Airworthiness Directives; Airworthiness Directives; Airbus Helicopters and Airbus Helicopters Deutschland GmbH (AHD) Helicopters, 57571-57574 [2021-22467]
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Federal Register / Vol. 86, No. 198 / Monday, October 18, 2021 / Rules and Regulations
Regulatory Findings
This AD will not have federalism
implications under Executive Order
13132. This AD will not have a
substantial direct effect on the States, on
the relationship between the national
government and the States, or on the
distribution of power and
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify that this AD:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
(2) Will not affect intrastate aviation
in Alaska, and
(3) 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 Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as
follows:
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new airworthiness
directive:
■
2021–20–06 Airbus Helicopters:
Amendment 39–21744; Docket No.
FAA–2021–0460; Project Identifier
MCAI–2020–01620–R.
(a) Effective Date
This airworthiness directive (AD) is
effective November 22, 2021.
(b) Affected ADs
None.
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(c) Applicability
This AD applies to Airbus Helicopters
Model AS355E, AS355F, AS355F1, and
AS355F2 helicopters, certificated in any
category, with a Rolls-Royce Corporation
(formerly Allison) engine Model 250–C20F
installed.
(d) Subject
Joint Aircraft Service Component (JASC)
Code: 7250, Turbine section.
(e) Unsafe Condition
This AD was prompted by multiple fatigue
cracks in power turbine (PT) 3rd stage
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wheels. The FAA is issuing this AD to
prevent fatigue failure of a PT 3rd stage
wheel. The unsafe condition, if not
addressed, could result in loss of engine
power, release of debris and damage to the
helicopter, and loss of control of the
helicopter.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Required Actions
Within 50 hours time-in-service after the
effective date of this AD:
(1) Revise the existing Rotorcraft Flight
Manual (RFM) for your helicopter by
inserting the page applicable to your
helicopter model and version from Appendix
4.A. through D., of Airbus Helicopters Alert
Service Bulletin No. AS355–71.00.21,
Revision 1, dated November 10, 2020 (ASB
AS355–71.00.21 Rev 1). Inserting a different
document with information identical to that
in Appendix 4.A. through D., of ASB AS355–
71.00.21 Rev 1, as applicable to your
helicopter model and version, is acceptable
for compliance with the requirement of this
paragraph. The action required by this
paragraph may be performed by the owner/
operator (pilot) holding at least a private pilot
certificate and must be entered into the
aircraft records showing compliance with
this AD in accordance with § 43.9(a)(1)
through (4) and § 91.417(a)(2)(v). The record
must be maintained as required by § 91.417,
§ 121.380, or § 135.439.
(2) Install a placard in full view of the pilot
and co-pilot by following the
Accomplishment Instructions, paragraph
3.B., of ASB AS355–71.00.21 Rev 1.
Note 1 to paragraph (g)(2): Airbus
Helicopters service information refers to a
placard as a label.
(h) Special Flight Permits
Special flight permits are permitted so long
as continuous engine operation between 71
and 95% N2 is avoided.
(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: 9-AVS-AIR730-AMOC@faa.gov.
(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 Michael Hughlett, Aerospace
Engineer, General Aviation & Rotorcraft
Section, International Validation Branch,
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57571
FAA, 10101 Hillwood Pkwy., Fort Worth, TX
76177; telephone (817) 222–5110; email
michael.hughlett@faa.gov.
(2) The subject of this AD is addressed in
European Union Aviation Safety Agency
(EASA) AD 2020–0266, dated December 8,
2020. You may view the EASA AD on the
internet at https://www.regulations.gov in
Docket No. FAA–2021–0460.
(k) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference 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 the AD specifies otherwise.
(i) Airbus Helicopters Alert Service
Bulletin No. AS355–71.00.21, Revision 1,
dated November 10, 2020.
(ii) [Reserved]
(3) For service information identified in
this AD, contact Airbus Helicopters, 2701
North Forum Drive, Grand Prairie, TX 75052;
telephone (972) 641–0000 or (800) 232–0323;
fax (972) 641–3775; or at https://
www.airbus.com/helicopters/services/
technical-support.html.
(4) 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 (817) 222–5110.
(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: fr.inspection@nara.gov, or go to:
https://www.archives.gov/federal-register/cfr/
ibr-locations.html.
Issued on September 15, 2021.
Ross Landes,
Deputy Director for Regulatory Operations,
Compliance & Airworthiness Division,
Aircraft Certification Service.
