Airworthiness Directives; Turbomeca S.A. Turboshaft Engines, 24585-24587 [2012-9789]
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24585
Rules and Regulations
Federal Register
Vol. 77, No. 80
Wednesday, April 25, 2012
This section of the FEDERAL REGISTER
contains regulatory documents having general
applicability and legal effect, most of which
are keyed to and codified in the Code of
Federal Regulations, which is published under
50 titles pursuant to 44 U.S.C. 1510.
The Code of Federal Regulations is sold by
the Superintendent of Documents. Prices of
new books are listed in the first FEDERAL
REGISTER issue of each week.
NUCLEAR REGULATORY
COMMISSION
10 CFR Part 72
FOR FURTHER INFORMATION CONTACT:
[NRC–2011–0221]
RIN 3150–AJ05
List of Approved Spent Fuel Storage
Casks: HI-STORM 100, Revision 8
Nuclear Regulatory
Commission.
ACTION: Direct final rule; confirmation of
effective date.
AGENCY:
The U.S. Nuclear Regulatory
Commission (NRC or the Commission)
is confirming the effective date of May
2, 2012, for the direct final rule that was
published in the Federal Register on
February 17, 2012. This direct final rule
amends the NRC’s spent fuel storage
regulations by revising the Holtec
International HI-STORM 100 System
listing within the ‘‘List of Approved
Spent Fuel Storage Casks’’ to include
Amendment No. 8 to Certificate of
Compliance (CoC) Number 1014.
DATES: The effective date for the direct
final rule published February 17, 2012,
at 77 FR 9515, is confirmed as May 2,
2012.
ADDRESSES: Please refer to Docket ID
NRC–2011–0221 when contacting the
NRC about the availability of
information regarding this document.
You may access information related to
this document, which the NRC
possesses and is publicly-available,
using the following methods:
• Federal Rulemaking Web site: Go to
https://www.regulations.gov and search
for Docket ID NRC–2011–0221. Address
questions about NRC dockets to Carol
Gallagher; telephone: 301–492–3668;
email: Carol.Gallagher@nrc.gov.
• NRC’s Agencywide Documents
Access and Management System
(ADAMS): You may access publiclyavailable documents online in the NRC
srobinson on DSK4SPTVN1PROD with RULES
SUMMARY:
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16:02 Apr 24, 2012
Library at https://www.nrc.gov/readingrm/adams.html. To begin the search,
select ‘‘ADAMS Public Documents’’ and
then select ‘‘Begin Web-based ADAMS
Search.’’ For problems with ADAMS,
please contact the NRC’s Public
Document Room (PDR) reference staff at
1–800–397–4209, 301–415–4737, or by
email to pdr.resource@nrc.gov.
• NRC’s PDR: You may examine and
purchase copies of public documents at
the NRC’s PDR, Room O1–F21, One
White Flint North, 11555 Rockville
Pike, Rockville, Maryland 20852.
Jkt 226001
Gregory Trussell, Office of Federal and
State Materials and Environmental
Management Programs, U.S. Nuclear
Regulatory Commission, Washington,
DC 20555–0001, telephone: 301–415–
6445, email: Gregory.Trussell@nrc.gov.
On
February 17, 2012 (77 FR 9515), the
NRC published a direct final rule
amending its regulations at Title 10 of
the Code of Federal Regulations
(10 CFR) 72.214, by revising the Holtec
International HI-STORM 100 System
listing within the ‘‘List of Approved
Spent Fuel Storage Casks’’ to include
Amendment No. 8 to CoC Number 1014.
In the direct final rule, the NRC stated
that if no significant adverse comments
were received, the direct final rule
would become effective on May 2, 2012.
The NRC did not receive any comments
on the direct final rule. Therefore, this
rule will become effective as scheduled.
SUPPLEMENTARY INFORMATION:
Dated at Rockville, Maryland, this 19th day
of April 2012.
For the Nuclear Regulatory Commission.
