[Federal Register Volume 86, Number 68 (Monday, April 12, 2021)]
[Rules and Regulations]
[Pages 18883-18887]
[FR Doc No: 2021-07536]

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Rules and Regulations
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains regulatory documents
having general applicability and legal effect, most of which are keyed
to and codified in the Code of Federal Regulations, which is published
under 50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by the Superintendent of Documents.

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Federal Register / Vol. 86, No. 68 / Monday, April 12, 2021 / Rules
and Regulations

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2021-0268; Project Identifier MCAI-2020-01382-T;
Amendment 39-21505; AD 2021-08-11]
RIN 2120-AA64

Airworthiness Directives; Bombardier, Inc., Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

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

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes.
This AD was prompted by reports of one or both roll control input
modules (RCIMs) being incorrectly installed. This AD requires revising
the existing maintenance or inspection program, as applicable, to
incorporate certain aircraft maintenance manual (AMM) tasks. The FAA is
issuing this AD to address the unsafe condition on these products.

DATES: This AD becomes effective April 27, 2021.
    The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of April 27,
2021.
    The FAA must receive comments on this AD by May 27, 2021.

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 https://www.regulations.gov. Follow the instructions for submitting comments.
     Fax:<PHONE_NUMBER>.
     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 final rule, contact
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec
H4S 1Y9, Canada; telephone<PHONE_NUMBER>; fax<PHONE_NUMBER>; email
<EMAIL_ADDRESS>internet https://www.bombardier.com. You
may view this referenced service information at the FAA, Airworthiness
Products Section, Operational Safety Branch, 2200 South 216th St., Des
Moines, WA. For information on the availability of this material at the
FAA, call<PHONE_NUMBER>. It is also available at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-
0268.

Examining the AD Docket

    You may examine the AD docket at https://www.regulations.gov by
searching for and locating Docket No. FAA-2021-0268; or in person at
the Docket Operations office between 9 a.m. and 5 p.m., Monday through
Friday, except Federal holidays. The AD docket contains this AD, any
comments received, and other information. The street address for the
Docket Operations office is listed above.

FOR FURTHER INFORMATION CONTACT: Darren Gassetto, Aerospace Engineer,
Mechanical Systems and Administrative Services Section, FAA, New York
ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone<PHONE_NUMBER>; fax<PHONE_NUMBER>; email<EMAIL_ADDRESS>
SUPPLEMENTARY INFORMATION:

Background

    Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued TCCA AD CF-2020-35, dated October 7,
2020 (referred to after this as the Mandatory Continuing Airworthiness
Information, or the MCAI), to correct an unsafe condition for certain
Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes. You may
examine the MCAI at https://www.regulations.gov by searching for and
locating Docket No. FAA-2021-0268.
    This AD was prompted by reports of one or both RCIMs being
incorrectly installed. An investigation determined that it is
physically possible for an RCIM to be installed and zeroed at 180
degrees from its intended orientation. One in-service report involved a
near-accident with damage incurred on the airplane at landing. The FAA
is issuing this AD to prevent incorrect installation of one or both
RCIMs, which results in a misrigging condition, causing the multi-
function spoilers to deploy opposite to the roll command, and could
lead to loss of control of the airplane. See the MCAI for additional
background information.

Related Service Information Under 1 CFR Part 51

    Bombardier has issued the following service information. This
service information describes procedures for properly installing and
maintaining the RCIMs. These documents are distinct since they apply to
different airplane configurations.
     Tasks 27-11-13-400-801, ``Installation of the Roll Control
Input-Module'' (including Figure 401, ``Roll Control Input-Module--
Removal/Installation''), 27-11-13-720-801, ``Functional Test of the
Roll Control Input-Module,'' and 27-11-13-820-801, ``Adjustment of the
Roll Control Input-Module,'' of Subject 27-11-13, ``Roll Control Input-
Module,'' of Chapter 27, ``Flight Controls,'' in Part II of the
Bombardier Global Express Aircraft Maintenance Manual, Publication No.
BD-700 AMM, Revision 89, dated February 22, 2021. (For obtaining the
tasks for Bombardier Global Express Aircraft Maintenance Manual,
Publication No. BD-700 AMM, use Document Identification No. GL 700
AMM.)
     Tasks 27-11-13-400-801, ``Installation of the Roll Control
Input-Module'' (including Figure 401, ``Roll Control Input-Module--
Removal/Installation''), 27-11-13-720-801, ``Functional Test of the
Roll Control Input-Module,'' and 27-11-13-820-801, ``Adjustment of the
Roll Control Input-Module,'' of Subject 27-11-13, ``Roll Control Input-
Module,'' of Chapter 27, ``Flight Controls,'' in Part II of the
Bombardier Global 5000 Aircraft Maintenance Manual, Publication No. BD-
700 AMM, Revision 70, dated February 22, 2021. (For obtaining the tasks
for Bombardier Global 5000 Aircraft Maintenance Manual, Publication No.
BD-700 AMM, use

Document Identification No. GL 5000 AMM.)
     Tasks 27-11-13-400-801, ``Installation of the Roll Control
Input-Module'' (including Figure 401, ``Roll Control Input-Module--
Removal/Installation''), 27-11-13-720-801, ``Functional Test of the
Roll Control Input-Module,'' and 27-11-13-820-801, ``Adjustment of the
Roll Control Input-Module,'' of Subject 27-11-13, ``Roll Control Input-
Module,'' of Chapter 27, ``Flight Controls,'' in Part II of the
Bombardier Global 5000 Featuring Global Vision Flight Deck Aircraft
Maintenance Manual, Publication No. GL 5000 GVFD AMM, Revision 37,
dated February 22, 2021.
     Tasks 27-11-13-400-801, ``Installation of the Roll Control
Input-Module'' (including Figure 401, ``Roll Control Input-Module--
Removal/Installation''), 27-11-13-720-801, ``Functional Test of the
Roll Control Input-Module,'' and 27-11-13-820-801, ``Adjustment of the
Roll Control Input-Module,'' of Subject 27-11-13, ``Roll Control Input-
Module,'' of Chapter 27, ``Flight Controls,'' in Part II of the Global
5500 Aircraft Maintenance Manual, Publication No. GL 5500 AMM, Revision
6, dated February 22, 2021.
     Tasks 27-11-13-400-801, ``Installation of the Roll Control
Input-Module'' (including Figure 401, ``Roll Control Input-Module--
Removal/Installation''), 27-11-13-720-801, ``Functional Test of the
Roll Control Input-Module,'' and 27-11-13-820-801, ``Adjustment of the
Roll Control Input-Module,'' of Subject 27-11-13, ``Roll Control Input-
Module,'' of Chapter 27, ``Flight Controls,'' in Part II of the
Bombardier Global 6000 Aircraft Maintenance Manual, Publication No. GL
6000 AMM, Revision 38, dated February 22, 2021.
     Tasks 27-11-13-400-801, ``Installation of the Roll Control
Input-Module'' (including Figure 401, ``Roll Control Input-Module--
Removal/Installation''), 27-11-13-720-801, ``Functional Test of the
Roll Control Input-Module,'' and 27-11-13-820-801, ``Adjustment of the
Roll Control Input-Module,'' of Subject 27-11-13, ``Roll Control Input-
Module,'' of Chapter 27, ``Flight Controls,'' in Part II of the
Bombardier Global 6500 Aircraft Maintenance Manual, Publication No. GL
6500 AMM, Revision 7, dated February 22, 2021.
     Tasks 27-11-13-400-801, ``Installation of the Roll Control
Input-Module'' (including Figure 401, ``Roll Control Input-Module--
Removal/Installation''), 27-11-13-720-801, ``Functional Test of the
Roll Control Input-Module,'' and 27-11-13-820-801, ``Adjustment of the
Roll Control Input-Module,'' of Subject 27-11-13, ``Roll Control Input-
Module,'' of Chapter 27, ``Flight Controls,'' in Part II of the
Bombardier Global Express XRS Aircraft Maintenance Manual, Publication
No. BD-700 XRS AMM, Revision 67, dated February 22, 2021. (For
obtaining the tasks for Bombardier Global Express XRS Aircraft
Maintenance Manual, Publication No. BD-700 XRS AMM, use Document
Identification No. GL XRS AMM.)
    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