[FR Doc. 2021–22466 Filed 10–15–21; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2021–0496; Project
Identifier MCAI–2020–00393–R; Amendment
39–21700; AD 2021–17–17]
RIN 2120–AA64
Airworthiness Directives;
Airworthiness Directives; Airbus
Helicopters and Airbus Helicopters
Deutschland GmbH (AHD) Helicopters
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
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Federal Register / Vol. 86, No. 198 / Monday, October 18, 2021 / Rules and Regulations
The FAA is adopting a new
airworthiness directive (AD) for Airbus
Helicopters Model AS332C, AS332C1,
AS332L, AS332L1, AS350B, AS350BA,
AS350B1, AS350B2, AS350B3, AS350D,
AS355E, AS355F, AS355F1, AS355F2,
AS355N, AS355NP, AS–365N2, AS 365
N3, EC120B, EC130B4, EC130T2, EC
155B, EC155B1, SA–365N, and SA–
365N1 helicopters; and Airbus
Helicopters Deutschland GmbH (AHD)
Model EC135P1, EC135P2, EC135P2+,
EC135P3, EC135T1, EC135T2,
EC135T2+, EC135T3, MBB–BK117 C–2,
and MBB–BK117 D–2 helicopters. This
AD was prompted by failure of an
Emergency Flotation System (EFS) float
compartment to inflate during
maintenance of the EFS. This AD
requires inspecting certain EFSs and
depending on the results, marking
certain parts or removing certain parts
from service, as specified in a European
Union Aviation Safety Agency (EASA)
AD, which is incorporated by reference
(IBR). The FAA is issuing this AD to
address the unsafe condition on these
products.
DATES: This AD is effective November
22, 2021.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of November 22, 2021.
ADDRESSES: For EASA material
incorporated by reference (IBR) in this
AD, contact the EASA, KonradAdenauer-Ufer 3, 50668 Cologne,
Germany; telephone +49 221 8999 000;
email ADs@easa.europa.eu; internet
www.easa.europa.eu. You may find this
material on the EASA website at https://
ad.easa.europa.eu. For Safran
Aerosystems service information
identified in this final rule, contact
Safran Aerosystems, Technical
Publication Department, 61 rue Pierre
Curie CS20001, 78373 Plaisir Cedex,
France; telephone (33) 1 61 34 23 23; fax
(33) 1 61 34 24 41; or at https://
www.safran-aerosystems.com/
customers-0. You may view this
material 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 (817) 222–5110. It is also
available in the AD docket on the
internet at https://www.regulations.gov
by searching for and locating Docket No.
FAA–2021–0496.
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SUMMARY:
Examining the AD Docket
You may examine the AD docket on
the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2021–
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16:35 Oct 15, 2021
Jkt 256001
0496; 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 final rule,
any comments received, and other
information. The address for Docket
Operations is U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE,
Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT:
Andrea Jimenez, Aerospace Engineer,
Airframe and Propulsion Section, FAA,
New York ACO Branch, 1600 Stewart
Avenue, Suite 410, Westbury, NY
11590; telephone (516) 228–7330; fax
(516) 794–5531; email 9-avs-nyaco-cos@
faa.gov.
SUPPLEMENTARY INFORMATION:
Background
EASA, which is the Technical Agent
for the Member States of the European
Union, has issued EASA AD 2020–0064,
dated March 19, 2020 (EASA AD 2020–
0064), to correct an unsafe condition for
Airbus Helicopters (AH), formerly
Eurocopter, Eurocopter France,
Aerospatiale Model EC 120 B, EC 175 B,
AS 332 C, AS 332 C1, AS 332 L, AS 332
L1, AS 350 B, AS 350 B1, AS 350 B2,
AS 350 BA, AS 350 BB, AS 350 B3, AS
350 D, EC 130 B4, EC 130 T2, AS 355
E, AS 355 F, AS 355 F1, AS 355 F2, AS
355 N, AS 355 NP, SA 365 N, SA 365
N1, AS 365 N2, AS 365 N3, EC 155 B,
and EC 155 B1 helicopters. EASA AD
2020–0064 also corrects an unsafe
condition for Airbus Helicopters
Deutschland GmbH (AHD), formerly
Eurocopter Deutschland GmbH; and
Airbus Helicopters Inc., formerly
American Eurocopter LLC, Eurocopter
Espan˜a S.A. Model MBB–BK117 C–2,
MBB–BK117 D–2, EC 135 P1, EC 135
P2, EC 135 P2+, EC 135 P3, EC 135 T1,
EC 135 T2, EC 135 T2+, EC 135 T3, EC
635 P2+, EC 635 P3, EC 635 T1, EC 635
T2+, and EC 635 T3 helicopters. Model
EC635 P2+, EC635 P3, EC635 T1, EC635
T2+, and EC635 T3 helicopters are not
certificated by the FAA and are not
included on the U.S. type certificate
data sheet except where the U.S. type
certificate data sheet explains that the
Model EC635T2+ helicopter having
serial number 0858 was converted from
Model EC635T2+ to Model EC135T2+;
this AD therefore does not include
Model EC635 P2+, EC635 P3, EC635 T1,
EC635 T2+, and EC635 T3 helicopters in
the applicability.
The FAA issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would
apply to certain Airbus Helicopters
Model AS332C, AS332C1, AS332L,
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AS332L1, AS350B, AS350BA, AS350B1,
AS350B2, AS350B3, AS350D, AS355E,
AS355F, AS355F1, AS355F2, AS355N,
AS355NP, AS–365N2, AS 365 N3,
EC120B, EC130B4, EC130T2, EC 155B,
EC155B1, SA–365N, and SA–365N1
helicopters, and Airbus Helicopters
Deutschland GmbH (AHD) Model
EC135P1, EC135P2, EC135P2+,
EC135P3, EC135T1, EC135T2,
EC135T2+, EC135T3, MBB–BK117 C–2,
and MBB–BK117 D–2 helicopters. The
NPRM published in the Federal
Register on June 16, 2021 (86 FR 31995).
