AD 2019-16-03
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus SAS | A350-1041 | Airworthiness Directives; Airbus SAS Airplanes |
| aircraft | Airbus SAS | A350-941 | Airworthiness Directives; Airbus SAS Airplanes |
Unsafe Condition
A case was reported by an A350-1041 operator where a front engine mount primary pin had moved axially out of place. Investigations revealed that washers with incorrect P/N had been installed on the subject engine mount pins. A350-941 aeroplanes are also considered as potentially affected. The engine mount assembly has a fail-safe design, loads are carried by two links in the left-hand and right-hand positions and in case of failure, a ``fail-safe'' link pin in the centre position is activated and takes the loads. This condition, if not detected and corrected, may lead to disengagement of a primary engine mount pin, which along with an additional failure of the ``fail-safe'' link pin, could possibly result in in-flight detachment of an engine, with consequent reduced control of the aeroplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the washers installed on the front and rear engine mount primary pins and thrust links pins of both engines, and depending on findings, accomplish applicable corrective action(s).
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Airbus SAS Model A350-941 and -1041 airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A350-941 and -1041 airplanes. This AD was prompted by a report of a front engine mount primary pin which moved axially out of place; investigation revealed that incorrect washers had been installed on the engine mount pins. This AD requires a one-time inspection of the washers installed on the front and rear engine mount primary pins and thrust link pins of both engines, depending on configuration, and corrective actions if necessary, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
Applicability Source Text
Show captured applicability text from the source AD
(c) Applicability
This AD applies to Airbus SAS Model A350-941 and -1041
airplanes, certificated in any category, as identified in European
Union Aviation Safety Agency (EASA) AD 2019-0175, dated July 19,
2019 (``EASA AD 2019-0175'').
Document Text
Show stored source text (verify against official source)
[Federal Register Volume 84, Number 163 (Thursday, August 22, 2019)]
[Rules and Regulations]
[Pages 43676-43679]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2019-17975]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2019-0606; Product Identifier 2019-NM-120-AD; Amendment
39-19706; AD 2019-16-03]
RIN 2120-AA64
Airworthiness Directives; Airbus SAS 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 Airbus SAS Model A350-941 and -1041 airplanes. This AD was
prompted by a report of a front engine mount primary pin which moved
axially out of place; investigation revealed that incorrect washers had
been installed on the engine mount pins. This AD requires a one-time
inspection of the washers installed on the front and rear engine mount
primary pins and thrust link pins of both engines, depending on
configuration, and corrective actions if necessary, as specified in a
European Union Aviation Safety Agency (EASA) AD, which is incorporated
by reference. The FAA is issuing this AD to address the unsafe
condition on these products.
DATES: This AD becomes effective September 6, 2019.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of September 6,
2019.
The FAA must receive comments on this AD by October 7, 2019.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
<bullet> Federal eRulemaking Portal: Go to <a href="http://www.regulations.gov">http://www.regulations.gov</a>. Follow the instructions for submitting comments.
<bullet> Fax: 202-493-2251.
<bullet> 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.
<bullet> Hand Delivery: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590, between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays.
For the material incorporated by reference (IBR) in this AD,
contact the EASA, at Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany;
telephone +49 221 89990 1000; email <a href="/cdn-cgi/l/email-protection#3f7e7b4c7f5a5e4c5e115a4a4d504f5e115a4a"><span class="__cf_email__" data-cfemail="0c4d487f4c696d7f6d2269797e637c6d226979">[email protected]</span></a>; internet
www.easa.europa.eu. You may find this IBR material on the EASA website
at <a href="https://ad.easa.europa.eu">https://ad.easa.europa.eu</a>. You may view this IBR material at the
FAA, Transport Standards 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 on the internet at
<a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating Docket No.
FAA-2019-0606.
Examining the AD Docket
You may examine the AD docket on the internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating Docket No. FAA-2019-
0606; 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 AD, the regulatory evaluation, any comments received, and other
information. The street address for Docket Operations is listed above.
