Airworthiness Directives; Airbus SAS Airplanes, 55737-55739 [2022-19442]
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Federal Register / Vol. 87, No. 175 / Monday, September 12, 2022 / Proposed Rules
flightcrew does not receive an indication of
low pressure, which, in the event of a fire in
the cargo bay, could lead to an uncontrollable
fire and loss of the airplane.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Replacement
Within 10 years after the effective date of
this AD: Replace the high rate of discharge
and low rate of discharge pressure switch
gauge assemblies for any cargo bay fire
extinguisher container having part number
(P/N) 473919–1, P/N 473920–1, and P/N
474901–1, manufactured prior to March 2020
as indicated on the identification plate, with
a serviceable part number, in accordance
with the Accomplishment Instructions of
MHI RJ Aviation ULC Service Bulletin
670BA–26–013, dated October 8, 2021.
(h) Parts Installation Prohibition
As of 10 years after the effective date of
this AD, or before further flight after the
replacement has been done in paragraph (g)
of this AD, whichever occurs first, no person
may install, on any airplane, a cargo bay fire
extinguisher container having P/N 473919–1,
P/N 473920–1, or P/N 474901–1,
manufactured prior to March 2020 as
indicated on the identification plate, unless
‘‘CW SB Fire Extinguisher-26–1’’ is identified
on the identification plate.
lotter on DSK11XQN23PROD with PROPOSALS1
(i) No Return of Part Requirement
The Accomplishment Instructions of MHI
RJ Aviation ULC Service Bulletin 670BA–26–
013, dated October 8, 2021, specify to return
the cargo fire extinguisher containers to the
manufacturer, this AD does not include that
requirement.
(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 principal inspector or
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
516–228–7300; fax 516–794–5531. 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 MHI RJ Aviation ULC’s TCCA
Design Approval Organization (DAO). If
approved by the DAO, the approval must
include the DAO-authorized signature.
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(k) Related Information
(1) Refer to Mandatory Continuing
Airworthiness Information (MCAI) Transport
Canada Civil Aviation AD CF–2022–20,
dated April 19, 2022, for related information.
This MCAI may be found in the AD docket
on the internet at regulations.gov by
searching for and locating Docket No. FAA–
2022–1154.
(2) For more information about this AD,
contact Gabriel Kim, Aerospace Engineer,
Mechanical Systems and Administrative
Services Section, FAA, New York ACO
Branch, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516–228–
7300; email 9-avs-nyaco-cos@faa.gov.
(3) For service information identified in
this AD, contact MHI RJ Aviation Group,
Customer Response Center, 3655 Ave. des
Grandes-Tourelles, Suite 110, Boisbriand,
Que´bec J7H 0E2 Canada; North America tollfree telephone 833–990–7272 or direct-dial
telephone 450–990–7272; fax 514–855–8501;
email thd.crj@mhirj.com; internet mhirj.com.
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
206–231–3195.
Issued on September 2, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2022–19448 Filed 9–9–22; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2022–1155; Project
Identifier MCAI–2022–00655–T]
RIN 2120–AA64
Airworthiness Directives; Airbus SAS
Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
The FAA proposes to adopt a
new airworthiness directive (AD) for all
Airbus SAS Model A321–251N, A321–
251NX, A321–252N, A321–252NX,
A321–253N, and A321–253NX
airplanes. This proposed AD was
prompted by a stress analysis on the
engine structure that indicated that the
fail-safe lug may not be able to sustain,
during one inspection interval as
currently specified in an airworthiness
limitations item, the loads deriving from
the engagement of the secondary load
path within that inspection interval for
the aft engine mount system. This
proposed AD would require repetitive
SUMMARY:
PO 00000
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55737
detailed inspections of the aft engine
mount and secondary load path
clearance fail-safe pin and replacement
of the engine if necessary, as specified
in a European Union Aviation Safety
Agency (EASA) AD, which is proposed
for incorporation by reference. 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 October 27,
2022.
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
regulations.gov. Follow the instructions
for submitting comments.
• Fax: 202–493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE,
Washington, DC 20590.
• Hand Delivery: Deliver to Mail
address above between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
For material that will be incorporated
by reference (IBR) in this AD, contact
EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; telephone +49 221
8999 000; email ADs@easa.europa.eu;
internet easa.europa.eu. You may find
this material on the EASA website at
ad.easa.europa.eu. You may view this
material 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 206–231–3195. It is also available in
the AD docket at regulations.gov by
searching for and locating Docket No.