The NPRM was prompted by failure of
an Emergency Flotation System (EFS)
float compartment to inflate during
maintenance of the EFS. The NPRM
proposed to require inspecting certain
EFSs and depending on the results,
marking certain parts or removing
certain parts from service specified in
EASA AD 2020–0064.
Discussion of Final Airworthiness
Directive
Comments
The FAA gave the public the
opportunity to participate in developing
this final rule. The FAA received no
comments on the NPRM or on the
determination of the cost to the public.
Conclusion
The FAA reviewed the relevant data
and determined that air safety and the
public interest require adopting this
final rule as proposed, except for a
minor change. In the NPRM, the FAA
proposed to require actions specified in
EASA AD 2020–0064 through
incorporation by reference, except for
certain differences. The FAA has
obtained approval to use this process
from certain manufacturers, including
Airbus Helicopters and Airbus
Helicopters Deutschland GmbH (AHD);
however, the FAA has not worked with
Safran Aerosystems for approval of this
process. EASA AD 2020–0064 requires
using Safran Aerosystems Service
Bulletin (SB) 025–69–18, original issue
(Revision 0), dated December 11, 2019
or Revision 1, dated February 4, 2020
(SB 025–69–18 Rev 0 or SB 025–69–18
Rev 1), and allows the use of later
approved revisions, to accomplish
certain actions. In this AD, a
clarification has been added into this
final rule to directly use SB 025–69–18
Rev 1 or Safran Aerosystems SB 025–
69–18, Revision 2, dated March 24, 2021
(SB 025–69–18 Rev 2), instead of using
SB 025–69–18 Rev 0 or SB 025–69–18
Rev 1 through incorporation by
reference of EASA AD 2020–0064.
The FAA has determined that this
minor change:
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Federal Register / Vol. 86, No. 198 / Monday, October 18, 2021 / Rules and Regulations
• Is consistent with the intent that
was proposed in the NPRM for
addressing the unsafe condition; and
• Does not add any additional burden
upon the public than was already
proposed in the NPRM.
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Related Service Information Under 1
CFR Part 51
EASA AD 2020–0064 specifies
inspecting certain EFSs and depending
on the results, marking a float supply
hose with a green dot with indelible ink
if the float supply hose passes an
inspection, replacing the float supply
hose with a serviceable float supply
hose, or replacing an affected EFS with
a serviceable EFS. EASA AD 2020–0064
also prohibits installing a float supply
hose unless it passes the inspection and
is marked.
The FAA reviewed SB 025–69–18 Rev
1 and SB 025–69–18 Rev 2, which apply
to certain Safran Aerosystems EFS and
float supply hoses. Each revision of this
service information specifies procedures
for inspecting single- and multi-section
EFS inflation system float supply hoses
for blockage, and depending on the
results, replacing the hose and
contacting Safran Aerosystems, or
marking the hose. SB 025–69–18 Rev 2
was issued to correct a list of possibly
affected parts (Table 3).
This material 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.
Differences Between This AD and the
EASA AD
EASA AD 2020–0064 applies to
Airbus Helicopters Model EC120B,
EC175B, AS332C, AS332C1, AS332L,
AS332L1, AS350B, AS350B1, AS350B2,
AS350BA, AS350BB, AS350B3,
AS350D, EC130B4, EC130T2, AS355E,
AS355F, AS355F1, AS355F2, AS355N,
AS355NP, SA–365N, SA–365N1, AS–
365N2, AS 365 N3, EC155 B, and
EC155B1 helicopters and Airbus
Helicopters Deutschland GmbH Model
MBB–BK 117 C–2, MBB–BK 117 D–2,
EC135P1, EC135P2, EC135P2+,
EC135P3, EC135T1, EC135T2,
EC135T2+, EC135T3, EC635 P2+,
EC635P3, EC635T1, EC635T2+, and
EC635T3 helicopters, whereas this AD
does not include Model AS350BB,
EC175B, EC635P2+, EC635P3, EC635T1,
EC635T2+, and EC635T3 helicopters
because these models are not FAA typecertificated. Where the service
information referenced in EASA AD
2020–0064 requires certain compliance
times depending on whether the
helicopter is operated over water, this
AD requires compliance within 100
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hours time-in-service (TIS) instead.