    This product has been approved by the aviation authority of another
country, and is approved for operation in the United States. Pursuant
to the FAA's bilateral agreement with the State of Design Authority,
the FAA has been notified of the unsafe condition described in the MCAI
and service information referenced above. The FAA is issuing this AD
because the FAA evaluated all pertinent information and determined the
unsafe condition exists and is likely to exist or develop on other
products of the same type design.

Requirements of This AD

    This AD requires revising the existing maintenance or inspection
program, as applicable, to incorporate certain AMM tasks.

Justification for Immediate Adoption and Determination of the Effective
Date

    Section 553(b)(3)(B) of the Administrative Procedure Act (APA) (5
U.S.C. 551 et seq.) authorizes agencies to dispense with notice and
comment procedures for rules when the agency, for ``good cause,'' finds
that those procedures are ``impracticable, unnecessary, or contrary to
the public interest.'' Under this section, an agency, upon finding good
cause, may issue a final rule without providing notice and seeking
comment prior to issuance. Further, section 553(d) of the APA
authorizes agencies to make rules effective in less than thirty days,
upon a finding of good cause.
    An unsafe condition exists that requires the immediate adoption of
this AD without providing an opportunity for public comments prior to
adoption. The FAA has found that the risk to the flying public
justifies forgoing notice and comment prior to adoption of this rule
because incorrect installation of one or both RCIMs results in a
misrigging condition, causing the multi-function spoilers to deploy
opposite to the roll command, and could lead to loss of control of the
airplane. Accordingly, notice and opportunity for prior public comment
are impracticable and contrary to the public interest pursuant to 5
U.S.C. 553(b)(3)(B).
    In addition, the FAA finds that good cause exists pursuant to 5
U.S.C. 553(d) for making this amendment effective in less than 30 days,
for the same reasons the FAA found good cause to forgo notice and
comment.

Comments Invited

    The FAA invites you to send any written relevant data, views, or
arguments about this AD. Send your comments to an address listed under
ADDRESSES. Include ``Docket No. FAA-2021-0268; Project Identifier MCAI-
2020-01382-T'' at the beginning of your comments. The most helpful
comments reference a specific portion of the final rule, explain the
reason for any recommended change, and include supporting data. The FAA
will consider all comments received by the closing date and may amend
this final rule because of those comments.
    Except for Confidential Business Information (CBI) as described in
the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to
https://www.regulations.gov, including any personal information you
provide. The agency will also post a report summarizing each
substantive verbal contact received about this final rule.

Confidential Business Information

    CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this AD contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this AD, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this AD. Submissions containing CBI should be sent to Darren
Gassetto, Aerospace Engineer, Mechanical Systems and Administrative
Services Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite
410, Westbury, NY 11590; telephone<PHONE_NUMBER>; fax<PHONE_NUMBER>;
email

<EMAIL_ADDRESS>Any commentary that the FAA receives which is
not specifically designated as CBI will be placed in the public docket
for this rulemaking.

Regulatory Flexibility Act (RFA)

    The requirements of the RFA do not apply when an agency finds good
cause pursuant to 5 U.S.C. 553 to adopt a rule without prior notice and
comment. Because the FAA has determined that it has good cause to adopt
this rule without notice and comment, RFA analysis is not required.

Costs of Compliance

    The FAA estimates that this AD affects 397 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
    The FAA has determined that revising the maintenance or inspection
program takes an average of 90 work-hours per operator, although the
agency recognizes that this number may vary from operator to operator.
Since operators incorporate maintenance or inspection program changes
for their affected fleet(s), the FAA has determined that a per-operator
estimate is more accurate than a per-airplane estimate. Therefore, the
agency estimates the average total cost per operator to be $7,650 (90
work-hours x $85 per work-hour).

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.
    The FAA is 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

    The FAA determined that this AD will not have federalism
implications under Executive Order 13132. This AD will not have a
substantial direct effect on the States, on the relationship between
the national government and the States, or on the distribution of power
and responsibilities among the various levels of government.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive
Order 12866, and
    (2) Will not affect intrastate aviation in Alaska.

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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

Sec.  39.13  [Amended]

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

2021-08-11 Bombardier, Inc.: Amendment 39-21505; Docket No. FAA-
2021-0268; Project Identifier MCAI-2020-01382-T.

(a) Effective Date

    This airworthiness directive (AD) becomes effective April 27,
2021.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc., Model BD-700-1A10 and BD-
700-1A11 airplanes, certificated in any category, having serial
numbers 9002 through 9998 inclusive, 60005 through 60007 inclusive,
60013, and 60015 through 60019 inclusive.

(d) Subject

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

(e) Reason

    This AD was prompted by reports of one or both roll control
input modules (RCIMs) being incorrectly installed. The FAA is
issuing this AD to address incorrect installation of one or both
RCIMs, which results in a misrigging condition, causing the multi-
function spoilers to deploy opposite to the roll command, and could
lead to loss of control of the airplane.

(f) Compliance

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

(g) Maintenance or Inspection Program Revision

    Within 10 days after the effective date of this AD, revise the
existing maintenance or inspection program, as applicable, to
incorporate the information in Tasks 27-11-13-400-801,
``Installation of the Roll Control Input-Module'' (including Figure
401, ``Roll Control Input-Module--Removal/Installation''), 27-11-13-
720-801, ``Functional Test of the Roll Control Input-Module,'' and
27-11-13-820-801, ``Adjustment of the Roll Control Input-Module,''
of Subject 27-11-13, ``Roll Control Input-Module,'' of Chapter 27,
``Flight Controls,'' in Part II of the applicable document specified
in paragraphs (g)(1) through (7) of this AD.
    (1) Bombardier Global Express Aircraft Maintenance Manual,
Publication No. BD-700 AMM, Revision 89, dated February 22, 2021.

    Note 1 to paragraph (g)(1):  For obtaining the tasks for
Bombardier Global Express Aircraft Maintenance Manual, Publication
No. BD-700 AMM, use Document Identification No. GL 700 AMM.

    (2) Bombardier Global 5000 Aircraft Maintenance Manual,
Publication No. BD-700 AMM, Revision 70, dated February 22, 2021.

    Note 2 to paragraph (g)(2):  For obtaining the tasks for
Bombardier Global 5000 Aircraft Maintenance Manual, Publication No.
BD-700 AMM, use Document Identification No. GL 5000 AMM.