FAA–2022–1155.
Examining the AD Docket
You may examine the AD docket at
regulations.gov by searching for and
locating Docket No. FAA–2022–1155; 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
mandatory continuing airworthiness
information (MCAI), any comments
received, and other information. The
street address for Docket Operations is
listed above.
FOR FURTHER INFORMATION CONTACT: Dan
Rodina, Aerospace Engineer, Large
Aircraft Section, International
Validation Branch, FAA, 2200 South
216th Street, Des Moines, WA 98198;
telephone and fax 206–231–3225; email
dan.rodina@faa.gov.
SUPPLEMENTARY INFORMATION:
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Federal Register / Vol. 87, No. 175 / Monday, September 12, 2022 / Proposed Rules
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–2022–1155; Project Identifier
MCAI–2022–00655–T’’ 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
regulations.gov, including any personal
information you provide. The agency
will also post a report summarizing each
substantive verbal contact received
about this NPRM.
lotter on DSK11XQN23PROD with PROPOSALS1
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 Dan Rodina,
Aerospace Engineer, Large Aircraft
Section, International Validation
Branch, FAA, 2200 South 216th Street,
Des Moines, WA 98198; telephone and
fax 206–231–3225; email dan.rodina@
faa.gov. 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 2022–0089,
dated May 17, 2022 (EASA AD 2022–
0089) (also referred to as the MCAI), to
correct an unsafe condition for all
Airbus SAS Model A321–251N, A321–
251NX, A321–252N, A321–252NX,
A321–253N, and A321–253NX
airplanes.
This proposed AD was prompted by
a weakness identified by the
manufacturer in the design of the CFM
LEAP–1A aft engine mount waiting failsafe male lug on the engine side. During
a stress analysis on the engine structure,
CFM discovered that the fail-safe lug
may not be able to sustain, during one
inspection interval, as currently
specified in airworthiness limitation
item (ALI) task 712232–01–1, the loads
deriving from the engagement of the
secondary load path within that
inspection interval for the aft engine
mount system. Consequently, the
inspection interval must be reduced
accordingly in order to meet the
predicted life of the fail-safe lug. The
FAA is proposing this AD to address
potential failure of the LEAP–1A aft
engine mount waiting fail-safe male lug,
which could lead to engine mount
rupture, possibly resulting in engine
loss during flight and loss of control of
the airplane. See the MCAI for
additional background information.
Related Service Information Under 1
CFR Part 51
EASA AD 2022–0089 specifies
procedures for repetitive detailed
inspections (DET) for discrepancies of
the aft engine mount and secondary
load path clearance fail-safe pin for each
engine, and replacement of any engine
with discrepant findings on the
secondary load path clearance check.
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.
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, it has notified the
FAA of the unsafe condition described
in the MCAI referenced above. The FAA
is issuing this NPRM after determining
that the unsafe condition described
previously is likely to exist or develop
in other products of the same type
design.
Proposed AD Requirements in This
NPRM
This proposed AD would require
accomplishing the actions specified in
EASA AD 2022–0089 described
previously, except for any differences
identified as exceptions in the
regulatory text of this proposed AD.
Explanation of Required Compliance
Information
In the FAA’s ongoing efforts to
improve the efficiency of the AD
process, the FAA developed a process to
use some civil aviation authority (CAA)
ADs as the primary source of
information for compliance with
requirements for corresponding FAA
ADs. The FAA has been coordinating
this process with manufacturers and
CAAs. As a result, the FAA proposes to
incorporate EASA AD 2022–0089 by
reference in the FAA final rule. This
proposed AD would, therefore, require
compliance with EASA AD 2022–0089
in its entirety through that
incorporation, except for any differences
identified as exceptions in the
regulatory text of this proposed AD.
Using common terms that are the same
as the heading of a particular section in
EASA AD 2022–0089 does not mean
that operators need comply only with
that section. For example, where the AD
requirement refers to ‘‘all required
actions and compliance times,’’
compliance with this AD requirement is
not limited to the section titled
‘‘Required Action(s) and Compliance
Time(s)’’ in EASA AD 2022–0089.
Service information required by EASA
AD 2022–0089 for compliance will be
available at regulations.gov by searching
for and locating Docket No. FAA–2022–
1155 after the FAA final rule is
published.
