Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbojet Engines, 17082-17083 [2013-06174]
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17082
Federal Register / Vol. 78, No. 54 / Wednesday, March 20, 2013 / Rules and Regulations
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2012–1006; Directorate
Identifier 2012–NE–28–AD; Amendment 39–
17392; AD 2013–05–20]
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 was published in the Federal
Register on November 7, 2012 (77 FR
66769). That NPRM proposed to correct
an unsafe condition for the specified
products. The Mandatory Continuing
Airworthiness Information states:
Comments
We gave the public the opportunity to
participate in developing this AD. We
received no comments on the NPRM (77
FR 66769, November 7, 2012).
However, we made editorial changes
to paragraph (e) of this AD for
clarification purposes. Paragraphs (e)(1)
and (e)(2) were re-written to clearly
define the drawdown for engines that
have accumulated more then 4,500
engine cycles since the last engine shop
visit on the effective date of the AD. If
an engine had greater than 4,500 cycles
since the last engine shop visit,
paragraph (e)(1) of the NPRM (77 FR
66769, November 7, 2012) could be
interpreted to mean that the actions
were required before further flight. This
is not the intent of the proposed rule.
Paragraph (e)(2) of the NPRM specified
that an inspection within 100 engine
cycles was required for engines with
greater than 4,400 cycles since last shop
visit, but we determined that this could
be confusing. We therefore changed
paragraphs (e)(1) and (e)(2) in the final
rule to:
(1) If engine cycles accumulated since
the last engine shop visit are 4,400
cycles or more on the effective date of
this AD, visually inspect the bolts
installed in the low-pressure turbine
(LPT) support assembly, high-pressure
turbine (HPT) bearing support assembly,
and HPT air seal sleeve within 100
engine cycles-in-service.
(2) If engine cycles accumulated since
the last engine shop visit are fewer than
4,400 cycles on the effective date of this
AD, visually inspect the bolts installed
in the LPT support assembly, HPT
bearing support assembly, and HPT air
seal sleeve before accumulating 4,500
engine cycles since the last shop visit.
Paragraph (e) was also modified to
clarify that the type of inspection
required is a visual inspection. The
NPRM only stated to ‘‘inspect.’’
Paragraph (e) was also modified by
removing the reporting requirement,
because that requirement is not
necessary to correct the unsafe
condition.
The results of a recent quality review of
low pressure turbine (LPT) support assembly,
high pressure turbine (HPT) bearing support
assembly and HPT air seal sleeve bolts
identified that, before installation, those bolts
are not subjected to a complete quality
Conclusion
We reviewed the available data and
determined that air safety and the
public interest require adopting the AD
with the changes described previously.
RIN 2120–AA64
Airworthiness Directives; Rolls-Royce
Deutschland Ltd & Co KG Turbojet
Engines
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
SUMMARY: We are adopting a new
airworthiness directive (AD) for certain
Rolls-Royce Deutschland Ltd & Co KG
(RRD) Spey 511–8 turbojet engines. This
AD requires inspection and, if
necessary, replacement of affected bolts
and, if any bolt is found broken,
inspection of the adjacent disc(s) for
damage. This AD was prompted by a
recent quality review determination that
bolts with reduced material properties
may have been installed in some
engines. We are issuing this AD to
prevent uncontained turbine disc
fracture and damage to the airplane.
DATES: This AD becomes effective April
24, 2013.
ADDRESSES: The Docket Operations
office is located at Docket Management
Facility, U.S. Department of
Transportation, 1200 New Jersey
Avenue SE., West Building Ground
Floor, Room W12–140, Washington, DC
20590–0001.
FOR FURTHER INFORMATION CONTACT:
Frederick Zink, Aerospace Engineer,
Engine Certification Office, FAA, Engine
& Propeller Directorate, 12 New England
Executive Park, Burlington, MA 01803;
phone: 781–238–7779; fax: 781–238–
7199; email: frederick.zink@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
wreier-aviles on DSK5TPTVN1PROD with RULES
inspection. As a consequence, bolts with
reduced material properties may have been
installed in some engines.
