1246, Revision 01, dated                                develop on other products of these same
                                                                                                           November 4, 2016. This service                                  type designs.
                                                 Relationship Between Proposed AD and
                                                 AD 2007–06–02 and AD 2008–09–16                           information describes the procedures to                         Costs of Compliance
                                                                                                           adapt the wiring provision of the ELSD
                                                   Accomplishment of the certain                           and THSA to accommodate the correct                                We estimate that this proposed AD
                                                 proposed actions would terminate all                      installation of the ELSD.                                       affects 1,180 airplanes of U.S. registry.
                                                 requirements of AD 2007–06–02 and AD                         Airbus has issued Service Bulletin                              We estimate the following costs to
                                                 2008–09–16.                                               A320–27–1247, Revision 00, dated                                comply with this proposed AD:

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

                                                 Inspections, Check,         Activation,   and      Up to 59 work-hours x $85 per hour = $5,015 ..                 Up to               Up to            Up to $24,034,240.
                                                   Modifications.                                                                                                    $15,353.            $20,368.



                                                   We estimate the following costs to do                   be required based on the results of the                         of determining the number of aircraft
                                                 any necessary replacements that would                     proposed inspections. We have no way                            that might need this replacement:
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                                                                                                                        ON-CONDITION COSTS
                                                         Action                                                       Labor cost                                                       Parts cost         Cost per product

                                                 Replacement ..........   11 work-hours × $85 per hour = $935 ...................................................................            $240,000             $240,935




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                                                                          Federal Register / Vol. 83, No. 73 / Monday, April 16, 2018 / Proposed Rules                                                 16253

                                                   We have received no definitive data                   Regulatory Findings                                    A321–131, A321–211, A321–212, A321–213,
                                                 that would enable us to provide cost                                                                           A321–231, and A321–232 airplanes;
                                                                                                           We determined that this proposed AD                  certificated in any category, all manufacturer
                                                 estimates for the on-condition repairs                  would not have federalism implications
                                                 specified in this proposed AD.                                                                                 serial numbers.
                                                                                                         under Executive Order 13132. This
                                                 Paperwork Reduction Act                                 proposed AD would not have a                           (d) Subject