Costs of Compliance
The FAA estimates that this proposed
AD would affect 156 airplanes of U.S.
registry. The FAA estimates the
following costs to comply with this
proposed AD:
ESTIMATED COSTS FOR REQUIRED ACTIONS
Labor cost
Up to 4 work-hours × $85 per hour = $340 ...................................................................................
VerDate Sep<11>2014
16:33 Sep 09, 2022
Jkt 256001
PO 00000
Cost per
product
Parts cost
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$0
12SEP1
Up to $340
Cost on U.S.
operators
Up to $53,040
Federal Register / Vol. 87, No. 175 / Monday, September 12, 2022 / Proposed Rules
The FAA estimates that it would take
64 work-hours (at $85 per work-hour) to
replace an engine, if required based on
the results of any required actions. The
FAA has received no definitive data on
which to base the estimate for the cost
of a replacement engine or any
necessary additional on-condition
actions that would be required by this
proposed AD. The FAA has no way of
determining the number of aircraft that
might need these on-condition actions.
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.
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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 above, 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,
VerDate Sep<11>2014
16:33 Sep 09, 2022
Jkt 256001
the FAA proposes to amend 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:
■
Airbus SAS: Docket No. FAA–2022–1155;
Project Identifier MCAI–2022–00655–T.
(a) Comments Due Date
The FAA must receive comments on this
airworthiness directive (AD) by October 27,
2022.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Airbus SAS Model
A321–251N, A321–251NX, A321–252N,
A321–252NX, A321–253N, and A321–253NX
airplanes, certificated in any category.
(d) Subject
Air Transport Association (ATA) of
America Code 71, Powerplant.
(e) Unsafe Condition
This AD was prompted by a stress analysis
on the engine structure that indicated that
the fail-safe lug may not be able to sustain,
during one inspection interval, as currently
specified in airworthiness limitation item
(ALI) task 712232–01–1, the loads deriving
from the engagement of the secondary load
path within that inspection interval for the
aft engine mount system. The FAA is issuing
this AD to address potential failure of the
LEAP–1A aft engine mount waiting fail-safe
male lug, which could lead to engine mount
rupture, possibly resulting in engine loss
during flight and loss of control of the
airplane.
(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, European Union Aviation
Safety Agency (EASA) AD 2022–0089, dated
May 17, 2022 (EASA AD 2022–0089).
(h) Exceptions to EASA AD 2022–0089
(1) Where paragraph (3) of EASA AD 2022–
0089 specifies corrective action if
‘‘discrepancies are detected, as defined in the
SB,’’ for purposes of this AD, discrepancies
include a fail safe pin that does not rotate
freely, or has damage (dents, scratches, nicks,
corrosion, or cracks).
(2) The ‘‘Remarks’’ section of EASA AD
2022–0089 does not apply to this AD.
PO 00000
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55739
(i) Additional AD Provisions
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, 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 responsible Flight Standards Office, as
appropriate. If sending information directly
to the Large Aircraft Section, International
Validation Branch, send it to the attention of
the person identified in paragraph (j)(2) of
this AD. Information may be emailed to: 9AVS-AIR-730-AMOC@faa.gov. 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, Large Aircraft Section,
International Validation Branch, FAA; or
EASA; or Airbus SAS’s EASA Design
Organization Approval (DOA). If approved by
the DOA, the approval must include the
DOA-authorized signature.
(j) Related Information
(1) For EASA AD 2022–0089, contact
EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; telephone +49 221 8999
000; email ADs@easa.europa.eu; internet
easa.europa.eu. You may find this EASA AD
on the EASA website atad.easa.europa.eu.
You may view this material 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
206–231–3195. This material may be found
in the AD docket at regulations.gov by
searching for and locating Docket No. FAA–
2022–1155.
(2) For more information about this AD,
contact Dan Rodina, Aerospace Engineer,
Large Aircraft Section, International
Validation Branch, FAA, 2200 South 216th
Street, Des Moines, WA 98198; telephone
and fax 206–231–3225; email dan.rodina@
faa.gov.
Issued on September 2, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2022–19442 Filed 9–9–22; 8:45 am]
BILLING CODE 4910–13–P
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 52
[EPA–R07–OAR–2022–0746; FRL–10184–
01–R7]
Air Plan Approval; MO; Restriction of
Visible Air Contaminant Emissions
Environmental Protection
Agency (EPA).