    (3) Bombardier Global 5000 Featuring Global Vision Flight Deck
Aircraft Maintenance Manual, Publication No. GL 5000 GVFD AMM,
Revision 37, dated February 22, 2021.
    (4) Bombardier Global 5500 Aircraft Maintenance Manual,
Publication No. GL 5500 AMM, Revision 6, dated February 22, 2021.
    (5) Bombardier Global 6000 Aircraft Maintenance Manual,
Publication No. GL 6000 AMM, Revision 38, dated February 22, 2021.
    (6) Bombardier Global 6500 Aircraft Maintenance Manual,
Publication No. GL 6500 AMM, Revision 7, dated February 22, 2021.
    (7) Bombardier Global Express XRS Aircraft Maintenance Manual,
Publication No. BD-700 XRS AMM, Revision 67, dated February 22,
2021.

    Note 3 to paragraph (g)(7): For obtaining the tasks for
Bombardier Global Express XRS Aircraft Maintenance Manual,
Publication No. BD-700 XRS AMM, use Document Identification No. GL
XRS AMM.

(h) Maintenance Prohibition

    As of the effective date of this AD, no person may perform
maintenance on any RCIM using a version of Task 27-11-13-400-801,
``Installation of the Roll Control Input-Module'' (including Figure
401, ``Roll Control Input-Module--Removal/Installation''), 27-11-13-
720-801, ``Function Test of the Roll Control Input-Module,'' or 27-
11-13-820-801, ``Adjustment of the Roll Control Input-Module,''
dated before February 21, 2020.

(i) Credit for Previous Actions

    This paragraph provides credit for the actions required by
paragraph (g) of this AD, if those actions were performed before the
effective date of this AD using Tasks 27-11-13-400-801,
``Installation of the Roll Control Input-Module,'' 27-11-13-720-801,
``Functional Test of the Roll Control Input-Module,'' and 27-11-13-
820-801, ``Adjustment of the Roll Control Input-Module,'' of Subject
27-11-13, ``Roll Control Input-Module,'' of Chapter 27, ``Flight
Controls,'' in Part II of the applicable service information
specified in paragraphs (i)(1) through (30) of this AD.
    (1) Bombardier Global Express Aircraft Maintenance Manual,
Publication No. BD-700 AMM, Revision 85, dated February 21, 2020.

    Note 4 to paragraph (i)(1): For obtaining the tasks for
Bombardier Global Express Aircraft Maintenance Manual, Publication
No. BD-700 AMM, use Document Identification No. GL 700 AMM.

    (2) Bombardier Global Express Aircraft Maintenance Manual,
Publication No. BD-700 AMM, Revision 86, dated May 21, 2020.
    (3) Bombardier Global Express Aircraft Maintenance Manual,
Publication No. BD-700 AMM, Revision 87, dated August 17, 2020.
    (4) Bombardier Global Express Aircraft Maintenance Manual,
Publication No. BD-700 AMM, Revision 88, dated November 11, 2020.
    (5) Bombardier Global 5000 Aircraft Maintenance Manual,
Publication No. BD-700 AMM, Revision 66, dated February 21, 2020.

    Note 5 to paragraph (i)(5): For obtaining the tasks for
Bombardier Global 5000 Aircraft Maintenance Manual, Publication No.
BD-700 AMM, use Document Identification No. GL 5000 AMM.

    (6) Bombardier Global 5000 Aircraft Maintenance Manual,
Publication No. BD-700 AMM, Revision 67, dated May 21, 2020.
    (7) Bombardier Global 5000 Aircraft Maintenance Manual,
Publication No. BD-700 AMM, Revision 68, dated August 17, 2020.
    (8) Bombardier Global 5000 Aircraft Maintenance Manual,
Publication No. BD-700 AMM, Revision 69, dated November 11, 2020.
    (9) Bombardier Global 5000 Featuring Global Vision Flight Deck
Aircraft Maintenance Manual, Publication No. GL 5000 GVFD AMM,
Revision 33, dated February 21, 2020.
    (10) Bombardier Global 5000 Featuring Global Vision Flight Deck
Aircraft Maintenance Manual, Publication No. GL 5000 GVFD AMM,
Revision 34, dated May 21, 2020.
    (11) Bombardier Global 5000 Featuring Global Vision Flight Deck
Aircraft Maintenance Manual, Publication No. GL 5000 GVFD AMM,
Revision 35, dated August 17, 2020.
    (12) Bombardier Global 5000 Featuring Global Vision Flight Deck
Aircraft Maintenance Manual, Publication No. GL 5000 GVFD AMM,
Revision 36, dated November 11, 2020.
    (13) Bombardier Global 5500 Aircraft Maintenance Manual,
Publication No. GL 5500 AMM, Revision 2, dated February 21, 2020.
    (14) Bombardier Global 5500 Aircraft Maintenance Manual,
Publication No. GL 5500 AMM, Revision 3, dated May 21, 2020.
    (15) Bombardier Global 5500 Aircraft Maintenance Manual,
Publication No. GL 5500 AMM, Revision 4, dated August 17, 2020.
    (16) Bombardier Global 5500 Aircraft Maintenance Manual,
Publication No. GL 5500 AMM, Revision 5, dated November 11, 2020.
    (17) Bombardier Global 6000 Aircraft Maintenance Manual,
Publication No. GL 6000 AMM, Revision 33, dated February 21, 2020.
    (18) Bombardier Global 6000 Aircraft Maintenance Manual,
Publication No. GL 6000 AMM, Revision 34, dated May 21, 2020.
    (19) Bombardier Global 6000 Aircraft Maintenance Manual,
Publication No. GL 6000 AMM, Revision 35, dated August 17, 2020.
    (20) Bombardier Global 6000 Aircraft Maintenance Manual,
Publication No. GL 6000 AMM, Revision 36, dated August 26, 2020.
    (21) Bombardier Global 6000 Aircraft Maintenance Manual,
Publication No. GL 6000 AMM, Revision 37, dated November 11, 2020.
    (22) Bombardier Global 6500 Aircraft Maintenance Manual,
Publication No. GL 6500 AMM, Revision 2, dated February 21, 2020.
    (23) Bombardier Global 6500 Aircraft Maintenance Manual,
Publication No. GL 6500 AMM, Revision 3, dated May 21, 2020.
    (24) Bombardier Global 6500 Aircraft Maintenance Manual,
Publication No. GL 6500 AMM, Revision 4, dated August 17, 2020.
    (25) Bombardier Global 6500 Aircraft Maintenance Manual,
Publication No. GL 6500 AMM, Revision 5, dated August 26, 2020.
    (26) Bombardier Global 6500 Aircraft Maintenance Manual,
Publication No. GL 6500 AMM, Revision 6, dated November 11, 2020.
    (27) Bombardier Global Express XRS Aircraft Maintenance Manual,
Publication No. BD-700 XRS AMM, Revision 63, dated February 21,
2020.

    Note 6 to paragraph (i)(27): For obtaining the tasks for
Bombardier Global Express XRS Aircraft Maintenance Manual,
Publication No. BD-700 XRS AMM, use Document Identification No. GL
XRS AMM.

