Airworthiness Directives; Airbus Airplanes, 5726-5728 [2012-2622]
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5726
Federal Register / Vol. 77, No. 24 / Monday, February 6, 2012 / Proposed Rules
(d) Subject
(k) Other FAA AD Provisions
Air Transport Association (ATA) of
America Code 53: Fuselage.
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, International
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 Branch, send it to ATTN:
Tom Rodriguez, Aerospace Engineer,
International Branch, ANM–116, Transport
Airplane Directorate, FAA 1601 Lind Avenue
SW., Renton, Washington 98057–3356;
telephone (425) 227–1137; fax (425) 227–
1149. Information may be emailed to:
9-ANM-116-AMOC-REQUESTS@faa.gov.
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. The AMOC
approval letter must specifically reference
this AD.
(2) Airworthy Product: For any requirement
in this AD to obtain corrective actions from
a manufacturer or other source, use these
actions if they are FAA-approved. Corrective
actions are considered FAA-approved if they
are approved by the State of Design Authority
(or their delegated agent). You are required
to assure the product is airworthy before it
is returned to service.
(3) Reporting Requirements: 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 5 minutes 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.
(e) Reason
This AD was prompted by reports of cracks
underneath the passenger door in a butt-joint
on the forward fuselage of an F.28 Mark 0100
airplane. We are issuing this AD to detect
and correct cracks on the butt-joint on the
forward fuselage, which could result in
explosive decompression and consequent
loss of control of the airplane.
(f) Compliance
You are responsible for having the actions
required by this AD performed within the
compliance times specified, unless the
actions have already been done.
(g) Inspection
Before the accumulation of 20,000 total
flight cycles, or within 180 flight cycles after
the effective date of this AD, whichever
occurs later, do a low frequency eddy current
inspection of the forward fuselage butt-joints
for cracks, in accordance with the
Accomplishment Instructions of Fokker
Service Bulletin SBF100–53–115, dated June
16, 2011. Repeat the inspection thereafter at
intervals not to exceed 1,000 flight cycles.
Doing the temporary repair in paragraph (h)
of this AD is terminating action for the
repetitive inspections required by this
paragraph. The temporary repair can also be
accomplished if no cracking is found.
(h) Temporary Repair
If any cracking is found during any
inspection required by paragraph (g) of this
AD, before further flight, do a temporary
repair, in accordance with the
Accomplishment Instructions of Fokker
Service Bulletin SBF100–53–115, dated June
16, 2011. Doing the temporary repair is
terminating action for the repetitive
inspections required by paragraph (g) of this
AD.
(i) Permanent Repair
Within 10,000 flight cycles after installing
the temporary repair as required by
paragraph (h) of this AD, install a permanent
repair using a method approved by the
Manager, International Branch, ANM 116,
Transport Airplane Directorate, FAA.
tkelley on DSK3SPTVN1PROD with PROPOSALS
(j) Reporting
Submit a report of the findings (both
positive and negative), to Fokker Services
B.V., Technical Services Dept., P.O. Box 231,
2150 AE Nieuw-Vennep, the Netherlands,
using the reports form of Fokker Service
Bulletin SBF100–53–115, dated June 16,
2011, of the inspection required by paragraph
(g) of this AD, at the applicable time
specified in paragraph (j)(1) or (j)(2) of this
AD.
(1) If the inspection was done on or after
the effective date of this AD: Submit the
report within 30 days after the inspection.
(2) If the inspection was done before the
effective date of this AD: Submit the report
within 30 days after the effective date of this
AD.
VerDate Mar<15>2010
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Jkt 226001
DEPARTMENT OF TRANSPORTATION
(l) Related Information
Refer to MCAI European Aviation Safety
Agency Airworthiness Directive 2011–0115,
dated June 17, 2011; and Fokker Service
Bulletin SBF100–53–115, dated June 16,
2011; for related information.
Issued in Renton, Washington, on January
12, 2012.