This condition, if not detected and
corrected, could lead to failure of a bolt,
potentially causing turbine disc fracture and
release of high-energy debris, possibly
resulting in damage to the aeroplane and/or
injury to the occupants.
VerDate Mar<14>2013
15:24 Mar 19, 2013
Jkt 229001
PO 00000
Frm 00012
Fmt 4700
Sfmt 4700
We determined that these changes will
not increase the economic burden on
any operator or increase the scope of the
AD.
Costs of Compliance
We estimate that this AD affects about
six engines installed on airplanes of
U.S. registry. We also estimate that it
will take about 2 hours per engine to
comply with this AD. The average labor
rate is $85 per hour. Required parts will
cost about $860 per engine. Based on
these figures, we estimate the cost of the
AD on U.S. operators to be $6,180.
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 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 this AD:
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 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 AD and placed it in the AD docket.
E:\FR\FM\20MRR1.SGM
20MRR1
Federal Register / Vol. 78, No. 54 / Wednesday, March 20, 2013 / Rules and Regulations
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 AD, the regulatory
evaluation, any comments received, and
other information. The street address for
the Docket Operations office (phone:
(800) 647–5527) is provided in the
ADDRESSES section. Comments will be
available in the AD docket shortly after
receipt.
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:
(f) Installation Prohibition
After the effective date of this AD, do not
install any LPT support assembly, HPT
bearing support assembly, or HPT air seal
sleeve into any engine, or any engine onto an
airplane, unless the affected bolts have been
inspected and replaced if necessary, and the
LPT stage 2 disc and HPT stage 1 disc have
been inspected if necessary, as specified in
paragraph (e) of this AD.
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 AD:
■
2013–05–20 Rolls-Royce Deutschland Ltd &
Co KG (formerly Rolls-Royce
Deutschland GmbH, formerly RollsRoyce plc): Amendment 39–17392;
Docket No. FAA–2012–1006; Directorate
Identifier 2012–NE–28–AD.
(a) Effective Date
This airworthiness directive (AD) becomes
effective April 24, 2013.
(b) Affected ADs
None.
wreier-aviles on DSK5TPTVN1PROD with RULES
(c) Applicability
This AD applies to Rolls-Royce
Deutschland Ltd & Co KG (RRD) Spey 511–
8 turbojet engines, serial numbers 8847,
8853, 8879, 8989, 8994, and 9817, with a date
of the last shop visit before November 15,
2007.
(d) Reason
This AD was prompted by a recent quality
review determination that bolts with reduced
material properties may have been installed
in some engines. We are issuing this AD to
prevent uncontained turbine disc fracture
and damage to the airplane.
(e) Actions and Compliance
Unless already done, do the following
actions for engines with a date of the last
shop visit before November 15, 2007:
(1) If engine cycles accumulated since the
last engine shop visit are 4,400 cycles or
VerDate Mar<14>2013
15:24 Mar 19, 2013
Jkt 229001
more on the effective date of this AD,
visually inspect the bolts installed in the
low-pressure turbine (LPT) support assembly,
high-pressure turbine (HPT) bearing support
assembly, and HPT air seal sleeve within 100
engine cycles-in-service.
(2) If engine cycles accumulated since the
last engine shop visit are fewer than 4,400
cycles on the effective date of this AD,
visually inspect the bolts installed in the LPT
support assembly, HPT bearing support
assembly, and HPT air seal sleeve before
accumulating 4,500 engine cycles since the
last shop visit.
(3) If you identify any broken bolt, brown
bolt, or bolt with a rough oxidized surface,
replace all bolts of the inspected engine
flange with new bolts before further flight.
(4) If you find any broken bolt in the LPT
support assembly, visually inspect the LPT
stage 2 disc for damage before further flight.