AGENCY:
E:\FR\FM\12SEP1.SGM
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]]>Agencies
[Federal Register Volume 87, Number 175 (Monday, September 12, 2022)]
[Proposed Rules]
[Pages 55737-55739]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-19442]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-1155; Project Identifier MCAI-2022-00655-T]
RIN 2120-AA64
Airworthiness Directives; Airbus SAS Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for all Airbus SAS Model A321-251N, A321-251NX, A321-252N, A321-252NX,
A321-253N, and A321-253NX airplanes. This proposed AD was prompted by a
stress analysis on the engine structure that indicated that the fail-
safe lug may not be able to sustain, during one inspection interval as
currently specified in an airworthiness limitations item, the loads
deriving from the engagement of the secondary load path within that
inspection interval for the aft engine mount system. This proposed AD
would require repetitive detailed inspections of the aft engine mount
and secondary load path clearance fail-safe pin and replacement of the
engine if necessary, as specified in a European Union Aviation Safety
Agency (EASA) AD, which is proposed for incorporation by reference. 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 October 27,
2022.
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 regulations.gov. Follow
the instructions for submitting comments.
Fax: 202-493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For material that will be incorporated by reference (IBR) in this
AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany;
telephone +49 221 8999 000; email [email protected]; internet
easa.europa.eu. You may find this material on the EASA website at
ad.easa.europa.eu. You may view this material 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 206-231-3195. It is also available in the AD docket at
regulations.gov by searching for and locating Docket No. FAA-2022-1155.
Examining the AD Docket
You may examine the AD docket at regulations.gov by searching for
and locating Docket No. FAA-2022-1155; 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 mandatory
continuing airworthiness information (MCAI), any comments received, and
other information. The street address for Docket Operations is listed
above.
FOR FURTHER INFORMATION CONTACT: Dan Rodina, Aerospace Engineer, Large
Aircraft Section, International Validation Branch, FAA, 2200 South
216th Street, Des Moines, WA 98198; telephone and fax 206-231-3225;
email [email protected].
SUPPLEMENTARY INFORMATION:
[[Page 55738]]
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-2022-1155; Project Identifier
MCAI-2022-00655-T'' 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
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 Dan
Rodina, Aerospace Engineer, Large Aircraft Section, International
Validation Branch, FAA, 2200 South 216th Street, Des Moines, WA 98198;
telephone and fax 206-231-3225; email [email protected]. 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 2022-0089, dated May 17, 2022 (EASA
AD 2022-0089) (also referred to as the MCAI), to correct an unsafe
condition for all Airbus SAS Model A321-251N, A321-251NX, A321-252N,
A321-252NX, A321-253N, and A321-253NX airplanes.
This proposed AD was prompted by a weakness identified by the
manufacturer in the design of the CFM LEAP-1A aft engine mount waiting
fail-safe male lug on the engine side. During a stress analysis on the
engine structure, CFM discovered that the fail-safe lug may not be able
to sustain, during one inspection interval, as currently specified in
airworthiness limitation item (ALI) task 712232-01-1, the loads
deriving from the engagement of the secondary load path within that
inspection interval for the aft engine mount system. Consequently, the
inspection interval must be reduced accordingly in order to meet the
predicted life of the fail-safe lug. The FAA is proposing this AD to
address potential failure of the LEAP-1A aft engine mount waiting fail-
safe male lug, which could lead to engine mount rupture, possibly
resulting in engine loss during flight and loss of control of the
airplane. See the MCAI for additional background information.
Related Service Information Under 1 CFR Part 51
EASA AD 2022-0089 specifies procedures for repetitive detailed
inspections (DET) for discrepancies of the aft engine mount and
secondary load path clearance fail-safe pin for each engine, and
replacement of any engine with discrepant findings on the secondary
load path clearance check.
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.
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, it
has notified the FAA of the unsafe condition described in the MCAI
referenced above. The FAA is issuing this NPRM after determining that
the unsafe condition described previously is likely to exist or develop
in other products of the same type design.
Proposed AD Requirements in This NPRM
This proposed AD would require accomplishing the actions specified
in EASA AD 2022-0089 described previously, except for any differences
identified as exceptions in the regulatory text of this proposed AD.