Michael J. Kaszycki,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2012–2618 Filed 2–3–12; 8:45 am]
BILLING CODE 4910–13–P
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Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2012–0041; Directorate
Identifier 2011–NM–167–AD]
RIN 2120–AA64
Airworthiness Directives; Airbus
Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to adopt a new
airworthiness directive (AD) for all
Airbus Model A300 B2–1C, B2K–3C,
B2–203, B4–2C, B4–103, and B4–203
airplanes. This proposed AD was
prompted by analysis that in a specific
failure case of the upper primary
attachment of the trimmable horizontal
stabilizer actuator (THSA); the THSA
upper secondary attachment would
engage because it could only withstand
the loads for a limited period of time.
This proposed AD would require
installation of three secondary retention
plates for the gimbal bearings on the
THSA upper primary attachment. We
are proposing this AD to prevent failure
of the secondary load path, which could
result in loss of control of the airplane.
DATES: We must receive comments on
this proposed AD by March 22, 2012.
ADDRESSES: You may send comments by
any of the following methods:
• Federal eRulemaking Portal: Go to
https://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: U.S. Department of
Transportation, Docket Operations,
M–30, West Building Ground Floor,
Room W12–140, 1200 New Jersey
Avenue SE., Washington, DC, between 9
a.m. and 5 p.m., Monday through
Friday, except Federal holidays.
For service information identified in
this proposed AD, contact Airbus SAS—
EAW (Airworthiness Office), 1 Rond
Point Maurice Bellonte, 31707 Blagnac
Cedex, France; telephone +33 5 61 93 36
96; fax +33 5 61 93 44 51; e-mail
account.airworth-eas@airbus.com;
Internet https://www.airbus.com. You
may review copies of the referenced
service information at the FAA,
Transport Airplane Directorate, 1601
Lind Avenue SW., Renton, Washington.
SUMMARY:
E:\FR\FM\06FEP1.SGM
06FEP1
Federal Register / Vol. 77, No. 24 / Monday, February 6, 2012 / Proposed Rules
For information on the availability of
this material at the FAA, call (425) 227–
1221.
Examining the AD Docket
You may examine the AD docket on
the Internet at https://
www.regulations.gov; or in person at the
Docket Operations office between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket
contains this proposed AD, the
regulatory evaluation, any comments
received, and other information. The
street address for the Docket Operations
office (telephone (800) 647–5527) is in
the ADDRESSES section. Comments will
be available in the AD docket shortly
after receipt.
FOR FURTHER INFORMATION CONTACT: Dan
Rodina, Aerospace Engineer,
International Branch, ANM–116,
Transport Airplane Directorate, FAA,
1601 Lind Avenue SW., Renton,
Washington 98057–3356; telephone
(425) 227–2125; fax (425) 227–1149.
SUPPLEMENTARY INFORMATION:
tkelley on DSK3SPTVN1PROD with PROPOSALS
Comments Invited
We invite you to send any written
relevant data, views, or arguments about
this proposed AD. Send your comments
to an address listed under the
ADDRESSES section. Include ‘‘Docket No.
FAA–2012–0041; Directorate Identifier
2011–NM–167–AD’’ at the beginning of
your comments. We specifically invite
comments on the overall regulatory,
economic, environmental, and energy
aspects of this proposed AD. We will
consider all comments received by the
closing date and may amend this
proposed AD based on those comments.
We will post all comments we
receive, without change, to https://
www.regulations.gov, including any
personal information you provide. We
will also post a report summarizing each
substantive verbal contact we receive
about this proposed AD.
Discussion
The European Aviation Safety Agency
(EASA), which is the Technical Agent
for the Member States of the European
Community, has issued EASA
Airworthiness Directive 2011–0112,
dated June 15, 2011 (referred to after
this as ‘‘the MCAI’’), to correct an unsafe
condition for the specified products.