    (28) Bombardier Global Express XRS Aircraft Maintenance Manual,
Publication No. BD-700 XRS AMM, Revision 64, dated May 21, 2020.
    (29) Bombardier Global Express XRS Aircraft Maintenance Manual,
Publication No. BD-700 XRS AMM, Revision 65, dated August 17, 2020.
    (30) Bombardier Global Express XRS Aircraft Maintenance Manual,
Publication No. BD-700 XRS AMM, Revision 66, dated November 11,
2020.

(j) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New
York ACO Branch, FAA, has the authority to approve AMOCs for this
AD, if requested using the procedures found in 14 CFR 39.19. In
accordance with 14 CFR 39.19, send your request to your responsible
Flight Standards Office, as appropriate. If sending information
directly to the manager of the certification office, send it to
ATTN: Program Manager, Continuing Operational Safety, FAA, New York
ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone<PHONE_NUMBER>; fax<PHONE_NUMBER>. Before using any approved
AMOC, notify your appropriate principal inspector, or lacking a
principal inspector, the manager of the responsible Flight Standards
Office.
    (2) Contacting the Manufacturer: For any requirement in this AD
to obtain instructions from a manufacturer, the instructions must be
accomplished using a method approved by the Manager, New York ACO
Branch, FAA; or Transport Canada Civil Aviation (TCCA); or
Bombardier, Inc.'s TCCA Design Approval Organization (DAO). If
approved by the DAO, the approval must include the DAO-authorized
signature.

(k) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information
(MCAI) TCCA AD CF-2020-35, dated October 7, 2020, for related
information. This MCAI may be found in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-
2021-0268.
    (2) For more information about this AD, contact Darren Gassetto,
Aerospace Engineer, Mechanical Systems and Administrative Services
Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone<PHONE_NUMBER>; fax<PHONE_NUMBER>; email
<EMAIL_ADDRESS>    (3) Service information identified in this AD that is not
incorporated by reference is available at the addresses specified in
paragraphs (l)(3) and (4) of this AD.

(l) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do
the actions required by this AD, unless this AD specifies otherwise.
    (i) Bombardier Global Express Aircraft Maintenance Manual, Part
II, Publication No. BD-700 AMM, Revision 89, dated February 22,
2021, Chapter 27, ``Flight Controls,'' Subject 27-11-13, ``Roll
Control Input-Module'':
    (A) Task 27-11-13-400-801, ``Installation of the Roll Control
Input-Module'' (including Figure 401, ``Roll Control Input-Module--
Removal/Installation'');
    (B) Task 27-11-13-720-801, ``Functional Test of the Roll Control
Input-Module''; and
    (C) Task 27-11-13-820-801, ``Adjustment of the Roll Control
Input-Module.''

    (ii) Bombardier Global 5000 Aircraft Maintenance Manual, Part
II, Publication No. BD-700 AMM, Revision 70, dated February 22,
2021, Chapter 27, ``Flight Controls,'' Subject 27-11-13, ``Roll
Control Input-Module'':
    (A) Task 27-11-13-400-801, ``Installation of the Roll Control
Input-Module'' (including Figure 401, ``Roll Control Input-Module--
Removal/Installation'');
    (B) Task 27-11-13-720-801, ``Functional Test of the Roll Control
Input-Module''; and
    (C) Task 27-11-13-820-801, ``Adjustment of the Roll Control
Input-Module.''
    (iii) Bombardier Global 5000 Featuring Global Vision Flight Deck
Aircraft Maintenance Manual, Part II, Publication No. GL 5000 GVFD
AMM, Revision 37, dated February 22, 2021, Chapter 27, ``Flight
Controls,'' Subject 27-11-13, ``Roll Control Input-Module'':
    (A) Task 27-11-13-400-801, ``Installation of the Roll Control
Input-Module'' (including Figure 401, ``Roll Control Input-Module--
Removal/Installation'');
    (B) Task 27-11-13-720-801, ``Functional Test of the Roll Control
Input-Module''; and
    (C) Task 27-11-13-820-801, ``Adjustment of the Roll Control
Input-Module.''
    (iv) Bombardier Global 5500 Aircraft Maintenance Manual, Part
II, Publication No. GL 5500 AMM, Revision 6, dated February 22,
2021, Chapter 27, ``Flight Controls,'' Subject 27-11-13, ``Roll
Control Input-Module'':
    (A) Task 27-11-13-400-801, ``Installation of the Roll Control
Input-Module'' (including Figure 401, ``Roll Control Input-Module--
Removal/Installation'');
    (B) Task 27-11-13-720-801, ``Functional Test of the Roll Control
Input-Module''; and
    (C) Task 27-11-13-820-801, ``Adjustment of the Roll Control
Input-Module.''
    (v) Bombardier Global 6000 Aircraft Maintenance Manual, Part II,
Publication No. GL 6000 AMM, Revision 38, dated February 22, 2021,
Chapter 27, ``Flight Controls,'' Subject 27-11-13, ``Roll Control
Input-Module'':
    (A) Task 27-11-13-400-801, ``Installation of the Roll Control
Input-Module'' (including Figure 401, ``Roll Control Input-Module--
Removal/Installation'');
    (B) Task 27-11-13-720-801, ``Functional Test of the Roll Control
Input-Module''; and
    (C) Task 27-11-13-820-801, ``Adjustment of the Roll Control
Input-Module.''
    (vi) Bombardier Global 6500 Aircraft Maintenance Manual, Part
II, Publication No. GL 6500 AMM, Revision 7, dated February 22,
2021, Chapter 27, ``Flight Controls,'' Subject 27-11-13, ``Roll
Control Input-Module'':
    (A) Task 27-11-13-400-801, ``Installation of the Roll Control
Input-Module'' (including Figure 401, ``Roll Control Input-Module--
Removal/Installation'');
    (B) Task 27-11-13-720-801, ``Functional Test of the Roll Control
Input-Module''; and
    (C) Task 27-11-13-820-801, ``Adjustment of the Roll Control
Input-Module.''
    (vii) Bombardier Global Express XRS Aircraft Maintenance Manual,
Part II, Publication No. BD-700 XRS AMM, Revision 67, dated February
22, 2021, Chapter 27, ``Flight Controls,'' Subject 27-11-13, ``Roll
Control Input-Module'':
    (A) Task 27-11-13-400-801, ``Installation of the Roll Control
Input-Module'' (including Figure 401, ``Roll Control Input-Module-
Removal/Installation'');
    (B) Task 27-11-13-720-801, ``Functional Test of the Roll Control
Input-Module''; and
    (C) Task 27-11-13-820-801, ``Adjustment of the Roll Control
Input-Module.''
    (3) For service information identified in this AD, contact
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval,
Qu[eacute]bec H4S 1Y9, Canada; telephone<PHONE_NUMBER>; fax 514-855-
7401; email<EMAIL_ADDRESS>internet https://www.bombardier.com.

    Note 7 to paragraph (l)(3): For obtaining the tasks for
Bombardier Global Express Aircraft Maintenance Manual, Publication
No. BD-700 AMM, use Document Identification No. GL 700 AMM.

    Note 8 to paragraph (l)(3): For obtaining the tasks for
Bombardier Global 5000 Aircraft Maintenance Manual, Publication No.
BD-700 AMM, use Document Identification No. GL 5000 AMM.