Explanation of Required Compliance Information
In the FAA's ongoing efforts to improve the efficiency of the AD
process, the FAA developed a process to use some civil aviation
authority (CAA) ADs as the primary source of information for compliance
with requirements for corresponding FAA ADs. The FAA has been
coordinating this process with manufacturers and CAAs. As a result, the
FAA proposes to incorporate EASA AD 2022-0089 by reference in the FAA
final rule. This proposed AD would, therefore, require compliance with
EASA AD 2022-0089 in its entirety through that incorporation, except
for any differences identified as exceptions in the regulatory text of
this proposed AD. Using common terms that are the same as the heading
of a particular section in EASA AD 2022-0089 does not mean that
operators need comply only with that section. For example, where the AD
requirement refers to ``all required actions and compliance times,''
compliance with this AD requirement is not limited to the section
titled ``Required Action(s) and Compliance Time(s)'' in EASA AD 2022-
0089. Service information required by EASA AD 2022-0089 for compliance
will be available at regulations.gov by searching for and locating
Docket No. FAA-2022-1155 after the FAA final rule is published.
Costs of Compliance
The FAA estimates that this proposed AD would affect 156 airplanes
of U.S. registry. The FAA estimates the following costs to comply with
this proposed AD:
Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
Labor cost Parts cost Cost per product Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
Up to 4 work-hours x $85 per hour = $0 Up to $340............... Up to $53,040
$340.
----------------------------------------------------------------------------------------------------------------
[[Page 55739]]
The FAA estimates that it would take 64 work-hours (at $85 per
work-hour) to replace an engine, if required based on the results of
any required actions. The FAA has received no definitive data on which
to base the estimate for the cost of a replacement engine or any
necessary additional on-condition actions that would be required by
this proposed AD. The FAA has no way of determining the number of
aircraft that might need these on-condition actions.
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 above, 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:
Airbus SAS: Docket No. FAA-2022-1155; Project Identifier MCAI-2022-
00655-T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by October 27, 2022.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Airbus SAS Model A321-251N, A321-251NX,
A321-252N, A321-252NX, A321-253N, and A321-253NX airplanes,
certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 71, Powerplant.
(e) Unsafe Condition
This AD was prompted by a stress analysis on the engine
structure that indicated that the fail-safe lug may not be able to
sustain, during one inspection interval, as currently specified in
airworthiness limitation item (ALI) task 712232-01-1, the loads
deriving from the engagement of the secondary load path within that
inspection interval for the aft engine mount system. The FAA is
issuing this AD to address potential failure of the LEAP-1A aft
engine mount waiting fail-safe male lug, which could lead to engine
mount rupture, possibly resulting in engine loss during flight and
loss of control of the airplane.
(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, European Union Aviation Safety Agency (EASA) AD
2022-0089, dated May 17, 2022 (EASA AD 2022-0089).
(h) Exceptions to EASA AD 2022-0089
(1) Where paragraph (3) of EASA AD 2022-0089 specifies
corrective action if ``discrepancies are detected, as defined in the
SB,'' for purposes of this AD, discrepancies include a fail safe pin
that does not rotate freely, or has damage (dents, scratches, nicks,
corrosion, or cracks).
(2) The ``Remarks'' section of EASA AD 2022-0089 does not apply
to this AD.
(i) Additional AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, 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 responsible
Flight Standards Office, as appropriate. If sending information
directly to the Large Aircraft Section, International Validation
Branch, send it to the attention of the person identified in
paragraph (j)(2) of this AD. Information may be emailed to: [email protected]. Before using any approved AMOC, notify your
appropriate principal inspector, or lacking a principal inspector,
the manager of the 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, Large Aircraft
Section, International Validation Branch, FAA; or EASA; or Airbus
SAS's EASA Design Organization Approval (DOA). If approved by the
DOA, the approval must include the DOA-authorized signature.
(j) Related Information
(1) For EASA AD 2022-0089, contact EASA, Konrad-Adenauer-Ufer 3,
50668 Cologne, Germany; telephone +49 221 8999 000; email
[email protected]; internet easa.europa.eu. You may find this EASA
AD on the EASA website atad.easa.europa.eu. You may view this
material 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 206-231-3195.
This material may be found in the AD docket at regulations.gov by
searching for and locating Docket No. FAA-2022-1155.
(2) For more information about this AD, contact Dan Rodina,
Aerospace Engineer, Large Aircraft Section, International Validation
Branch, FAA, 2200 South 216th Street, Des Moines, WA 98198;
telephone and fax 206-231-3225; email [email protected].
Issued on September 2, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2022-19442 Filed 9-9-22; 8:45 am]
BILLING CODE 4910-13-P