The MCAI states:
A specific failure case of the THSA
[trimmable horizontal stabilizer actuator]
upper primary attachment, which may result
in a loading of the upper secondary
attachment, has been identified by analysis.
Primary load path failure can be caused by
bearing migration from the upper attachment
gimbal by failure or loss of a retention bolt.
VerDate Mar<15>2010
15:45 Feb 03, 2012
Jkt 226001
In case of failure of the THSA upper
primary attachment, the THSA upper
secondary attachment would engage. Because
the upper attachment secondary load path
can only withstand the loads for a limited
period of time, the condition where it would
be engaged could lead, if not detected and
corrected, to the failure of the secondary load
path, which would likely result in loss of
control of the aeroplane.
For the reasons explained above, this
[EASA] AD requires installation of three
secondary retention plates for the gimbal
bearings on the THSA upper primary
attachment.
You may obtain further information by
examining the MCAI in the AD docket.
Relevant Service Information
Airbus has issued Mandatory Service
Bulletin A300–27–0204, dated March
11, 2011. The actions described in this
service information are intended to
correct the unsafe condition identified
in the MCAI.
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 our
bilateral agreement with the State of
Design Authority, we have been notified
of the unsafe condition described in the
MCAI and service information
referenced above. We are proposing this
AD because we evaluated all pertinent
information and determined an unsafe
condition exists and is likely to exist or
develop on other products of the same
type design.
Costs of Compliance
Based on the service information, we
estimate that this proposed AD would
affect about 15 products of U.S. registry.
We also estimate that it would take
about 2 work-hours per product to
comply with the basic requirements of
this proposed AD. The average labor
rate is $85 per work-hour. Required
parts would cost about $6,541 per
product. Where the service information
lists required parts costs that are
covered under warranty, we have
assumed that there will be no charge for
these parts. As we do not control
warranty coverage for affected parties,
some parties may incur costs higher
than estimated here. Based on these
figures, we estimate the cost of the
proposed AD on U.S. operators to be
$100,665, or $6,711 per product.
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
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5727
the FAA Administrator. ‘‘Subtitle VII:
Aviation Programs,’’ describes in more
detail the scope of the Agency’s
authority.
We are 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
We 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. Is not a ‘‘significant rule’’ under the
DOT Regulatory Policies and Procedures
(44 FR 11034, February 26, 1979); and
3. Will not affect intrastate aviation in
Alaska; and
4. 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.
We prepared a regulatory evaluation
of the estimated costs to comply with
this proposed AD and placed it in the
AD docket.
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
1. The authority citation for part 39
continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
E:\FR\FM\06FEP1.SGM
06FEP1
5728
§ 39.13
Federal Register / Vol. 77, No. 24 / Monday, February 6, 2012 / Proposed Rules
[Amended]
2. The FAA amends § 39.13 by adding
the following new AD:
Airbus: Docket No. FAA–2012–0041;
Directorate Identifier 2011–NM–167–AD.
(a) Comments Due Date
We must receive comments by March 22,
2012.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Airbus Model A300
B2–1C, B2K–3C, B2–203, B4–2C, B4–103,
and B4–203 airplanes, certificated in any
category.
(d) Subject
Air Transport Association (ATA) of
America Code 27: Flight controls.
(e) Reason
This AD was prompted by analysis that in
a specific failure case of the upper primary
attachment of the trimmable horizontal
stabilizer actuator (THSA); the THSA upper
secondary attachment would engage because
it could only withstand the loads for a
limited period of time. We are issuing this
AD to prevent failure of the secondary load
path, which could result in loss of control of
the airplane.
(f) Compliance
You are responsible for having the actions
required by this AD performed within the
compliance times specified, unless the
actions have already been done.
tkelley on DSK3SPTVN1PROD with PROPOSALS
(g) Actions
Within 30 months after the effective date
of this AD, install 3 retention plates for the
gimbal bearings on the THSA upper primary
attachment, in accordance with the
Accomplishment Instructions of Airbus
Mandatory Service Bulletin A300–27–0204,
dated March 11, 2011.