Cindy Bladey,
Chief, Rules, Announcements, and Directives
Branch, Division of Administrative Services,
Office of Administration.
[FR Doc. 2012–9834 Filed 4–24–12; 8:45 am]
BILLING CODE 7590–01–P
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2012–0010; Directorate
Identifier 2012–NE–03–AD; Amendment 39–
17035; AD 2012–08–18]
RIN 2120–AA64
Airworthiness Directives; Turbomeca
S.A. Turboshaft Engines
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
We are adopting a new
airworthiness directive (AD) for all
Turbomeca S.A. Arriel 2B and 2B1
turboshaft engines. This AD was
prompted by the discovery of nonconformities of certain power turbine
(PT) blade fir-tree roots. This AD
requires removing the affected PT
blades from service on or before
reaching a new reduced life limit for
those certain PT blades. We are issuing
this AD to prevent PT blade rupture,
which could result in an uncommanded
in-flight engine shutdown, forced
autorotation landing, or accident.
DATES: This AD is effective May 30,
2012.
SUMMARY:
For service information
identified in this AD, contact
Turbomeca, 40220 Tarnos, France;
phone: 33 05 59 74 40 00; fax: 33 05 59
74 45 15. You may review copies of the
referenced service information at the
FAA, Engine & Propeller Directorate,
12 New England Executive Park,
Burlington, MA. For information on the
availability of this material at the FAA,
call 781–238–7125.
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 Management Facility 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 address for the
Docket Office (phone: 800–647–5527) is
Document Management Facility, U.S.
Department of Transportation, Docket
Operations, M–30, West Building
Ground Floor, Room W12–140, 1200
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25APR1
24586
Federal Register / Vol. 77, No. 80 / Wednesday, April 25, 2012 / Rules and Regulations
New Jersey Avenue SE., Washington,
DC 20590.
FOR FURTHER INFORMATION CONTACT: Rose
Len, Aerospace Engineer, Engine
Certification Office, FAA, Engine &
Propeller Directorate, 12 New England
Executive Park, Burlington, MA 01803;
phone: 781–238–7772; fax: 781–238–
7199; email: rose.len@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would
apply to the specified products. That
NPRM published in the Federal
Register on January 20, 2012 (77 FR
2930). That NPRM proposed to require
removing the affected PT blades from
service on or before reaching a new
reduced life limit for those certain PT
blades.
Comments
We gave the public the opportunity to
participate in developing this AD. We
received no comments on the NPRM
(77 FR 2930, January 20, 2012).
Clarification of Compliance Time
Since we issued the proposed AD, we
determined that we need to clarify the
compliance time. The proposed AD
stated 5,000 flight cycles. We changed
the AD to state 5,000 flight cycles-sincenew.
Conclusion
We reviewed the relevant data and
determined that air safety and the
public interest require adopting the AD
with the change described previously.
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.
(c) Applicability
This AD applies to Turbomeca S.A. Arriel
2B and 2B1 turboshaft engines with at least
one installed power turbine (PT) blade part
number (P/N) 2 292 81 A01 0, serial numbers
(S/Ns) 102782 through 120230 inclusive, or,
S/Ns 120293 through 120390 inclusive.
Regulatory Findings
This AD will not have federalism
implications under Executive Order
13132. This AD will not have a
substantial direct effect on the States, on
the relationship between the national
government and the States, or on the
distribution of power and
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify that this AD:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
(2) Is not a ‘‘significant rule’’ under
DOT Regulatory Policies and Procedures
(44 FR 11034, February 26, 1979),
(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.
(e) Actions and Compliance
Unless already done, do the following
actions within 5,000 flight cycles-since-new
(CSN) on the PT blades, or within one month
after the effective date of this AD, whichever
occurs later.
(1) Replace the PT blades with PT blades
eligible for installation; or
(2) Replace the M04 module with an M04
module having PT blades eligible for
installation; or
(3) Replace the PT wheel assembly with a
PT wheel assembly having PT blades eligible
for installation.