Where the service information
referenced in EASA AD 2020–0064
specifies ‘‘work must be performed on
the helicopter by the operator,’’ this AD
requires that the work be accomplished
by a mechanic that meets the
requirements of 14 CFR part 65 subpart
D. Where some of the service
information referenced in EASA AD
2020–0064 specifies replacing or
removing an affected hose that fails the
inspection, this AD requires removing
the hose from service instead. Where
some of the service information
referenced in EASA AD 2020–0064
specifies to discard certain parts, this
proposed AD requires removing those
parts from service instead. Where some
of the service information referenced in
EASA AD 2020–0064 specifies to return
the EFS to the Safran Aerosystems
network or clogged hoses to Safran
Aerosystems Services, this AD does not
include those requirements. Where the
service information referenced in EASA
AD 2020–0064 specifies to submit
certain information to the manufacturer,
this AD does not include that
requirement.
Costs of Compliance
The FAA estimates that this AD
affects 1,900 helicopters of U.S.
Registry. Labor rates are estimated at
$85 per work-hour. Based on these
numbers, the FAA estimates that
operators may incur the following costs
in order to comply with this AD.
Inspecting the EFS takes up to about
8 work-hours for an estimated cost of up
to $680 per helicopter and $1,292,000
for the U.S. fleet.
Replacing an EFS hose takes about 1
work-hour and parts cost between $500
and $2,000 per hose, and up to $11,000
for a set of float supply hoses, for an
estimated cost of up to $11,085 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.
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57573
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
This AD will not have federalism
implications under Executive Order
13132. This AD will not have a
substantial direct effect on the States, on
the relationship between the national
government and the States, or on the
distribution of power and
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify that this AD:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
(2) Will not affect intrastate aviation
in Alaska, and
(3) 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 Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as
follows:
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new airworthiness
directive:
■
2021–17–17 Airbus Helicopters and Airbus
Helicopters Deutschland GmbH (AHD):
Amendment 39–21700; Docket No.
FAA–2021–0496; Project Identifier
MCAI–2020–00393–R.
(a) Effective Date
This airworthiness directive (AD) is
effective November 22, 2021.
(b) Affected Airworthiness Directives (ADs)
None.
(c) Applicability
This AD applies to the following
helicopters, certificated in any category, with
an affected part as defined in European
Union Aviation Safety Agency (EASA) AD
2020–0064, dated March 19, 2020 (EASA AD
2020–0064), installed:
(1) Airbus Helicopters Model AS332C,
AS332C1, AS332L, AS332L1, AS350B,
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AS350BA, AS350B1, AS350B2, AS350B3,
AS350D, AS355E, AS355F, AS355F1,
AS355F2, AS355N, AS355NP, AS–365N2,
AS 365 N3, EC120B, EC130B4, EC130T2, EC
155B, EC155B1, SA–365N, and SA–365N1
helicopters, and
Note 1 to paragraph (c)(1): Helicopters
with an AS350B3e designation are Model
AS350B3 helicopters.
(2) Airbus Helicopters Deutschland GmbH
(AHD) Model EC135P1, EC135P2, EC135P2+,
EC135P3, EC135T1, EC135T2, EC135T2+,
EC135T3, MBB–BK117 C–2, and MBB–
BK117 D–2 helicopters.
Note 2 to paragraph (c)(2): Helicopters
with an EC135P3H designation are Model
EC135P3 helicopters. Helicopters with an
EC135T3H designation are Model EC135T3
helicopters. Helicopters with an MBB–BK117
C–2e designation are Model MBB–BK117 C–
2 helicopters.
(d) Subject
Joint Aircraft System Component (JASC)
Code: 2500, Cabin Equipment/Furnishings.
(e) Unsafe Condition
This AD was prompted by failure of an
Emergency Flotation System (EFS) float
compartment to inflate during maintenance
of the EFS. The FAA is issuing this AD to
address a blocked float supply hose. The
unsafe condition, if not addressed, could
result in partial inflation of an EFS float
during an emergency landing on water and
subsequently preventing a timely egress from
the helicopter, which could result in injury
to helicopter occupants.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
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(g) Requirements
Except as specified in paragraph (h) of this
AD: Comply with all required actions and
compliance times specified in, and in
accordance with, EASA AD 2020–0064.
(h) Exceptions to EASA AD 2020–0064
(1) Where EASA AD 2020–0064 refers to its
effective date, this AD requires using the
effective date of this AD.
(2) Where paragraph (1) of the EASA AD
requires inspecting each affected part within
the compliance time defined in section 1.E of
the applicable ASB, this AD requires
inspecting each affected part within 100
hours time-in-service (TIS) after the effective
date of this AD.
(3) Where the service information
referenced in paragraph (1) of EASA AD
2020–0064 specifies that ‘‘the work must be
performed on the helicopter by the operator,’’
this AD requires that the work be
accomplished by a mechanic that meets the
requirements of 14 CFR part 65 subpart D.
(4) Where the service information
referenced in EASA AD 2020–0064 specifies
replacing or removing an affected hose that
fails the inspection, this AD requires
removing the hose from service.
(5) Where the service information
referenced in EASA AD 2020–0064 specifies
to discard certain parts, this AD requires
removing those parts from service.
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(6) Where the service information
referenced in EASA AD 2020–0064 specifies
returning the EFS to the Safran Aerosystems
network for compliance or returning clogged
hoses to Safran Aerosystems Services, this
AD does not include those requirements.