                                                   A federal agency may not conduct or                   substantial direct effect on the States, on             Air Transport Association (ATA) of
                                                 sponsor, and a person is not required to                the relationship between the national                  America Code 27, Flight controls.
                                                 respond to, nor shall a person be subject               Government and the States, or on the                   (e) Reason
                                                 to penalty for failure to comply with a                 distribution of power and
                                                                                                         responsibilities among the various                        This AD was prompted by reports of
                                                 collection of information subject to the                                                                       missing assembly hardware on the trimmable
                                                 requirements of the Paperwork                           levels of government.
                                                                                                           For the reasons discussed above, I                   horizontal stabilizer actuator (THSA). We are
                                                 Reduction Act unless that collection of                                                                        issuing this AD to address uncontrolled
                                                 information displays a current valid                    certify this proposed regulation:
                                                                                                                                                                movement of the horizontal stabilizer as a
                                                 OMB control number. The control                           1. Is not a ‘‘significant regulatory
                                                                                                                                                                result of the latent (undetected) failure of the
                                                 number for the collection of information                action’’ under Executive Order 12866;                  THSA’s primary load path and consequent
                                                                                                           2. Is not a ‘‘significant rule’’ under the           loss of control of the airplane.
                                                 required by this NPRM is 2120–0056.
                                                                                                         DOT Regulatory Policies and Procedures
                                                 The paperwork cost associated with this                                                                        (f) Compliance
                                                                                                         (44 FR 11034, February 26, 1979);
                                                 NPRM has been detailed in the Costs of
                                                                                                           3. Will not affect intrastate aviation in              Comply with this AD within the
                                                 Compliance section of this document
                                                                                                         Alaska; and                                            compliance times specified, unless already
                                                 and includes time for reviewing
                                                                                                           4. Will not have a significant                       done.
                                                 instructions, as well as completing and
                                                                                                         economic impact, positive or negative,                 (g) Repetitive Actions: Lower THSA
                                                 reviewing the collection of information.
                                                                                                         on a substantial number of small entities              Attachment
                                                 Therefore, all reporting associated with
                                                                                                         under the criteria of the Regulatory
                                                 this NPRM is mandatory. Comments                                                                                  Before exceeding 20 months since airplane
                                                                                                         Flexibility Act.
                                                 concerning the accuracy of this burden                                                                         first flight, or since airplane first flight
                                                 and suggestions for reducing the burden                 List of Subjects in 14 CFR Part 39                     following last THSA replacement, or within
                                                 should be directed to the FAA at 800                                                                           20 months after the last inspection of the
                                                                                                           Air transportation, Aircraft, Aviation               lower THSA attachment as specified in the
                                                 Independence Ave. SW, Washington,                       safety, Incorporation by reference,
                                                 DC 20591, ATTN: Information                                                                                    instructions of Airbus Service Bulletin A320–
                                                                                                         Safety.                                                27–1164, Revision 02 up to Revision 09,
                                                 Collection Clearance Officer, AES–200.
                                                                                                         The Proposed Amendment                                 whichever occurs latest, do the actions
                                                 Authority for This Rulemaking                                                                                  specified in paragraphs (g)(1), (g)(2), and
                                                                                                           Accordingly, under the authority                     (g)(3) of this AD concurrently, in accordance
                                                    Title 49 of the United States Code                   delegated to me by the Administrator,                  with the Accomplishment Instructions of
                                                 specifies the FAA’s authority to issue                  the FAA proposes to amend 14 CFR part                  Airbus Service Bulletin A320–27–1164,
                                                 rules on aviation safety. Subtitle I,                   39 as follows:                                         Revision 13, dated August 8, 2016, Repeat