    Note 9 to paragraph (l)(3): For obtaining the tasks for
Bombardier Global Express XRS Aircraft Maintenance Manual,
Publication No. BD-700 XRS AMM, use Document Identification No. GL
XRS AMM.

    (4) You may view this service information at the FAA,
Airworthiness Products Section, Operational Safety Branch, 2200
South 216th St., Des Moines, WA. For information on the availability
of this material at the FAA, call<PHONE_NUMBER>.
    (5) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, email<EMAIL_ADDRESS>or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued on April 2, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2021-07536 Filed 4-8-21; 11:15 am]
BILLING CODE 4910-13-P


[Federal Register Volume 86, Number 32 (Friday, February 19, 2021)]
[Notices]
[Pages 10267-10269]
[FR Doc No: 2021-03383]

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ENVIRONMENTAL PROTECTION AGENCY

[EPA-HQ-OPPT-2020-0738; FRL-10019-82]

Chemical Category for Octahydro-Tetramethyl-Naphthalenyl-Ethanone
(OTNE); Manufacturer Request for Risk Evaluation Under the Toxic
Substances Control Act (TSCA); Notice of Availability and Request for
Comments

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice.

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SUMMARY: The Environmental Protection Agency (EPA) is announcing the
availability of and soliciting public comment on a manufacturer request
for a risk evaluation under the Toxic Substances Control Act (TSCA) of
ethanone, 1-(1,2,3,4,5,6,7,8-octahydro-2,3,5,5-tetramethyl-2-
naphthalenyl), ethanone, 1-(1,2,3,4,5,6,7,8-octahydro-2,3,8,8-
tetramethyl-2-naphthalenyl), ethanone, 1-(1,2,3,4,6,7,8,8a-octahydro-
2,3,8,8-tetramethyl-2-naphthalenyl), and ethanone, 1-(1,2,3,5,6,7,8,8a-
octahydro-2,3,8,8-tetramethyl-2-naphthalenyl) (collectively, ``OTNE'').
The request was made by International Flavors and Fragrances, Inc.
(IFF), Privi Organics USA Corporation (Privi), and DRT America, Inc.
(DRT) through the OTNE Consortium. EPA conducts risk evaluations to
determine whether a chemical substance presents an unreasonable risk of
injury to health or the environment without consideration of costs or
other non-risk factors, including an unreasonable risk to potentially
exposed or susceptible subpopulations, under the conditions of use. In
the docket associated with this request is the manufacturer request for
an EPA-conducted risk evaluation and possible additional conditions of
use EPA has identified for inclusion within the scope of a risk
evaluation of OTNE. EPA specifically invites public comment on the
inclusion of any additional conditions of use and potentially exposed
or susceptible subpopulations. The Agency is in the process of broadly
re-examining how it intends to implement these and other provisions of
amended TSCA including determining how new executive orders and other
direction provided by the Biden-Harris Administration will be
addressed. This process would benefit greatly from stakeholder
feedback. After considering comments received in response to this
solicitation, EPA will determine whether to grant or deny the
manufacturer request. All TSCA risk evaluations, whether EPA-initiated
or manufacturer-requested, will be conducted in the same manner.

DATES: Comments must be received on or before April 5, 2021.

ADDRESSES: Submit your comments, identified by docket identification
(ID) number EPA-HQ-OPPT-2020-0738, through the Federal eRulemaking
Portal at http://www.regulations.gov. Follow the online instructions
for submitting comments. Do not submit electronically any information
you consider to be Confidential Business Information (CBI) or other
information whose disclosure is restricted by statute. To make special
arrangements for hand delivery or delivery of boxed information, please
follow the instructions at http://www.epa.gov/dockets/contacts.html.
    Please note that due to the public health emergency the EPA Docket
Center (EPA/DC) and Reading Room

were closed to public visitors on March 31, 2020. Our EPA/DC staff will
continue to provide customer service via email, phone, and webform. For
further information on EPA/DC services, docket contact information and
the current status of the EPA/DC and Reading Room, please visit https://www.epa.gov/dockets.

FOR FURTHER INFORMATION CONTACT: For technical information contact:
Jeffrey Putt, Existing Chemicals Risk Management Division (Mail Code
7404T), Office of Pollution Prevention and Toxics, Environmental
Protection Agency, 1200 Pennsylvania Ave. NW, Washington, DC 20460-
0001; telephone number:<PHONE_NUMBER>; email address:
<EMAIL_ADDRESS>    For general information contact: The TSCA-Hotline, ABVI-Goodwill,
422 South Clinton Ave., Rochester, NY 14620; telephone number: (202)
554-1404; email address<EMAIL_ADDRESS>
SUPPLEMENTARY INFORMATION:

I. General Information

A. Does this apply to me?

    This notice is directed to the public in general and may be of
interest to persons who currently or may manufacture (including
import), process, distribute, use, and/or dispose of OTNE. The action
may also be of interest to chemical processors, distributors in
commerce, and users; non-governmental organizations in the
environmental and public health sectors; state and local government
agencies; and members of the public. Since other entities may also be
interested in these risk evaluations, EPA has not attempted to describe
all the specific entities that may be affected by this action.

B. What is EPA's authority for taking this action?

    TSCA section 6(b) requires that EPA conduct risk evaluations on
existing chemical substances and identifies the minimum components EPA
must include in all chemical substance risk evaluations. 15 U.S.C.
2605(b). The risk evaluation must not consider costs or other non-risk
factors. 15 U.S.C. 2605(b)(4)(F)(iii). The specific risk evaluation
process is set out in 40 CFR part 702 and summarized on EPA's website
at https://www.epa.gov/assessing-and-managing-chemicals-under-tsca/risk-evaluations-existing-chemicals-under-tsca.
    TSCA section 6(b) also allows manufacturers of a chemical substance
to request an EPA-conducted risk evaluation on the chemical substance.
TSCA required EPA to develop the form and manner under which these
requests must be made, and the criteria for which EPA will determine
whether to grant a request. These requirements and criteria are set out
in 40 CFR 702.37.
    Under 40 CFR 702.37(e)(3), EPA is required to assess whether the
circumstances identified in a manufacturer request for a risk
evaluation constitute conditions of use (as defined under TSCA section
(3)(4) and implementing regulations at 40 CFR 702.33), and whether
those conditions of use warrant inclusion within the scope of a risk
evaluation for the chemical substance. EPA will also assess what, if
any, additional conditions of use warrant inclusion within the scope of
a risk evaluation for the chemical substance. EPA will conduct these
assessments based on the same considerations applied in the same manner
as it would for a risk evaluation in the EPA-initiated risk evaluation
process.
    No later than 60 business days after receiving a manufacturer
request for risk evaluation that EPA has determined to be facially
complete (meeting the criteria set forth in 40 CFR 702.37(e)(1)), EPA
is required to submit for publication the receipt of the request in the
Federal Register, open a public docket for the request (which must
contain the manufacturer request and EPA's possible additional
conditions of use), and provide no less than 45 calendar days for
public comment. This notice identifies the docket containing the
manufacturer request, EPA's possible additional conditions of use, and
the basis for including those possible additional conditions of use.
During the public comment period, the public may submit comments and
information relevant to the requested risk evaluation, as well as the
additional possible conditions of use EPA is including in the docket.
    After the comment period closes, the Agency has up to 60 days to
either grant or deny the request to conduct a risk evaluation under 40
CFR 702.37(e)(6). EPA will review the request along with any additional
information received during the comment period, and grant the request
if it determines the request meets all of the following requirements
listed under 40 CFR 702.37(e)(6)(ii):
    [ssquf] The circumstances identified in the request constitute
conditions of use that warrant inclusion in a risk evaluation for the
chemical substance;
    [ssquf] EPA has all the information needed to conduct such risk
evaluation on the conditions of use that were the subject of the
request; and
    [ssquf] All other criteria and requirements of 40 CFR 702.37 have
been met.