(4) Guidance on the replacements specified
in paragraphs (e)(1) through (e)(3) can be
found in Turbomeca S.A. Alert Mandatory
Service Bulletin No. A292 72 2842, Version
A, dated September 23, 2011.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
(g) Installation Prohibition
From the effective date of this AD:
(1) Do not install a PT blade as listed in
paragraph (c) of this AD, that has 5,000 or
more flight CSN, into any engine.
(2) Do not install any engine with a PT
blade as listed in paragraph (c) of this AD,
that has 5,000 or more flight CSN, onto a
helicopter.
srobinson on DSK4SPTVN1PROD with RULES
Costs of Compliance
Based on the service information, we
estimate that this AD will affect about
150 engines installed on helicopters of
U.S. registry. We also estimate that it
will take about 4 work-hours per
product to comply with this AD. The
average labor rate is $85 per work-hour.
A prorated replacement M04 module
will cost about $20,000 per engine.
Based on these figures, we estimate the
cost of the AD on U.S. operators to be
$3,051,000.
Adoption of the Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as
follows:
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,
■
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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 (AD):
2012–08–18 Turbomeca S.A: Amendment
39–17035; Docket No. FAA–2012–0010;
Directorate Identifier 2012–NE–03–AD.
(a) Effective Date
This AD is effective May 30, 2012.
(b) Affected ADs
None.
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(d) Reason
This AD was prompted by the detection of
geometric non-conformities on PT blade firtree roots. We are issuing this AD to prevent
PT blade rupture, which could result in an
uncommanded in-flight engine shutdown,
forced autorotation landing, or accident.
(f) Definition
For the purposes of this AD, a PT blade
eligible for installation is one not listed in
paragraph (c) of this AD or, one listed in
paragraph (c) of this AD with fewer than
5,000 flight CSN.
(h) Alternative Methods of Compliance
(AMOCs)
The Manager, Engine Certification Office,
may approve AMOCs for this AD. Use the
procedures found in 14 CFR 39.19 to make
your request.
(i) Related Information
(1) For more information about this AD,
contact Rose Len, Aerospace Engineer,
Engine Certification Office, FAA, Engine &
Propeller Directorate, 12 New England
Executive Park, Burlington, MA 01803;
phone: 781–238–7772; fax: 781–238–7199;
email: rose.len@faa.gov.
(2) Refer to MCAI EASA Airworthiness
Directive 2011–0218, dated November 10,
2011, and Turbomeca S.A. Alert Mandatory
Service Bulletin No. A292 72 2842, Version
A, dated September 23, 2011, for related
information.
(3) For service information identified in
this AD, contact Turbomeca, 40220 Tarnos,
France; phone: 33 05 59 74 40 00; fax: 33 05
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Federal Register / Vol. 77, No. 80 / Wednesday, April 25, 2012 / Rules and Regulations
59 74 45 15. You may review copies of the
referenced service information at the FAA,
Engine & Propeller Directorate, 12 New
England Executive Park, Burlington, MA. For
information on the availability of this
material at the FAA, call 781–238–7125.
(j) Material Incorporated by Reference
None.
Issued in Burlington, Massachusetts, on
April 17, 2012.
Peter A. White,
Manager, Engine & Propeller Directorate,
Aircraft Certification Service.
[FR Doc. 2012–9789 Filed 4–24–12; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF COMMERCE
Bureau of Industry and Security
15 CFR Part 744
[Docket No. 120416415–2415–01]
RIN 0694–AF57
Addition of Certain Persons to the
Entity List; and Implementation of
Entity List Annual Review Changes
Bureau of Industry and
Security, Commerce.
ACTION: Final rule.
AGENCY:
This rule amends the Export
Administration Regulations (EAR) by
adding to the Entity List two persons
who have been determined by the U.S.
Government to be acting contrary to the
national security or foreign policy
interests of the United States. These
persons will be listed on the Entity List
under the country of France.