(5) If you find any broken bolt in the HPT
shaft air seal sleeve, visually inspect the HPT
stage 1 disc for damage before further flight.
(g) Definition
For the purpose of this AD, a shop visit is
when the engine is inducted into the shop for
any maintenance involving the separation of
pairs of major mating engine flanges (lettered
flanges). However, the separation of engine
flanges solely for the purposes of transporting
the engine without subsequent engine
maintenance is not an engine shop visit.
(h) Alternative Methods of Compliance
(AMOCs)
The Manager, Engine Certification Office,
FAA, may approve AMOCs to 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 Frederick Zink, Aerospace Engineer,
Engine Certification Office, FAA, Engine &
Propeller Directorate, 12 New England
Executive Park, Burlington, MA 01803;
phone: 781–238–7779; fax: 781–238–7199;
email: frederick.zink@faa.gov.
(2) Refer to European Aviation Safety
Agency AD 2012–0158, dated August 22,
2012, and RRD Alert Service Bulletin Sp72–
A1068, for related information.
(3) For service information identified in
this AD, contact Rolls-Royce Deutschland Ltd
& Co KG, Eschenweg 11, Dahlewitz, 15827
Blankenfelde-Mahlow, Germany; phone: 49 0
33–7086–1200 (direct 1016); fax: 49 0 33–
7086–1212. You may view this 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.
PO 00000
Frm 00013
Fmt 4700
Sfmt 4700
17083
(j) Material Incorporated by Reference
None.
Issued in Burlington, Massachusetts, on
March 7, 2013.
Colleen M. D’Alessandro,
Assistant Manager, Engine & Propeller
Directorate, Aircraft Certification Service.
[FR Doc. 2013–06174 Filed 3–19–13; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 71
[Docket No. FAA–2012–0121; Airspace
Docket No. 12–AAL–2]
Amendment of Class E Airspace;
Scammon Bay, AK
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
SUMMARY: This action modifies Class E
airspace at Scammon Bay Airport,
Scammon Bay, AK. Controlled airspace
is necessary to accommodate aircraft
using a new Area Navigation (RNAV)
Global Positioning System (GPS)
standard instrument approach
procedures at Scammon Bay Airport.
This action enhances the safety and
management of aircraft operations at the
airport.
DATES: Effective date, 0901 UTC, June
27, 2013. The Director of the Federal
Register approves this incorporation by
reference action under 1 CFR part 51,
subject to the annual revision of FAA
Order 7400.9 and publication of
conforming amendments.
FOR FURTHER INFORMATION CONTACT:
Richard Roberts, Federal Aviation
Administration, Operations Support
Group, Western Service Center, 1601
Lind Avenue SW., Renton, WA, 98057;
telephone (425) 203–4517.
SUPPLEMENTARY INFORMATION:
History
On May 9, 2012, the FAA published
in the Federal Register a notice of
proposed rulemaking to modify
controlled airspace at Scammon Bay,
AK (77 FR 27146). Interested parties
were invited to participate in this
rulemaking effort by submitting written
comments on the proposal to the FAA.
No comments were received.
Class E airspace designations are
published in paragraph 6005, of FAA
Order 7400.9W dated August 8, 2012,
and effective September 15, 2012, which
is incorporated by reference in 14 CFR
71.1. The Class E airspace designations
E:\FR\FM\20MRR1.SGM
20MRR1
Agencies
[Federal Register Volume 78, Number 54 (Wednesday, March 20, 2013)]
[Rules and Regulations]
[Pages 17082-17083]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-06174]
[[Page 17082]]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2012-1006; Directorate Identifier 2012-NE-28-AD;
Amendment 39-17392; AD 2013-05-20]
RIN 2120-AA64
Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG
Turbojet Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Rolls-Royce Deutschland Ltd & Co KG (RRD) Spey 511-8 turbojet engines.
