Airworthiness Directives; Rolls-Royce plc (RR) Turbofan Engines, 54149-54152 [2013-21108]
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Federal Register / Vol. 78, No. 170 / Tuesday, September 3, 2013 / Rules and Regulations
to conform to any recomputed average.
The Committee expects to carry a
$25,000 reserve into the 2013–14 crop
year. It expects to add $11,300 to the
reserve during the year, for a desired
carryout of approximately $36,300,
which is below the limit specified in the
order.
The Committee reviewed and
unanimously recommended 2013–14
crop year expenditures of $97,700. Prior
to arriving at this budget, the Committee
considered information from various
sources, such as the Committee’s
Marketing Subcommittee and Budget
Committee. Alternative expenditure
levels and assessment rates were
discussed by these groups, based upon
the relative value of various projects to
the date industry. The assessment rate
of $0.40 per hundredweight of dates was
then recommended after consideration
of several factors, including the
anticipated 2013–14 crop size, the
Committee’s estimates of the incoming
reserve funds and other income, and
their anticipated expenses.
A review of historical and preliminary
information pertaining to the upcoming
crop year indicates that the grower price
for the 2013–14 crop year could range
between $45.00 and $55.00 per
hundredweight of dates. Utilizing these
estimates and the assessment rate of
$0.40 per hundredweight, the estimated
assessment revenue for the 2013–14
crop year as a percentage of total grower
revenue could range between 0.7 and
0.9 percent.
This action decreases the assessment
obligation imposed on handlers.
Assessments are applied uniformly on
all handlers, and some of the costs may
be passed on to producers. However,
decreasing the assessment rate reduces
the burden on handlers, and may reduce
the burden on producers. In addition,
the Committee’s meeting was widely
publicized throughout the California
date industry, and all interested persons
were invited to attend the meeting and
encouraged to participate in Committee
deliberations on all issues. Like all
Committee meetings, the June 20, 2013,
meeting was a public meeting and all
entities, both large and small, were able
to express views on this issue. Industry
members also discussed the various
possible assessment rates, potential crop
size, and estimated expenses at the
Budget Committee meeting on June 6,
2013. Finally, interested persons are
invited to submit comments on this
interim rule, including the regulatory
and informational impacts of this action
on small businesses.
In accordance with the Paperwork
Reduction Act of 1995, (44 U.S.C.
Chapter 35), the order’s information
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collection requirements have been
previously approved by the Office of
Management and Budget (OMB) and
assigned OMB No. 0581–0178,
‘‘Vegetable and Specialty Crop
Marketing Orders.’’ No changes in those
requirements as a result of this action
are necessary. Should any changes
become necessary, they would be
submitted to OMB for approval.
This action imposes no additional
reporting or recordkeeping requirements
on either small or large Riverside
County, California date handlers. As
with all Federal marketing order
programs, reports and forms are
periodically reviewed to reduce
information requirements and
duplication by industry and public
sector agencies.
AMS is committed to complying with
the E-Government Act, to promote the
use of the internet and other
information technologies to provide
increased opportunities for citizen
access to Government information and
services, and for other purposes.
USDA has not identified any relevant
Federal rules that duplicate, overlap, or
conflict with this rule.
A small business guide on complying
with fruit, vegetable, and specialty crop
marketing agreements and orders may
be viewed at: https://www.ams.usda.gov/
MarketingOrdersSmallBusinessGuide.
Any questions about the compliance
guide should be sent to Jeffrey Smutny
at the previously mentioned address in
the FOR FURTHER INFORMATION CONTACT
section.
After consideration of all relevant
material presented, including the
information and recommendation
submitted by the Committee and other
available information, it is hereby found
that this rule, as hereinafter set forth,
will tend to effectuate the declared
policy of the Act.