                                                 section 106, describes the authority of                                                                        the actions thereafter at intervals not to
                                                 the FAA Administrator. ‘‘Subtitle VII:                  PART 39—AIRWORTHINESS                                  exceed 20 months.
                                                 Aviation Programs,’’ describes in more                  DIRECTIVES                                                (1) Check the clearance between the
                                                 detail the scope of the Agency’s                                                                               secondary nut trunnions and the junction
                                                 authority.                                              ■ 1. The authority citation for part 39                plates at the lower THSA attachment.
                                                    We are issuing this rulemaking under                 continues to read as follows:                             (2) Do a general visual inspection of the
                                                 the authority described in ‘‘Subtitle VII,                  Authority: 49 U.S.C. 106(g), 40113, 44701.         lower THSA attachment for correct
                                                 Part A, Subpart III, Section 44701:                                                                            installation of attachment parts.
                                                 General requirements.’’ Under that                      § 39.13    [Amended]                                      (3) Do a general visual inspection of the
                                                 section, Congress charges the FAA with                  ■ 2. The FAA amends § 39.13 by adding                  ball screw for dents.
                                                 promoting safe flight of civil aircraft in              the following new airworthiness                        (h) Repetitive Inspections: Upper THSA
                                                 air commerce by prescribing regulations                 directive (AD):                                        Attachment
                                                 for practices, methods, and procedures                  Airbus: Docket No. FAA–2018–0298; Product                 Before exceeding 10 months since airplane
                                                 the Administrator finds necessary for                       Identifier 2017–NM–179–AD.                         first flight, or since airplane first flight
                                                 safety in air commerce. This regulation                                                                        following last THSA replacement, or within
                                                 is within the scope of that authority                   (a) Comments Due Date
                                                                                                                                                                10 months after the last inspection of the
                                                 because it addresses an unsafe condition                  We must receive comments by May 31,                  upper THSA attachment as specified in the
                                                 that is likely to exist or develop on                   2018.                                                  instructions of Airbus Service Bulletin A320–
                                                 products identified in this rulemaking                  (b) Affected ADs                                       27–1164, Revision 02 up to Revision 09,
                                                 action.                                                                                                        whichever occurs latest, do the actions
                                                                                                           This AD affects AD 2007–06–02,
                                                    This proposed AD is issued in                        Amendment 39–14983 (72 FR 12072, March
                                                                                                                                                                specified in paragraphs (h)(1) and (h)(2) of
                                                 accordance with authority delegated by                                                                         this AD concurrently, in accordance with the
                                                                                                         15, 2007) (‘‘AD 2007–06–02’’) and AD 2008–
                                                 the Executive Director, Aircraft                                                                               Accomplishment Instructions of Airbus
                                                                                                         09–16, Amendment 39–15497 (73 FR 24160,
                                                 Certification Service, as authorized by                 May 2, 2008) (‘‘AD 2008–09–16’’).                      Service Bulletin A320–27–1164, Revision 13,
                                                 FAA Order 8000.51C. In accordance                                                                              dated August 8, 2016. Repeat the inspections
                                                                                                         (c) Applicability
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                                                                                                                                                                thereafter at intervals not to exceed 10
                                                 with that order, issuance of ADs is
                                                                                                            This AD applies to Airbus Model A318–               months.
                                                 normally a function of the Compliance                                                                             (1) Do a general visual inspection of the
                                                 and Airworthiness Division, but during                  111, A318–112, A318–121, and A318–122
                                                                                                         airplanes; Model A319–111, A319–112,                   upper THSA attachment for correct
                                                 this transition period, the Executive                   A319–113, A319–114, A319–115, A319–131,                installation, cracks, damage, and metallic
                                                 Director has delegated the authority to                 A319–132, and A319–133 airplanes; Model                particles.
                                                 issue ADs applicable to transport                       A320–211, A320–212, A320–214, A320–216,                   (2) Do a general visual inspection of the
                                                 category airplanes to the Director of the               A320–231, A320–232, and A320–233                       upper attachment for correct installation of
                                                 System Oversight Division.                              airplanes; and Model A321–111, A321–112,               attachment parts.