Comments will be available in the AD docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Kathleen Arrigotti, Aerospace
Engineer, International Section, Transport Standards Branch, FAA, 2200
South 216th St., Des Moines, WA 98198; telephone and fax: 206-231-3218.
SUPPLEMENTARY INFORMATION:
Discussion
The EASA, which is the Technical Agent for the Member States of the
European Union, has issued EASA AD 2019-0175, dated July 19, 2019
(``EASA AD 2019-0175'') (also referred to as the Mandatory Continuing
Airworthiness Information, or ``the MCAI''), to correct an unsafe
condition for certain Airbus SAS Model A350-941 and -1041 airplanes.
The MCAI states:
A case was reported by an A350-1041 operator where a front
engine mount primary pin had moved axially out of place.
Investigations revealed that washers with incorrect P/N [part
number] had been installed on the subject engine mount pins. A350-
941 aeroplanes are also considered as potentially affected. The
engine mount assembly has a fail-safe design, loads are carried by
two links in the left-hand and right-hand positions and in case of
failure, a ``fail-safe'' link pin in the centre position is
activated and takes the loads.
This condition, if not detected and corrected, may lead to
disengagement of a primary engine mount pin, which along with an
additional failure of the ``fail-safe'' link pin, could possibly
result in in-flight detachment of an engine, with consequent reduced
control of the aeroplane.
To address this potential unsafe condition, Airbus issued the
AOT [All Operators Transmission] to provide inspection instructions.
For the reasons described above, this [EASA] AD requires a one-
time inspection of the washers installed on the front and rear
engine mount primary pins and thrust links pins of both engines, and
depending on findings, accomplishment of applicable corrective
action(s).
Related IBR Material Under 1 CFR Part 51
EASA AD 2019-0175 describes procedures for a one-time inspection of
the washers installed on the front and rear engine mount primary pins
and thrust link pins of both engines, depending on configuration, and
corrective actions. Corrective actions include replacing any affected
washer with a serviceable part and repair.
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
[[Page 43677]]
country, and is approved for operation in the United States. Pursuant
to a bilateral agreement with the State of Design Authority, the FAA
has been notified of the unsafe condition described in the MCAI
referenced above. The FAA is issuing this AD because the agency
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 accomplishing the actions specified in EASA AD
2019-0175 described previously, as incorporated by reference, except
for any differences identified as exceptions in the regulatory text of
this AD. This AD also requires sending the inspection results to
Airbus.
Explanation of Required Compliance Information
In the FAA's ongoing efforts to improve the efficiency of the AD
process, the FAA worked with Airbus and EASA to develop a process to
use certain EASA ADs as the primary source of information for
compliance with requirements for corresponding FAA ADs. As a result,
EASA AD 2019-0175 will be incorporated by reference in the FAA final
rule. This AD, therefore, requires compliance with EASA AD 2019-0175 in
its entirety, through that incorporation, except for any differences
identified as exceptions in the regulatory text of this AD. Using
common terms that are the same as the heading of a particular section
in the EASA AD 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 the EASA AD. Service information specified in EASA AD
2019-0175 that is required for compliance with EASA AD 2019-0175 will
be available on the internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching
for and locating Docket No. FAA-2019-0606 after the FAA final rule is
published.
FAA's Justification and Determination of the Effective Date
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 waiving notice and comment prior to adoption of this rule
because the unsafe condition could result in the in-flight detachment
of an engine, and consequent reduced control of the airplane.
Therefore, the FAA finds good cause that notice and opportunity for
prior public comment are impracticable. In addition, for the reasons
stated above, the FAA finds that good cause exists for making this
amendment effective in less than 30 days.