This AD requires inspection and, if necessary, replacement of affected
bolts and, if any bolt is found broken, inspection of the adjacent
disc(s) for damage. This AD was prompted by a recent quality review
determination that bolts with reduced material properties may have been
installed in some engines. We are issuing this AD to prevent
uncontained turbine disc fracture and damage to the airplane.
DATES: This AD becomes effective April 24, 2013.
ADDRESSES: The Docket Operations office is located at Docket Management
Facility, U.S. Department of Transportation, 1200 New Jersey Avenue
SE., West Building Ground Floor, Room W12-140, Washington, DC 20590-
0001.
FOR FURTHER INFORMATION CONTACT: Frederick Zink, Aerospace Engineer,
Engine Certification Office, FAA, Engine & Propeller Directorate, 12
New England Executive Park, Burlington, MA 01803; phone: 781-238-7779;
fax: 781-238-7199; email: frederick.zink@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 was published in the Federal Register on November 7, 2012 (77
FR 66769). That NPRM proposed to correct an unsafe condition for the
specified products. The Mandatory Continuing Airworthiness Information
states:
The results of a recent quality review of low pressure turbine
(LPT) support assembly, high pressure turbine (HPT) bearing support
assembly and HPT air seal sleeve bolts identified that, before
installation, those bolts are not subjected to a complete quality
inspection. As a consequence, bolts with reduced material properties
may have been installed in some engines.
This condition, if not detected and corrected, could lead to
failure of a bolt, potentially causing turbine disc fracture and
release of high-energy debris, possibly resulting in damage to the
aeroplane and/or injury to the occupants.
Comments
We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM (77 FR 66769, November 7,
2012).
However, we made editorial changes to paragraph (e) of this AD for
clarification purposes. Paragraphs (e)(1) and (e)(2) were re-written to
clearly define the drawdown for engines that have accumulated more then
4,500 engine cycles since the last engine shop visit on the effective
date of the AD. If an engine had greater than 4,500 cycles since the
last engine shop visit, paragraph (e)(1) of the NPRM (77 FR 66769,
November 7, 2012) could be interpreted to mean that the actions were
required before further flight. This is not the intent of the proposed
rule. Paragraph (e)(2) of the NPRM specified that an inspection within
100 engine cycles was required for engines with greater than 4,400
cycles since last shop visit, but we determined that this could be
confusing. We therefore changed paragraphs (e)(1) and (e)(2) in the
final rule to:
(1) If engine cycles accumulated since the last engine shop visit
are 4,400 cycles or more on the effective date of this AD, visually
inspect the bolts installed in the low-pressure turbine (LPT) support
assembly, high-pressure turbine (HPT) bearing support assembly, and HPT
air seal sleeve within 100 engine cycles-in-service.
(2) If engine cycles accumulated since the last engine shop visit
are fewer than 4,400 cycles on the effective date of this AD, visually
inspect the bolts installed in the LPT support assembly, HPT bearing
support assembly, and HPT air seal sleeve before accumulating 4,500
engine cycles since the last shop visit.
Paragraph (e) was also modified to clarify that the type of
inspection required is a visual inspection. The NPRM only stated to
``inspect.''
Paragraph (e) was also modified by removing the reporting
requirement, because that requirement is not necessary to correct the
unsafe condition.
Conclusion
We reviewed the available data and determined that air safety and
the public interest require adopting the AD with the changes described
previously. We determined that these changes will not increase the
economic burden on any operator or increase the scope of the AD.
Costs of Compliance
We estimate that this AD affects about six engines installed on
airplanes of U.S. registry. We also estimate that it will take about 2
hours per engine to comply with this AD. The average labor rate is $85
per hour. Required parts will cost about $860 per engine. Based on
these figures, we estimate the cost of the AD on U.S. operators to be
$6,180.
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 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 this AD:
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 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 AD and placed it in the AD docket.
