81_FR_66166 81 FR 65980 - Airworthiness Directives; Airbus Airplanes

81 FR 65980 - Airworthiness Directives; Airbus Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 186 (September 26, 2016)

Page Range65980-65983
FR Document2016-21703

We propose to adopt a new airworthiness directive (AD) 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. This proposed AD was prompted by reports of engine fan cowl door (FCD) losses on airplanes equipped with CFM56 engines due to operator failure to close the FCD during ground operations. This proposed AD would require modification and re-identification of certain FCDs or replacement of certain FCDs. This proposed AD would also require installation of a placard. We are proposing this AD to prevent in-flight loss of an engine FCD and possible consequent damage to the airplane.

Federal Register, Volume 81 Issue 186 (Monday, September 26, 2016)
[Federal Register Volume 81, Number 186 (Monday, September 26, 2016)]
[Proposed Rules]
[Pages 65980-65983]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-21703]


========================================================================
Proposed Rules
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains notices to the public of 
the proposed issuance of rules and regulations. The purpose of these 
notices is to give interested persons an opportunity to participate in 
the rule making prior to the adoption of the final rules.

========================================================================


Federal Register / Vol. 81, No. 186 / Monday, September 26, 2016 / 
Proposed Rules

[[Page 65980]]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-9074; Directorate Identifier 2016-NM-097-AD]
RIN 2120-AA64


Airworthiness Directives; Airbus Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for all 
Airbus Model A318-111 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. This proposed AD 
was prompted by reports of engine fan cowl door (FCD) losses on 
airplanes equipped with CFM56 engines due to operator failure to close 
the FCD during ground operations. This proposed AD would require 
modification and re-identification of certain FCDs or replacement of 
certain FCDs. This proposed AD would also require installation of a 
placard. We are proposing this AD to prevent in-flight loss of an 
engine FCD and possible consequent damage to the airplane.

DATES: We must receive comments on this proposed AD by November 10, 
2016.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this NPRM, contact Airbus, 
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-
9074; 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: 

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-2016-9074; 
Directorate Identifier 2016-NM-097-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

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Union, has issued EASA 
Airworthiness Directive, 2016-0069, dated April 11, 2016 (referred to 
after this as the Mandatory Continuing Airworthiness Information, or 
``the MCAI''), to correct an unsafe condition 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. The MCAI states:

    Fan Cowl Door (FCD) losses were reported on aeroplanes equipped 
with CFM56 engines.
    Investigations confirmed that in all cases the fan cowls were 
opened prior to the flight and were not correctly re-secured. During 
the pre-flight inspection, it was then not detected that the FCD 
were not properly latched.
    This condition, if not detected and corrected, could lead to in-
flight loss of a FCD, possibly resulting in damage to the aeroplane 
and/or injury to persons on the ground.
    Prompted by these events, new FCD front latch and keeper 
assembly were developed, having a specific key necessary to un-latch 
the FCD. This key cannot be removed unless the FCD front latch is 
safely closed. The key, after removal, must be stowed in the flight 
deck at a specific location, as instructed in the applicable 
Aircraft Maintenance Manual. Applicable Flight Crew Operating Manual 
has been amended accordingly. After modification, the FCD is 
identified with a different Part Number (P/N).
    For the reasons described above, this [EASA] AD requires 
modification and re-identification of FCD [or replacement of the 
FCD].

    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-
9074.

Related Service Information Under 1 CFR Part 51

    We reviewed Airbus Service Bulletin A320-71-1068, Revision 01, 
dated April 28, 2016. This service information describes procedures for 
modifying the left-hand and right-hand FCDs on engines 1 and 2; 
installing a placard;

[[Page 65981]]

and re-identifying both the left-hand and right-hand FCDs with the new 
part number. 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.

Differences Between This Proposed AD and the MCAI or Service 
Information

    The parts installation prohibition specified in paragraph (5) of 
the MCAI depends on the configuration of the airplane. However, 
paragraph (k) of this proposed AD prohibits installing certain parts 
for all airplanes as of the effective date of this proposed AD.

Costs of Compliance

    We estimate that this proposed AD affects 400 airplanes of U.S. 
registry.
    We estimate the following costs to comply with this proposed AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                    Cost per       Cost on U.S.
               Action                        Labor cost           Parts cost        product         operators
----------------------------------------------------------------------------------------------------------------
Modification and re-identification    Up to 7 work-hours x             $4,865           $5,460       $2,184,000
 of (or replacement of) FCD, and       $85 per hour = $595.
 Installation of Placard.
----------------------------------------------------------------------------------------------------------------

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(h), 40113, 44701.


Sec.  39.13   [Amended]

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

Airbus: Docket No. FAA-2016-9074; Directorate Identifier 2016-NM-
097-AD.

(a) Comments Due Date

    We must receive comments by November 10, 2016.

(b) Affected ADs

    None.

(c) Applicability

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

(d) Subject

    Air Transport Association (ATA) of America Code 71, Powerplant.

(e) Reason

    This AD was prompted by reports of engine fan cowl door (FCD) 
losses on airplanes equipped with CFM56 engines due to operator 
failure to close the FCD during ground operations. We are issuing 
this AD to prevent in-flight loss of an engine FCD and possible 
consequent damage to the airplane.

