81_FR_29289 81 FR 29198 - Airworthiness Directives; Airbus Airplanes

81 FR 29198 - Airworthiness Directives; Airbus Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 91 (May 11, 2016)

Page Range29198-29202
FR Document2016-10914

We propose to supersede Airworthiness Directive (AD) 2015-05- 02, for certain Airbus Model A318, A319, A320, and A321 series airplanes. AD 2015-05-02 requires revising the maintenance or inspection program to incorporate new, more restrictive airworthiness limitations. Since we issued AD 2015-05-02, an evaluation by the design approval holder (DAH) indicates that principal structural elements and certain life limited parts are subject to widespread fatigue damage (WFD). This proposed AD would require revising the maintenance or inspection program, as applicable, to incorporate new or revised structural inspection requirements. We are proposing this AD to prevent fatigue cracking, accidental damage, or corrosion in principal structural elements, and WFD, which could result in reduced structural integrity of the airplane.

Federal Register, Volume 81 Issue 91 (Wednesday, May 11, 2016)
[Federal Register Volume 81, Number 91 (Wednesday, May 11, 2016)]
[Proposed Rules]
[Pages 29198-29202]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-10914]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-6429; Directorate Identifier 2015-NM-117-AD]
RIN 2120-AA64


Airworthiness Directives; Airbus Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: We propose to supersede Airworthiness Directive (AD) 2015-05-
02, for certain Airbus Model A318, A319, A320, and A321 series 
airplanes. AD 2015-05-02 requires revising the maintenance or 
inspection program to incorporate new, more restrictive airworthiness 
limitations. Since we issued AD 2015-05-02, an evaluation by the design 
approval holder (DAH) indicates that principal structural elements and 
certain life limited parts are subject to widespread fatigue damage 
(WFD). This proposed AD would require revising the maintenance or 
inspection program, as applicable, to incorporate new or revised 
structural inspection requirements. We are proposing this AD to prevent 
fatigue cracking, accidental damage, or corrosion in principal 
structural elements, and WFD, which could result in reduced structural 
integrity of the airplane.

DATES: We must receive comments on this proposed AD by June 27, 2016.

ADDRESSES: You may send comments 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: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday 
through Friday, except Federal holidays.
    For 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. You may view this referenced service information at the 
FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. 
For information on the availability of this material at the FAA, call 
425-227-1221.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2016-
6429; 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 proposed AD, 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 Branch, ANM-116, Transport Airplane Directorate, FAA, 
1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1405; 
fax 425-227-1149.

SUPPLEMENTARY INFORMATION: 

[[Page 29199]]

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2016-6429; 
Directorate Identifier 2015-NM-117-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD 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 proposed AD.

Discussion

    Structural fatigue damage is progressive. It begins as minute 
cracks, and those cracks grow under the action of repeated stresses. 
This can happen because of normal operational conditions and design 
attributes, or because of isolated situations or incidents such as 
material defects, poor fabrication quality, or corrosion pits, dings, 
or scratches. Fatigue damage can occur locally, in small areas or 
structural design details, or globally. Global fatigue damage is 
general degradation of large areas of structure with similar structural 
details and stress levels. Multiple-site damage is global damage that 
occurs in a large structural element such as a single rivet line of a 
lap splice joining two large skin panels. Global damage can also occur 
in multiple elements such as adjacent frames or stringers. Multiple-
site-damage and multiple-element-damage cracks are typically too small 
initially to be reliably detected with normal inspection methods. 
Without intervention, these cracks will grow, and eventually compromise 
the structural integrity of the airplane, in a condition known as 
widespread fatigue damage (WFD). As an airplane ages, WFD will likely 
occur, and will certainly occur if the airplane is operated long enough 
without any intervention.
    The FAA's WFD final rule (75 FR 69746, November 15, 2010) became 
effective on January 14, 2011. The WFD rule requires certain actions to 
prevent structural failure due to WFD throughout the operational life 
of certain existing transport category airplanes and all of these 
airplanes that will be certificated in the future. For existing and 
future airplanes subject to the WFD rule, the rule requires that DAHs 
establish a limit of validity (LOV) of the engineering data that 
support the structural maintenance program. Operators affected by the 
WFD rule may not fly an airplane beyond its LOV, unless an extended LOV 
is approved.
    The WFD rule (75 FR 69746, November 15, 2010) does not require 
identifying and developing maintenance actions if the DAHs can show 
that such actions are not necessary to prevent WFD before the airplane 
reaches the LOV. Many LOVs, however, do depend on accomplishment of 
future maintenance actions. As stated in the WFD rule, any maintenance 
actions necessary to reach the LOV will be mandated by airworthiness 
directives through separate rulemaking actions.
    In the context of WFD, this action is necessary to enable DAHs to 
propose LOVs that allow operators the longest operational lives for 
their airplanes, and still ensure that WFD will not occur. This 
approach allows for an implementation strategy that provides 
flexibility to DAHs in determining the timing of service information 
development (with FAA approval), while providing operators with 
certainty regarding the LOV applicable to their airplanes.
    On February 25, 2015, we issued AD 2015-05-02, Amendment 39-18112 
(80 FR 15152, March 23, 2015) (``AD 2015-05-02'') to supersede AD 2014-
23-15, Amendment 39-18031 (80 FR 3871, January 26, 2015). AD 2015-05-02 
requires revising the maintenance or inspection program, as applicable, 
to incorporate new, more restrictive airworthiness limitations on all 
Airbus Model A318, A319, A320, and A321 series airplanes.
    Since we issued AD 2015-05-02, an evaluation by the DAH indicates 
that principal structural elements and certain life limited parts are 
subject to widespread fatigue damage WFD. This proposed AD would 
require revising the maintenance or inspection program, as applicable, 
to incorporate new or revised structural inspection requirements.
    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Union, has issued EASA 
Airworthiness Directive 2015-0083, dated May 12, 2015 (referred to 
after this as the Mandatory Continuing Airworthiness Information, or 
``the MCAI''), to correct an unsafe condition.
    The MCAI states:

    The airworthiness limitations for Airbus A320 family aeroplanes 
are currently included in Airbus A318/A319/A320/A321 Airworthiness 
Limitations Section (hereafter referred to as `ALS') documents. The 
Damage Tolerant airworthiness limitation items are published in ALS 
Part 2, approved by EASA.
    The instructions contained in the ALS Part 2 have been 
identified as mandatory actions for continued airworthiness. Failure 
to comply with these instructions could result in an unsafe 
condition.
    Previously, EASA issued AD 2013-0147 (http://ad.easa.europa.eu/blob/easa_ad_2013_0147_superseded.pdf/AD_2013-0147_1) [which 
corresponds to FAA AD 2014-23-15, Amendment 39-18031 (80 FR 3871, 
January 26, 2015) to require accomplishment of all maintenance tasks 
as described in ALS Part 2 at Revision 02. The new ALS Part 2 
Revision 03 [Issue October 27, 2014] includes new and/or more 
restrictive items and was approved on 27 October 2014.
    For the reason described above, this [EASA] AD retains the 
requirements of EASA AD 2013-0147, which is superseded, and requires 
accomplishment of all maintenance tasks as described in ALS Part 2 
at Revision 03.

    The required action is revising the maintenance or inspection 
program to incorporate new or revised structural inspection 
requirements. The unsafe condition is fatigue cracking, accidental 
damage, or corrosion in principal structural elements, and WFD, which 
could result in reduced structural integrity of the airplane. You may 
examine the MCAI in the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2016-
6429.

Other Relevant Rulemaking

    We have issued NPRM Docket FAA-2015-6539, Directorate Identifier 
2015-NM-036-AD (80 FR 74723, November 30, 2015), for all Airbus Model 
A318-111 and -112 airplanes; Model A319-111, -112, -113, -114, and -115 
airplanes; Model A320-211, -212, and -214 airplanes; and Model A321-
111, -112, -211, -212, and -213 airplanes. That NPRM proposes to 
require repetitive inspections that reduce the compliance time for Task 
712111-01, Detailed Inspection of Forward Engine Mount Installation. 
Therefore, Task 712111-01 is not included in this proposed AD.