(h) Other FAA AD Provisions
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, International
Branch, ANM–116, Transport Airplane
Directorate, 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 Branch, send it to ATTN:
Dan Rodina, Aerospace Engineer,
International Branch, ANM–116, Transport
Airplane Directorate, FAA, 1601 Lind
Avenue SW., Renton, Washington 98057–
3356; telephone (425) 227–2125; fax (425)
227–1149. Information may be emailed to:
9-ANM-116-AMOC-REQUESTS@faa.gov.
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. The AMOC
VerDate Mar<15>2010
15:45 Feb 03, 2012
Jkt 226001
approval letter must specifically reference
this AD.
(2) Airworthy Product: For any requirement
in this AD to obtain corrective actions from
a manufacturer or other source, use these
actions if they are FAA-approved. Corrective
actions are considered FAA-approved if they
are approved by the State of Design Authority
(or their delegated agent). You are required
to assure the product is airworthy before it
is returned to service.
(i) Related Information
Refer to MCAI European Aviation Safety
Agency (EASA) Airworthiness Directive
2011–0112, dated June 15, 2011; and Airbus
Mandatory Service Bulletin A300–27–0204,
dated March 11, 2011; for related
information.
Issued in Renton, Washington, on January
23, 2012.
Kalene C. Yanamura,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2012–2622 Filed 2–3–12; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2012 0040; Directorate
Identifier 2011–NM–121–AD]
RIN 2120–AA64
Airworthiness Directives; Airbus
Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to adopt a new
airworthiness directive (AD) for all
Airbus Model A300 series airplanes; all
Model A300 B4–600, B4–600R, and F4–
600R series airplanes, and Model C4–
605R Variant F airplanes (collectively
called A300–600 series airplanes). This
proposed AD was prompted by reports
of an inoperative fire shut-off valve
(FSOV) as a result of damage due to
over-length of the bonding lead. This
proposed AD would require a one-time
detailed inspection for length of the
FSOV bonding leads and for contact or
chafing of the wires, and corrective
actions, if necessary. We are proposing
this AD to detect and correct contact or
chafing of wires and bonding leads
which, if not detected could be a source
of sparks in the wing trailing edge, and
could lead to an uncontrolled engine
fire.
SUMMARY:
We must receive comments on
this proposed AD by March 22, 2012.
DATES:
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Fmt 4702
Sfmt 4702
You may send comments by
any of the following methods:
• Federal eRulemaking Portal: Go to
https://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: U.S. Department of
Transportation, Docket Operations,
M–30, West Building Ground Floor,
Room W12–140, 1200 New Jersey
Avenue SE., Washington, DC, between 9
a.m. and 5 p.m., Monday through
Friday, except Federal holidays.
For service information identified in
this proposed AD, contact Airbus SAS–
EAW (Airworthiness Office), 1 Rond
Point Maurice Bellonte, 31707 Blagnac
Cedex, France; telephone +33 5 61 93 36
96; fax +33 5 61 93 44 51; email:
account.airworth-eas@airbus.com;
Internet https://www.airbus.com. You
may review copies of the referenced
service information at the FAA,
Transport Airplane Directorate, 1601
Lind Avenue SW., Renton, Washington.
For information on the availability of
this material at the FAA, call (425) 227–
1221.
ADDRESSES:
Examining the AD Docket
You may examine the AD docket on
the Internet at https://
www.regulations.gov; or in person at the
Docket Operations office between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket
contains this proposed AD, the
regulatory evaluation, any comments
received, and other information. The
street address for the Docket Operations
office (telephone (800) 647–5527) is in
the ADDRESSES section. Comments will
be available in the AD docket shortly
after receipt.