Comments Invited
This AD is a final rule that involves requirements affecting flight
safety, and the FAA did not precede it by notice and opportunity for
public comment. The FAA invites you to send any written relevant data,
views, or arguments about this AD. Send your comments to an address
listed under the ADDRESSES section. Include ``Docket No. FAA-2019-0606;
Product Identifier 2019-NM-120-AD'' at the beginning of your comments.
The FAA specifically invites comments on the overall regulatory,
economic, environmental, and energy aspects of this AD. The FAA will
consider all comments received by the closing date and may amend this
AD based on those comments.
The FAA will post all comments received, without change, to <a href="http://www.regulations.gov">http://www.regulations.gov</a>, including any personal information you provide.
The FAA will also post a report summarizing each substantive verbal
contact received about this AD.
Costs of Compliance
The FAA estimates that this AD affects 13 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs for Required Actions *
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
4 work-hours x $85 per hour = $340........................... $0 $340 $4,420
----------------------------------------------------------------------------------------------------------------
* Table does not include estimated costs for reporting.
We estimate that it would take about 1 work-hour per product to
comply with the reporting requirement in this AD. The average labor
rate is $85 per hour. Based on these figures, we estimate the cost of
reporting the inspection results on U.S. operators to be $1,105, or $85
per product.
The FAA has received no definitive data that would enable the
agency to provide cost estimates for the on-condition actions specified
in this AD.
Paperwork Reduction Act
A federal agency may not conduct or sponsor, and a person is not
required to respond to, nor shall a person be subject to penalty for
failure to comply with a collection of information subject to the
requirements of the Paperwork Reduction Act unless that collection of
information displays a current valid OMB control number. The control
number for the collection of information required by this AD is 2120-
0056. The paperwork cost associated with this AD has been detailed in
the Costs of Compliance section of this document and includes time for
reviewing instructions, as well as completing and reviewing the
collection of information. Therefore, all reporting associated with
this AD is mandatory. Comments concerning the accuracy of this burden
and suggestions for reducing the burden should be directed to the FAA
at 800 Independence Ave. SW, Washington, DC 20591, ATTN: Information
Collection Clearance Officer, AES-200.
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
[[Page 43678]]
unsafe condition that is likely to exist or develop on products
identified in this rulemaking action.
This AD is issued in accordance with authority delegated by the
Executive Director, Aircraft Certification Service, as authorized by
FAA Order 8000.51C. In accordance with that order, issuance of ADs is
normally a function of the Compliance and Airworthiness Division, but
during this transition period, the Executive Director has delegated the
authority to issue ADs applicable to transport category airplanes and
associated appliances to the Director of the System Oversight Division.
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,
(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.
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 (AD):
2019-16-03 Airbus SAS: Amendment 39-19706; Docket No. FAA-2019-0606;
Product Identifier 2019-NM-120-AD.
(a) Effective Date
This AD becomes effective September 6, 2019.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Airbus SAS Model A350-941 and -1041
airplanes, certificated in any category, as identified in European
Union Aviation Safety Agency (EASA) AD 2019-0175, dated July 19,
2019 (``EASA AD 2019-0175'').
(d) Subject
Air Transport Association (ATA) of America Code 71, Power Plant.
(e) Reason
This AD was prompted by a report of a front engine mount primary
pin which moved axially out of place; investigation revealed that
incorrect washers had been installed on the engine mount pins. The
FAA is issuing this AD to address disengagement of a primary engine
mount pin, which, along with an additional failure of the ``fail-
safe'' link pin, could result in the in-flight detachment of an
engine, and consequent reduced 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, EASA AD 2019-0175.
(h) Exceptions to EASA AD 2019-0175
(1) For purposes of determining compliance with the requirements
of this AD: Where EASA AD 2019-0175 refers to its effective date,
this AD requires using the effective date of this AD.
(2) Paragraph (4) of EASA AD 2019-0175 specifies to report
inspection results to Airbus within a certain compliance time. For
this AD, report inspection results at the applicable time specified
in paragraph (h)(2)(i) or (h)(2)(ii) of this AD.