This rule also amends the Entity List
on the basis of the annual review of the
Entity List conducted by the End-User
Review Committee (ERC). The ERC
conducts the annual review to
determine if any entries on the Entity
List should be removed or modified.
This rule reflects the results of the ERC’s
annual review of fifteen countries, i.e.
Armenia, Belarus, Egypt, Germany, Iran,
Ireland, Israel, Kuwait, Lebanon,
Norway, Russia, South Korea, Syria, the
United Arab Emirates (U.A.E.), and the
United Kingdom (U.K.). As a result of
these reviews, this rule makes
amendments to the Entity List
including: The removal of three entries
(one each in Germany, South Korea, and
the United Arab Emirates (U.A.E.)); the
addition of four entities (one each in
Canada, Egypt, France and the United
Kingdom); and the amendments of
seventeen entries to provide alternate
addresses, alternate spellings of names,
and/or aliases for listed persons. The
amended entries are in Armenia,
srobinson on DSK4SPTVN1PROD with RULES
SUMMARY:
VerDate Mar<15>2010
16:02 Apr 24, 2012
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Germany, Iran, Lebanon, Syria, and the
U.A.E. sections of the Entity List.
The Entity List provides notice to the
public that certain exports, reexports,
and transfers (in-country) to entities
identified on the Entity List require a
license from the Bureau of Industry and
Security (BIS) and that availability of
license exceptions in such transactions
is limited.
DATES: Effective Date: This rule is
effective April 25, 2012.
FOR FURTHER INFORMATION CONTACT:
Karen Nies-Vogel, Chair, End-User
Review Committee, Office of the
Assistant Secretary, Export
Administration, Bureau of Industry and
Security, Department of Commerce,
Phone: (202) 482–5991, Fax: (202) 482–
3911, Email: ERC@bis.doc.gov.
SUPPLEMENTARY INFORMATION:
Background
The Entity List (Supplement No. 4 to
Part 744) provides notice to the public
that certain exports, reexports, and
transfers (in-country) to entities
identified on the Entity List require a
license from the Bureau of Industry and
Security and that the availability of
license exceptions in such transactions
is limited. Entities are placed on the
Entity List on the basis of certain
sections of part 744 (Control Policy:
End-User and End-Use Based) of the
EAR.
The ERC, composed of representatives
of the Departments of Commerce
(Chair), State, Defense, Energy and,
when appropriate, the Treasury, makes
all decisions regarding additions to,
removals from, or other modifications to
the Entity List. The ERC makes all
decisions to add an entry to the Entity
List by majority vote and all decisions
to remove or modify an entry by
unanimous vote.
ERC Entity List Decisions
Additions to the Entity List
This rule implements the decision of
the ERC to add two persons, located in
France, to the Entity List on the basis of
Section 744.11 (license requirements
that apply to entities acting contrary to
the national security or foreign policy
interests of the United States) of the
EAR. The ERC reviewed Section
744.11(b) (Criteria for revising the Entity
List) in making the determination to add
the two persons located in France to the
Entity List. Under that paragraph,
persons for which there is reasonable
cause to believe, based on specific and
articulable facts, that the persons have
been involved, are involved, or pose a
significant risk of being or becoming
involved in, activities that are contrary
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24587
to the national security or foreign policy
interests of the United States and those
acting on behalf of such persons may be
added to the Entity List pursuant to
Section 744.11. Paragraphs (b)(1)–(b)(5)
of Section 744.11 include an illustrative
list of activities that could be contrary
to the national security or foreign policy
interests of the United States.