Pursuant to 5 U.S.C. 553, it is also
found and determined upon good cause
that it is impracticable, unnecessary,
and contrary to the public interest to
give preliminary notice prior to putting
this rule into effect, and that good cause
exists for not postponing the effective
date of this rule until 30 days after
publication in the Federal Register
because: (1) The 2013–14 crop year
begins on October 1, 2013, and the
marketing order requires that the rate of
assessment for each crop year apply to
all assessable dates handled during such
crop year; (2) the action decreases the
assessment rate for assessable dates
beginning with the 2013–14 crop year;
(3) handlers are aware of this action
which was unanimously recommended
by the Committee at a public meeting
and is similar to other assessment rate
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54149
actions issued in past years; and (4) this
interim rule provides a 60-day comment
period, and all comments timely
received will be considered prior to
finalization of this rule.
List of Subjects in 7 CFR Part 987
Dates, Marketing agreements,
Reporting and recordkeeping
requirements.
For the reasons set forth in the
preamble, 7 CFR part 987 is amended as
follows:
PART 987—DATES PRODUCED OR
PACKED IN RIVERSIDE COUNTY,
CALIFORNIA
1. The authority citation for 7 CFR
part 987 continues to read as follows:
■
Authority: 7 U.S.C. 601–674.
2. Section 987.339 is revised to read
as follows:
■
§ 987.339
Assessment rate.
On and after October 1, 2013, an
assessment rate of $0.40 per
hundredweight is established for
Riverside County, California, dates.
Dated: August 27, 2013.
Rex A. Barnes,
Associate Administrator, Agricultural
Marketing Service.
[FR Doc. 2013–21309 Filed 8–30–13; 8:45 am]
BILLING CODE 3410–02–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2007–28059; Directorate
Identifier 2007–NE–13–AD; Amendment 39–
17526; AD 2013–15–10]
RIN 2120–AA64
Airworthiness Directives; Rolls-Royce
plc (RR) Turbofan Engines
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
We are superseding
airworthiness directive (AD) 2012–10–
12 for all RR RB211–Trent 553–61,
553A2–61, 556–61, 556A2–61, 556B–61,
556B2–61, 560–61, 560A2–61, 768–60,
772–60, 772B–60, 875–17, 877–17, 884–
17, 884B–17, 892–17, 892B–17, and
895–17 turbofan engines. AD 2012–10–
12 required inspecting the intermediatepressure (IP) compressor rotor shaft rear
balance land for cracks. We are issuing
this AD to require inspections of the IP
compressor rotor shaft, as required by
AD 2012–10–12, to add on-wing
SUMMARY:
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inspections for the Trent 500 engines,
and to add on-wing and in-shop
inspections for the Trent 900 engines.
This AD was prompted by detection of
a crack in a Trent 500 IP compressor
rotor shaft rear balance land during a
shop visit. Further engineering
evaluation, done by RR, concluded that
the cracking may also exist in Trent 900
engines. We are issuing this AD to
detect cracking on the IP compressor
rotor shaft rear balance land, which
could lead to uncontained engine failure
and damage to the airplane.
DATES: This AD is effective October 8,
2013.
The Director of the Federal Register
approved the incorporation by reference
(IBR) of certain publication listed in the
AD as of October 8, 2013.
The Director of the Federal Register
approved the IBR of certain other
publications listed in this AD as of June
29, 2012 (77 FR 31176, May 25, 2012).
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 service information identified in
this AD, contact Rolls-Royce plc,
Corporate Communications, P.O. Box
31, Derby, England, DE248BJ; phone:
011–44–1332–242424; fax: 011–44–
1332–245418; email: https://www.rollsroyce.com/contact/civil_team.jsp. 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.
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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 Mandatory
Continuing Airworthiness Information
(MCAI), the regulatory evaluation, any
comments received, and other
information. The street address for the
Docket Office (phone: 800–647–5527) is
provided in the ADDRESSES section.
Comments will be available in the AD
docket shortly after receipt.
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.
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SUPPLEMENTARY INFORMATION:
Conclusion
Discussion
We reviewed the relevant data,
considered the comments received, and
determined that air safety and the
public interest require adopting this AD
as proposed except for minor editorial
changes. We have determined that these
minor changes:
• Are consistent with the intent that
was proposed in the NPRM (78 FR
17300, March 21, 2013) for correcting
the unsafe condition; and
• Do not add any additional burden
upon the public than was already
proposed in the NPRM (78 FR 17300,
March 21, 2013).