Related Service Information Under 1 CFR Part 51

    Airbus has issued Part 2, Damage Tolerant Airworthiness Limitation 
Items (DT-ALI), Revision 04, dated December 18, 2015, of the A318/A319/
A320/A321 Airworthiness Limitation Section (ALS). The service 
information describes DT ALIs associated with WFD.
    Airbus has also issued Part 2, Damage Tolerant Airworthiness 
Limitation Items

[[Page 29200]]

(DT-ALI), Variation 4.2, dated January 15, 2016, of the A318/A319/A320/
A321 Airworthiness Limitation Section (ALS). The service information 
describes DT ALIs associated with WFD.
    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.
    This proposed AD requires revisions to certain operator maintenance 
documents to include new actions (e.g., inspections). Compliance with 
these actions is required by 14 CFR 91.403(c). For airplanes that have 
been previously modified, altered, or repaired in the areas addressed 
by this proposed AD, the operator might not be able to accomplish the 
actions described in the revisions. In this situation, to comply with 
14 CFR 91.403(c), the operator must request approval for an alternative 
method of compliance (AMOC) in accordance with the provisions of 
paragraph (k)(1) of this proposed AD. The request should include a 
description of changes to the required actions that will ensure the 
continued damage tolerance of the affected structure.

Differences Between This Proposed AD and the MCAI or Service 
Information

    This proposed AD differs from the MCAI in that it specifies 
revising the maintenance or inspection program, as applicable, to 
incorporate the ALIs specified in Airbus A318/A319/A320/A321 ALS Part 
2, Damage Tolerant Airworthiness Limitation Items (DT-ALI), Revision 
04, dated December 18, 2015; and Airbus A318/A319/A320/A321 ALS Part 2, 
Damage Tolerant Airworthiness Limitation Items (DT-ALI), Variation 4.2, 
dated January 15, 2016. The MCAI specifies incorporating the ALIs 
specified in Airbus A318/A319/A320/A321 ALS Safe Life Airworthiness 
Limitation Section (ALS), Part 2, Damage Tolerant Airworthiness 
Limitation Items (DT-ALI), Revision 03, Issue October 27, 2014. We have 
coordinated this change with EASA.
    EASA has issued EASA Proposed Airworthiness Directive (PAD) 16-029, 
dated February 24, 2016, which specifies incorporating the ALI's in 
Airbus A318/A319/A320/A321 ALS Part 2, Damage Tolerant Airworthiness 
Limitation Items (DT-ALI), Revision 04, dated December 18, 2015; and 
Airbus A318/A319/A320/A321 ALS Part 2, Damage Tolerant Airworthiness 
Limitation Items (DT-ALI), Variation 4.2, dated January 15, 2016.
    The MCAI specifies that if there are findings from the ALS 
inspection tasks, corrective actions must be accomplished in accordance 
with Airbus maintenance documentation. However, this proposed AD does 
not include that requirement. Operators of U.S.-registered airplanes 
are required by general airworthiness and operational regulations to 
perform maintenance using methods that are acceptable to the FAA. We 
consider those methods to be adequate to address any corrective actions 
necessitated by the findings of ALS inspections required by this 
proposed AD.

Airworthiness Limitations Based on Type Design

    The FAA recently became aware of an issue related to the 
applicability of ADs that require incorporation of an ALS revision into 
an operator's maintenance or inspection program.
    Typically, when these types of ADs are issued by civil aviation 
authorities of other countries, they apply to all airplanes covered 
under an identified type certificate (TC). The corresponding FAA AD 
typically retains applicability to all of those airplanes. In addition, 
U.S. operators must operate their airplanes in an airworthy condition, 
in accordance with 14 CFR 91.7(a). Included in this obligation is the 
requirement to perform any maintenance or inspections specified in the 
ALS, and in accordance with the ALS as specified in 14 CFR 43.16 and 
91.403(c), unless an alternative has been approved by the FAA.
    When a type certificate is issued for a type design, the specific 
ALS, including revisions, is a part of that type design, as specified 
in 14 CFR 21.31(c). The sum effect of these operational and maintenance 
requirements is an obligation to comply with the ALS defined in the 
type design referenced in the manufacturer's conformity statement. This 
obligation may introduce a conflict with an AD that requires a specific 
ALS revision if new airplanes are delivered with a later revision as 
part of their type design.
    To address this conflict, the FAA has approved AMOCs that allow 
operators to incorporate the most recent ALS revision into their 
maintenance/inspection programs, in lieu of the ALS revision required 
by the AD. This eliminates the conflict and enables the operator to 
comply with both the AD and the type design.
    However, compliance with AMOCs is normally optional, and we 
recently became aware that some operators choose to retain the AD-
mandated ALS revision in their fleet-wide maintenance/inspection 
programs, including those for new airplanes delivered with later ALS 
revisions, to help standardize the maintenance of the fleet. To ensure 
that operators comply with the applicable ALS revision for newly 
delivered airplanes containing a later revision than that specified in 
an AD, we plan to limit the applicability of ADs that mandate ALS 
revisions to those airplanes that are subject to an earlier revision of 
the ALS, either as part of the type design or as mandated by an earlier 
AD.
    This proposed AD therefore applies to the airplanes identified in 
paragraph (c) of this proposed AD with an original certificate of 
airworthiness or original export certificate of airworthiness that was 
issued on or before the date of approval of the ALS revision identified 
in this proposed AD. Operators of airplanes with an original 
certificate of airworthiness or original export certificate of 
airworthiness issued after that date must comply with the airworthiness 
limitations specified as part of the approved type design and 
referenced on the type certificate data sheet.

Record of Ex Parte Communication

    In preparation of AD actions, it is the practice of the FAA to 
obtain technical information and information on the operational and 
economic impact from design approval holders and aircraft operators. We 
discussed certain issues related to this NPRM in a recent meeting with 
Airlines for America (A4A). Shortly after this NPRM is published, we 
will post a summary of this meeting in the rulemaking docket. For 
information on locating the docket, see ``Examining the AD Docket.''

Costs of Compliance

    We estimate that this proposed AD affects 959 airplanes of U.S. 
registry.
    The actions required by AD 2015-05-02, and retained in this 
proposed AD take about 2 work-hours per product, at an average labor 
rate of $85 per work-hour. Based on these figures, the estimated cost 
of the actions that are

[[Page 29201]]

required by AD 2015-05-02 is $170 per product.
    We also estimate that it would take about 2 work-hours per product 
to comply with the basic requirements of this proposed AD. The average 
labor rate is $85 per work-hour. Based on these figures, we estimate 
the cost of this proposed AD on U.S. operators to be $163,030, or $170 
per product.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. ``Subtitle VII: Aviation 
Programs,'' describes in more detail the scope of the Agency's 
authority.
    We are issuing this rulemaking under the authority described in 
``Subtitle VII, Part A, Subpart III, Section 44701: General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

Regulatory Findings

    We determined that this 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 removing Airworthiness Directive (AD) 
2015-05-02, Amendment 39-18112 (80 FR 15152, March 23, 2015), and 
adding the following new AD:

Airbus: Docket No. FAA-2016-6429; Directorate Identifier 2015-NM-
117-AD.

(a) Comments Due Date

    We must receive comments by June 27, 2016.

(b) Affected ADs

    This AD replaces AD 2015-05-02, Amendment 39-18112 (80 FR 15152, 
March 23, 2015) (``AD 2015-05-02'').

(c) Applicability

    This AD applies to the Airbus airplanes identified in paragraphs 
(c)(1) through (c)(4) of this AD, certificated in any category, with 
an original certificate of airworthiness or original export 
certificate of airworthiness issued on or before January 15, 2016.
    (1) Model A318-111, -112, -121, and -122 airplanes.
    (2) Model A319-111, -112, -113, -114, -115, -131, -132, and -133 
airplanes.
    (3) Model A320-211, -212, -214, -231, -232, and -233 airplanes.
    (4) Model A321-111, -112, -131, -211, -212, -213, -231, and -232 
airplanes.

(d) Subject

    Air Transport Association (ATA) of America Code 05, Periodic 
Inspections.