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                                                 16254                    Federal Register / Vol. 83, No. 73 / Monday, April 16, 2018 / Proposed Rules

                                                 (i) Related Investigative and Corrective                the report within 30 days after the effective          airplanes are those that, on the effective date
                                                 Actions                                                 date of this AD.                                       of this AD, have the ELSD activated.
                                                    If, during any action required by paragraph          (k) One-Time Inspection and Replacement                (m) Activation and Concurrent Modification
                                                 (g) or (h) of this AD, any discrepancy is
                                                 detected (e.g., any installation deviation,                For airplanes on which the THSA has been              For Group 1 airplanes (see paragraph (l) of
                                                 cracking, damage, metallic particle, or dent is         replaced or reinstalled since the date of              this AD): Do the actions specified in
                                                 found), before further flight, accomplish all           issuance of the original certificate of                paragraphs (m)(1) and (m)(2) of this AD.
                                                 applicable related investigative and                    airworthiness or the date of issuance of the             (1) Within 4 years after the effective date
                                                 corrective actions in accordance with the               original export certificate of airworthiness:          of this AD, activate the ELSD of the THSA
                                                 Accomplishment Instructions of Airbus                   Within 6 months after the effective date of            on the airplane, in accordance with the
                                                 Service Bulletin A320–27–1164, Revision 13,             this AD, accomplish a detailed inspection of           Accomplishment Instructions of Airbus
                                                 dated August 8, 2016; except as required by             the THSA lower attachment gap clearances,              Service Bulletin A320–27–1248, Revision 00,
                                                 paragraph (o)(1) of this AD.                            in accordance with the instructions of Airbus
                                                                                                                                                                dated March 6, 2017.
                                                                                                         Alert Operators Transmission (AOT)
                                                 (j) Reporting Requirements for Actions                                                                           (2) Concurrently with or before the
                                                                                                         A27N010–17, Revision 01, dated October 17,
                                                 Required by Paragraphs (g) and (h) of This              2017, including AOT Appendix_A27N010–                  activation of the ELSD required by paragraph
                                                 AD                                                      17. If the measured gap is less than 0.5 mm,           (m)(1) of this AD, modify the airplane, in
                                                                                                         before further flight, replace the THSA,               accordance with the Accomplishment
                                                    In case of any findings during any action                                                                   Instructions of Airbus Service Bulletin A320–
                                                 required by paragraph (g) or (h) of this AD,            including doing an inspection of the THSA
                                                                                                         parts to confirm the bushing is missing and            27–1245, Revision 00, dated March 6, 2017;
                                                 report the inspection results to Airbus using
                                                                                                         applicable corrective actions, in accordance           or Airbus Service Bulletin A320–27–1246,
                                                 the applicable ‘‘Inspection Reporting Sheet’’
                                                 of Airbus Service Bulletin A320–27–1164,                with the instructions of Airbus AOT                    Revision 01, dated November 4, 2016; as
                                                 Revision 13, dated August 8, 2016, at the               A27N010–17, Revision 01, dated October 17,             applicable.
                                                 applicable time specified in paragraph (j)(1)           2017, including AOT Appendix_A27N010–                  (n) Concurrent Requirement for Airplanes
                                                 or (j)(2) of this AD. If operators have reported        17; and United Technologies Corporation                Equipped With THSAs That Do Not Have
                                                 findings as part of obtaining any corrective            (UTC) Aerospace Systems Repair Instructions            ELSDs
                                                 actions approved by the EASA Design                     RF–DSC–1361–17, Version 00, including
                                                 Organization Approval (DOA), operators are              Appendix A, dated May 24, 2017, as                       For an airplane equipped with a THSA
                                                 not required to report those findings as                applicable, except as required by paragraph            having a part number listed in Figure 1 to
                                                 specified in this paragraph.                            (o)(2) of this AD.                                     paragraphs (n), (p), and (q) of this AD:
                                                    (1) If the inspection or check was done on                                                                  Concurrently with or before the activation
                                                 or after the effective date of this AD: Submit          (l) Definition of Groups                               required by paragraph (m)(1) of this AD,
                                                 the report within 30 days after the                        For the purpose of this AD: Group 1                 modify the airplane, in accordance with the
                                                 inspection.                                             airplanes are those that, on the effective date        Accomplishment Instructions of Airbus
                                                    (2) If the inspection or check was done              of this AD, do not have the electrical load            Service Bulletin A320–27–1247, Revision 00,
                                                 before the effective date of this AD: Submit            sensing device (ELSD) activated. Group 2               dated March 6, 2017.
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                                                                          Federal Register / Vol. 83, No. 73 / Monday, April 16, 2018 / Proposed Rules                                                 16255