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2012–10–12,
Amendment 39–17061 (77 FR 31176,
May 25, 2012). AD 2012–10–12 applied
to the specified products. The NPRM
published in the Federal Register on
March 21, 2013 (78 FR 17300). The
NPRM proposed to require inspections
of the IP compressor rotor shaft, as
required by AD 2012–10–12, on-wing
inspections for the Trent 500 engines,
and on-wing and in-shop inspections for
the Trent 900 engines.
Costs of Compliance
Comments
We gave the public the opportunity to
participate in developing this AD. The
following presents the comments
received on the proposal and the FAA’s
response to each comment.
Request To Not Include Revision Level
of Service Bulletin (SB)
Texas Aero Engine Service LLC
(TAESL) requested that we not include
the revision of the SB or that we include
‘‘or later revision’’ in the AD. The
commenter’s justification for this
request is that the SBs are revised often.
We do not agree. The SBs contain
unique methods that require IBR. We do
not know how a SB will be revised in
the future; therefore, we cannot use ‘‘or
later revision’’. Any future revisions can
be addressed using paragraph (m) of this
AD. We did not change the AD.
Request To Include an Alternate
Method of Compliance
TAESL requested that RR SB No.
RB.211–72–AG401 be included as an
alternative means of compliance and
that the requirement to perform an eddy
current inspection (ECI), on engines
which have had the new balance
weights fitted using RR SB No. RB.211–
72–AG401, be removed. The
justification for this request is that the
SB describes procedures for replacing
the existing balance weights with new
balance weights.
We do not agree. The unsafe
condition was identified in the existing
balance weights that were installed. RR
SB No. RB.211–72–AG401 introduces
the new balance weights. In paragraph
(j) of this AD we mandate removal of the
existing balance weights as terminating
action, as opposed to installation of the
new balance weights. We did not IBR
RR SB No. RB.211–72–AG401 because
there could be future versions of the
balance weights that would also be
acceptable. We did not change the AD.
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We estimate that this AD will affect
about 136 engines installed on airplanes
of U.S. registry. We also estimate that it
will take about 14 hours per engine to
perform the required inspections. The
average labor rate is $85 per hour.
Replacement parts are estimated to cost
about $2,271 per engine. Based on these
figures, we estimate the cost of the AD
on U.S. operators to be $470,696.
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 have determined that this AD will
not have federalism implications under
Executive Order 13132. This AD will
not have a substantial direct effect on
the States, on the relationship between
the national government and the States,
or on the distribution of power and
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify that this AD:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
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(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, to the extent that it justifies
making a regulatory distinction, 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
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
removing airworthiness directive (AD)
2012–10–12, Amendment 39–17061 (77
FR 31176, May 25, 2012), and adding
the following new AD:
■
2013–15–10 Rolls-Royce plc: Amendment
39–17526; Docket No. FAA–2007–28059;
Directorate Identifier 2007–NE–13–AD.
(a) Effective Date
This AD is effective October 8, 2013.
(b) Affected ADs
This AD supersedes AD 2012–10–12,
Amendment 39–17061 (77 FR 31176, May 25,
2012).
(c) Applicability
This AD applies to Rolls-Royce plc (RR)
RB211–Trent 553–61, 553A2–61, 556–61,
556A2–61, 556B–61, 556B2–61, 560–61,
560A2–61, 768–60, 772–60, 772B–60, 875–
17, 877–17, 884–17, 884B–17, 892–17, 892B–
17, 895–17, 970–84, 970B–84, 972–84, 972B–
84, 977–84, 977B–84, and 980–84 turbofan
engines.
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(d) Unsafe Condition
This AD was prompted by detection of a
crack in a Trent 500 intermediate-pressure
(IP) compressor rotor shaft rear balance land
with follow-on RR engineering evaluation
concluding that cracking may also exist in
Trent 900 engines. We are issuing this AD to
detect cracking on the IP compressor rotor
shaft rear balance land, which could lead to
uncontained engine failure and damage to
the airplane.