C. What action is EPA taking?

    EPA is announcing the availability of and soliciting public comment
on a manufacturer request for a risk evaluation of OTNE under TSCA
section 6(b) that is described in detail in Unit II. Also available in
the docket associated with this request are the manufacturer request
and possible additional conditions of use EPA identified for inclusion
in a risk evaluation of OTNE. This notice satisfies 40 CFR
702.37(e)(4).

D. What should I consider as I prepare my comments for EPA?

    1. Submitting CBI. Do not submit this information to EPA through
regulations.gov or email. Clearly mark the part or all of the
information that you claim to be CBI. For CBI information in a disk or
CD-ROM that you mail to EPA, mark the outside of the disk or CD-ROM as
CBI and then identify electronically within the disk or CD-ROM the
specific information that is claimed CBI. In addition to one complete
version of the comment that includes information claimed as CBI, a copy
of the comment that does not contain the information claimed as CBI
must be submitted for inclusion in the public docket. Information so
marked will not be disclosed except in accordance with procedures set
forth in 40 CFR part 2.
    2. Tips for preparing your comments. When preparing and submitting
your comments, see the commenting tips at http://www.epa.gov/dockets/comments.html.

II. Summary of This Manufacturer Request

    On November 20, 2020, EPA received a complete manufacturer request
for a TSCA risk evaluation of OTNE that was made by IFF, Privi, and
DRT, through the OTNE Consortium. After determining the request was
facially complete (i.e., EPA determined that the request appeared to be
consistent with the requirements in 40 CFR 702.37(b) through (d), such
as including all the necessary information in those paragraphs), EPA
notified the public of the receipt of the request on December 8, 2020
via a listserv announcement to stakeholders.

A. What is OTNE?

    OTNE is used as a fragrance ingredient. The four chemical
substances in this chemical category are listed on the TSCA Inventory
as: Ethanone, 1-(1,2,3,4,5,6,7,8-octahydro-

2,3,5,5-tetramethyl-2-naphthalenyl), ethanone, 1-(1,2,3,4,5,6,7,8-
octahydro-2,3,8,8-tetramethyl-2-naphthalenyl), ethanone, 1-
(1,2,3,4,6,7,8,8a-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl), and
ethanone, 1-(1,2,3,5,6,7,8,8a-octahydro-2,3,8,8-tetramethyl-2-
naphthalenyl). The associated Chemical Abstracts Service Registry
Numbers (CASRNs) are 54464-59-4, 54464-57-2, 68155-67-9, and 68155-66-
8, respectively. TSCA section 26(c) provides for EPA to take action on
a category of chemical substances whenever authorized or required by
TSCA to take action on a chemical substance. 15 U.S.C. 2625(c). EPA is
treating these four CASRNs (54464-59-4, 54464-57-2, 68155-67-9, and
68155-66-8) as a category of chemical substances for purposes of this
manufacturer-requested risk evaluation.

B. What are the conditions of use?

    The manufacturer request for a risk evaluation of OTNE identifying
conditions of use of interest to the manufacturer is included in docket
EPA-HQ-OPPT-2020-0738. Subject to further analysis and public comment,
EPA anticipates including activities identified in the request as
conditions of use in the risk evaluation of OTNE.
    EPA has identified additional conditions of use pursuant to 40 CFR
702.37(e)(3), which are also included in docket EPA-HQ-OPPT-2020-0738.

III. Request for Comment

    The docket associated with this request contains the manufacturer
request (excluding information claimed as CBI), EPA's possible
additional conditions of use as described 40 CFR 702.37(e)(3), and the
basis for these possible additions. During the comment period, the
public may submit comments and information relevant to the requested
risk evaluation; in particular, commenters are encouraged to identify
any information not included in the request that the commenters believe
would be needed to conduct a risk evaluation, and to provide any other
information relevant to EPA's possible additional conditions of use,
such as information on other conditions of use of the chemical
substances than those included in the request or in EPA's possible
additional conditions of use. 40 CFR 702.37(e)(4). In addition, at any
time prior to the end of the comment period, the requesting
manufacturer(s) may supplement the original request with any new
information it receives. 40 CFR 702.37(e)(5).

    Authority: 15 U.S.C. 2601 et seq.

Jane Nishida,
Acting Administrator.
[FR Doc. 2021-03383 Filed 2-18-21; 8:45 am]
BILLING CODE 6560-50-P


[Federal Register Volume 86, Number 73 (Monday, April 19, 2021)]
[Proposed Rules]
[Pages 20338-20341]
[FR Doc No: 2021-07666]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2021-0304; Project Identifier 2017-SW-108-AD]
RIN 2120-AA64

Airworthiness Directives; Leonardo S.p.a. (Type Certificates
Previously Held by Agusta S.p.A. and AgustaWestland S.p.A.) Helicopters

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for Leonardo S.p.a. (Type Certificate previously held by Agusta S.p.A.)
Model AB139 and AW139 helicopters and Leonardo S.p.a. (Type Certificate
previously held by AgustaWestland S.p.A.) Model AW189 helicopters. This
proposed AD was prompted by reports of missing lock wire and loose
fasteners. This proposed AD would require a one-time inspection of the
main rotor (M/R) slip ring and depending on the outcome, removing the
M/R slip ring from service, removing screws and washers from service,
applying torque, installing lock wire, and re-identifying the M/R slip
ring. This proposed AD would also prohibit the installation of certain
M/R slip rings. The FAA is proposing this AD to address the unsafe
condition on these products.

DATES: The FAA must receive comments on this proposed AD by June 3,
2021.

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 https://www.regulations.gov. Follow the instructions for submitting comments.
     Fax:<PHONE_NUMBER>.
     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 between 9 a.m. and
5 p.m., Monday through Friday, except Federal holidays.
    For Leonardo Helicopters and Moog service information identified in
this NPRM, contact Leonardo S.p.A. Helicopters, Emanuele Bufano, Head
of Airworthiness, Viale G.Agusta 520, 21017 C.Costa di Samarate (Va)
Italy; telephone +39-0331-225074; fax +39-0331-229046; or at https://www.leonardocompany.com/en/home. You may view this service information
at the FAA, Office of the Regional Counsel, Southwest Region, 10101
Hillwood Pkwy., Room 6N-321, Fort Worth, TX 76177. For information on
the availability of this material at the FAA, call<PHONE_NUMBER>.

Examining the AD Docket

    You may examine the AD docket at https://www.regulations.gov by
searching for and locating Docket No. FAA-2021-0304; or in person at
Docket Operations between 9 a.m. and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket contains this NPRM, the European
Aviation Safety Agency (now European Union Aviation Safety Agency)
(EASA) ADs, any comments received, and other information. The street
address for Docket Operations is listed above.