(f) Compliance

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

(g) Modification of Affected Fan Cowl Doors and Placard Installation

    Within 35 months after the effective date of this AD, accomplish 
concurrently the actions in paragraphs (g)(1), (g)(2) and (g)(3) of 
this AD, in accordance with the Accomplishment Instructions of 
Airbus Service Bulletin A320-71-1068, Revision 01, dated April 28, 
2016.
    (1) Modify the left-hand and right-hand FCDs on engines 1 and 2.
    (2) Install a placard on the box located at the bottom of the 
120 volt unit (120 VU) panel, or at the bottom of the coat stowage, 
as applicable to airplane configuration.
    (3) Re-identify both the left-hand and right-hand FCDs with the 
new part number, as applicable, as specified in table 1 to 
paragraphs (g), (h), (i), and (k) of this AD.

[[Page 65982]]



 Table 1 to Paragraphs (g), (h), (i), and (k) of This AD--Fan Cowl Door
                        Part Number (P/N) Change
------------------------------------------------------------------------
           Door position                 Old P/N            New P/N
------------------------------------------------------------------------
Left-hand Side--CFM56-5A..........       238-0301-501       238M0301-501
                                         238-0301-503       238M0301-503
                                         238-0301-505       238M0301-505
                                         238-0301-507       238M0301-507
                                         238-0301-511       238M0301-511
                                         238-0301-513       238M0301-513
                                         238-0301-515       238M0301-515
                                         238-0301-517       238M0301-517
                                         238-0301-519       238M0301-519
                                         238-0301-521       238M0301-521
                                         238-0301-523       238M0301-523
                                         238-0301-525       238M0301-525
                                         238-0301-527       238M0301-527
                                         238-0301-529       238-0301-533
                                         238-0301-531       238-0301-535
Right-hand Side--CFM56-5A.........       238-0302-501       238M0302-501
                                         238-0302-503       238M0302-503
                                         238-0302-505       238M0302-505
                                         238-0302-509       238M0302-509
                                         238-0302-511       238M0302-511
                                         238-0302-513       238M0302-513
                                         238-0302-515       238M0302-515
                                         238-0302-517       238M0302-517
                                         238-0302-519       238M0302-519
                                         238-0302-521       238M0302-521
                                         238-0302-523       238M0302-523
                                         238-0302-525       238M0302-525
                                         238-0302-527       238M0302-527
                                         238-0302-529       238M0302-529
                                         238-0302-531       238M0302-531
                                         238-0302-533       238M0302-533
                                         238-0302-535       238M0302-535
                                         238-0302-537       238M0302-537
                                         238-0302-539       238-0302-547
                                         238-0302-541       238-0302-549
                                         238-0302-543       238-0302-551
                                         238-0302-545       238-0302-553
Left-hand Side--CFM56-5B..........       642-3001-503       642M3001-503
                                         642-3001-505       642M3001-505
                                         642-3001-507       642-3001-511
                                         642-3001-509       642-3001-513
Right-hand Side--CFM56-5B.........       642-3002-503       642M3002-503
                                         642-3002-505       642M3002-505
                                         642-3002-507       642M3002-507
                                         642-3002-509       642M3002-509
                                         642-3002-511       642-3002-519
                                         642-3002-513       642-3002-521
                                         642-3002-515       642-3002-523
                                         642-3002-517       642-3002-525
------------------------------------------------------------------------

(h) Replacement of Affected Fan Cowl Door With New Door Design

    Replacing the FCDs, having a part number listed as ``Old P/N'' 
in table 1 to paragraphs (g), (h), (i), and (k) of this AD, with the 
FCDs having the corresponding part number listed as ``New P/N'' in 
table 1 to paragraphs (g), (h), (i), and (k) of this AD, is equal to 
compliance with paragraphs (g)(1) and (g)(3) of this AD. The 
replacement must be done in accordance with instructions approved by 
the Manager, International Branch, ANM-116, Transport Airplane 
Directorate, FAA; or the European Aviation Safety Agency (EASA), or 
approved under Airbus's EASA Design Organization Approval (DOA).

(i) Compliance Information for Airplanes on Which Airbus Modification 
157517 Is Embodied

    An airplane on which Airbus modification 157517 has been 
embodied in production, is compliant with the requirements of 
paragraphs (g)(1) and (g)(3) of this AD, provided it is determined 
that no FCD, having a part number identified as ``Old P/N'' in table 
1 to paragraphs (g), (h), (i), and (k) of this AD, are installed on 
that airplane at the effective date of the AD.

(j) Compliance Information for Airplanes on Which Airbus Modification 
157519 or Modification 157521 is Embodied

    An airplane on which Airbus modification 157519 or modification 
157521 has been embodied in production is compliant with the 
requirements of paragraph (g)(2) of this AD.

(k) Parts Installation Prohibition

    As of the effective date of this AD, do not install on any 
airplane an FCD part number identified as ``Old P/N'' in table 1 to 
paragraphs (g), (h), (i), and (k) of this AD.