(7) This AD does not mandate compliance
with the ‘‘Remarks’’ section of EASA AD
2020–0064.
(i) Clarification of Required Service
Information
As required by the Definitions section and
paragraph (4.2) of EASA AD 2020–0064, this
AD requires using Safran Aerosystems
Service Bulletin (SB) 025–69–18, Revision 1,
dated February 4, 2020, or Safran
Aerosystems SB 025–69–18, Revision 2,
dated March 24, 2021.
(j) No Reporting Requirement
Although the service information
referenced in EASA AD 2020–0064 specifies
to submit certain information to the
manufacturer, this AD does not include that
requirement.
(k) 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 (l) of this AD.
Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov.
(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.
(l) Related Information
For more information about this AD,
contact Andrea Jimenez, Aerospace Engineer,
Airframe and Propulsion Section, FAA, New
York ACO Branch, 1600 Stewart Avenue,
Suite 410, Westbury, NY 11590; telephone
516–228–7330; fax 516–794–5531; email 9avs-nyaco-cos@faa.gov.
(m) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR
part 51.
(2) You must use this service information
as applicable to do the actions required by
this AD, unless this AD specifies otherwise.
(i) European Union Aviation Safety Agency
(EASA) AD 2020–0064, dated March 19,
2020.
(ii) Safran Aerosystems Service Bulletin
(SB) 025–69–18, Revision 1, dated February
4, 2020.
(iii) Safran Aerosystems SB 025–69–18,
Revision 2, dated March 24, 2021.
(3) For EASA AD 2020–0064, contact the
EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; telephone +49 221 8999
PO 00000
Frm 00046
Fmt 4700
Sfmt 4700
000; email ADs@easa.europa.eu; Internet
www.easa.europa.eu. You may find this
EASA AD on the EASA website at https://
ad.easa.europa.eu. For Safran Aerosystems
service information identified in this AD,
contact Safran Aerosystems, Technical
Publication Department, 61 rue Pierre Curie
CS20001, 78373 Plaisir Cedex, France;
telephone (33) 1 61 34 23 23; fax (33) 1 61
34 24 41; or at https://www.safranaerosystems.com/customers-0.
(4) 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 817–222–5110. This
material may be found in the AD docket on
the internet at https://www.regulations.gov
by searching for and locating Docket No.
FAA–2021–0496.
(5) You may view this material that is
incorporated by reference at the National
Archives and Records Administration
(NARA). For information on the availability
of this material at NARA, email
fr.inspection@nara.gov, or go to https://
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued on September 16, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2021–22467 Filed 10–15–21; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2021–0579; Project
Identifier MCAI–2020–00267–R; Amendment
39–21748; AD 2021–20–10]
RIN 2120–AA64
Airworthiness Directives; Leonardo
S.p.a. Helicopters
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
The FAA is adopting a new
airworthiness directive (AD) for certain
Leonardo S.p.a. Model AB139 and
AW139 helicopters. This AD was
prompted by a report of several
occurrences of a cracked main gearbox
(MGB) spherical bearing lock nut (lock
nut). This AD requires removing from
service a certain part-numbered MGB
lock nut that is installed on certain partnumbered MGBs and replacing it with
newly designed MGB lock nut. This AD
also prohibits installing any MGB with
the affected MGB lock nut and prohibits
installing any affected MGB lock nut on
any helicopter. The FAA is issuing this
AD to address the unsafe condition on
these products.
SUMMARY:
E:\FR\FM\18OCR1.SGM
18OCR1
]]>Agencies
[Federal Register Volume 86, Number 198 (Monday, October 18, 2021)]
[Rules and Regulations]
[Pages 57571-57574]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-22467]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2021-0496; Project Identifier MCAI-2020-00393-R;
Amendment 39-21700; AD 2021-17-17]
RIN 2120-AA64
Airworthiness Directives; Airworthiness Directives; Airbus
Helicopters and Airbus Helicopters Deutschland GmbH (AHD) Helicopters
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
[[Page 57572]]
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
Airbus Helicopters Model AS332C, AS332C1, AS332L, AS332L1, AS350B,
AS350BA, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1,
AS355F2, AS355N, AS355NP, AS-365N2, AS 365 N3, EC120B, EC130B4,
EC130T2, EC 155B, EC155B1, SA-365N, and SA-365N1 helicopters; and
Airbus Helicopters Deutschland GmbH (AHD) Model EC135P1, EC135P2,
EC135P2+, EC135P3, EC135T1, EC135T2, EC135T2+, EC135T3, MBB-BK117 C-2,
and MBB-BK117 D-2 helicopters. This AD was prompted by failure of an
Emergency Flotation System (EFS) float compartment to inflate during
maintenance of the EFS. This AD requires inspecting certain EFSs and
depending on the results, marking certain parts or removing certain
parts from service, as specified in a European Union Aviation Safety
Agency (EASA) AD, which is incorporated by reference (IBR). The FAA is
issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective November 22, 2021.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of November 22,
2021.