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(e) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(f) RB211–Trent 700 Series Engines—Rear
Balance Land Inspections
(1) Within 625 cycles-in-service (CIS) after
June 29, 2012, or before the next flight after
the effective date of this AD, whichever
occurs later, borescope inspect the IP
compressor rotor shaft rear balance land. Use
RB211 Trent 700 Series Propulsion System
Non-Modification Alert Service Bulletin
(NMASB) No. RB.211–72–AG270, Revision 4,
dated March 21, 2011, sections 3.A.(2)(a)
through 3.A.(2)(c) and 3.A.(3)(a) through
3.A.(3)(c) for in-shop procedures, or 3.B.(2)(a)
through 3.B.(2)(c) and 3.B.(4)(a) through
3.B.(4)(c) for on-wing procedures, to do the
inspection.
(2) Thereafter, repeat the inspection within
every 625 cycles-since-last inspection (CSLI).
You may count CSLI from the last borescope
inspection or the last eddy current inspection
(ECI), whichever occurred last.
(3) At each shop visit after the effective
date of this AD, perform an ECI and visually
inspect the IP compressor rotor shaft rear
balance land, and visually inspect the
balance weights. Use RB211 Trent 700 and
Trent 800 Series Propulsion Systems NMASB
No. RB.211–72–AG085, Revision 2, dated
July 7, 2011, sections 3.A. through 3.C., to do
the inspections.
(g) RB211–Trent 800 Series Engines—Rear
Balance Land Inspections
(1) Within 475 CIS after June 29, 2012, or
before the next flight after the effective date
of this AD, whichever occurs later, borescope
inspect the IP compressor rotor shaft rear
balance land. Use RB211 Trent 800 Series
Propulsion System NMASB No. RB.211–72–
AG264, Revision 5, dated March 21, 2011,
sections 3.A.(2)(b) through 3.A.(2)(c) and
3.A.(3)(a) through 3.A.(3)(c) for in-shop
procedures, or 3.B.(2)(a) through 3.B.(2)(c)
and 3.B.(4)(a) through 3.B.(4)(c) for on-wing
procedures, to do the inspection.
(2) Thereafter, repeat the inspection within
every 475 CSLI. You may count CSLI from
the last borescope inspection or the last ECI,
whichever occurred last.
(3) At each shop visit, perform an ECI and
visually inspect the IP compressor rotor shaft
rear balance land, and visually inspect the
balance weights. Use RB211 Trent 700 and
Trent 800 Series Propulsion Systems NMASB
No. RB.211–72–AG085, Revision 2, dated
July 7, 2011, sections 3.A. through 3.C. and
3.D.(3) to do the inspections.
(h) RB211–Trent 500 Series Engines—Rear
Balance Land Inspections
(1) Within 340 CIS after the effective date
of this AD, borescope inspect the IP
compressor rotor shaft rear balance land. Use
RB211 Trent 500 Series Propulsion Systems
NMASB No. RB.211–72–AH058, dated
December 13, 2012, sections 3.A.(2)(a)
through 3.A.(2)(c), 3.A.(3)(a) through
3.A.(3)(d), and 3.A.(5)(a) through 3.A.(5)(c)
for on-wing procedures, to do the inspection.
(2) Thereafter, repeat the inspection within
every 340 CSLI. You may count CSLI from
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54151
the last borescope inspection or the last ECI,
whichever occurred last.
(3) At each shop visit, perform an ECI and
visually inspect the IP compressor rotor shaft
rear balance land, and visually inspect the
balance weights. Use RB211 Trent 500 and
Trent 900 Series Propulsion Systems NonModification Service Bulletin (NMSB) No.
RB.211–72–G448, Revision 3, dated July 7,
2011, sections 3.D.(4) through 3.D.(5),
3.D.(6)(f) through 3.D.(7)(w), 3.D.(8)(f)
through 3.D.(8)(w), 3.D.(11), 3.D.(12), and
3.D.(e) to do the inspections.