(i) If the inspection was done on or after the effective date of
this AD: Submit the report within 60 days after the inspection.
(ii) If the inspection was done before the effective date of
this AD: Submit the report within 60 days after the effective date
of this AD.
(3) The ``Remarks'' section of EASA AD 2019-0175 does not apply
to this AD.
(i) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
International Section, Transport Standards 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 International Section, send it to the attention of
the person identified in paragraph (j) of this AD. Information may
be emailed to: <a href="/cdn-cgi/l/email-protection#84bda9c5cac9a9b5b5b2a9c5c9cbc7a9d6c1d5d1c1d7d0d7c4e2e5e5aae3ebf2"><span class="__cf_email__" data-cfemail="88b1a5c9c6c5a5b9b9bea5c9c5c7cba5dacdd9ddcddbdcdbc8eee9e9a6efe7fe">[email protected]</span></a>. 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.
(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, International
Section, Transport Standards 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.
(3) Required for Compliance (RC): For any service information
referenced in EASA AD 2019-0175 that contains RC procedures and
tests: Except as required by paragraph (i)(2) of this AD, RC
procedures and tests must be done to comply with this AD; any
procedures or tests that are not identified as RC are recommended.
Those procedures and tests that are not identified as RC may be
deviated from using accepted methods in accordance with the
operator's maintenance or inspection program without obtaining
approval of an AMOC, provided the procedures and tests identified as
RC can be done and the airplane can be put back in an airworthy
condition. Any substitutions or changes to procedures or tests
identified as RC require approval of an AMOC.
(4) Paperwork Reduction Act Burden Statement: A federal agency
may not conduct or sponsor, and a person is not required to respond
to, nor shall a person be subject to a penalty for failure to comply
with a collection of information subject to the requirements of the
Paperwork Reduction Act unless that collection of information
displays a current valid OMB Control Number. The OMB Control Number
for this information collection is 2120-0056. Public reporting for
this collection of information is estimated to be approximately 1
hour per response, including the time for reviewing instructions,
completing and reviewing the collection of information. All
responses to this collection of information are mandatory. Comments
concerning the accuracy of this burden and suggestions for reducing
the burden should be directed to the FAA at: 800 Independence Ave.
SW, Washington, DC 20591, Attn: Information Collection Clearance
Officer, AES-200.
(j) Related Information
For more information about this AD, contact Kathleen Arrigotti,
Aerospace Engineer, International Section, Transport Standards
Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone
and fax: 206-231-3218.
(k) 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 2019-0175,
dated July 19, 2019.
[[Page 43679]]
(ii) [Reserved]
(3) For EASA AD 2019-0175, contact the EASA, at Konrad-Adenauer-
Ufer 3, 50668 Cologne, Germany; telephone +49 221 89990 6017; email
<a href="/cdn-cgi/l/email-protection#aeefeaddeecbcfddcf80cbdbdcc1decf80cbdb"><span class="__cf_email__" data-cfemail="6f2e2b1c2f0a0e1c0e410a1a1d001f0e410a1a">[email protected]</span></a>; internet www.easa.europa.eu. You may find this
EASA AD on the EASA website at <a href="https://ad.easa.europa.eu">https://ad.easa.europa.eu</a>.
(4) You may view this EASA AD at the FAA, Transport Standards
Branch, 2200 South 216th St., Des Moines, WA. For information on the
availability of this material at the FAA, call 206-231-3195. EASA AD
2019-0175 may be found in the AD docket on the internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating Docket No. FAA-
2019-0606.
(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, call 202-
741-6030, or go to: <a href="http://www.archives.gov/federal-register/cfr/ibr-locations.html">http://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued in Des Moines, Washington, on August 8, 2019.
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification
Service.
[FR Doc. 2019-17975 Filed 8-21-19; 8:45 am]
BILLING CODE 4910-13-P
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.
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