(e) Reason

    This AD was prompted by an evaluation by the design approval 
holder (DAH) which indicates that principal structural elements and 
certain life limited parts are subject to widespread fatigue damage 
(WFD). We are issuing this AD to prevent fatigue cracking, 
accidental damage, or corrosion in principal structural elements, 
and WFD, which could result in reduced structural integrity of the 
airplane.

(f) Compliance

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

(g) Retained Maintenance or Inspection Program Revision, With No 
Changes

    This paragraph restates the requirements of paragraph (n) of AD 
2015-05-02, with no changes. Within 30 days after March 2, 2015 (the 
effective date of AD 2014-23-15, Amendment 39-18031 (80 FR 3871, 
January 26, 2015) (``AD 2014-23-15'')), revise the maintenance or 
inspection program, as applicable, to incorporate the Airworthiness 
Limitation Items (ALIs) specified in paragraphs (g)(1) and (g)(2) of 
this AD. The initial compliance time for accomplishing the actions 
is at the applicable time identified in the ALIs specified in 
paragraphs (g)(1) and (g)(2) of this AD; or within 4 months after 
March 2, 2015 (the effective date of AD 2014-23-15); whichever 
occurs later.
    (1) Airbus A318/A319/A320/A321 ALS Part 1--Safe Life 
Airworthiness Limitation Items, Revision 02, dated May 13, 2011.
    (2) Airbus A318/A319/A320/A321 ALS Part 2--Damage-Tolerant 
Airworthiness Limitation Items (DT ALI), Revision 02, dated May 28, 
2013.

(h) Retained Limitation: No Alternative Actions, Intervals, and/or 
Critical Design Configuration Control Limitations (CDCCLs), With 
Exception

    This paragraph restates the requirements of paragraph (o) of AD 
2015-05-02, with an exception. Except as required by paragraph (i) 
of this AD, after accomplishing the revision required by paragraph 
(g) of this AD, no alternative actions (e.g., inspections), 
intervals, and/or CDCCLs may be used unless the actions, intervals, 
and/or CDCCLs are approved as an alternative method of compliance 
(AMOC) in accordance with the procedures specified in paragraph 
(k)(1) of this AD.

(i) New Requirement of This AD: Maintenance or Inspection Program 
Revision

    Within 60 days after the effective date of this AD, revise the 
maintenance or inspection program, as applicable, to incorporate the 
ALIs specified in Airbus A318/A319/A320/A321 ALS Part 2, Damage 
Tolerant Airworthiness Limitation Items (DT-ALI), Revision 04, dated 
December 18, 2015; and Airbus A318/A319/A320/A321 ALS Part 2, Damage 
Tolerant Airworthiness Limitation Items (DT-ALI), Variation 4.2, 
dated January 15, 2016. The initial compliance time for 
accomplishing the actions is at the applicable time identified in 
the ALIs specified in Airbus A318/A319/A320/A321 ALS Part 2, Damage 
Tolerant Airworthiness Limitation Items (DT-ALI), Revision 04, dated 
December 18, 2015; and Airbus A318/A319/A320/A321 ALS Part 2, Damage 
Tolerant Airworthiness Limitation Items (DT-ALI), Variation 4.2, 
dated January 15, 2016; without exceeding the inspection intervals 
in the ALIs specified in the service information identified in 
paragraph (g)(2) of this AD, except for the ALI tasks identified in 
paragraphs (i)(1) though (i)(4) of this AD. Accomplishing these 
actions terminates the requirements of paragraph (g)(2) of this AD.
    (1) Task 712111-01-1, ``Detailed Inspection of Forward Engine 
Mount Installation.''
    (2) Task 712111-01-2, ``Detailed Inspection of Forward Engine 
Mount Installation.''
    (3) Task 712111-01-3, ``Detailed Inspection of Forward Engine 
Mount Installation.''
    (4) Task 712111-01-4, ``Detailed Inspection of Forward Engine 
Mount Installation.''

[[Page 29202]]

(j) New No Alternative Actions and/or Intervals

    After accomplishing the revision required by paragraph (i) of 
this AD, no alternative actions (e.g., inspections) and/or intervals 
may be used unless the actions and/or intervals are approved as an 
AMOC in accordance with the procedures specified in paragraph (k)(1) 
of this AD.

(k) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
International Branch, ANM-116, Transport Airplane Directorate, FAA, 
has the authority to approve AMOCs for this AD, if requested using 
the procedures found in 14 CFR 39.19. In accordance with 14 CFR 
39.19, send your request to your principal inspector or local Flight 
Standards District Office, as appropriate. If sending information 
directly to the International Branch, send it to ATTN: Sanjay 
Ralhan, Aerospace Engineer, International Branch, ANM-116, Transport 
Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-
3356; telephone 425-227-1405; fax 425-227-1149. Information may be 
emailed to: [email protected].
    (i) 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. The AMOC approval letter must specifically 
reference this AD.
    (ii) AMOCs approved previously for AD 2015-05-02, are approved 
as AMOCs for the corresponding provisions of paragraphs (g) and (h) 
of this AD.
    (2) Contacting the Manufacturer: As of the effective date of 
this AD, for any requirement in this AD to obtain corrective actions 
from a manufacturer, the action must be accomplished using a method 
approved by the Manager, International Branch, ANM-116, Transport 
Airplane Directorate, FAA; or the European Aviation Safety Agency 
(EASA); or Airbus's EASA Design Organization Approval (DOA). If 
approved by the DOA, the approval must include the DOA-authorized 
signature.

(l) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) EASA Airworthiness Directive 2015-0083, dated May 12, 2015, 
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-2016-6429.
    (2) For 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. You may view this service information at the FAA, 
Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. 
For information on the availability of this material at the FAA, 
call 425-227-1221.

    Issued in Renton, Washington, on May 3, 2016.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-10914 Filed 5-10-16; 8:45 am]
 BILLING CODE 4910-13-P