FOR FURTHER INFORMATION CONTACT: Steven Warwick, Aerospace Engineer,
Certification Section, Fort Worth ACO Branch, Compliance &
Airworthiness Division, 10101 Hillwood Pkwy., Fort Worth, TX 76177;
telephone<PHONE_NUMBER>; email<EMAIL_ADDRESS>
SUPPLEMENTARY INFORMATION:

Comments Invited

    The FAA invites you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under ADDRESSES. Include ``Docket No. FAA-2021-0304; Project Identifier
2017-SW-108-AD'' at the beginning of your comments. The most helpful
comments reference a specific portion of the proposal, explain the
reason for any recommended change, and include supporting data. The FAA
will consider all comments received by the closing date and may amend
this proposal because of those comments.
    Except for Confidential Business Information (CBI) as described in
the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to
https://www.regulations.gov, including any personal information you
provide. The agency will also post a report summarizing each
substantive verbal contact received about this NPRM.

Confidential Business Information

    CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this NPRM contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this NPRM, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this NPRM. Submissions containing CBI should be sent to
Steven Warwick, Aerospace Engineer, Certification Section, Fort Worth
ACO Branch, Compliance & Airworthiness Division, 10101 Hillwood Pkwy.,
Fort Worth, TX 76177; telephone<PHONE_NUMBER>; email
<EMAIL_ADDRESS>Any commentary that the FAA receives which is
not specifically designated as CBI will be placed in the public docket
for this rulemaking.

Background

    EASA, which is the Technical Agent for the Member States of the
European Union, has issued EASA AD 2017-0083, dated May 10, 2017 (EASA
AD 2017-0083), to correct an unsafe condition for Leonardo S.p.A.
(formerly Finmeccanica S.p.A, AgustaWestland S.p.A., Agusta S.p.A),
AgustaWestland Philadelphia Corporation (formerly Agusta Aerospace
Corporation) Model AB139 and AW139 helicopters, and EASA AD 2017-0087,
dated May 12, 2017 (EASA AD 2017-0087), to correct the same unsafe
condition for Leonardo S.p.A. Helicopters (formerly Finmeccanica S.p.A,
AgustaWestland S.p.A.) Model AW189 helicopters. EASA advises of reports
of missing lock wire and loose fasteners found during inspections of
the M/R slip ring of Model AW139 helicopters. EASA also advises that
the same part-numbered M/R slip ring may also be installed on Model
AW189 helicopters. Model AB139 helicopters may also be affected by this
unsafe condition due to having the same type design as Model AW139
helicopters. EASA ADs 2017-0083 and 2017-0087 require a one-time visual
inspection of the M/R slip ring fastener installation, and depending on
the outcome, replacing the M/R slip ring, replacing fasteners, applying
torque, installing lock wire, and re-identifying the M/R slip ring.
EASA ADs 2017-0083 and 2017-0087 also prohibit installation of an
affected M/R slip ring. EASA states, this condition, if not detected
and corrected, could lead to failure of the M/R slip ring bearing inner
race, possibly resulting in damage to drive system components and
subsequent reduced control of the helicopter.

FAA's Determination

    These helicopters have been approved by EASA and are approved for
operation in the United States. Pursuant to the FAA's bilateral
agreement with the European Union, EASA has notified the FAA of the
unsafe condition described in its ADs. The FAA is proposing this AD
after evaluating all known relevant information and determining that an
unsafe condition is likely to exist or develop on other products of the
same type designs.

Related Service Information Under 1 CFR Part 51

    The FAA reviewed Leonardo Helicopters Alert Service Bulletin (ASB)
No. 139-472, dated May 9, 2017 (ASB 139-472), for Model AB139 and AW139
helicopters, and Leonardo Helicopters ASB No. 189-138, dated May 12,
2017 (ASB 189-138), for Model AW189 helicopters. ASB 139-472 and ASB
189-138 specify inspecting the M/R slip ring by following the
procedures in Moog Service Bulletin No. SB 16-01, Revision 5, undated
(SB 16-01), which is attached as Annex A to both ASB 139-472 and ASB
189-138. ASB 139-472 and ASB 189-138 are proposed for incorporation by
reference in this proposed AD. SB 16-01 is not proposed for
incorporation by reference in this proposed AD.
    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.

Other Related Service Information

    The FAA also reviewed SB 16-01, which specifies procedures to
visually inspect the M/R slip ring upper (connecter) end and lower
(pigtail or standpipe) end fastener screws and double-twist lock wire.

Proposed AD Requirements in This NPRM

    This proposed AD would require, with the M/R slip ring removed,
inspecting each screw and double-twist lock wire of the upper
(connecter) end and lower (pigtail or standpipe) end

fasteners of the M/R slip ring. Depending on the outcome, this proposed
AD would require:
     Marking the M/R slip ring;
     Removing the M/R slip ring from service; or
     Removing screws and washers, lock wire, and ferrule ended
safety cable from service; installing new screws and washers; applying
torque; installing double-twist lock wire; and marking the M/R slip
ring.
    This proposed AD would also prohibit the installation of an
affected M/R slip ring unless the proposed requirements have been
completed.

Differences Between This Proposed AD and the EASA ADs

    EASA ADs 2017-0083 and 2017-0087 include the compliance time of at
the next M/R slip ring removal, whereas this proposed AD does not
because it could be difficult to track. This proposed AD has a shorter
compliance time for all affected M/R slip rings that have accumulated
900 or more total hours time-in-service, whereas EASA AD 2017-0087
allows a longer compliance time for these affected M/R slip rings that
are installed on Model AW189 helicopters. EASA ADs 2017-0083 and 2017-
0087 specify inspecting for the proper lock wire installed, while this
proposed AD specifies inspecting for correct installation of lock wire
0.20 CRES NAS 33540 part number MS20995C20 (double-twist lock wire) and
any missing double-twist lock wire. If a screw is missing from the
inner diameter (the connector flange) of the upper end of the M/R slip
ring, EASA ADs 2017-0083 and 2017-0087 specify replacing the M/R slip
ring with a serviceable part, whereas this proposed AD would require
removing the M/R slip ring from service instead. If a screw is missing
from the outer diameter of the upper end, from the inner diameter of
the lower end (shaft extension attachment area), or from the outer
diameter of the lower end, this proposed AD would require installing a
new screw and washer, applying torque, and installing lock wire,
whereas corrective action for this condition is not specified in EASA
AD 2017-0083 or 2017-0087.

Costs of Compliance

    The FAA estimates that this proposed AD affects 134 helicopters of
U.S. Registry. The FAA estimates that operators may incur the following
costs in order to comply with this proposed AD. Labor costs are
estimated at $85 per work-hour.
    Inspecting an M/R slip ring would take about 10 work-hours for an
estimated cost of $850 per helicopter and $113,900 for the U.S. fleet.
Marking an M/R slip ring would take a minimal amount of time and parts
would cost a nominal amount. Replacing an M/R slip ring would take
about 3 work-hours and parts would cost about $65,000 for an estimated
cost of $65,255 per helicopter. Removing any ferrule ended safety
cable; replacing screws and washers; applying torque; and installing
lock wire would take about 1 work-hour and parts would cost a nominal
amount for an estimated cost of $85 per helicopter.