ADDRESSES: For EASA material incorporated by reference (IBR) in this
AD, contact the EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany;
telephone +49 221 8999 000; email [email protected]; internet
www.easa.europa.eu. You may find this material on the EASA website at
https://ad.easa.europa.eu. For Safran Aerosystems service information
identified in this final rule, contact Safran Aerosystems, Technical
Publication Department, 61 rue Pierre Curie CS20001, 78373 Plaisir
Cedex, France; telephone (33) 1 61 34 23 23; fax (33) 1 61 34 24 41; or
at https://www.safran-aerosystems.com/customers-0. You may view this
material 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 (817)
222-5110. It is also available in the AD docket on the internet at
https://www.regulations.gov by searching for and locating Docket No.
FAA-2021-0496.
Examining the AD Docket
You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-
0496; 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 final rule, any comments received, and other information. The
address for Docket Operations is U.S. Department of Transportation,
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200
New Jersey Avenue SE, Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Andrea Jimenez, Aerospace Engineer,
Airframe and Propulsion Section, FAA, New York ACO Branch, 1600 Stewart
Avenue, Suite 410, Westbury, NY 11590; telephone (516) 228-7330; fax
(516) 794-5531; email [email protected].
SUPPLEMENTARY INFORMATION:
Background
EASA, which is the Technical Agent for the Member States of the
European Union, has issued EASA AD 2020-0064, dated March 19, 2020
(EASA AD 2020-0064), to correct an unsafe condition for Airbus
Helicopters (AH), formerly Eurocopter, Eurocopter France, Aerospatiale
Model EC 120 B, EC 175 B, AS 332 C, AS 332 C1, AS 332 L, AS 332 L1, AS
350 B, AS 350 B1, AS 350 B2, AS 350 BA, AS 350 BB, AS 350 B3, AS 350 D,
EC 130 B4, EC 130 T2, AS 355 E, AS 355 F, AS 355 F1, AS 355 F2, AS 355
N, AS 355 NP, SA 365 N, SA 365 N1, AS 365 N2, AS 365 N3, EC 155 B, and
EC 155 B1 helicopters. EASA AD 2020-0064 also corrects an unsafe
condition for Airbus Helicopters Deutschland GmbH (AHD), formerly
Eurocopter Deutschland GmbH; and Airbus Helicopters Inc., formerly
American Eurocopter LLC, Eurocopter Espa[ntilde]a S.A. Model MBB-BK117
C-2, MBB-BK117 D-2, EC 135 P1, EC 135 P2, EC 135 P2+, EC 135 P3, EC 135
T1, EC 135 T2, EC 135 T2+, EC 135 T3, EC 635 P2+, EC 635 P3, EC 635 T1,
EC 635 T2+, and EC 635 T3 helicopters. Model EC635 P2+, EC635 P3, EC635
T1, EC635 T2+, and EC635 T3 helicopters are not certificated by the FAA
and are not included on the U.S. type certificate data sheet except
where the U.S. type certificate data sheet explains that the Model
EC635T2+ helicopter having serial number 0858 was converted from Model
EC635T2+ to Model EC135T2+; this AD therefore does not include Model
EC635 P2+, EC635 P3, EC635 T1, EC635 T2+, and EC635 T3 helicopters in
the applicability.
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to certain Airbus
Helicopters Model AS332C, AS332C1, AS332L, AS332L1, AS350B, AS350BA,
AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2,
AS355N, AS355NP, AS-365N2, AS 365 N3, EC120B, EC130B4, EC130T2, EC
155B, EC155B1, SA-365N, and SA-365N1 helicopters, and Airbus
Helicopters Deutschland GmbH (AHD) Model EC135P1, EC135P2, EC135P2+,
EC135P3, EC135T1, EC135T2, EC135T2+, EC135T3, MBB-BK117 C-2, and MBB-
BK117 D-2 helicopters. The NPRM published in the Federal Register on
June 16, 2021 (86 FR 31995). The NPRM was prompted by failure of an
Emergency Flotation System (EFS) float compartment to inflate during
maintenance of the EFS. The NPRM proposed to require inspecting certain
EFSs and depending on the results, marking certain parts or removing
certain parts from service specified in EASA AD 2020-0064.
Discussion of Final Airworthiness Directive
Comments
The FAA gave the public the opportunity to participate in
developing this final rule. The FAA received no comments on the NPRM or
on the determination of the cost to the public.
Conclusion
The FAA reviewed the relevant data and determined that air safety
and the public interest require adopting this final rule as proposed,
except for a minor change. In the NPRM, the FAA proposed to require
actions specified in EASA AD 2020-0064 through incorporation by
reference, except for certain differences. The FAA has obtained
approval to use this process from certain manufacturers, including
Airbus Helicopters and Airbus Helicopters Deutschland GmbH (AHD);
however, the FAA has not worked with Safran Aerosystems for approval of
this process. EASA AD 2020-0064 requires using Safran Aerosystems
Service Bulletin (SB) 025-69-18, original issue (Revision 0), dated
December 11, 2019 or Revision 1, dated February 4, 2020 (SB 025-69-18
Rev 0 or SB 025-69-18 Rev 1), and allows the use of later approved
revisions, to accomplish certain actions. In this AD, a clarification
has been added into this final rule to directly use SB 025-69-18 Rev 1
or Safran Aerosystems SB 025-69-18, Revision 2, dated March 24, 2021
(SB 025-69-18 Rev 2), instead of using SB 025-69-18 Rev 0 or SB 025-69-
18 Rev 1 through incorporation by reference of EASA AD 2020-0064.
The FAA has determined that this minor change:
[[Page 57573]]
Is consistent with the intent that was proposed in the
NPRM for addressing the unsafe condition; and
Does not add any additional burden upon the public than
was already proposed in the NPRM.