                                                    29198                  Federal Register / Vol. 81, No. 91 / Wednesday, May 11, 2016 / Proposed Rules

                                                    (h) Retained Provision Regarding                          (4) AMOCs approved previously for AD                cracking, accidental damage, or
                                                    Alternative Actions, Intervals With Updated             2007–11–13 are not approved as AMOCs                  corrosion in principal structural
                                                    Information                                             with this AD.                                         elements, and WFD, which could result
                                                       This paragraph restates the requirements of          (l) Related Information                               in reduced structural integrity of the
                                                    paragraph (i) of AD 2007–11–13, with                                                                          airplane.
                                                    updated information. Except as required by                 (1) For more information about this AD,
                                                                                                            contact Eric Schrieber, Aerospace Engineer,
                                                    paragraph (i) of this AD: After the ALS has                                                                   DATES:  We must receive comments on
                                                    been revised as required by paragraph (g) of            Airframe Branch, ANM–120L, FAA, Los
                                                                                                            Angeles ACO, 3960 Paramount Boulevard,                this proposed AD by June 27, 2016.
                                                    this AD, no alternative actions (e.g.,
                                                    inspections), intervals, may be used unless             Lakewood, CA 90712–4137; phone: 562–627–              ADDRESSES:   You may send comments by
                                                    the actions, intervals, are approved as an              5348; fax: 562–627–5210; email:                       any of the following methods:
                                                                                                            eric.schrieber@faa.gov.
                                                    alternative method of compliance (AMOC) in
                                                                                                               (2) For service information identified in            • Federal eRulemaking Portal: Go to
                                                    accordance with the procedures specified in                                                                   http://www.regulations.gov. Follow the
                                                    paragraph (k) of this AD.                               this AD, contact Boeing Commercial
                                                                                                            Airplanes, Attention: Data & Services                 instructions for submitting comments.
                                                    (i) New Maintenance or Inspection Program               Management, 3855 Lakewood Boulevard, MC                 • Fax: 202–493–2251.
                                                    Revision                                                D800–0019, Long Beach, CA 90846–0001;
                                                                                                            telephone 206–544–5000, extension 2; fax                • Mail: U.S. Department of
                                                       Within 180 days after the effective date of
                                                    this AD: Revise the maintenance or                      206–766–5683; Internet https://                       Transportation, Docket Operations, M–
                                                    inspection program, as applicable, to                   www.myboeingfleet.com. You may view this              30, West Building Ground Floor, Room
                                                    incorporate the information specified in                service information at the FAA, Transport             W12–140, 1200 New Jersey Avenue SE.,
                                                    Boeing 717–200 ALI, Report MDC–96K9063,                 Airplane Directorate, 1601 Lind Avenue SW.,           Washington, DC 20590.
                                                    Revision 14, dated July 2015. The initial               Renton, WA. For information on the                      • Hand Delivery: U.S. Department of
                                                    compliance times for doing the actions                  availability of this material at the FAA, call
                                                                                                            425–227–1221.
                                                                                                                                                                  Transportation, Docket Operations, M–
                                                    specified in Boeing 717–200 ALI, Report
                                                    MDC–96K9063, Revision 14, dated July 2015,
                                                                                                                                                                  30, West Building Ground Floor, Room
                                                    are at the later of the times specified in                Issued in Renton, Washington, on April 28,          W12–140, 1200 New Jersey Avenue SE.,
                                                    paragraphs (i)(1) and (i)(2) of this AD.                2016.                                                 Washington, DC, between 9 a.m. and 5
                                                    Compliance with this paragraph terminates               Dionne Palermo,                                       p.m., Monday through Friday, except
                                                    the requirements of paragraph (g) of this AD.           Acting Manager, Transport Airplane                    Federal holidays.
                                                       (1) Within the applicable compliance times           Directorate, Aircraft Certification Service.            For service information identified in
                                                    specified in Boeing 717–200 ALI, Report
                                                                                                            [FR Doc. 2016–10740 Filed 5–10–16; 8:45 am]           this NPRM, contact Airbus,
                                                    MDC–96K9063, Revision 14, dated July 2015.
                                                       (2) Within 180 days from the effective date          BILLING CODE 4910–13–P                                Airworthiness Office—EIAS, 1 Rond
                                                    of this AD.                                                                                                   Point Maurice Bellonte, 31707 Blagnac
                                                                                                                                                                  Cedex, France; telephone +33 5 61 93 36
                                                    (j) No Alternative Actions or Intervals                 DEPARTMENT OF TRANSPORTATION                          96; fax +33 5 61 93 44 51; email
                                                       After the maintenance or inspection                                                                        account.airworth-eas@airbus.com;
                                                    program has been revised as required by                 Federal Aviation Administration                       Internet http://www.airbus.com. You
                                                    paragraph (i) of this AD, no alternative                                                                      may view this referenced service
                                                    actions (e.g., inspections) or intervals may be         14 CFR Part 39                                        information at the FAA, Transport
                                                    used unless the actions or intervals are
                                                    approved as an AMOC in accordance with                  [Docket No. FAA–2016–6429; Directorate                Airplane Directorate, 1601 Lind Avenue
                                                    the procedures specified in paragraph (k) of            Identifier 2015–NM–117–AD]                            SW., Renton, WA. For information on
                                                    this AD.                                                                                                      the availability of this material at the
                                                                                                            RIN 2120–AA64                                         FAA, call 425–227–1221.
                                                    (k) Alternative Methods of Compliance
                                                    (AMOCs)                                                 Airworthiness Directives; Airbus                      Examining the AD Docket
                                                       (1) The Manager, Los Angeles Aircraft                Airplanes
                                                                                                                                                                     You may examine the AD docket on
                                                    Certification Office (ACO), FAA, has the
                                                    authority to approve AMOCs for this AD, if
                                                                                                            AGENCY: Federal Aviation                              the Internet at http://
                                                    requested using the procedures found in 14              Administration (FAA), DOT.                            www.regulations.gov by searching for
                                                    CFR 39.19. In accordance with 14 CFR 39.19,             ACTION: Notice of proposed rulemaking                 and locating Docket No. FAA–2016–
                                                    send your request to your principal inspector           (NPRM).                                               6429; or in person at the Docket
                                                    or local Flight Standards District Office, as                                                                 Management Facility between 9 a.m.
                                                    appropriate. If sending information directly            SUMMARY:   We propose to supersede                    and 5 p.m., Monday through Friday,
                                                    to the manager of the ACO, send it to the               Airworthiness Directive (AD) 2015–05–                 except Federal holidays. The AD docket
                                                    attention of the person identified in                   02, for certain Airbus Model A318,                    contains this proposed AD, the
                                                    paragraph (l)(1) of this AD.                            A319, A320, and A321 series airplanes.                regulatory evaluation, any comments
                                                       (2) Before using any approved AMOC,
                                                                                                            AD 2015–05–02 requires revising the                   received, and other information. The
                                                    notify your appropriate principal inspector,
                                                    or lacking a principal inspector, the manager           maintenance or inspection program to                  street address for the Docket Operations
                                                    of the local flight standards district office/          incorporate new, more restrictive                     office (telephone 800–647–5527) is in
                                                    certificate holding district office.                    airworthiness limitations. Since we                   the ADDRESSES section. Comments will
                                                       (3) An AMOC that provides an acceptable              issued AD 2015–05–02, an evaluation                   be available in the AD docket shortly
                                                    level of safety may be used for any repair,             by the design approval holder (DAH)                   after receipt.
                                                    modification, or alteration required by this            indicates that principal structural
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                                                    AD if it is approved by the Boeing                                                                            FOR FURTHER INFORMATION CONTACT:
                                                                                                            elements and certain life limited parts
                                                    Commercial Airplanes Organization                       are subject to widespread fatigue                     Sanjay Ralhan, Aerospace Engineer,
                                                    Designation Authorization (ODA) that has
                                                                                                            damage (WFD). This proposed AD                        International Branch, ANM–116,
                                                    been authorized by the Manager, Los Angeles                                                                   Transport Airplane Directorate, FAA,
                                                    ACO, FAA, to make those findings. To be                 would require revising the maintenance
                                                                                                            or inspection program, as applicable, to              1601 Lind Avenue SW., Renton, WA
                                                    approved, the repair method, modification                                                                     98057–3356; telephone 425–227–1405;
                                                    deviation, or alteration deviation must meet            incorporate new or revised structural
                                                                                                            inspection requirements. We are                       fax 425–227–1149.
                                                    the certification basis of the airplane, and the
                                                    approval must specifically refer to this AD.            proposing this AD to prevent fatigue                  SUPPLEMENTARY INFORMATION:



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                                                                           Federal Register / Vol. 81, No. 91 / Wednesday, May 11, 2016 / Proposed Rules                                              29199