(l) Installation of Approved Parts

    Installation on an airplane of right-hand and left-hand FCD, 
having a part number approved after the effective date of this AD, 
is equal to compliance with the requirements of paragraphs (g)(1) 
and (g)(3) of this AD for that airplane only, provided the 
conditions specified in paragraphs (l)(1) and (l)(2) of this AD are 
met.
    (1) The part number must be approved by the Manager, 
International Branch, ANM-

[[Page 65983]]

116, Transport Airplane Directorate, FAA; or EASA, or approved under 
Airbus's EASA DOA.
    (2) The FCD installation must be accomplished in accordance with 
airplane modification instructions approved by the Manager, 
International Branch, ANM-116, Transport Airplane Directorate, FAA; 
or EASA; or approved under Airbus's EASA DOA.

(m) Credit for Previous Actions

    This paragraph provides credit for actions required by paragraph 
(g) of this AD, if those actions were performed before the effective 
date of this AD using Airbus Service Bulletin A320-71-1068, dated 
December 18, 2015, which is not incorporated by reference in this 
AD.

(n) 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]. 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.
    (2) Contacting the Manufacturer: For any requirement in this AD 
to obtain corrective actions from a manufacturer, the action must be 
accomplished using a method approved by the Manager, International 
Branch, ANM-116, Transport Airplane Directorate, FAA; or the EASA; 
or Airbus's EASA DOA. If approved by the DOA, the approval must 
include the DOA-authorized signature.

(o) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) EASA Airworthiness Directive 2016-0069, dated April 11, 2016, 
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-2016-9074.
    (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 August 31, 2016.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-21703 Filed 9-23-16; 8:45 am]
 BILLING CODE 4910-13-P



                                                    65980

                                                    Proposed Rules                                                                                                Federal Register
                                                                                                                                                                  Vol. 81, No. 186

                                                                                                                                                                  Monday, September 26, 2016



                                                    This section of the FEDERAL REGISTER                      • Hand Delivery: Deliver to Mail                    www.regulations.gov, including any
                                                    contains notices to the public of the proposed          address above between 9 a.m. and 5                    personal information you provide. We
                                                    issuance of rules and regulations. The                  p.m., Monday through Friday, except                   will also post a report summarizing each
                                                    purpose of these notices is to give interested          Federal holidays.                                     substantive verbal contact we receive
                                                    persons an opportunity to participate in the              For service information identified in               about this proposed AD.
                                                    rule making prior to the adoption of the final
                                                                                                            this NPRM, contact Airbus,
                                                    rules.                                                                                                        Discussion
                                                                                                            Airworthiness Office–EIAS, 1 Rond
                                                                                                            Point Maurice Bellonte, 31707 Blagnac                   The European Aviation Safety Agency
                                                    DEPARTMENT OF TRANSPORTATION                            Cedex, France; telephone +33 5 61 93 36               (EASA), which is the Technical Agent
                                                                                                            96; fax +33 5 61 93 44 51; email                      for the Member States of the European
                                                    Federal Aviation Administration                         account.airworth-eas@airbus.com;                      Union, has issued EASA Airworthiness
                                                                                                            Internet http://www.airbus.com. You                   Directive, 2016–0069, dated April 11,
                                                    14 CFR Part 39                                          may view this referenced service                      2016 (referred to after this as the
                                                                                                            information at the FAA, Transport                     Mandatory Continuing Airworthiness
                                                    [Docket No. FAA–2016–9074; Directorate                                                                        Information, or ‘‘the MCAI’’), to correct
                                                    Identifier 2016–NM–097–AD]                              Airplane Directorate, 1601 Lind Avenue
                                                                                                            SW., Renton, WA. For information on                   an unsafe condition for all Airbus
                                                    RIN 2120–AA64                                           the availability of this material at the              Model A318–111 and –112 airplanes,
                                                                                                            FAA, call 425 227–1221.                               Model A319–111, –112, –113, –114, and
                                                    Airworthiness Directives; Airbus                                                                              –115 airplanes, Model A320–211, –212,
                                                    Airplanes                                               Examining the AD Docket                               and –214 airplanes, and Model A321–
                                                    AGENCY: Federal Aviation                                   You may examine the AD docket on                   111, –112, –211, –212, and –213
                                                    Administration (FAA), DOT.                              the Internet at http://                               airplanes. The MCAI states:
                                                    ACTION: Notice of proposed rulemaking                   www.regulations.gov by searching for                     Fan Cowl Door (FCD) losses were reported
                                                    (NPRM).                                                 and locating Docket No. FAA–2016–                     on aeroplanes equipped with CFM56
                                                                                                            9074; or in person at the Docket                      engines.
                                                    SUMMARY:    We propose to adopt a new                   Management Facility between 9 a.m.                       Investigations confirmed that in all cases
                                                    airworthiness directive (AD) for all                    and 5 p.m., Monday through Friday,                    the fan cowls were opened prior to the flight
                                                    Airbus Model A318–111 and –112                          except Federal holidays. The AD docket                and were not correctly re-secured. During the
                                                                                                                                                                  pre-flight inspection, it was then not detected
                                                    airplanes, Model A319–111, –112, –113,                  contains this proposed AD, the                        that the FCD were not properly latched.
                                                    –114, and –115 airplanes, Model A320–                   regulatory evaluation, any comments                      This condition, if not detected and
                                                    211, –212, and –214 airplanes, and                      received, and other information. The                  corrected, could lead to in-flight loss of a
                                                    Model A321–111, –112, –211, –212, and                   street address for the Docket Operations              FCD, possibly resulting in damage to the
                                                    –213 airplanes. This proposed AD was                    office (telephone 800–647–5527) is in                 aeroplane and/or injury to persons on the
                                                    prompted by reports of engine fan cowl                  the ADDRESSES section. Comments will                  ground.
                                                    door (FCD) losses on airplanes equipped                 be available in the AD docket shortly                    Prompted by these events, new FCD front
                                                    with CFM56 engines due to operator                                                                            latch and keeper assembly were developed,
                                                                                                            after receipt.
                                                                                                                                                                  having a specific key necessary to un-latch
                                                    failure to close the FCD during ground                  FOR FURTHER INFORMATION CONTACT:                      the FCD. This key cannot be removed unless
                                                    operations. This proposed AD would                      Sanjay Ralhan, Aerospace Engineer,                    the FCD front latch is safely closed. The key,
                                                    require modification and re-                            International Branch, ANM–116,                        after removal, must be stowed in the flight
                                                    identification of certain FCDs or                       Transport Airplane Directorate, FAA,                  deck at a specific location, as instructed in
                                                    replacement of certain FCDs. This                       1601 Lind Avenue SW., Renton, WA                      the applicable Aircraft Maintenance Manual.
                                                    proposed AD would also require                          98057–3356; telephone 425–227–1405;                   Applicable Flight Crew Operating Manual
                                                    installation of a placard. We are                                                                             has been amended accordingly. After
                                                                                                            fax 425–227–1149.                                     modification, the FCD is identified with a
                                                    proposing this AD to prevent in-flight                  SUPPLEMENTARY INFORMATION:                            different Part Number (P/N).
                                                    loss of an engine FCD and possible                                                                               For the reasons described above, this
                                                    consequent damage to the airplane.                      Comments Invited                                      [EASA] AD requires modification and re-
                                                    DATES: We must receive comments on                        We invite you to send any written                   identification of FCD [or replacement of the
                                                    this proposed AD by November 10,                        relevant data, views, or arguments about              FCD].
                                                    2016.                                                   this proposed AD. Send your comments                    You may examine the MCAI in the
                                                    ADDRESSES: You may send comments,                       to an address listed under the                        AD docket on the Internet at http://
                                                    using the procedures found in 14 CFR                    ADDRESSES section. Include ‘‘Docket No.               www.regulations.gov by searching for
                                                    11.43 and 11.45, by any of the following                FAA–2016–9074; Directorate Identifier                 and locating Docket No. FAA–2016–
                                                    methods:                                                2016–NM–097–AD’’ at the beginning of                  9074.
                                                       • Federal eRulemaking Portal: Go to                  your comments. We specifically invite
mstockstill on DSK3G9T082PROD with PROPOSALS