The ERC has reasonable cause to
believe that the two persons in France
(one company and one individual, an
employee of the company) have been
involved, are involved, or pose a
significant risk of being or becoming
involved in, activities that could be
contrary to the national security or
foreign policy interests of the United
States. Specifically, BIS’s investigation
of the company, Toulouse Air Spares
SAS, indicates direct physical and
corporate nexus with Aerotechnic
France SAS, an Entity List person (76
FR 37632, 6/28/2011). Therefore,
pursuant to Section 744.11(b)(5) of the
EAR, the ERC determined that the
company Toulouse Air Spares SAS and
Laurence Mattiucci, the company’s
president, are engaging in conduct that
poses a risk of violating the EAR and
that such conduct raises sufficient
concern that prior review of exports,
reexports or transfers (in-country) of
items subject to the EAR involving
either of the two persons, and the
possible imposition of license
conditions or license denials, will
enhance BIS’s ability to prevent
violations of the EAR.
For both of the persons added to the
Entity List, the ERC specified a license
requirement for all items subject to the
EAR and established a license
application review policy of a
presumption of denial. The license
requirement applies to any transaction
in which items are to be exported,
reexported, or transferred (in-country) to
such persons or in which such persons
act as purchaser, intermediate
consignee, ultimate consignee, or enduser. In addition, no license exceptions
are available for exports, reexports, or
transfers (in-country) to those persons
being added to the Entity List.
This final rule adds the following two
persons to the Entity List:
France
(1) Toulouse Air Spares SAS, 8 Rue de
la Bruyere, 31120 Pinsaguel, Toulouse,
France; and
(2) Laurence Mattiucci, 8 Rue de la
Bruyere, 31120 Pinsaguel, Toulouse,
France.
Annual Review of the Entity List
This rule also amends the Entity List
on the basis of the annual review of the
E:\FR\FM\25APR1.SGM
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]]>Agencies
[Federal Register Volume 77, Number 80 (Wednesday, April 25, 2012)]
[Rules and Regulations]
[Pages 24585-24587]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-9789]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2012-0010; Directorate Identifier 2012-NE-03-AD;
Amendment 39-17035; AD 2012-08-18]
RIN 2120-AA64
Airworthiness Directives; Turbomeca S.A. Turboshaft Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for all
Turbomeca S.A. Arriel 2B and 2B1 turboshaft engines. This AD was
prompted by the discovery of non-conformities of certain power turbine
(PT) blade fir-tree roots. This AD requires removing the affected PT
blades from service on or before reaching a new reduced life limit for
those certain PT blades. We are issuing this AD to prevent PT blade
rupture, which could result in an uncommanded in-flight engine
shutdown, forced autorotation landing, or accident.
DATES: This AD is effective May 30, 2012.
ADDRESSES: For service information identified in this AD, contact
Turbomeca, 40220 Tarnos, France; phone: 33 05 59 74 40 00; fax: 33 05
59 74 45 15. You may review copies of the referenced service
information at the FAA, Engine & Propeller Directorate, 12 New England
Executive Park, Burlington, MA. For information on the availability of
this material at the FAA, call 781-238-7125.
Examining the AD Docket
You may examine the AD docket on the Internet at https://www.regulations.gov; or in person at the Docket Management Facility
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 address for the
Docket Office (phone: 800-647-5527) is Document Management Facility,
U.S. Department of Transportation, Docket Operations, M-30, West
Building Ground Floor, Room W12-140, 1200
[[Page 24586]]
New Jersey Avenue SE., Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Rose Len, Aerospace Engineer, Engine
Certification Office, FAA, Engine & Propeller Directorate, 12 New
England Executive Park, Burlington, MA 01803; phone: 781-238-7772; fax:
781-238-7199; email: rose.len@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would apply to the specified products.
That NPRM published in the Federal Register on January 20, 2012 (77 FR
2930). That NPRM proposed to require removing the affected PT blades
from service on or before reaching a new reduced life limit for those
certain PT blades.
Comments
We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM (77 FR 2930, January 20,
2012).
Clarification of Compliance Time
Since we issued the proposed AD, we determined that we need to
clarify the compliance time. The proposed AD stated 5,000 flight
cycles. We changed the AD to state 5,000 flight cycles-since-new.