(i) RB211–Trent 900 Series Engines—Rear
Balance Land Inspections
(l) Within 280 flight cycles after the
effective date of this AD, borescope inspect
the IP compressor rotor shaft rear balance
land. Use RB211 Trent 900 Series Propulsion
Systems NMASB No. RB.211–72–AH059,
dated December 11, 2012, sections 3.A.(2)(a)
through 3.A.(2)(c), 3.A.(3)(a) through
3.A.(3)(d), 3.A.(5)(a) through 3.A.(5)(c), and
3.D.(e) to do the inspection.
(2) Thereafter, repeat the inspection within
every 280 CSLI. You may count from the last
borescope inspection or the last ECI,
whichever occurred last.
(3) At each shop visit after the effective
date of this AD, perform an ECI and visually
inspect the IP compressor rotor shaft rear
balance land, and visually inspect the
balance weights. Use RB211 Trent 500 and
Trent 900 Series Propulsion Systems NMSB
No. RB.211–72–G448, Revision 3, dated July
7, 2011, sections 3.D.(4) through 3.D.(5),
3.D.(6)(f) through 3.D.(7)(w), 3.D.(8)(f)
through 3.D.(8)(w), 3.D.(11), and 3.D.(12), to
do the inspection.
(j) Mandatory Termination Action for
RB211–Trent 700 and RB211–Trent 800
Engines
(1) For RB211–Trent 700 engines. At the
next shop visit in which any level of
inspection or strip is scheduled to be carried
out on the IP compressor, remove the existing
IP compressor balance weights.
(2) For RB211–Trent 800 engines. At the
next shop visit in which any level of
inspection or strip is scheduled to be carried
out on the IP compressor, remove the existing
IP compressor balance weights.
(3) Once you have removed the balance
weights, do not re-install them on any IP
compressor shaft rear balance land.
(k) Credit for Previous Actions
(1) For RB211–Trent 700 series engines:
(i) If you borescope inspected your RB211Trent 700 series engine using RB211 Trent
700 Series Propulsion System NMASB No.
RB.211–72–AG270, Revision 1, dated
December 14, 2009, or Revision 2, dated
December 21, 2010, or Revision 3, dated
February 25, 2011, before the effective date
of this AD, you have satisfied the
requirements of paragraph (f)(1) of this AD.
(ii) If you performed the ECI and visual
inspection of your RB211–Trent 700 series
engine using RB211 Trent 700 and Trent 800
Series Propulsion Systems NMASB No.
RB.211–72–AG085, Revision 1, dated
September 27, 2010, before the effective date
of this AD, you have satisfied the ECI and
visual inspections required by paragraph
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(f)(3) of this AD. You are still required to
perform the repetitive inspections required
by paragraphs (f)(2) and (f)(3) of this AD.
(2) For RB211–Trent 800 series engines:
(i) If you borescope inspected your RB211–
Trent 800 series engine using RB211 Trent
800 Series Propulsion System NMASB No.
RB.211–72–AG264, Revision 3, dated
December 21, 2010, or Revision 4, dated
February 25, 2011, before the effective date
of this AD, you have satisfied the
requirements of paragraph (g)(1) of this AD.
(ii) If you performed the ECI and in-shop
visual inspection of your RB211–Trent 800
series engine using RB211 Trent 700 and
Trent 800 Series Propulsion Systems NMASB
No. RB.211–72–AG085, Revision 1, dated
September 27, 2010, before the effective date
of this AD, you have satisfied the ECI and
visual inspections required by paragraph
(g)(3) of this AD. You are still required to
perform the repetitive inspections required
by paragraphs (g)(2) and (g)(3) of this AD.
(3) For RB211–Trent 500 and 900 series
engines:
(i) If you borescope inspected your RB211–
Trent 500 series engine using RB211 Trent
500, 700 and 800 Series Propulsion Systems
NMASB No. RB.211–72–AF260, Revision 4,
dated July 28, 2009, or using RB211 Trent
500 and Trent 900 Series Propulsion Systems
NMSB No. RB.211–72–G448, Revision 2,
dated December 23, 2010 before the effective
date of this AD, you have satisfied the ECIs
required by paragraph (h)(3) of this AD.