                                                                                                            comments on the overall regulatory,                   Related Service Information Under 1
                                                    http://www.regulations.gov. Follow the
                                                                                                            economic, environmental, and energy                   CFR Part 51
                                                    instructions for submitting comments.
                                                       • Fax: 202–493–2251.                                 aspects of this proposed AD. We will                     We reviewed Airbus Service Bulletin
                                                       • Mail: U.S. Department of                           consider all comments received by the                 A320–71–1068, Revision 01, dated April
                                                    Transportation, Docket Operations, M–                   closing date and may amend this                       28, 2016. This service information
                                                    30, West Building Ground Floor, Room                    proposed AD based on those comments.                  describes procedures for modifying the
                                                    W12–140, 1200 New Jersey Avenue SE.,                      We will post all comments we                        left-hand and right-hand FCDs on
                                                    Washington, DC 20590.                                   receive, without change, to http://                   engines 1 and 2; installing a placard;


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                                                                        Federal Register / Vol. 81, No. 186 / Monday, September 26, 2016 / Proposed Rules                                               65981

                                                    and re-identifying both the left-hand                   bilateral agreement with the State of                 depends on the configuration of the
                                                    and right-hand FCDs with the new part                   Design Authority, we have been notified               airplane. However, paragraph (k) of this
                                                    number. This service information is                     of the unsafe condition described in the              proposed AD prohibits installing certain
                                                    reasonably available because the                        MCAI and service information                          parts for all airplanes as of the effective
                                                    interested parties have access to it                    referenced above. We are proposing this               date of this proposed AD.
                                                    through their normal course of business                 AD because we evaluated all pertinent
                                                    or by the means identified in the                       information and determined an unsafe                  Costs of Compliance
                                                    ADDRESSES section.                                      condition exists and is likely to exist or
                                                                                                                                                                     We estimate that this proposed AD
                                                                                                            develop on other products of these same
                                                    FAA’s Determination and Requirements                                                                          affects 400 airplanes of U.S. registry.
                                                                                                            type designs.
                                                    of This Proposed AD                                                                                              We estimate the following costs to
                                                      This product has been approved by                     Differences Between This Proposed AD
                                                                                                                                                                  comply with this proposed AD:
                                                    the aviation authority of another                       and the MCAI or Service Information
                                                    country, and is approved for operation                    The parts installation prohibition
                                                    in the United States. Pursuant to our                   specified in paragraph (5) of the MCAI

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

                                                    Modification and re-identification of (or re-          Up to 7 work-hours × $85 per hour = $595 ...            $4,865           $5,460          $2,184,000
                                                     placement of) FCD, and Installation of
                                                     Placard.