                                                 (o) Exceptions to Service Information                     (2) Group 2 airplanes (see paragraph (l) of          (s) Credit for Previous Actions
                                                    (1) Where Airbus Service Bulletin A320–              this AD): From the effective date of this AD.             (1) This paragraph provides credit for
                                                 27–1164, Revision 13, dated August 8, 2016,                                                                    initial actions required by paragraphs (g), (h),
                                                                                                         (q) Method of Compliance
                                                 specifies to contact Airbus for appropriate                                                                    (i), and (j) of this AD, if those actions were
                                                 action, and specifies that action as ‘‘RC’’               An airplane on which Airbus modification             performed before the effective date of this AD
                                                 (Required for Compliance): Before further               155955 has been embodied in production is              using the Airbus Service Bulletin A320–27–
                                                 flight, accomplish corrective actions in                considered compliant with paragraphs                   1164, Revision 10, dated March 2017, 2014;
                                                 accordance with the procedures specified in             (m)(1), (m)(2), and (n) of this AD, provided           Revision 11, dated December 15, 2014; or
                                                 paragraph (v)(2) of this AD.                            that it is determined that no THSA with a              Revision 12, dated March 23, 2016.
                                                    (2) Where Airbus AOT A27N010–17,                                                                               (2) This paragraph provides credit for
                                                                                                         part number listed in Figure 1 to paragraphs
                                                                                                                                                                actions required by paragraph (k) of this AD,
                                                 Revision 01, dated October 17, 2017,                    (n), (p), and (q) of this AD is installed on that      if those actions were performed before the
                                                 specifies to contact Airbus for appropriate             airplane, and that the ELSD remains                    effective date of this AD using Airbus AOT
                                                 action: Before further flight, accomplish               activated. A review of airplane maintenance            A27N010–17, dated March 27, 2017.
                                                 corrective actions in accordance with the               records is acceptable to make this                        (3) This paragraph provides credit for
                                                 procedures specified in paragraph (v)(2) of             determination, provided those records can be           actions required by paragraph (m)(2) of this
                                                 this AD.                                                                                                       AD, if those actions were performed before
                                                                                                         relied upon for that purpose.
                                                 (p) Parts Installation                                                                                         the effective date of this AD using Airbus
                                                                                                         (r) Airplanes Not Affected by the                      Service Bulletin A320–27–1246, dated March
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                                                   Do not install on any airplane a THSA with            Requirements of Paragraph (k) of This AD               20, 2015.
                                                 a part number listed in Figure 1 to
                                                 paragraphs (n), (p), and (q) of this AD and do            The inspection required by paragraph (k) of          (t) No Terminating Action for Repetitive
                                                 not deactivate the ELSD at the times                    this AD is not required for airplanes on               Inspections in This AD
                                                 specified in paragraph (p)(1) or (p)(2) of this         which the THSA has been installed as                      Accomplishment on an airplane of the one-
                                                 AD, as applicable.                                      specified in the instructions of Airbus A320           time inspection and replacement, as
                                                   (1) Group 1 airplanes (see paragraph (l) of           Airplane Maintenance Manual (AMM) 27–                  applicable, specified in paragraph (k) of this
                                                 this AD): After modification of the airplane            44–51–400–001, dated May 2017, or                      AD and the modifications specified in
                                                                                                                                                                                                                   EP16AP18.025</GPH>




                                                 as required by paragraph (m)(1) of this AD.             subsequent.                                            paragraphs (m)(1), (m)(2), and (n) of this AD,



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                                                 16256                    Federal Register / Vol. 83, No. 73 / Monday, April 16, 2018 / Proposed Rules