(ii) If you performed the ECI and in-shop
visual inspection of your RB211–Trent 500
series engine using RB211 Trent 500 and
Trent 900 Series Propulsion Systems NMSB
No. RB.211–72–G448, Revision 2, dated
December 23, 2010, before the effective date
of this AD, you have satisfied the ECI and
visual inspections required by paragraph
(h)(3) of this AD. You are still required to
perform the repetitive inspections required
by paragraphs (h)(2) and (h)(3) of this AD.
(4) For RB211–Trent 900 series engines:
(i) If you borescope inspected your RB211–
Trent 900 series engine using RB211 Trent
500 and Trent 900 Series Propulsion Systems
NMSB No. RB.211–72–G448, Revision 2,
dated December 23, 2010, before the effective
date of this AD, you have satisfied the
requirements of paragraph (i)(1) of this AD.
(ii) If you performed the ECI and in-shop
visual inspection of your RB211–Trent 900
series engine using RB211 Trent 500 and
Trent 900 Series Propulsion Systems NMSB
No. RB.211–72–G448, Revision 2, dated
December 23, 2010, before the effective date
of this AD, you have satisfied the ECI and
visual inspections required by paragraph
(i)(3) of this AD. You are still required to
perform the repetitive inspections required
by paragraphs (i)(2) and (i)(3) of this AD.
(l) Definitions
For the purpose of this AD, a shop visit is
defined as introduction of an engine into the
shop and disassembly sufficient to expose
the IP compressor module rear face.
(m) Alternative Methods of Compliance
(AMOCs)
The Manager, Engine Certification Office,
FAA, may approve AMOCs for this AD. Use
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14:09 Aug 30, 2013
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the procedures in 14 CFR 39.19 to make your
request.
(n) 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 2013–0002, dated January 4,
2013, for more information. You may
examine this AD on the Internet at https://
www.regulations.gov/
#!documentDetail;D=FAA–2007–28059–0022.
(o) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR
part 51.
(2) You must use this service information
as applicable to do the actions required by
this AD, unless the AD specifies otherwise.
(3) The following service information was
approved for IBR on October 8, 2013.
(i) Rolls-Royce plc Non-Modification Alert
Service Bulletin No. RB211 Trent 900 Series
Propulsion Systems NMASB No. RB.211–72–
AH059, dated December 11, 2012.
(ii) Rolls-Royce plc Non-Modification Alert
Service Bulletin No. RB211 Trent 500 Series
Propulsion Systems RB.211–72–AH058,
dated December 13, 2012.
(4) The following service information was
approved for IBR on June 29, 2012, (77 FR
31176, May 25, 2012).
(i) Rolls-Royce plc RB211 Trent 700 Series
Propulsion System Non-Modification Alert
Service Bulletin No. RB.211–72–AG270,
Revision 4, dated March 21, 2011.
(ii) Rolls-Royce plc RB211 Trent 700 and
800 Series Propulsion Systems NonModification Alert Service Bulletin No.
RB.211–72–AG085, Revision 2, dated July 7,
2011.
(iii) Rolls-Royce plc RB211 Trent 800
Series Propulsion System Non-Modification
Alert Service Bulletin No. RB.211–72–
AG264, Revision 5, dated March 21, 2011.
(iv) Rolls-Royce plc RB211 Trent 500
Series Propulsion System Non-Modification
Alert Service Bulletin No. RB.211–72–AF260,
Revision 5, dated July 7, 2011.
(v) Rolls-Royce plc RB211 Trent 500 and
900 Series Propulsion Systems NonModification Service Bulletin No. RB.211–
72–G448, Revision 3, dated July 7, 2011.
(5) For service information identified in
this AD, contact Rolls-Royce plc, Corporate
Communications, P.O. Box 31, Derby,
England, DE248BJ; phone: 011–44–1332–
242424; fax: 011–44–1332–245418; Internet:
https://www.rolls-royce.com/contact/civil_
team.jsp.
(6) You may view this service information
at the FAA, Engine & Propeller Directorate,
12 New England Executive Park, Burlington,
MA 01803. For information on the
availability of this material at the FAA, call
781–238–7125.
(7) You may also view this service
information that is IBR at the National
PO 00000
Frm 00006
Fmt 4700
Sfmt 4700
Archives and Records Administration
(NARA). For information on the availability
of this material at NARA, call 202–741–6030,
or go to: https://www.archives.gov/federalregister/cfr/ibr_locations.html.