                                                    Authority for This Rulemaking                             3. Will not affect intrastate aviation in             (1) Airbus Model A318–111 and –112
                                                                                                            Alaska; and                                           airplanes.
                                                       Title 49 of the United States Code
                                                                                                              4. Will not have a significant                        (2) Airbus Model A319–111, –112, –113,
                                                    specifies the FAA’s authority to issue                                                                        –114, and –115 airplanes.
                                                    rules on aviation safety. Subtitle I,                   economic impact, positive or negative,
                                                                                                            on a substantial number of small entities               (3) Airbus Model A320–211, –212, and
                                                    section 106, describes the authority of                                                                       –214 airplanes.
                                                    the FAA Administrator. ‘‘Subtitle VII:                  under the criteria of the Regulatory
                                                                                                            Flexibility Act.                                        (4) Airbus Model A321–111, –112, –211,
                                                    Aviation Programs,’’ describes in more                                                                        –212, and –213 airplanes.
                                                    detail the scope of the Agency’s                        List of Subjects in 14 CFR Part 39
                                                    authority.                                                                                                    (d) Subject
                                                                                                              Air transportation, Aircraft, Aviation
                                                       We are issuing this rulemaking under                                                                        Air Transport Association (ATA) of
                                                    the authority described in ‘‘Subtitle VII,              safety, Incorporation by reference,                   America Code 71, Powerplant.
                                                    Part A, Subpart III, Section 44701:                     Safety.
                                                                                                                                                                  (e) Reason
                                                    General requirements.’’ Under that                      The Proposed Amendment
                                                    section, Congress charges the FAA with                                                                          This AD was prompted by reports of
                                                                                                              Accordingly, under the authority                    engine fan cowl door (FCD) losses on
                                                    promoting safe flight of civil aircraft in              delegated to me by the Administrator,                 airplanes equipped with CFM56 engines due
                                                    air commerce by prescribing regulations                 the FAA proposes to amend 14 CFR part                 to operator failure to close the FCD during
                                                    for practices, methods, and procedures                  39 as follows:                                        ground operations. We are issuing this AD to
                                                    the Administrator finds necessary for                                                                         prevent in-flight loss of an engine FCD and
                                                    safety in air commerce. This regulation                 PART 39—AIRWORTHINESS                                 possible consequent damage to the airplane.
                                                    is within the scope of that authority                   DIRECTIVES
                                                    because it addresses an unsafe condition                                                                      (f) Compliance
                                                    that is likely to exist or develop on                   ■ 1. The authority citation for part 39                 Comply with this AD within the
                                                    products identified in this rulemaking                  continues to read as follows:                         compliance times specified, unless already
                                                    action.                                                     Authority: 49 U.S.C. 106(h), 40113, 44701.        done.
                                                    Regulatory Findings                                                                                           (g) Modification of Affected Fan Cowl Doors
                                                                                                            § 39.13   [Amended]
                                                                                                                                                                  and Placard Installation
                                                      We determined that this proposed AD                   ■ 2. The FAA amends § 39.13 by adding
                                                    would not have federalism implications                                                                          Within 35 months after the effective date
                                                                                                            the following new airworthiness
                                                    under Executive Order 13132. This                                                                             of this AD, accomplish concurrently the
                                                                                                            directive (AD):                                       actions in paragraphs (g)(1), (g)(2) and (g)(3)
                                                    proposed AD would not have a
                                                                                                            Airbus: Docket No. FAA–2016–9074;                     of this AD, in accordance with the
                                                    substantial direct effect on the States, on                 Directorate Identifier 2016–NM–097–AD.            Accomplishment Instructions of Airbus
                                                    the relationship between the national                                                                         Service Bulletin A320–71–1068, Revision 01,
                                                    Government and the States, or on the                    (a) Comments Due Date
                                                                                                                                                                  dated April 28, 2016.
                                                    distribution of power and                                 We must receive comments by November                  (1) Modify the left-hand and right-hand
                                                    responsibilities among the various                      10, 2016.                                             FCDs on engines 1 and 2.
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                                                    levels of government.                                   (b) Affected ADs                                        (2) Install a placard on the box located at
                                                      For the reasons discussed above, I                                                                          the bottom of the 120 volt unit (120 VU)
                                                                                                              None.
                                                    certify this proposed regulation:                                                                             panel, or at the bottom of the coat stowage,
                                                      1. Is not a ‘‘significant regulatory                  (c) Applicability                                     as applicable to airplane configuration.
                                                    action’’ under Executive Order 12866;                      This AD applies to the Airbus airplanes,             (3) Re-identify both the left-hand and right-
                                                      2. Is not a ‘‘significant rule’’ under the            certificated in any category, identified in           hand FCDs with the new part number, as
                                                    DOT Regulatory Policies and Procedures                  paragraphs (c)(1) through (c)(4) of this AD, all      applicable, as specified in table 1 to
                                                    (44 FR 11034, February 26, 1979);                       manufacturer serial numbers.                          paragraphs (g), (h), (i), and (k) of this AD.