Related Service Information Under 1 CFR Part 51
EASA AD 2020-0064 specifies inspecting certain EFSs and depending
on the results, marking a float supply hose with a green dot with
indelible ink if the float supply hose passes an inspection, replacing
the float supply hose with a serviceable float supply hose, or
replacing an affected EFS with a serviceable EFS. EASA AD 2020-0064
also prohibits installing a float supply hose unless it passes the
inspection and is marked.
The FAA reviewed SB 025-69-18 Rev 1 and SB 025-69-18 Rev 2, which
apply to certain Safran Aerosystems EFS and float supply hoses. Each
revision of this service information specifies procedures for
inspecting single- and multi-section EFS inflation system float supply
hoses for blockage, and depending on the results, replacing the hose
and contacting Safran Aerosystems, or marking the hose. SB 025-69-18
Rev 2 was issued to correct a list of possibly affected parts (Table
3).
This material 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.
Differences Between This AD and the EASA AD
EASA AD 2020-0064 applies to Airbus Helicopters Model EC120B,
EC175B, AS332C, AS332C1, AS332L, AS332L1, AS350B, AS350B1, AS350B2,
AS350BA, AS350BB, AS350B3, AS350D, EC130B4, EC130T2, AS355E, AS355F,
AS355F1, AS355F2, AS355N, AS355NP, SA-365N, SA-365N1, AS-365N2, AS 365
N3, EC155 B, and EC155B1 helicopters and Airbus Helicopters Deutschland
GmbH Model MBB-BK 117 C-2, MBB-BK 117 D-2, EC135P1, EC135P2, EC135P2+,
EC135P3, EC135T1, EC135T2, EC135T2+, EC135T3, EC635 P2+, EC635P3,
EC635T1, EC635T2+, and EC635T3 helicopters, whereas this AD does not
include Model AS350BB, EC175B, EC635P2+, EC635P3, EC635T1, EC635T2+,
and EC635T3 helicopters because these models are not FAA type-
certificated. Where the service information referenced in EASA AD 2020-
0064 requires certain compliance times depending on whether the
helicopter is operated over water, this AD requires compliance within
100 hours time-in-service (TIS) instead. Where the service information
referenced in EASA AD 2020-0064 specifies ``work must be performed on
the helicopter by the operator,'' this AD requires that the work be
accomplished by a mechanic that meets the requirements of 14 CFR part
65 subpart D. Where some of the service information referenced in EASA
AD 2020-0064 specifies replacing or removing an affected hose that
fails the inspection, this AD requires removing the hose from service
instead. Where some of the service information referenced in EASA AD
2020-0064 specifies to discard certain parts, this proposed AD requires
removing those parts from service instead. Where some of the service
information referenced in EASA AD 2020-0064 specifies to return the EFS
to the Safran Aerosystems network or clogged hoses to Safran
Aerosystems Services, this AD does not include those requirements.
Where the service information referenced in EASA AD 2020-0064 specifies
to submit certain information to the manufacturer, this AD does not
include that requirement.
Costs of Compliance
The FAA estimates that this AD affects 1,900 helicopters of U.S.
Registry. Labor rates are estimated at $85 per work-hour. Based on
these numbers, the FAA estimates that operators may incur the following
costs in order to comply with this AD.
Inspecting the EFS takes up to about 8 work-hours for an estimated
cost of up to $680 per helicopter and $1,292,000 for the U.S. fleet.
Replacing an EFS hose takes about 1 work-hour and parts cost
between $500 and $2,000 per hose, and up to $11,000 for a set of float
supply hoses, for an estimated cost of up to $11,085 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
This AD will not have federalism implications under Executive Order
13132. This AD will not have a substantial direct effect on the States,
on the relationship between the national government and the States, or
on the distribution of power and responsibilities among the various
levels of government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Will not affect intrastate aviation in Alaska, and
(3) 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 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:
2021-17-17 Airbus Helicopters and Airbus Helicopters Deutschland
GmbH (AHD): Amendment 39-21700; Docket No. FAA-2021-0496; Project
Identifier MCAI-2020-00393-R.
(a) Effective Date
This airworthiness directive (AD) is effective November 22,
2021.
(b) Affected Airworthiness Directives (ADs)
None.