Conclusion
We reviewed the relevant data and determined that air safety and
the public interest require adopting the AD with the change described
previously.
Costs of Compliance
Based on the service information, we estimate that this AD will
affect about 150 engines installed on helicopters of U.S. registry. We
also estimate that it will take about 4 work-hours per product to
comply with this AD. The average labor rate is $85 per work-hour. A
prorated replacement M04 module will cost about $20,000 per engine.
Based on these figures, we estimate the cost of the AD on U.S.
operators to be $3,051,000.
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
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) Is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979),
(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.
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):
2012-08-18 Turbomeca S.A: Amendment 39-17035; Docket No. FAA-2012-
0010; Directorate Identifier 2012-NE-03-AD.
(a) Effective Date
This AD is effective May 30, 2012.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Turbomeca S.A. Arriel 2B and 2B1 turboshaft
engines with at least one installed power turbine (PT) blade part
number (P/N) 2 292 81 A01 0, serial numbers (S/Ns) 102782 through
120230 inclusive, or, S/Ns 120293 through 120390 inclusive.
(d) Reason
This AD was prompted by the detection of geometric non-
conformities on PT blade fir-tree roots. We are issuing this AD to
prevent PT blade rupture, which could result in an uncommanded in-
flight engine shutdown, forced autorotation landing, or accident.
(e) Actions and Compliance
Unless already done, do the following actions within 5,000
flight cycles-since-new (CSN) on the PT blades, or within one month
after the effective date of this AD, whichever occurs later.
(1) Replace the PT blades with PT blades eligible for
installation; or
(2) Replace the M04 module with an M04 module having PT blades
eligible for installation; or
(3) Replace the PT wheel assembly with a PT wheel assembly
having PT blades eligible for installation.
(4) Guidance on the replacements specified in paragraphs (e)(1)
through (e)(3) can be found in Turbomeca S.A. Alert Mandatory
Service Bulletin No. A292 72 2842, Version A, dated September 23,
2011.
(f) Definition
For the purposes of this AD, a PT blade eligible for
installation is one not listed in paragraph (c) of this AD or, one
listed in paragraph (c) of this AD with fewer than 5,000 flight CSN.
(g) Installation Prohibition
From the effective date of this AD:
(1) Do not install a PT blade as listed in paragraph (c) of this
AD, that has 5,000 or more flight CSN, into any engine.
(2) Do not install any engine with a PT blade as listed in
paragraph (c) of this AD, that has 5,000 or more flight CSN, onto a
helicopter.
(h) Alternative Methods of Compliance (AMOCs)
The Manager, Engine Certification Office, may approve AMOCs for
this AD. Use the procedures found in 14 CFR 39.19 to make your
request.
(i) Related Information
(1) For more information about this AD, contact Rose Len,
Aerospace Engineer, Engine Certification Office, FAA, Engine &
Propeller Directorate, 12 New England Executive Park, Burlington, MA
01803; phone: 781-238-7772; fax: 781-238-7199; email:
rose.len@faa.gov.
(2) Refer to MCAI EASA Airworthiness Directive 2011-0218, dated
November 10, 2011, and Turbomeca S.A. Alert Mandatory Service
Bulletin No. A292 72 2842, Version A, dated September 23, 2011, for
related information.
(3) For service information identified in this AD, contact
Turbomeca, 40220 Tarnos, France; phone: 33 05 59 74 40 00; fax: 33
05
[[Page 24587]]
59 74 45 15. You may review copies of the referenced service
information at the FAA, Engine & Propeller Directorate, 12 New
England Executive Park, Burlington, MA. For information on the
availability of this material at the FAA, call 781-238-7125.
(j) Material Incorporated by Reference
None.
Issued in Burlington, Massachusetts, on April 17, 2012.
Peter A. White,
Manager, Engine & Propeller Directorate, Aircraft Certification
Service.
[FR Doc. 2012-9789 Filed 4-24-12; 8:45 am]
BILLING CODE 4910-13-P