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                                                    65982                     Federal Register / Vol. 81, No. 186 / Monday, September 26, 2016 / Proposed Rules

                                                              TABLE 1 TO PARAGRAPHS (g), (h), (i), AND (k) OF THIS AD—FAN COWL DOOR PART NUMBER (P/N) CHANGE
                                                                                                                  Door position                                                                            Old P/N             New P/N

                                                    Left-hand Side—CFM56–5A ........................................................................................................................      238–0301–501       238M0301–501
                                                                                                                                                                                                          238–0301–503       238M0301–503
                                                                                                                                                                                                          238–0301–505       238M0301–505
                                                                                                                                                                                                          238–0301–507       238M0301–507
                                                                                                                                                                                                          238–0301–511       238M0301–511
                                                                                                                                                                                                          238–0301–513       238M0301–513
                                                                                                                                                                                                          238–0301–515       238M0301–515
                                                                                                                                                                                                          238–0301–517       238M0301–517
                                                                                                                                                                                                          238–0301–519       238M0301–519
                                                                                                                                                                                                          238–0301–521       238M0301–521
                                                                                                                                                                                                          238–0301–523       238M0301–523
                                                                                                                                                                                                          238–0301–525       238M0301–525
                                                                                                                                                                                                          238–0301–527       238M0301–527
                                                                                                                                                                                                          238–0301–529       238–0301–533
                                                                                                                                                                                                          238–0301–531       238–0301–535
                                                    Right-hand Side—CFM56–5A .....................................................................................................................        238–0302–501       238M0302–501
                                                                                                                                                                                                          238–0302–503       238M0302–503
                                                                                                                                                                                                          238–0302–505       238M0302–505
                                                                                                                                                                                                          238–0302–509       238M0302–509
                                                                                                                                                                                                          238–0302–511       238M0302–511
                                                                                                                                                                                                          238–0302–513       238M0302–513
                                                                                                                                                                                                          238–0302–515       238M0302–515
                                                                                                                                                                                                          238–0302–517       238M0302–517
                                                                                                                                                                                                          238–0302–519       238M0302–519
                                                                                                                                                                                                          238–0302–521       238M0302–521
                                                                                                                                                                                                          238–0302–523       238M0302–523
                                                                                                                                                                                                          238–0302–525       238M0302–525
                                                                                                                                                                                                          238–0302–527       238M0302–527
                                                                                                                                                                                                          238–0302–529       238M0302–529
                                                                                                                                                                                                          238–0302–531       238M0302–531
                                                                                                                                                                                                          238–0302–533       238M0302–533
                                                                                                                                                                                                          238–0302–535       238M0302–535
                                                                                                                                                                                                          238–0302–537       238M0302–537
                                                                                                                                                                                                          238–0302–539       238–0302–547
                                                                                                                                                                                                          238–0302–541       238–0302–549
                                                                                                                                                                                                          238–0302–543       238–0302–551
                                                                                                                                                                                                          238–0302–545       238–0302–553
                                                    Left-hand Side—CFM56–5B ........................................................................................................................      642–3001–503       642M3001–503
                                                                                                                                                                                                          642–3001–505       642M3001–505
                                                                                                                                                                                                          642–3001–507       642–3001–511
                                                                                                                                                                                                          642–3001–509       642–3001–513
                                                    Right-hand Side—CFM56–5B .....................................................................................................................        642–3002–503       642M3002–503
                                                                                                                                                                                                          642–3002–505       642M3002–505
                                                                                                                                                                                                          642–3002–507       642M3002–507
                                                                                                                                                                                                          642–3002–509       642M3002–509
                                                                                                                                                                                                          642–3002–511       642–3002–519
                                                                                                                                                                                                          642–3002–513       642–3002–521
                                                                                                                                                                                                          642–3002–515       642–3002–523
                                                                                                                                                                                                          642–3002–517       642–3002–525