                                                 as applicable, do not constitute terminating            that are not identified as RC may be deviated          DEPARTMENT OF TRANSPORTATION
                                                 action for the repetitive inspections required          from using accepted methods in accordance
                                                 by paragraphs (g) and (h) of this AD for that           with the operator’s maintenance or                     Federal Aviation Administration
                                                 airplane.                                               inspection program without obtaining
                                                 (u) Terminating Action for Other FAA ADs                approval of an AMOC, provided the                      14 CFR Part 71
                                                   Accomplishing the initial actions required            procedures and tests identified as RC can be
                                                                                                         done and the airplane can be put back in an            [Docket No. FAA–2018–0044; Airspace
                                                 by paragraphs (g) and (h) of this AD, and
                                                                                                         airworthy condition. Any substitutions or              Docket No. 17–ANM–35]
                                                 accomplishing the applicable actions
                                                 required by paragraphs (i) and (j) of this AD,          changes to procedures or tests identified as
                                                                                                                                                                RIN. 2120–AA66
                                                 terminates all requirements of AD 2007–06–              RC require approval of an AMOC.
                                                 02 and AD 2008–09–16.                                                                                          Proposed Establishment of Class E
                                                                                                         (w) Special Flight Permits
                                                 (v) Other FAA AD Provisions                               Special flight permits, as described in
                                                                                                                                                                Airspace; Creswell, OR
                                                    The following provisions also apply to this          Section 21.197 and Section 21.199 of the               AGENCY: Federal Aviation
                                                 AD:                                                     Federal Aviation Regulations (14 CFR 21.197
                                                    (1) Alternative Methods of Compliance
                                                                                                                                                                Administration (FAA), DOT.
                                                                                                         and 21.199), are not allowed.
                                                 (AMOCs): The Manager, International                                                                            ACTION: Notice of proposed rulemaking
                                                 Section, Transport Standards Branch, FAA,               (x) Related Information                                (NPRM).
                                                 has the authority to approve AMOCs for this                (1) Refer to Mandatory Continuing
                                                 AD, if requested using the procedures found                                                                    SUMMARY:   This action proposes to
                                                                                                         Airworthiness Information (MCAI) EASA
                                                 in 14 CFR 39.19. In accordance with 14 CFR                                                                     establish Class E airspace extending
                                                 39.19, send your request to your principal              Airworthiness Directive 2017–0237, dated
                                                                                                                                                                upward from 700 feet above the surface,
                                                 inspector or local Flight Standards District            December 4, 2017, for related information.
                                                                                                                                                                at Hobby Field, Creswell, OR, to
                                                 Office, as appropriate. If sending information          This MCAI may be found in the AD docket
                                                                                                                                                                accommodate new area navigation
                                                 directly to the International Section, send it          on the internet at http://www.regulations.gov
                                                                                                                                                                (RNAV) procedures at the airport. This
                                                 to the attention of the person identified in            by searching for and locating Docket No.
                                                 paragraph (x)(2) of this AD. Information may            FAA–2018–0298.
                                                                                                                                                                action would ensure the safety and
                                                 be emailed to: 9-ANM-116-AMOC-                             (2) For more information about this AD,
                                                                                                                                                                management of instrument flight rules
                                                 REQUESTS@faa.gov. Before using any                      contact Sanjay Ralhan, Aerospace Engineer,
                                                                                                                                                                (IFR) operations within the National
                                                 approved AMOC, notify your appropriate                  International Section, Transport Standards             Airspace System.
                                                 principal inspector, or lacking a principal             Branch, FAA, 2200 South 216th Street, Des              DATES: Comments must be received on
                                                 inspector, the manager of the local flight                                                                     or before May 31, 2018.
                                                                                                         Moines, WA 98198; phone and fax: 206–231–
                                                 standards district office/certificate holding
                                                 district office.                                        3223.                                                  ADDRESSES: Send comments on this
                                                    (2) Contacting the Manufacturer: For any                (3) For Airbus service information                  proposal to the U.S. Department of
                                                 requirement in this AD to obtain corrective             identified in this AD, contact Airbus,                 Transportation, Docket Operations, 1200
                                                 actions from a manufacturer, the action must            Airworthiness Office—EIAS, 1 Rond Point                New Jersey Avenue SE, West Building
                                                 be accomplished using a method approved                 Maurice Bellonte, 31707 Blagnac Cedex,                 Ground Floor, Room W12–140,