[[Page 17083]]
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 AD, the regulatory evaluation,
any comments received, and other information. The street address for
the Docket Operations office (phone: (800) 647-5527) is provided in the
ADDRESSES section. Comments will be available in the AD docket shortly
after receipt.
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 AD:
2013-05-20 Rolls-Royce Deutschland Ltd & Co KG (formerly Rolls-Royce
Deutschland GmbH, formerly Rolls-Royce plc): Amendment 39-17392;
Docket No. FAA-2012-1006; Directorate Identifier 2012-NE-28-AD.
(a) Effective Date
This airworthiness directive (AD) becomes effective April 24,
2013.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Rolls-Royce Deutschland Ltd & Co KG (RRD)
Spey 511-8 turbojet engines, serial numbers 8847, 8853, 8879, 8989,
8994, and 9817, with a date of the last shop visit before November
15, 2007.
(d) Reason
This AD was prompted by a recent quality review determination
that bolts with reduced material properties may have been installed
in some engines. We are issuing this AD to prevent uncontained
turbine disc fracture and damage to the airplane.
(e) Actions and Compliance
Unless already done, do the following actions for engines with a
date of the last shop visit before November 15, 2007:
(1) If engine cycles accumulated since the last engine shop
visit are 4,400 cycles or more on the effective date of this AD,
visually inspect the bolts installed in the low-pressure turbine
(LPT) support assembly, high-pressure turbine (HPT) bearing support
assembly, and HPT air seal sleeve within 100 engine cycles-in-
service.
(2) If engine cycles accumulated since the last engine shop
visit are fewer than 4,400 cycles on the effective date of this AD,
visually inspect the bolts installed in the LPT support assembly,
HPT bearing support assembly, and HPT air seal sleeve before
accumulating 4,500 engine cycles since the last shop visit.
(3) If you identify any broken bolt, brown bolt, or bolt with a
rough oxidized surface, replace all bolts of the inspected engine
flange with new bolts before further flight.
(4) If you find any broken bolt in the LPT support assembly,
visually inspect the LPT stage 2 disc for damage before further
flight.
(5) If you find any broken bolt in the HPT shaft air seal
sleeve, visually inspect the HPT stage 1 disc for damage before
further flight.
(f) Installation Prohibition
After the effective date of this AD, do not install any LPT
support assembly, HPT bearing support assembly, or HPT air seal
sleeve into any engine, or any engine onto an airplane, unless the
affected bolts have been inspected and replaced if necessary, and
the LPT stage 2 disc and HPT stage 1 disc have been inspected if
necessary, as specified in paragraph (e) of this AD.
(g) Definition
For the purpose of this AD, a shop visit is when the engine is
inducted into the shop for any maintenance involving the separation
of pairs of major mating engine flanges (lettered flanges). However,
the separation of engine flanges solely for the purposes of
transporting the engine without subsequent engine maintenance is not
an engine shop visit.
(h) Alternative Methods of Compliance (AMOCs)
The Manager, Engine Certification Office, FAA, may approve AMOCs
to 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 Frederick Zink,
Aerospace Engineer, Engine Certification Office, FAA, Engine &
Propeller Directorate, 12 New England Executive Park, Burlington, MA
01803; phone: 781-238-7779; fax: 781-238-7199; email:
frederick.zink@faa.gov.
(2) Refer to European Aviation Safety Agency AD 2012-0158, dated
August 22, 2012, and RRD Alert Service Bulletin Sp72-A1068, for
related information.
(3) For service information identified in this AD, contact
Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, Dahlewitz, 15827
Blankenfelde-Mahlow, Germany; phone: 49 0 33-7086-1200 (direct
1016); fax: 49 0 33-7086-1212. You may view this 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 March 7, 2013.
Colleen M. D'Alessandro,
Assistant Manager, Engine & Propeller Directorate, Aircraft
Certification Service.
[FR Doc. 2013-06174 Filed 3-19-13; 8:45 am]
BILLING CODE 4910-13-P