                                                    (h) Replacement of Affected Fan Cowl Door                           (i) Compliance Information for Airplanes on                          the requirements of paragraph (g)(2) of this
                                                    With New Door Design                                                Which Airbus Modification 157517 Is                                  AD.
                                                                                                                        Embodied
                                                       Replacing the FCDs, having a part number                                                                                              (k) Parts Installation Prohibition
                                                    listed as ‘‘Old P/N’’ in table 1 to paragraphs                         An airplane on which Airbus modification
                                                                                                                                                                                               As of the effective date of this AD, do not
                                                    (g), (h), (i), and (k) of this AD, with the FCDs                    157517 has been embodied in production, is
                                                                                                                                                                                             install on any airplane an FCD part number
                                                    having the corresponding part number listed                         compliant with the requirements of                                   identified as ‘‘Old P/N’’ in table 1 to
                                                    as ‘‘New P/N’’ in table 1 to paragraphs (g),                        paragraphs (g)(1) and (g)(3) of this AD,                             paragraphs (g), (h), (i), and (k) of this AD.
                                                    (h), (i), and (k) of this AD, is equal to                           provided it is determined that no FCD,
                                                                                                                        having a part number identified as ‘‘Old P/                          (l) Installation of Approved Parts
                                                    compliance with paragraphs (g)(1) and (g)(3)
                                                    of this AD. The replacement must be done in                         N’’ in table 1 to paragraphs (g), (h), (i), and                         Installation on an airplane of right-hand
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                                                    accordance with instructions approved by                            (k) of this AD, are installed on that airplane                       and left-hand FCD, having a part number
                                                    the Manager, International Branch, ANM–                             at the effective date of the AD.                                     approved after the effective date of this AD,
                                                                                                                                                                                             is equal to compliance with the requirements
                                                    116, Transport Airplane Directorate, FAA; or                        (j) Compliance Information for Airplanes on                          of paragraphs (g)(1) and (g)(3) of this AD for
                                                    the European Aviation Safety Agency                                 Which Airbus Modification 157519 or
                                                                                                                                                                                             that airplane only, provided the conditions
                                                    (EASA), or approved under Airbus’s EASA                             Modification 157521 is Embodied
                                                                                                                                                                                             specified in paragraphs (l)(1) and (l)(2) of this
                                                    Design Organization Approval (DOA).                                   An airplane on which Airbus modification                           AD are met.
                                                                                                                        157519 or modification 157521 has been                                  (1) The part number must be approved by
                                                                                                                        embodied in production is compliant with                             the Manager, International Branch, ANM–



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                                                                        Federal Register / Vol. 81, No. 186 / Monday, September 26, 2016 / Proposed Rules                                              65983