                                                 by the Manager, International Section,                  France; telephone +33 5 61 93 36 96; fax +33           Washington, DC 20590; telephone: (800)
                                                 Transport Standards Branch, FAA; or the                 5 61 93 44 51; email account.airworth-eas@             647–5527 or (202) 366–9826. You must
                                                 European Aviation Safety Agency (EASA); or              airbus.com; internet http://www.airbus.com.            identify FAA Docket No. FAA–2018–
                                                 Airbus’s EASA DOA. If approved by the                      (4) For UTAS service information
                                                 DOA, the approval must include the DOA-
                                                                                                                                                                0044; Airspace Docket No. 17–ANM–35,
                                                                                                         identified in this AD, contact United                  at the beginning of your comments. You
                                                 authorized signature.
                                                                                                         Technologies Corporation Aerospace Systems             may also submit comments through the
                                                    (3) Paperwork Reduction Act Burden
                                                 Statement: A federal agency may not conduct             (UTAS): Goodrich Corporation, Actuation                internet at http://www.regulations.gov.
                                                 or sponsor, and a person is not required to             Systems, Stafford Road, Fordhouses,                       FAA Order 7400.11B, Airspace
                                                 respond to, nor shall a person be subject to            Wolverhampton WV10 7EH, England; phone:                Designations and Reporting Points, and
                                                 a penalty for failure to comply with a                  +44 (0) 1902 624938; fax: +44 (0) 1902                 subsequent amendments can be viewed
                                                 collection of information subject to the                788100; email: techpubs.wolverhampton@                 online at http://www.faa.gov/air_traffic/
                                                 requirements of the Paperwork Reduction                 goodrich.com; internet: http://                        publications/. For further information,
                                                 Act unless that collection of information               www.goodrich.com/TechPubs.
                                                 displays a current valid OMB Control
                                                                                                                                                                you can contact the Airspace Policy
                                                                                                            (5) You may view this service information
                                                 Number. The OMB Control Number for this                                                                        Group, Federal Aviation
                                                                                                         at the FAA, Transport Standards Branch,
                                                 information collection is 2120–0056. Public                                                                    Administration, 800 Independence
                                                                                                         2200 South 216th Street, Des Moines, WA.
                                                 reporting for this collection of information is                                                                Avenue SW, Washington, DC 20591;
                                                                                                         For information on the availability of this
                                                 estimated to be approximately 1 hour per                                                                       telephone: (202) 267–8783. The Order is
                                                                                                         material at the FAA, call 206–231–3195.
                                                 response, including the time for reviewing                                                                     also available for inspection at the
                                                 instructions, completing and reviewing the                Issued in Des Moines, Washington, on                 National Archives and Records
                                                 collection of information. All responses to             March 30, 2018.                                        Administration (NARA). For
                                                 this collection of information are mandatory.                                                                  information on the availability of FAA
                                                                                                         Chris Spangenberg,
                                                 Comments concerning the accuracy of this
                                                 burden and suggestions for reducing the                 Acting Director, System Oversight Division,            Order 7400.11B at NARA, call (202)
                                                 burden should be directed to the FAA at: 800            Aircraft Certification Service.                        741–6030, or go to https://
                                                 Independence Ave. SW, Washington, DC                    [FR Doc. 2018–07656 Filed 4–13–18; 8:45 am]            www.archives.gov/federal-register/cfr/
                                                 20591, Attn: Information Collection                     BILLING CODE 4910–13–P
                                                                                                                                                                ibr-locations.html.
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                                                 Clearance Officer, AES–200.                                                                                       FAA Order 7400.11, Airspace
                                                    (4) Required for Compliance (RC): Except                                                                    Designations and Reporting Points, is
                                                 as specified in paragraph in (o)(1) of this AD,                                                                published yearly and effective on
                                                 if any service information contains                                                                            September 15.
                                                 procedures or tests that are identified as RC,
                                                 those procedures and tests must be done to                                                                     FOR FURTHER INFORMATION CONTACT:
                                                 comply with this AD; any procedures or tests                                                                   Richard Farnsworth, Federal Aviation
                                                 that are not identified as RC are                                                                              Administration, Operations Support
                                                 recommended. Those procedures and tests                                                                        Group, Western Service Center, 2200 S


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Document Created: 2018-04-14 02:19:33
Document Modified: 2018-04-14 02:19:33
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 May 31, 2018.
ContactSanjay Ralhan, Aerospace Engineer, International Section, Transport Standards Branch, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone and fax: 206-231-3223.
FR Citation83 FR 16251 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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