                                                    Comments Invited                                        existing and future airplanes subject to              included in Airbus A318/A319/A320/A321
                                                                                                            the WFD rule, the rule requires that                  Airworthiness Limitations Section (hereafter
                                                      We invite you to send any written                                                                           referred to as ‘ALS’) documents. The Damage
                                                    relevant data, views, or arguments about                DAHs establish a limit of validity (LOV)
                                                                                                                                                                  Tolerant airworthiness limitation items are
                                                    this proposed AD. Send your comments                    of the engineering data that support the              published in ALS Part 2, approved by EASA.
                                                    to an address listed under the                          structural maintenance program.                         The instructions contained in the ALS Part
                                                    ADDRESSES section. Include ‘‘Docket No.
                                                                                                            Operators affected by the WFD rule may                2 have been identified as mandatory actions
                                                    FAA–2016–6429; Directorate Identifier                   not fly an airplane beyond its LOV,                   for continued airworthiness. Failure to
                                                    2015–NM–117–AD’’ at the beginning of                    unless an extended LOV is approved.                   comply with these instructions could result
                                                                                                               The WFD rule (75 FR 69746,                         in an unsafe condition.
                                                    your comments. We specifically invite                                                                           Previously, EASA issued AD 2013–0147
                                                    comments on the overall regulatory,                     November 15, 2010) does not require
                                                                                                                                                                  (http://ad.easa.europa.eu/blob/easa_ad_
                                                    economic, environmental, and energy                     identifying and developing maintenance
                                                                                                                                                                  2013_0147_superseded.pdf/AD_2013-
                                                    aspects of this proposed AD. We will                    actions if the DAHs can show that such                0147_1) [which corresponds to FAA AD
                                                    consider all comments received by the                   actions are not necessary to prevent                  2014–23–15, Amendment 39–18031 (80 FR
                                                    closing date and may amend this                         WFD before the airplane reaches the                   3871, January 26, 2015) to require
                                                    proposed AD based on those comments.                    LOV. Many LOVs, however, do depend                    accomplishment of all maintenance tasks as
                                                                                                            on accomplishment of future                           described in ALS Part 2 at Revision 02. The
                                                      We will post all comments we                                                                                new ALS Part 2 Revision 03 [Issue October
                                                    receive, without change, to http://                     maintenance actions. As stated in the
                                                                                                            WFD rule, any maintenance actions                     27, 2014] includes new and/or more
                                                    www.regulations.gov, including any                                                                            restrictive items and was approved on 27
                                                    personal information you provide. We                    necessary to reach the LOV will be                    October 2014.
                                                    will also post a report summarizing each                mandated by airworthiness directives                    For the reason described above, this
                                                    substantive verbal contact we receive                   through separate rulemaking actions.                  [EASA] AD retains the requirements of EASA
                                                    about this proposed AD.                                    In the context of WFD, this action is              AD 2013–0147, which is superseded, and
                                                                                                            necessary to enable DAHs to propose                   requires accomplishment of all maintenance
                                                    Discussion                                              LOVs that allow operators the longest                 tasks as described in ALS Part 2 at Revision
                                                                                                            operational lives for their airplanes, and            03.
                                                       Structural fatigue damage is
                                                    progressive. It begins as minute cracks,                still ensure that WFD will not occur.                    The required action is revising the
                                                    and those cracks grow under the action                  This approach allows for an                           maintenance or inspection program to
                                                    of repeated stresses. This can happen                   implementation strategy that provides                 incorporate new or revised structural
                                                    because of normal operational                           flexibility to DAHs in determining the                inspection requirements. The unsafe
                                                    conditions and design attributes, or                    timing of service information                         condition is fatigue cracking, accidental
                                                    because of isolated situations or                       development (with FAA approval),                      damage, or corrosion in principal
                                                    incidents such as material defects, poor                while providing operators with certainty              structural elements, and WFD, which
                                                    fabrication quality, or corrosion pits,                 regarding the LOV applicable to their                 could result in reduced structural
                                                    dings, or scratches. Fatigue damage can                 airplanes.                                            integrity of the airplane. You may
                                                    occur locally, in small areas or                           On February 25, 2015, we issued AD                 examine the MCAI in the AD docket on
                                                    structural design details, or globally.                 2015–05–02, Amendment 39–18112 (80                    the Internet at http://
                                                    Global fatigue damage is general                        FR 15152, March 23, 2015) (‘‘AD 2015–                 www.regulations.gov by searching for
                                                    degradation of large areas of structure                 05–02’’) to supersede AD 2014–23–15,                  and locating Docket No. FAA–2016–
                                                    with similar structural details and stress              Amendment 39–18031 (80 FR 3871,                       6429.
                                                    levels. Multiple-site damage is global                  January 26, 2015). AD 2015–05–02                      Other Relevant Rulemaking
                                                    damage that occurs in a large structural                requires revising the maintenance or
                                                                                                            inspection program, as applicable, to                   We have issued NPRM Docket FAA–
                                                    element such as a single rivet line of a                                                                      2015–6539, Directorate Identifier 2015–
                                                    lap splice joining two large skin panels.               incorporate new, more restrictive
                                                                                                            airworthiness limitations on all Airbus               NM–036–AD (80 FR 74723, November
                                                    Global damage can also occur in                                                                               30, 2015), for all Airbus Model A318–
                                                    multiple elements such as adjacent                      Model A318, A319, A320, and A321
                                                                                                            series airplanes.                                     111 and –112 airplanes; Model A319–
                                                    frames or stringers. Multiple-site-                                                                           111, –112, –113, –114, and –115
                                                    damage and multiple-element-damage                         Since we issued AD 2015–05–02, an
                                                                                                            evaluation by the DAH indicates that                  airplanes; Model A320–211, –212, and
                                                    cracks are typically too small initially to                                                                   –214 airplanes; and Model A321–111,
                                                    be reliably detected with normal                        principal structural elements and
                                                                                                            certain life limited parts are subject to             –112, –211, –212, and –213 airplanes.
                                                    inspection methods. Without                                                                                   That NPRM proposes to require
                                                    intervention, these cracks will grow,                   widespread fatigue damage WFD. This
                                                                                                            proposed AD would require revising the                repetitive inspections that reduce the
                                                    and eventually compromise the                                                                                 compliance time for Task 712111–01,
                                                    structural integrity of the airplane, in a              maintenance or inspection program, as
                                                                                                                                                                  Detailed Inspection of Forward Engine
                                                    condition known as widespread fatigue                   applicable, to incorporate new or
                                                                                                                                                                  Mount Installation. Therefore, Task
                                                    damage (WFD). As an airplane ages,                      revised structural inspection
                                                                                                                                                                  712111–01 is not included in this
                                                    WFD will likely occur, and will                         requirements.
                                                                                                                                                                  proposed AD.
                                                    certainly occur if the airplane is                         The European Aviation Safety Agency
                                                    operated long enough without any                        (EASA), which is the Technical Agent                  Related Service Information Under 1
                                                    intervention.                                           for the Member States of the European                 CFR Part 51
                                                       The FAA’s WFD final rule (75 FR                      Union, has issued EASA Airworthiness                    Airbus has issued Part 2, Damage
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                                                    69746, November 15, 2010) became                        Directive 2015–0083, dated May 12,                    Tolerant Airworthiness Limitation Items
                                                    effective on January 14, 2011. The WFD                  2015 (referred to after this as the                   (DT–ALI), Revision 04, dated December
                                                    rule requires certain actions to prevent                Mandatory Continuing Airworthiness                    18, 2015, of the A318/A319/A320/A321
                                                    structural failure due to WFD                           Information, or ‘‘the MCAI’’), to correct             Airworthiness Limitation Section (ALS).
                                                    throughout the operational life of                      an unsafe condition.                                  The service information describes DT
                                                    certain existing transport category                        The MCAI states:                                   ALIs associated with WFD.
                                                    airplanes and all of these airplanes that                The airworthiness limitations for Airbus               Airbus has also issued Part 2, Damage
                                                    will be certificated in the future. For                 A320 family aeroplanes are currently                  Tolerant Airworthiness Limitation Items


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                                                    29200                  Federal Register / Vol. 81, No. 91 / Wednesday, May 11, 2016 / Proposed Rules