(c) Applicability
This AD applies to the following helicopters, certificated in
any category, with an affected part as defined in European Union
Aviation Safety Agency (EASA) AD 2020-0064, dated March 19, 2020
(EASA AD 2020-0064), installed:
(1) Airbus Helicopters Model AS332C, AS332C1, AS332L, AS332L1,
AS350B,
[[Page 57574]]
AS350BA, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1,
AS355F2, AS355N, AS355NP, AS-365N2, AS 365 N3, EC120B, EC130B4,
EC130T2, EC 155B, EC155B1, SA-365N, and SA-365N1 helicopters, and
Note 1 to paragraph (c)(1): Helicopters with an AS350B3e
designation are Model AS350B3 helicopters.
(2) Airbus Helicopters Deutschland GmbH (AHD) Model EC135P1,
EC135P2, EC135P2+, EC135P3, EC135T1, EC135T2, EC135T2+, EC135T3,
MBB-BK117 C-2, and MBB-BK117 D-2 helicopters.
Note 2 to paragraph (c)(2): Helicopters with an EC135P3H
designation are Model EC135P3 helicopters. Helicopters with an
EC135T3H designation are Model EC135T3 helicopters. Helicopters with
an MBB-BK117 C-2e designation are Model MBB-BK117 C-2 helicopters.
(d) Subject
Joint Aircraft System Component (JASC) Code: 2500, Cabin
Equipment/Furnishings.
(e) Unsafe Condition
This AD was prompted by failure of an Emergency Flotation System
(EFS) float compartment to inflate during maintenance of the EFS.
The FAA is issuing this AD to address a blocked float supply hose.
The unsafe condition, if not addressed, could result in partial
inflation of an EFS float during an emergency landing on water and
subsequently preventing a timely egress from the helicopter, which
could result in injury to helicopter occupants.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Requirements
Except as specified in paragraph (h) of this AD: Comply with all
required actions and compliance times specified in, and in
accordance with, EASA AD 2020-0064.
(h) Exceptions to EASA AD 2020-0064
(1) Where EASA AD 2020-0064 refers to its effective date, this
AD requires using the effective date of this AD.
(2) Where paragraph (1) of the EASA AD requires inspecting each
affected part within the compliance time defined in section 1.E of
the applicable ASB, this AD requires inspecting each affected part
within 100 hours time-in-service (TIS) after the effective date of
this AD.
(3) Where the service information referenced in paragraph (1) of
EASA AD 2020-0064 specifies that ``the work must be performed on the
helicopter by the operator,'' this AD requires that the work be
accomplished by a mechanic that meets the requirements of 14 CFR
part 65 subpart D.
(4) Where the service information referenced in EASA AD 2020-
0064 specifies replacing or removing an affected hose that fails the
inspection, this AD requires removing the hose from service.
(5) Where the service information referenced in EASA AD 2020-
0064 specifies to discard certain parts, this AD requires removing
those parts from service.
(6) Where the service information referenced in EASA AD 2020-
0064 specifies returning the EFS to the Safran Aerosystems network
for compliance or returning clogged hoses to Safran Aerosystems
Services, this AD does not include those requirements.
(7) This AD does not mandate compliance with the ``Remarks''
section of EASA AD 2020-0064.
(i) Clarification of Required Service Information
As required by the Definitions section and paragraph (4.2) of
EASA AD 2020-0064, this AD requires using Safran Aerosystems Service
Bulletin (SB) 025-69-18, Revision 1, dated February 4, 2020, or
Safran Aerosystems SB 025-69-18, Revision 2, dated March 24, 2021.
(j) No Reporting Requirement
Although the service information referenced in EASA AD 2020-0064
specifies to submit certain information to the manufacturer, this AD
does not include that requirement.
(k) 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 (l) of
this AD. Information may be emailed to: [email protected].
(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.
(l) Related Information
For more information about this AD, contact Andrea Jimenez,
Aerospace Engineer, Airframe and Propulsion Section, FAA, New York
ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone 516-228-7330; fax 516-794-5531; email [email protected].
(m) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless this AD specifies otherwise.
(i) European Union Aviation Safety Agency (EASA) AD 2020-0064,
dated March 19, 2020.
(ii) Safran Aerosystems Service Bulletin (SB) 025-69-18,
Revision 1, dated February 4, 2020.
(iii) Safran Aerosystems SB 025-69-18, Revision 2, dated March
24, 2021.
(3) For EASA AD 2020-0064, contact the EASA, Konrad-Adenauer-
Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email
[email protected]; Internet www.easa.europa.eu. You may find this
EASA AD on the EASA website at https://ad.easa.europa.eu. For Safran
Aerosystems service information identified in this AD, contact
Safran Aerosystems, Technical Publication Department, 61 rue Pierre
Curie CS20001, 78373 Plaisir Cedex, France; telephone (33) 1 61 34
23 23; fax (33) 1 61 34 24 41; or at https://www.safran-aerosystems.com/customers-0.
(4) 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 817-222-5110. This material may be
found in the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-
2021-0496.
(5) You may view this material 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 protected], or go to https://www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued on September 16, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2021-22467 Filed 10-15-21; 8:45 am]
BILLING CODE 4910-13-P
