Airworthiness Directives; Airbus SAS Airplanes
| Citation | 84 FR 37162 |
| Record Number | 2019-16132 |
| Published date | 31 July 2019 |
| Court | Federal Aviation Administration |
Federal Register, Volume 84 Issue 147 (Wednesday, July 31, 2019)
[Federal Register Volume 84, Number 147 (Wednesday, July 31, 2019)]
[Proposed Rules]
[Pages 37162-37165]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-16132]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2019-0580; Product Identifier 2019-NM-019-AD]
RIN 2120-AA64
Airworthiness Directives; Airbus SAS Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for all Airbus SAS Model A330-243, -243F, -341, -342, and -343
airplanes. This proposed AD was prompted by a determination that cracks
can develop on the ripple damper weld of the hydraulic pressure tube
assembly and reports of failure of the ripple damper of the hydraulic
pressure tube assembly. This proposed AD would require replacement of
the affected hydraulic pressure tube assembly or modification of both
engines, as specified in a European Aviation Safety Agency (EASA) AD,
which will be incorporated 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 September
16, 2019.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
Fax: 202-493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For the material identified in this proposed AD that will be
incorporated by reference (IBR), contact the EASA, at Konrad-Adenauer-
Ufer 3, 50668 Cologne, Germany; telephone +49 221 89990 1000; email
[email protected]; internet www.easa.europa.eu. You may find this IBR
material on the EASA website at https://ad.easa.europa.eu. 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 http://www.regulations.gov by searching for
and locating Docket No. FAA-2019-0580.
Examining the AD Docket
You may examine the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2019-
0580; 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
[[Page 37163]]
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: Vladimir Ulyanov, Aerospace Engineer,
International Section, Transport Standards Branch, FAA, 2200 South
216th St., Des Moines, WA 98198; telephone and fax 206-231-3229.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under the ADDRESSES section. Include ``Docket No. FAA-2019-0580;
Product Identifier 2019-NM-019-AD'' at the beginning of your comments.
The FAA specifically invites comments on the overall regulatory,
economic, environmental, and energy aspects of this NPRM. The FAA will
consider all comments received by the closing date and may amend this
NPRM based on those comments.
The FAA will post all comments received, without change, to http://www.regulations.gov, including any personal information you provide.
The FAA will also post a report summarizing each substantive verbal
contact received about this NPRM.
Discussion
The EASA, which is the Technical Agent for the Member States of the
European Union, has issued EASA AD 2019-0031, dated February 13, 2019
(``EASA AD 2019-0031'') (also referred to as the Mandatory Continuing
Airworthiness Information, or ``the MCAI''), to correct an unsafe
condition for all Airbus SAS Model A330-243, -243F, -341, -342, and -
343 airplanes. The MCAI states:
Following introduction in-service of Airbus mod 205242, a new
hydraulic pressure tube assembly P/N [part number] AE711121-18 was
installed, one on each engine, with an integral ripple damper. It
was determined that, at a relatively low number of cycles, cracks
could develop on the ripple damper weld of this new hydraulic
pressure tube, which could lead to hydraulic leakage and consequent
loss of the green hydraulic system. Further to the installation on
both engines of this new hydraulic pressure tube assembly, a high
failure rate of the affected dampers has been reported that, if
continued, may exceed the overall safety objective of this certified
design.
This condition, if not corrected, could, in combination with
other system failures, result in reduced control of the aeroplane.
Prompted by these findings, Airbus published AOT [Alert
Operators Transmission] A71L012-16 Rev 01, to provide instructions
to replace the hydraulic pressure tube assembly P/N AE711121-18 with
an improved assembly P/N AE711121-18 Rev A (introduced by Airbus mod
206979), equipped with a double-welded ripple damper. Consequently,
EASA issued AD 2017-0041 [which corresponds to FAA AD 2017-07-03,
Amendment 39-18841 (82 FR 15985, March 31, 2017); corrected April
13, 2017 (82 FR 17749) (``AD 2017-07-03'')] to require replacement
of each affected hydraulic pressure tube assembly with a tube
assembly having the double-welded ripple damper installed. That
[EASA] AD also required implementation of a life limit of the
improved part.
Since issuance of EASA AD 2017-0041, a new design hydraulic
pressure tube assembly has been developed, defined as serviceable
part in this [EASA] AD, which has no life limitation. Consequently,
Airbus published the AOT to provide modification instructions for
installation of the serviceable part.
For the reasons described above, this [EASA] AD requires the
replacement of all affected parts with serviceable parts [or
modification of both engines].