                                                    (DT–ALI), Variation 4.2, dated January                  Issue October 27, 2014. We have                          To address this conflict, the FAA has
                                                    15, 2016, of the A318/A319/A320/A321                    coordinated this change with EASA.                    approved AMOCs that allow operators
                                                    Airworthiness Limitation Section (ALS).                    EASA has issued EASA Proposed                      to incorporate the most recent ALS
                                                    The service information describes DT                    Airworthiness Directive (PAD) 16–029,                 revision into their maintenance/
                                                    ALIs associated with WFD.                               dated February 24, 2016, which                        inspection programs, in lieu of the ALS
                                                      This service information is reasonably                specifies incorporating the ALI’s in                  revision required by the AD. This
                                                    available because the interested parties                Airbus A318/A319/A320/A321 ALS                        eliminates the conflict and enables the
                                                    have access to it through their normal                  Part 2, Damage Tolerant Airworthiness                 operator to comply with both the AD
                                                    course of business or by the means                      Limitation Items (DT–ALI), Revision 04,               and the type design.
                                                    identified in the ADDRESSES section.                    dated December 18, 2015; and Airbus                      However, compliance with AMOCs is
                                                                                                            A318/A319/A320/A321 ALS Part 2,                       normally optional, and we recently
                                                    FAA’s Determination and Requirements
                                                                                                            Damage Tolerant Airworthiness                         became aware that some operators
                                                    of This Proposed AD
                                                                                                            Limitation Items (DT–ALI), Variation                  choose to retain the AD-mandated ALS
                                                       This product has been approved by                    4.2, dated January 15, 2016.                          revision in their fleet-wide
                                                    the aviation authority of another                                                                             maintenance/inspection programs,
                                                                                                               The MCAI specifies that if there are
                                                    country, and is approved for operation                                                                        including those for new airplanes
                                                                                                            findings from the ALS inspection tasks,
                                                    in the United States. Pursuant to our                                                                         delivered with later ALS revisions, to
                                                                                                            corrective actions must be accomplished
                                                    bilateral agreement with the State of                                                                         help standardize the maintenance of the
                                                                                                            in accordance with Airbus maintenance
                                                    Design Authority, we have been notified                                                                       fleet. To ensure that operators comply
                                                                                                            documentation. However, this proposed
                                                    of the unsafe condition described in the                                                                      with the applicable ALS revision for
                                                    MCAI and service information                            AD does not include that requirement.
                                                                                                            Operators of U.S.-registered airplanes                newly delivered airplanes containing a
                                                    referenced above. We are proposing this                                                                       later revision than that specified in an
                                                    AD because we evaluated all pertinent                   are required by general airworthiness
                                                                                                            and operational regulations to perform                AD, we plan to limit the applicability of
                                                    information and determined an unsafe                                                                          ADs that mandate ALS revisions to
                                                    condition exists and is likely to exist or              maintenance using methods that are
                                                                                                            acceptable to the FAA. We consider                    those airplanes that are subject to an
                                                    develop on other products of these same                                                                       earlier revision of the ALS, either as part
                                                    type designs.                                           those methods to be adequate to address
                                                                                                            any corrective actions necessitated by                of the type design or as mandated by an
                                                       This proposed AD requires revisions                                                                        earlier AD.
                                                    to certain operator maintenance                         the findings of ALS inspections required
                                                                                                            by this proposed AD.                                     This proposed AD therefore applies to
                                                    documents to include new actions (e.g.,                                                                       the airplanes identified in paragraph (c)
                                                    inspections). Compliance with these                     Airworthiness Limitations Based on                    of this proposed AD with an original
                                                    actions is required by 14 CFR 91.403(c).                Type Design                                           certificate of airworthiness or original
                                                    For airplanes that have been previously                                                                       export certificate of airworthiness that
                                                    modified, altered, or repaired in the                      The FAA recently became aware of an
                                                                                                            issue related to the applicability of ADs             was issued on or before the date of
                                                    areas addressed by this proposed AD,                                                                          approval of the ALS revision identified
                                                    the operator might not be able to                       that require incorporation of an ALS
                                                                                                            revision into an operator’s maintenance               in this proposed AD. Operators of
                                                    accomplish the actions described in the                                                                       airplanes with an original certificate of
                                                    revisions. In this situation, to comply                 or inspection program.
                                                                                                                                                                  airworthiness or original export
                                                    with 14 CFR 91.403(c), the operator                        Typically, when these types of ADs
                                                                                                                                                                  certificate of airworthiness issued after
                                                    must request approval for an alternative                are issued by civil aviation authorities
                                                                                                                                                                  that date must comply with the
                                                    method of compliance (AMOC) in                          of other countries, they apply to all
                                                                                                                                                                  airworthiness limitations specified as
                                                    accordance with the provisions of                       airplanes covered under an identified
                                                                                                                                                                  part of the approved type design and
                                                    paragraph (k)(1) of this proposed AD.                   type certificate (TC). The corresponding
                                                                                                                                                                  referenced on the type certificate data
                                                    The request should include a                            FAA AD typically retains applicability
                                                                                                                                                                  sheet.
                                                    description of changes to the required                  to all of those airplanes. In addition,
                                                    actions that will ensure the continued                  U.S. operators must operate their                     Record of Ex Parte Communication
                                                    damage tolerance of the affected                        airplanes in an airworthy condition, in                  In preparation of AD actions, it is the
                                                    structure.                                              accordance with 14 CFR 91.7(a).                       practice of the FAA to obtain technical
                                                                                                            Included in this obligation is the                    information and information on the
                                                    Differences Between This Proposed AD                    requirement to perform any
                                                    and the MCAI or Service Information                                                                           operational and economic impact from
                                                                                                            maintenance or inspections specified in               design approval holders and aircraft
                                                      This proposed AD differs from the                     the ALS, and in accordance with the                   operators. We discussed certain issues
                                                    MCAI in that it specifies revising the                  ALS as specified in 14 CFR 43.16 and                  related to this NPRM in a recent meeting
                                                    maintenance or inspection program, as                   91.403(c), unless an alternative has been             with Airlines for America (A4A).
                                                    applicable, to incorporate the ALIs                     approved by the FAA.                                  Shortly after this NPRM is published,
                                                    specified in Airbus A318/A319/A320/                        When a type certificate is issued for              we will post a summary of this meeting
                                                    A321 ALS Part 2, Damage Tolerant                        a type design, the specific ALS,                      in the rulemaking docket. For
                                                    Airworthiness Limitation Items (DT–                     including revisions, is a part of that type           information on locating the docket, see
                                                    ALI), Revision 04, dated December 18,                   design, as specified in 14 CFR 21.31(c).              ‘‘Examining the AD Docket.’’
                                                    2015; and Airbus A318/A319/A320/                        The sum effect of these operational and
                                                    A321 ALS Part 2, Damage Tolerant                        maintenance requirements is an                        Costs of Compliance
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                                                    Airworthiness Limitation Items (DT–                     obligation to comply with the ALS                        We estimate that this proposed AD
                                                    ALI), Variation 4.2, dated January 15,                  defined in the type design referenced in              affects 959 airplanes of U.S. registry.
                                                    2016. The MCAI specifies incorporating                  the manufacturer’s conformity                            The actions required by AD 2015–05–
                                                    the ALIs specified in Airbus A318/                      statement. This obligation may                        02, and retained in this proposed AD
                                                    A319/A320/A321 ALS Safe Life                            introduce a conflict with an AD that                  take about 2 work-hours per product, at
                                                    Airworthiness Limitation Section (ALS),                 requires a specific ALS revision if new               an average labor rate of $85 per work-
                                                    Part 2, Damage Tolerant Airworthiness                   airplanes are delivered with a later                  hour. Based on these figures, the
                                                    Limitation Items (DT–ALI), Revision 03,                 revision as part of their type design.                estimated cost of the actions that are


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                                                                           Federal Register / Vol. 81, No. 91 / Wednesday, May 11, 2016 / Proposed Rules                                                29201