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.
    The FAA is 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

    The FAA 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, I certify this proposed regulation:
    (1) Is not a ``significant regulatory action'' under Executive
Order 12866,
    (2) Would not affect intrastate aviation in Alaska, and
    (3) Would not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

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

The Proposed Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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

Sec.  39.13   [Amended]

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

Leonardo S.p.a. (Type Certificates Previously Held by Agusta S.p.A.
and AgustaWestland S.p.A.): Docket No. FAA-2021-0304; Project
Identifier 2017-SW-108-AD.

(a) Comments Due Date

    The FAA must receive comments on this airworthiness directive
(AD) by June 3, 2021.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Leonardo S.p.a. (Type Certificate previously
held by Agusta S.p.A.) Model AB139 and AW139 helicopters and
Leonardo S.p.a. (Type Certificate previously held by AgustaWestland
S.p.A.) Model AW189 helicopters, certificated in any category, with
a main rotor (M/R) slip ring part number (P/N) 4G6220V00151 with a
serial (S/N) number up to and including S/N 0141, except those
marked with an ``L'' following the S/N, installed.

(d) Subject

    Joint Aircraft Service Component (JASC) Code: 6200, Main Rotor
System.

(e) Unsafe Condition

    This AD was prompted by reports of missing lock wire and loose
fasteners. The FAA is issuing this AD to address failure of an M/R
slip ring fastener. The unsafe condition, if not addressed, could
result in failure of the M/R slip ring bearing inner race, reduced
M/R control, and subsequent loss of control of the helicopter.

(f) Compliance

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

(g) Required Actions

    (1) For an M/R slip ring that has accumulated 900 or more total
hours time-in-service (TIS), within 50 hours TIS after the effective
date of this AD; and for an M/R slip ring that has accumulated less
than 900 total hours TIS, within 300 hours TIS after the effective
date of this AD or before accumulating 950 total hours TIS,
whichever occurs first:
    (i) With the M/R slip ring removed, visually inspect for the
presence of each screw, the presence of any ferrule ended

safety cable, the correct installation of lock wire 0.20 CRES NAS
33540 P/N MS20995C20 (double-twist lock wire), and any missing
double-twist lock wire for each set of upper (connecter) end and
lower (pigtail or standpipe) end fasteners of the M/R slip ring as
depicted in Figures 1 and 2 of Annex A to Leonardo Helicopters Alert
Service Bulletin (ASB) No. 139-472, dated May 9, 2017 (ASB 139-472),
or Leonardo Helicopters ASB No. 189-138, dated May 12, 2017 (ASB
189-138), as applicable to your model helicopter. Figures 2 and 3 of
Annex A to ASB 139-472 and ASB 189-138 also show examples of a
ferrule ended safety cable installed that are not approved.
    Note 1 to paragraph (g)(1)(i): Annex A to ASB 139-472 and ASB
189-138 is Moog Service Bulletin No. SB 16-01, Revision 5, undated.
    (ii) If all of the screws are present, there is not any ferrule
ended safety cable installed, the double-twist lock wire is
correctly installed, and none of the double-twist lock wire is
missing on each set of upper end and lower end fasteners of the M/R
slip ring, before further flight, mark the letter ``L'' following
the S/N on the identification label by following the Compliance
Instructions, paragraph 3) of Annex A to ASB 139-472 or ASB 189-138,
as applicable to your model helicopter.
    (iii) If a screw is missing from the inner diameter (the
connector flange) of the upper end of the M/R slip ring, before
further flight, remove the M/R slip ring from service.
    (iv) If a screw is missing from the outer diameter of the upper
end, from the inner diameter of the lower end (shaft extension
attachment area), or from the outer diameter of the lower end,
before further flight, install a new screw and washer, apply a
torque to 1-1.25 Nm, and install double-twist lock wire by following
the Compliance Instructions, paragraphs 9)a) through g) of Annex A
to ASB 139-472 or ASB 189-138, as applicable to your model
helicopter.
    (v) If any double-twist lock wire is not correctly installed, is
missing, or if there is a ferrule ended safety cable installed on
any set of upper end or lower end fasters of the M/R slip ring,
before further flight, remove the incorrectly installed lock wire or
ferrule ended safety cable from service, as applicable, and inspect
the fastener torque by applying 1-1.25 Nm of torque.
    (A) If the torque of a screw installed in the inner diameter
(the connector flange) of the upper end of the M/R slip ring is
below 1 Nm of torque, do not remove or replace the screw, before
further flight, apply a torque of 1-1.25 Nm.
    (B) If the torque of a screw installed in the outer diameter of
the upper end, in the inner diameter of the lower end (shaft
extension attachment area), or in the outer diameter of the lower
end is below 1 Nm of torque, before further flight, remove the
affected screw and washer from service, install a new screw and
washer, and apply a torque of 1-1.25 Nm.
    (C) Install double-twist lock wire by following the Compliance
Instructions, paragraphs 9)a) through g) of Annex A to ASB 139-472
or ASB 189-138, as applicable to your model helicopter.
    (vi) Mark the letter ``L'' following the S/N on the
identification label by following the Compliance Instructions,
paragraph 3) of Annex A to ASB 139-472 or ASB 189-138, as applicable
to your model helicopter.
    (2) As of the effective date of this AD, do not install an M/R
slip ring identified in paragraph (c) of this AD unless the
requirements of paragraph (g)(1) have been accomplished.

(h) Special Flight Permits

    Special flight permits are prohibited.

(i) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, International Validation Branch, FAA, has the
authority to approve AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19,
send your request to your principal inspector or local Flight
Standards District Office, as appropriate. If sending information
directly to the manager of the International Validation Branch, send
it to the attention of the person identified in paragraph (j)(1) of
this AD. Information may be emailed to<EMAIL_ADDRESS>    (2) 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.

(j) Related Information

    (1) For more information about this AD, contact Steven Warwick,
Aerospace Engineer, Certification Section, Fort Worth ACO Branch,
Compliance & Airworthiness Division, 10101 Hillwood Pkwy., Fort
Worth, TX 76177; telephone<PHONE_NUMBER>; email
<EMAIL_ADDRESS>    (2) Moog Service Bulletin No. SB 16-01, Revision 5, undated, is
attached as Annex A to both ASB 139-472 and ASB 189-138. For
Leonardo Helicopters and Moog service information identified in this
AD, contact Leonardo S.p.A. Helicopters, Emanuele Bufano, Head of
Airworthiness, Viale G.Agusta 520, 21017 C.Costa di Samarate (Va)
Italy; telephone +39-0331-225074; fax +39-0331-229046; or at https://www.leonardocompany.com/en/home. You may view the referenced
service information at the FAA, Office of the Regional Counsel,
Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Worth, TX
76177. For information on the availability of this material at the
FAA, call<PHONE_NUMBER>.
    (3) The subject of this AD is addressed in European Aviation
Safety Agency (now European Union Aviation Safety Agency) (EASA) AD
2017-0083, dated May 10, 2017, and EASA AD 2017-0087, dated May 12,
2017. You may view the EASA ADs on the internet at https://www.regulations.gov in the AD Docket.

    Issued on April 8, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2021-07666 Filed 4-16-21; 8:45 am]
BILLING CODE 4910-13-P