FOR FURTHER INFORMATION CONTACT: Dan
Rodina, Aerospace Engineer,
International Branch, ANM–116,
Transport Airplane Directorate, FAA,
1601 Lind Avenue SW., Renton,
Washington 98057–3356; telephone
(425) 227–2125; fax (425) 227–1149.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written
relevant data, views, or arguments about
this proposed AD. Send your comments
to an address listed under the
ADDRESSES section. Include ‘‘Docket No.
FAA–2012–0040; Directorate Identifier
2011–NM–121–AD’’ at the beginning of
your comments. We specifically invite
comments on the overall regulatory,
E:\FR\FM\06FEP1.SGM
06FEP1
Agencies
[Federal Register Volume 77, Number 24 (Monday, February 6, 2012)]
[Proposed Rules]
[Pages 5726-5728]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-2622]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2012-0041; Directorate Identifier 2011-NM-167-AD]
RIN 2120-AA64
Airworthiness Directives; Airbus Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: We propose to adopt a new airworthiness directive (AD) for all
Airbus Model A300 B2-1C, B2K-3C, B2-203, B4-2C, B4-103, and B4-203
airplanes. This proposed AD was prompted by analysis that in a specific
failure case of the upper primary attachment of the trimmable
horizontal stabilizer actuator (THSA); the THSA upper secondary
attachment would engage because it could only withstand the loads for a
limited period of time. This proposed AD would require installation of
three secondary retention plates for the gimbal bearings on the THSA
upper primary attachment. We are proposing this AD to prevent failure
of the secondary load path, which could result in loss of control of
the airplane.
DATES: We must receive comments on this proposed AD by March 22, 2012.
ADDRESSES: You may send comments by any of the following methods:
Federal eRulemaking Portal: Go to https://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: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
For service information identified in this proposed AD, contact
Airbus SAS--EAW (Airworthiness Office), 1 Rond Point Maurice Bellonte,
31707 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61
93 44 51; e-mail account.airworth-eas@airbus.com; Internet https://www.airbus.com. You may review copies of the referenced service
information at the FAA, Transport Airplane Directorate, 1601 Lind
Avenue SW., Renton, Washington.
[[Page 5727]]
For information on the availability of this material at the FAA, call
(425) 227-1221.
Examining the AD Docket
You may examine the AD docket on the Internet at https://www.regulations.gov; or in person at the Docket Operations office
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains this proposed AD, the regulatory
evaluation, any comments received, and other information. The street
address for the Docket Operations office (telephone (800) 647-5527) is
in the ADDRESSES section. Comments will be available in the AD docket
shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Dan Rodina, Aerospace Engineer,
International Branch, ANM-116, Transport Airplane Directorate, FAA,
1601 Lind Avenue SW., Renton, Washington 98057-3356; telephone (425)
227-2125; fax (425) 227-1149.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written relevant data, views, or
arguments about this proposed AD. Send your comments to an address
listed under the ADDRESSES section. Include ``Docket No. FAA-2012-0041;
Directorate Identifier 2011-NM-167-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this proposed AD. We
will consider all comments received by the closing date and may amend
this proposed AD based on those comments.
We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this proposed AD.
Discussion
The European Aviation Safety Agency (EASA), which is the Technical
Agent for the Member States of the European Community, has issued EASA
Airworthiness Directive 2011-0112, dated June 15, 2011 (referred to
after this as ``the MCAI''), to correct an unsafe condition for the
specified products. The MCAI states:
A specific failure case of the THSA [trimmable horizontal
stabilizer actuator] upper primary attachment, which may result in a
loading of the upper secondary attachment, has been identified by
analysis.
Primary load path failure can be caused by bearing migration
from the upper attachment gimbal by failure or loss of a retention
bolt.
In case of failure of the THSA upper primary attachment, the
THSA upper secondary attachment would engage. Because the upper
attachment secondary load path can only withstand the loads for a
limited period of time, the condition where it would be engaged
could lead, if not detected and corrected, to the failure of the
secondary load path, which would likely result in loss of control of
the aeroplane.