                                                    116, Transport Airplane Directorate, FAA; or            information on the availability of this               Background
                                                    EASA, or approved under Airbus’s EASA                   material at the FAA, call 425–227–1221.
                                                    DOA.                                                                                                            The notice of proposed rulemaking
                                                                                                              Issued in Renton, Washington, on August             that is subject of this document is under
                                                      (2) The FCD installation must be                      31, 2016.
                                                    accomplished in accordance with airplane                                                                      section 6050S of the Internal Revenue
                                                    modification instructions approved by the               Michael Kaszycki,                                     Code.
                                                    Manager, International Branch, ANM–116,                 Acting Manager, Transport Airplane
                                                    Transport Airplane Directorate, FAA; or                 Directorate, Aircraft Certification Service.          Need for Correction
                                                    EASA; or approved under Airbus’s EASA                   [FR Doc. 2016–21703 Filed 9–23–16; 8:45 am]             As published, the notice of proposed
                                                    DOA.                                                    BILLING CODE 4910–13–P                                rulemaking and notice of public hearing
                                                    (m) Credit for Previous Actions                                                                               (REG–131418–14) contains errors that
                                                      This paragraph provides credit for actions                                                                  may prove to be misleading and are in
                                                    required by paragraph (g) of this AD, if those                                                                need of clarification.
                                                    actions were performed before the effective             DEPARTMENT OF THE TREASURY
                                                                                                                                                                  Correction of Publication
                                                    date of this AD using Airbus Service Bulletin
                                                    A320–71–1068, dated December 18, 2015,                  Internal Revenue Service                                 Accordingly, the notice of proposed
                                                    which is not incorporated by reference in this                                                                rulemaking and notice of public hearing
                                                    AD.                                                     26 CFR Parts 1 and 301                                (REG–131418–14) that are subject to FR
                                                    (n) Other FAA AD Provisions                                                                                   Doc. 2016–18032 are corrected as
                                                                                                            [REG–131418–14]                                       follows:
                                                       The following provisions also apply to this
                                                    AD:                                                                                                           ■ 1. On page 50662, in the preamble,
                                                       (1) Alternative Methods of Compliance                RIN 1545–BN27                                         second column, the third line from the
                                                    (AMOCs): The Manager, International                                                                           bottom of the first full paragraph, the
                                                    Branch, ANM–116, Transport Airplane                     Reporting for Qualified Tuition and
                                                                                                                                                                  language ‘‘requiring eligible educational
                                                    Directorate, FAA, has the authority to                  Related Expenses; Education Tax
                                                                                                                                                                  institution’’ is corrected to read
                                                    approve AMOCs for this AD, if requested                 Credits; Correction
                                                    using the procedures found in 14 CFR 39.19.
                                                                                                                                                                  ‘‘requiring eligible educational
                                                    In accordance with 14 CFR 39.19, send your              AGENCY:  Internal Revenue Service (IRS),              institutions’’.
                                                    request to your principal inspector or local            Treasury.
                                                                                                                                                                  § 1.25A–0    [Corrected]
                                                    Flight Standards District Office, as                    ACTION: Correction to a notice of
                                                    appropriate. If sending information directly                                                                  ■  2. On page 50664, second column,
                                                                                                            proposed rulemaking and notice of
                                                    to the International Branch, send it to ATTN:                                                                 amendatory instruction 2, the language
                                                                                                            public hearing.
                                                    Sanjay Ralhan, Aerospace Engineer,                                                                            ‘‘9. Revising the entry for § 1.25A–
                                                    International Branch, ANM–116, Transport                SUMMARY:    This document contains                    2(f)(6).’’ is corrected to read ‘‘9. Revising
                                                    Airplane Directorate, FAA, 1601 Lind                                                                          the entry for § 1.25A–5(f)(6).’’.
                                                                                                            corrections to a notice of proposed
                                                    Avenue SW., Renton, WA 98057–3356;                                                                            ■ 3. On page 50664, third column, entry
                                                    telephone 425–227–1405; fax 425–227–1149.               rulemaking and notice of public hearing
                                                                                                            (REG–131418–14) that was published in                 for (e)(3), the language ‘‘Effective/
                                                    Information may be emailed to: 9-ANM-116-
                                                    AMOC-REQUESTS@faa.gov. Before using                     the Federal Register on Tuesday,                      applicability dates.’’ is corrected to read
                                                    any approved AMOC, notify your appropriate              August 2, 2016 (81 FR 50657). The                     ‘‘Applicability dates.’’.
                                                    principal inspector, or lacking a principal             proposed regulations that revise the                  ■ 4. On page 50664, third column, entry
                                                    inspector, the manager of the local flight              rules for reporting qualified tuition and             for (f)(4), the language ‘‘Effective/
                                                    standards district office/certificate holding           related expenses under section 6050S                  applicability date.’’ is corrected to read
                                                    district office. The AMOC approval letter               on a Form 1098–T, ‘‘Tuition Statement,’’              ‘‘Applicability date.’’.
                                                    must specifically reference this AD.                                                                          ■ 5. On page 50664, third column, entry
                                                                                                            and conforms the regulations to the
                                                       (2) Contacting the Manufacturer: For any
                                                                                                            changes made to section 6050S by the                  for (e), the language ‘‘Effective/
                                                    requirement in this AD to obtain corrective
                                                    actions from a manufacturer, the action must            Protecting Americans from Tax Hikes                   applicability date.’’ is corrected to read
                                                    be accomplished using a method approved                 Act of 2015.                                          ‘‘Applicability date.’’.
                                                    by the Manager, International Branch, ANM–              DATES: Written or electronic comments                 ■ 6. On page 50664, third column, entry
                                                    116, Transport Airplane Directorate, FAA; or            and request for a public hearing for the              for (g), the language ‘‘Effective/
                                                    the EASA; or Airbus’s EASA DOA. If                      notice of proposed rulemaking at 81 FR                applicability date.’’ is corrected to read
                                                    approved by the DOA, the approval must                                                                        ‘‘Applicability date.’’.
                                                                                                            50657, August 2, 2016, are still being
                                                    include the DOA-authorized signature.
                                                                                                            accepted and must be received by                      § 1.6050S–0       [Corrected]
                                                    (o) Related Information                                 October 31, 2016.
                                                                                                                                                                  ■  7. On page 50667, second column,
                                                       (1) Refer to Mandatory Continuing                    FOR FURTHER INFORMATION CONTACT:
                                                    Airworthiness Information (MCAI) EASA
                                                                                                                                                                  entry for (c)(1)(iii)(E), the language
                                                                                                            Concerning the proposed regulations,                  ‘‘consequences of refunds,
                                                    Airworthiness Directive 2016–0069, dated                Gerald Semasek of the Office of
                                                    April 11, 2016, for related information. This                                                                 reimbursements.’’ is corrected to read
                                                                                                            Associate Chief Counsel (Procedure and                ‘‘consequences of refunds,
                                                    MCAI may be found in the AD docket on the
                                                    Internet at http://www.regulations.gov by               Administration) for the proposed                      reimbursements,’’.
                                                    searching for and locating Docket No. FAA–              regulations under sections 6050S and
                                                    2016–9074.                                              6724, (202) 317–6845, and Sheldon                     § 1.6050S–1       [Corrected]
                                                       (2) For service information identified in            Iskow of the Office of Associate Chief                ■ 8. On page 50669, third column, in the
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                                                    this AD, contact Airbus, Airworthiness                  Counsel (Income Tax and Accounting)                   second line of paragraph (b)(2)(vii),
                                                    Office—EIAS, 1 Rond Point Maurice                       for the proposed regulations under                    Example 5. (i), the language, ‘‘2016 fall
                                                    Bellonte, 31707 Blagnac Cedex, France;                  section 25A, (202) 317–4718;                          semester’’ is corrected to read ‘‘Z as a
                                                    telephone +33 5 61 93 36 96; fax +33 5 61               concerning the submission of comments
                                                    93 44 51; email account.airworth-eas@                                                                         full-time student for the 2016 fall
                                                                                                            and requests for a public hearing,                    semester’’; and in the tenth the
                                                    airbus.com; Internet http://www.airbus.com.
                                                    You may view this service information at the            Regina Johnson, (202) 317–6901 (not                   language, ‘‘$11,000 for the 2017 spring
                                                    FAA, Transport Airplane Directorate, 1601               toll-free calls).                                     semesters.’’ is corrected to read ’’
                                                    Lind Avenue SW., Renton, WA. For                        SUPPLEMENTARY INFORMATION:                            $11,000 for the 2017 spring semester.’’.


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Document Created: 2018-02-09 13:23:00
Document Modified: 2018-02-09 13:23:00
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 November 10, 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 65980 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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