                                                    required by AD 2015–05–02 is $170 per                   the FAA proposes to amend 14 CFR part                 Limitation Items (ALIs) specified in
                                                    product.                                                39 as follows:                                        paragraphs (g)(1) and (g)(2) of this AD. The
                                                      We also estimate that it would take                                                                         initial compliance time for accomplishing the
                                                    about 2 work-hours per product to                       PART 39—AIRWORTHINESS                                 actions is at the applicable time identified in
                                                    comply with the basic requirements of                   DIRECTIVES                                            the ALIs specified in paragraphs (g)(1) and
                                                    this proposed AD. The average labor                                                                           (g)(2) of this AD; or within 4 months after
                                                                                                            ■ 1. The authority citation for part 39               March 2, 2015 (the effective date of AD 2014–
                                                    rate is $85 per work-hour. Based on
                                                                                                            continues to read as follows:                         23–15); whichever occurs later.
                                                    these figures, we estimate the cost of                                                                           (1) Airbus A318/A319/A320/A321 ALS
                                                    this proposed AD on U.S. operators to                       Authority: 49 U.S.C. 106(g), 40113, 44701.        Part 1—Safe Life Airworthiness Limitation
                                                    be $163,030, or $170 per product.                                                                             Items, Revision 02, dated May 13, 2011.
                                                                                                            § 39.13   [Amended]
                                                    Authority for This Rulemaking                                                                                    (2) Airbus A318/A319/A320/A321 ALS
                                                                                                            ■ 2. The FAA amends § 39.13 by                        Part 2—Damage-Tolerant Airworthiness
                                                       Title 49 of the United States Code                   removing Airworthiness Directive (AD)                 Limitation Items (DT ALI), Revision 02, dated
                                                    specifies the FAA’s authority to issue                  2015–05–02, Amendment 39–18112 (80                    May 28, 2013.
                                                    rules on aviation safety. Subtitle I,                   FR 15152, March 23, 2015), and adding
                                                                                                            the following new AD:                                 (h) Retained Limitation: No Alternative
                                                    section 106, describes the authority of
                                                                                                                                                                  Actions, Intervals, and/or Critical Design
                                                    the FAA Administrator. ‘‘Subtitle VII:                  Airbus: Docket No. FAA–2016–6429;                     Configuration Control Limitations (CDCCLs),
                                                    Aviation Programs,’’ describes in more                      Directorate Identifier 2015–NM–117–AD.            With Exception
                                                    detail the scope of the Agency’s
                                                                                                            (a) Comments Due Date                                    This paragraph restates the requirements of
                                                    authority.
                                                                                                              We must receive comments by June 27,                paragraph (o) of AD 2015–05–02, with an
                                                       We are issuing this rulemaking under
                                                                                                            2016.                                                 exception. Except as required by paragraph
                                                    the authority described in ‘‘Subtitle VII,                                                                    (i) of this AD, after accomplishing the
                                                    Part A, Subpart III, Section 44701:                     (b) Affected ADs                                      revision required by paragraph (g) of this AD,
                                                    General requirements.’’ Under that                        This AD replaces AD 2015–05–02,                     no alternative actions (e.g., inspections),
                                                    section, Congress charges the FAA with                  Amendment 39–18112 (80 FR 15152, March                intervals, and/or CDCCLs may be used unless
                                                    promoting safe flight of civil aircraft in              23, 2015) (‘‘AD 2015–05–02’’).                        the actions, intervals, and/or CDCCLs are
                                                    air commerce by prescribing regulations                                                                       approved as an alternative method of
                                                                                                            (c) Applicability
                                                    for practices, methods, and procedures                                                                        compliance (AMOC) in accordance with the
                                                    the Administrator finds necessary for                      This AD applies to the Airbus airplanes            procedures specified in paragraph (k)(1) of
                                                                                                            identified in paragraphs (c)(1) through (c)(4)        this AD.
                                                    safety in air commerce. This regulation
                                                                                                            of this AD, certificated in any category, with
                                                    is within the scope of that authority                   an original certificate of airworthiness or           (i) New Requirement of This AD:
                                                    because it addresses an unsafe condition                original export certificate of airworthiness          Maintenance or Inspection Program
                                                    that is likely to exist or develop on                   issued on or before January 15, 2016.                 Revision
                                                    products identified in this rulemaking                     (1) Model A318–111, –112, –121, and –122              Within 60 days after the effective date of
                                                    action.                                                 airplanes.                                            this AD, revise the maintenance or inspection
                                                                                                               (2) Model A319–111, –112, –113, –114,              program, as applicable, to incorporate the
                                                    Regulatory Findings                                     –115, –131, –132, and –133 airplanes.                 ALIs specified in Airbus A318/A319/A320/
                                                      We determined that this proposed AD                      (3) Model A320–211, –212, –214, –231,              A321 ALS Part 2, Damage Tolerant
                                                    would not have federalism implications                  –232, and –233 airplanes.                             Airworthiness Limitation Items (DT–ALI),
                                                    under Executive Order 13132. This                          (4) Model A321–111, –112, –131, –211,              Revision 04, dated December 18, 2015; and
                                                    proposed AD would not have a                            –212, –213, –231, and –232 airplanes.                 Airbus A318/A319/A320/A321 ALS Part 2,
                                                    substantial direct effect on the States, on             (d) Subject                                           Damage Tolerant Airworthiness Limitation
                                                    the relationship between the national                                                                         Items (DT–ALI), Variation 4.2, dated January
                                                                                                              Air Transport Association (ATA) of                  15, 2016. The initial compliance time for
                                                    Government and the States, or on the                    America Code 05, Periodic Inspections.                accomplishing the actions is at the applicable
                                                    distribution of power and                                                                                     time identified in the ALIs specified in
                                                    responsibilities among the various                      (e) Reason
                                                                                                                                                                  Airbus A318/A319/A320/A321 ALS Part 2,
                                                    levels of government.                                      This AD was prompted by an evaluation by
                                                                                                                                                                  Damage Tolerant Airworthiness Limitation
                                                      For the reasons discussed above, I                    the design approval holder (DAH) which
                                                                                                                                                                  Items (DT–ALI), Revision 04, dated December
                                                    certify this proposed regulation:                       indicates that principal structural elements
                                                                                                                                                                  18, 2015; and Airbus A318/A319/A320/A321
                                                      1. Is not a ‘‘significant regulatory                  and certain life limited parts are subject to
                                                                                                                                                                  ALS Part 2, Damage Tolerant Airworthiness
                                                    action’’ under Executive Order 12866;                   widespread fatigue damage (WFD). We are
                                                                                                                                                                  Limitation Items (DT–ALI), Variation 4.2,
                                                                                                            issuing this AD to prevent fatigue cracking,
                                                      2. Is not a ‘‘significant rule’’ under the                                                                  dated January 15, 2016; without exceeding
                                                                                                            accidental damage, or corrosion in principal
                                                    DOT Regulatory Policies and Procedures                  structural elements, and WFD, which could             the inspection intervals in the ALIs specified
                                                    (44 FR 11034, February 26, 1979);                       result in reduced structural integrity of the         in the service information identified in
                                                      3. Will not affect intrastate aviation in             airplane.                                             paragraph (g)(2) of this AD, except for the
                                                    Alaska; and                                                                                                   ALI tasks identified in paragraphs (i)(1)
                                                      4. Will not have a significant                        (f) Compliance                                        though (i)(4) of this AD. Accomplishing these
                                                    economic impact, positive or negative,                     Comply with this AD within the                     actions terminates the requirements of
                                                    on a substantial number of small entities               compliance times specified, unless already            paragraph (g)(2) of this AD.
                                                                                                            done.                                                    (1) Task 712111–01–1, ‘‘Detailed
                                                    under the criteria of the Regulatory
                                                                                                                                                                  Inspection of Forward Engine Mount
                                                    Flexibility Act.                                        (g) Retained Maintenance or Inspection                Installation.’’
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                                                    List of Subjects in 14 CFR Part 39                      Program Revision, With No Changes                        (2) Task 712111–01–2, ‘‘Detailed
                                                                                                               This paragraph restates the requirements of        Inspection of Forward Engine Mount
                                                      Air transportation, Aircraft, Aviation                paragraph (n) of AD 2015–05–02, with no               Installation.’’
                                                    safety, Incorporation by reference,                     changes. Within 30 days after March 2, 2015              (3) Task 712111–01–3, ‘‘Detailed
                                                    Safety.                                                 (the effective date of AD 2014–23–15,                 Inspection of Forward Engine Mount
                                                                                                            Amendment 39–18031 (80 FR 3871, January               Installation.’’
                                                    The Proposed Amendment
                                                                                                            26, 2015) (‘‘AD 2014–23–15’’)), revise the               (4) Task 712111–01–4, ‘‘Detailed
                                                      Accordingly, under the authority                      maintenance or inspection program, as                 Inspection of Forward Engine Mount
                                                    delegated to me by the Administrator,                   applicable, to incorporate the Airworthiness          Installation.’’