For the reasons explained above, this [EASA] AD requires
installation of three secondary retention plates for the gimbal
bearings on the THSA upper primary attachment.
You may obtain further information by examining the MCAI in the AD
docket.
Relevant Service Information
Airbus has issued Mandatory Service Bulletin A300-27-0204, dated
March 11, 2011. The actions described in this service information are
intended to correct the unsafe condition identified in the MCAI.
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 our bilateral agreement with the State of Design Authority, we have
been notified of the unsafe condition described in the MCAI and service
information referenced above. We are proposing this AD because we
evaluated all pertinent information and determined an unsafe condition
exists and is likely to exist or develop on other products of the same
type design.
Costs of Compliance
Based on the service information, we estimate that this proposed AD
would affect about 15 products of U.S. registry. We also estimate that
it would take about 2 work-hours per product to comply with the basic
requirements of this proposed AD. The average labor rate is $85 per
work-hour. Required parts would cost about $6,541 per product. Where
the service information lists required parts costs that are covered
under warranty, we have assumed that there will be no charge for these
parts. As we do not control warranty coverage for affected parties,
some parties may incur costs higher than estimated here. Based on these
figures, we estimate the cost of the proposed AD on U.S. operators to
be $100,665, or $6,711 per product.
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.
We are 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
We 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. Is not a ``significant rule'' under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979); and
3. Will not affect intrastate aviation in Alaska; and
4. 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.
We prepared a regulatory evaluation of the estimated costs to
comply with this proposed AD and placed it in the AD docket.
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
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
[[Page 5728]]
Sec. 39.13 [Amended]
2. The FAA amends Sec. 39.13 by adding the following new AD:
Airbus: Docket No. FAA-2012-0041; Directorate Identifier 2011-NM-
167-AD.
(a) Comments Due Date
We must receive comments by March 22, 2012.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Airbus Model A300 B2-1C, B2K-3C, B2-203,
B4-2C, B4-103, and B4-203 airplanes, certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 27: Flight
controls.
(e) Reason
This AD was prompted by analysis that in a specific failure case
of the upper primary attachment of the trimmable horizontal
stabilizer actuator (THSA); the THSA upper secondary attachment
would engage because it could only withstand the loads for a limited
period of time. We are issuing this AD to prevent failure of the
secondary load path, which could result in loss of control of the
airplane.
(f) Compliance
You are responsible for having the actions required by this AD
performed within the compliance times specified, unless the actions
have already been done.
(g) Actions
Within 30 months after the effective date of this AD, install 3
retention plates for the gimbal bearings on the THSA upper primary
attachment, in accordance with the Accomplishment Instructions of
Airbus Mandatory Service Bulletin A300-27-0204, dated March 11,
2011.
(h) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
International Branch, ANM-116, Transport Airplane Directorate, 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 Branch, send it to ATTN: Dan Rodina,
Aerospace Engineer, International Branch, ANM-116, Transport
Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, Washington
98057-3356; telephone (425) 227-2125; fax (425) 227-1149.
Information may be emailed to: 9-ANM-116-AMOC-REQUESTS@faa.gov.
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. The AMOC approval letter must specifically reference this
AD.
(2) Airworthy Product: For any requirement in this AD to obtain
corrective actions from a manufacturer or other source, use these
actions if they are FAA-approved. Corrective actions are considered
FAA-approved if they are approved by the State of Design Authority
(or their delegated agent). You are required to assure the product
is airworthy before it is returned to service.
(i) Related Information
Refer to MCAI European Aviation Safety Agency (EASA)
Airworthiness Directive 2011-0112, dated June 15, 2011; and Airbus
Mandatory Service Bulletin A300-27-0204, dated March 11, 2011; for
related information.
Issued in Renton, Washington, on January 23, 2012.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2012-2622 Filed 2-3-12; 8:45 am]
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