Relationship Between This Proposed AD and AD 2017-07-03
This NPRM would not supersede AD 2017-07-03. Rather, the FAA has
determined that a stand-alone AD would be more appropriate to address
the changes in the MCAI. This NPRM would require replacement of the
affected hydraulic pressure tube assembly or modification of both
engines. Accomplishment of the proposed actions would then terminate
all of the requirements of AD 2017-07-03 for that airplane only.
Related IBR Material Under 1 CFR Part 51
EASA AD 2019-0031 describes procedures for replacement of the
affected hydraulic pressure tube assembly with a serviceable hydraulic
pressure tube assembly or modification of both engines. 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 and Requirements of This Proposed AD
This product has been approved by the aviation authority of another
country, and is approved for operation in the United States. Pursuant
to 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 proposing this AD because the agency
evaluated all the relevant information and determined the unsafe
condition described previously is likely to exist or develop in other
products of the same type design.
Proposed AD Requirements
This proposed AD would require accomplishing the actions specified
in EASA AD 2019-0031 described previously, as incorporated by
reference, except for any differences identified as exceptions in the
regulatory text of this AD.
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 2019-0031 will be incorporated by reference in the FAA final
rule. This proposed AD would, therefore, require compliance with the
provisions specified in EASA AD 2019-0031, 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 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 2019-0031 that is required for
compliance with EASA AD 2019-0031 will be available on the internet at
http://www.regulations.gov by searching for and locating Docket No.
FAA-2019-0580 after the FAA final rule is published.
Costs of Compliance
The FAA estimates that this proposed AD affects 53 airplanes of
U.S. registry. The FAA estimates the following costs to comply with
this proposed AD:
[[Page 37164]]
Estimated Costs for Required Actions
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Cost per Cost on U.S.
Labor cost Parts cost product operators
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4 work-hours x $85 per hour = $340........................... $20,000 $20,340 $1,078,020
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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.
This proposed 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 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. 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 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 (AD):
Airbus SAS: Docket No. FAA-2019-0580; Product Identifier 2019-NM-
019-AD.
(a) Comments Due Date
The FAA must receive comments by September 16, 2019.
(b) Affected ADs
This AD affects AD 2017-07-03, Amendment 39-18841 (82 FR 15985,
March 31, 2017); corrected April 13, 2017 (82 FR 17749) (``AD 2017-
07-03'').
(c) Applicability
This AD applies to all Airbus SAS Model A330-243, -243F, -341, -
342, and -343 airplanes, certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 71, Powerplant.
(e) Reason
This AD was prompted by a determination that cracks can develop
on the ripple damper weld of the hydraulic pressure tube assembly
and reports of failure of the ripple damper of the hydraulic
pressure tube assembly. The FAA is issuing this AD to address
cracking of the ripple damper weld of the hydraulic pressure tube
assembly, which could lead to hydraulic fluid leakage and consequent
loss of the green hydraulic system. This condition, if combined with
other system failures, could result in 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, European Aviation Safety Agency (EASA) AD 2019-
0031, dated February 13, 2019 (``EASA AD 2019-0031'').
(h) Exceptions to EASA AD 2019-0031
(1) For purposes of determining compliance with the requirements
of this AD: Where EASA AD 2019-0031 refers to its effective date,
this AD requires using the effective date of this AD.
(2) The ``Remarks'' section of EASA AD 2019-0031 does not apply
to this AD.
(i) Terminating Action for AD 2017-07-03
Accomplishing the actions required by this AD terminates all
requirements of AD 2017-07-03 for that airplane only.
(j) No Reporting Requirement
Although the service information referenced in EASA AD 2019-0031
specifies to submit certain information to the manufacturer, this AD
does not include that requirement.
(k) 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 (l)(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 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 2019-0031 that contains RC procedures and
tests: Except as required by paragraph (k)(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
[[Page 37165]]
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.
(l) Related Information
(1) For information about EASA AD 2019-0031, contact the EASA,
Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221
89990 6017; email [email protected]; Internet www.easa.europa.eu.
You may find this EASA AD on the EASA website at https://ad.easa.europa.eu. 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 2019-0031 may be found in the AD docket on the
internet at http://www.regulations.gov by searching for and locating
Docket No. FAA-2019-0580.
(2) For more information about this AD, contact Vladimir
Ulyanov, Aerospace Engineer, International Section, Transport
Standards Branch, FAA, 2200 South 216th St., Des Moines, WA 98198;
telephone and fax 206-231-3229.
Issued in Des Moines, Washington, on July 23, 2019.
Dionne Palermo,
Acting Director, System Oversight Division, Aircraft Certification
Service.
[FR Doc. 2019-16132 Filed 7-30-19; 8:45 am]
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