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                                                    29202                  Federal Register / Vol. 81, No. 91 / Wednesday, May 11, 2016 / Proposed Rules

                                                    (j) New No Alternative Actions and/or                     Issued in Renton, Washington, on May 3,               • Hand Delivery: Deliver to Mail
                                                    Intervals                                               2016.                                                 address above between 9 a.m. and 5
                                                       After accomplishing the revision required            Michael Kaszycki,                                     p.m., Monday through Friday, except
                                                    by paragraph (i) of this AD, no alternative             Acting Manager, Transport Airplane                    Federal holidays.
                                                    actions (e.g., inspections) and/or intervals            Directorate, Aircraft Certification Service.            For service information identified in
                                                    may be used unless the actions and/or                   [FR Doc. 2016–10914 Filed 5–10–16; 8:45 am]           this NPRM, contact Boeing Commercial
                                                    intervals are approved as an AMOC in
                                                    accordance with the procedures specified in             BILLING CODE 4910–13–P                                Airplanes, Attention: Data & Services
                                                    paragraph (k)(1) of this AD.                                                                                  Management, P.O. Box 3707, MC 2H–65,
                                                                                                                                                                  Seattle, WA 98124–2207; telephone
                                                    (k) Other FAA AD Provisions                             DEPARTMENT OF TRANSPORTATION                          206–544–5000, extension 1; fax 206–
                                                       The following provisions also apply to this                                                                766–5680; Internet https://
                                                    AD:                                                     Federal Aviation Administration                       www.myboeingfleet.com. You may view
                                                       (1) Alternative Methods of Compliance                                                                      this referenced service information at
                                                    (AMOCs): The Manager, International                     14 CFR Part 39                                        the FAA, Transport Airplane
                                                    Branch, ANM–116, Transport Airplane
                                                    Directorate, FAA, has the authority to                  [Docket No. FAA–2016–6430; Directorate                Directorate, 1601 Lind Avenue SW.,
                                                    approve AMOCs for this AD, if requested                 Identifier 2015–NM–176–AD;]                           Renton, WA. For information on the
                                                    using the procedures found in 14 CFR 39.19.                                                                   availability of this material at the FAA,
                                                                                                            RIN 2120–AA64
                                                    In accordance with 14 CFR 39.19, send your                                                                    call 425–227–1221. It is also available
                                                    request to your principal inspector or local            Airworthiness Directives; The Boeing                  on the Internet at http://
                                                    Flight Standards District Office, as                                                                          www.regulations.gov by searching for
                                                    appropriate. If sending information directly            Company Airplanes
                                                                                                                                                                  and locating Docket No. FAA–2016–
                                                    to the International Branch, send it to ATTN:           AGENCY: Federal Aviation                              6430.
                                                    Sanjay Ralhan, Aerospace Engineer,
                                                                                                            Administration (FAA), DOT.
                                                    International Branch, ANM–116, Transport                                                                      Examining the AD Docket
                                                    Airplane Directorate, FAA, 1601 Lind                    ACTION: Notice of proposed rulemaking
                                                    Avenue SW., Renton, WA 98057–3356;                      (NPRM).                                                  You may examine the AD docket on
                                                    telephone 425–227–1405; fax 425–227–1149.                                                                     the Internet at http://
                                                    Information may be emailed to: 9-ANM-116-               SUMMARY:   We propose to supersede                    www.regulations.gov by searching for
                                                    AMOC-REQUESTS@faa.gov.                                  Airworthiness Directive (AD) 2005–13–                 and locating Docket No. FAA–2016–
                                                       (i) Before using any approved AMOC,                  30, which applies to all Boeing Model                 6430; or in person at the Docket
                                                    notify your appropriate principal inspector,            737–100, –200, and –200C series                       Management Facility between 9 a.m.
                                                    or lacking a principal inspector, the manager           airplanes. AD 2005–13–30 currently                    and 5 p.m., Monday through Friday,
                                                    of the local flight standards district office/
                                                                                                            requires repetitive inspections to detect             except Federal holidays. The AD docket
                                                    certificate holding district office. The AMOC
                                                    approval letter must specifically reference             discrepancies of certain fuselage skin                contains this proposed AD, the
                                                    this AD.                                                panels located just aft of the wheel well,            regulatory evaluation, any comments
                                                       (ii) AMOCs approved previously for AD                and repair if necessary. Since we issued              received, and other information. The
                                                    2015–05–02, are approved as AMOCs for the               AD 2005–13–30, an evaluation by the                   street address for the Docket Office
                                                    corresponding provisions of paragraphs (g)              design approval holder (DAH) indicates                (phone: 800–647–5527) is in the
                                                    and (h) of this AD.                                     that the fuselage skin is subject to                  ADDRESSES section. Comments will be
                                                       (2) Contacting the Manufacturer: As of the           widespread fatigue damage (WFD), and                  available in the AD docket shortly after
                                                    effective date of this AD, for any requirement          we have received reports of cracks at the             receipt.
                                                    in this AD to obtain corrective actions from
                                                                                                            chem-milled steps in the fuselage skin.               FOR FURTHER INFORMATION CONTACT:
                                                    a manufacturer, the action must be
                                                    accomplished using a method approved by                 This proposed AD would add new                        Wade Sullivan, Aerospace Engineer,
                                                    the Manager, International Branch, ANM–                 fuselage skin inspections for cracking,               Airframe Branch, ANM–120S, FAA,
                                                    116, Transport Airplane Directorate, FAA; or            inspections to detect missing or loose                Seattle Aircraft Certification Office
                                                    the European Aviation Safety Agency                     fasteners and any disbonding or                       (ACO), 1601 Lind Avenue SW., Renton,
                                                    (EASA); or Airbus’s EASA Design                         cracking of bonded doublers, permanent                WA 98057–3356; phone: 425–917–6430;
                                                    Organization Approval (DOA). If approved by             repairs of time-limited repairs, related              fax: 425–917–6590; email:
                                                    the DOA, the approval must include the                  investigative and corrective actions if
                                                    DOA-authorized signature.                                                                                     wade.sullivan@faa.gov.
                                                                                                            necessary, and skin panel replacement.
                                                                                                                                                                  SUPPLEMENTARY INFORMATION:
                                                    (l) Related Information                                 We are proposing this AD to detect and
                                                       (1) Refer to Mandatory Continuing                    correct fatigue cracking of the fuselage              Comments Invited
                                                    Airworthiness Information (MCAI) EASA                   skin panels, which could cause rapid                    We invite you to send any written
                                                    Airworthiness Directive 2015–0083, dated                decompression of the airplane.                        relevant data, views, or arguments about
                                                    May 12, 2015, for related information. This             DATES: We must receive comments on                    this proposed AD. Send your comments
                                                    MCAI may be found in the AD docket on the               this proposed AD by June 27, 2016.
                                                    Internet at http://www.regulations.gov by                                                                     to an address listed under the
                                                    searching for and locating Docket No. FAA–              ADDRESSES: You may send comments,                     ADDRESSES section. Include ‘‘Docket No.
                                                    2016–6429.                                              using the procedures found in 14 CFR                  FAA–2016–6430; Directorate Identifier
                                                       (2) For service information identified in            11.43 and 11.45, by any of the following              2015–NM–176–AD’’ at the beginning of
                                                    this AD, contact Airbus, Airworthiness                  methods:                                              your comments. We specifically invite
                                                    Office—EIAS, 1 Rond Point Maurice                         • Federal eRulemaking Portal: Go to                 comments on the overall regulatory,
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                                                    Bellonte, 31707 Blagnac Cedex, France;                  http://www.regulations.gov. Follow the                economic, environmental, and energy
                                                    telephone +33 5 61 93 36 96; fax +33 5 61               instructions for submitting comments.                 aspects of this proposed AD. We will
                                                    93 44 51; email account.airworth-eas@
                                                                                                              • Fax: 202–493–2251.                                consider all comments received by the
                                                    airbus.com; Internet http://www.airbus.com.
                                                    You may view this service information at the              • Mail: U.S. Department of                          closing date and may amend this
                                                    FAA, Transport Airplane Directorate, 1601               Transportation, Docket Operations, M–                 proposed AD because of those
                                                    Lind Avenue SW., Renton, WA. For                        30, West Building Ground Floor, Room                  comments.
                                                    information on the availability of this                 W12–140, 1200 New Jersey Avenue SE.,                    We will post all comments we
                                                    material at the FAA, call 425–227–1221.                 Washington, DC 20590.                                 receive, without change, to http://


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Document Created: 2016-05-11 01:11:48
Document Modified: 2016-05-11 01:11:48
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 June 27, 2016.
ContactSanjay Ralhan, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1405; fax 425-227-1149.
FR Citation81 FR 29198 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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