Issued in Burlington, Massachusetts, on
July 22, 2013.
Colleen M. D’Alessandro,
Assistant Manager, Engine & Propeller
Directorate, Aircraft Certification Service.
[FR Doc. 2013–21108 Filed 8–30–13; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2013–0143; Directorate
Identifier 2013–NE–06–AD; Amendment 39–
17561; AD 2013–16–23]
RIN 2120–AA64
Airworthiness Directives; Rolls-Royce
plc Turbofan Engines
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
We are adopting a new
airworthiness directive (AD) for certain
Rolls-Royce plc (RR) RB211–524B–02;
–524B2–19; –524B3–02; –524B4–02;
–524C2–19; –524D4–19; –524D4–B–19;
–524D4–39; –535C–37; –535E4–37;
–535E4–B–37, and –535E4–B–75
turbofan engines, and all RB211–
524G2–19; –524G3–19; –524H2–19; and
–524H–36 turbofan engines. This AD
requires a one-time inspection of the
front combustion liner (FCL) metering
panel to determine if it is made from
N75 material and, if so, replacing it with
an FCL made from C263 material. This
AD was prompted by the discovery of a
cracked and distorted FCL metering
panel, which was made from N75
material. We are issuing this AD to
prevent hot gases from burning through
the engine casing, which could result in
an under-cowl fire and damage to the
airplane.
SUMMARY:
This AD becomes effective
October 8, 2013.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of October 8, 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.
DATES:
E:\FR\FM\03SER1.SGM
03SER1
Agencies
[Federal Register Volume 78, Number 170 (Tuesday, September 3, 2013)]
[Rules and Regulations]
[Pages 54149-54152]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-21108]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2007-28059; Directorate Identifier 2007-NE-13-AD;
Amendment 39-17526; AD 2013-15-10]
RIN 2120-AA64
Airworthiness Directives; Rolls-Royce plc (RR) Turbofan Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are superseding airworthiness directive (AD) 2012-10-12 for
all RR RB211-Trent 553-61, 553A2-61, 556-61, 556A2-61, 556B-61, 556B2-
61, 560-61, 560A2-61, 768-60, 772-60, 772B-60, 875-17, 877-17, 884-17,
884B-17, 892-17, 892B-17, and 895-17 turbofan engines. AD 2012-10-12
required inspecting the intermediate-pressure (IP) compressor rotor
shaft rear balance land for cracks. We are issuing this AD to require
inspections of the IP compressor rotor shaft, as required by AD 2012-
10-12, to add on-wing
[[Page 54150]]
inspections for the Trent 500 engines, and to add on-wing and in-shop
inspections for the Trent 900 engines. This AD was prompted by
detection of a crack in a Trent 500 IP compressor rotor shaft rear
balance land during a shop visit. Further engineering evaluation, done
by RR, concluded that the cracking may also exist in Trent 900 engines.
We are issuing this AD to detect cracking on the IP compressor rotor
shaft rear balance land, which could lead to uncontained engine failure
and damage to the airplane.
DATES: This AD is effective October 8, 2013.
The Director of the Federal Register approved the incorporation by
reference (IBR) of certain publication listed in the AD as of October
8, 2013.
The Director of the Federal Register approved the IBR of certain
other publications listed in this AD as of June 29, 2012 (77 FR 31176,
May 25, 2012).
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 service information identified in this AD, contact Rolls-Royce
plc, Corporate Communications, P.O. Box 31, Derby, England, DE248BJ;
phone: 011-44-1332-242424; fax: 011-44-1332-245418; email: https://www.rolls-royce.com/contact/civil_team.jsp. 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.
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 Mandatory Continuing
Airworthiness Information (MCAI), the regulatory evaluation, any
comments received, and other information. The street address for the
Docket Office (phone: 800-647-5527) is provided in the ADDRESSES
section. Comments will be available in the AD docket shortly after
receipt.
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 supersede AD 2012-10-12, Amendment 39-17061 (77 FR 31176,
May 25, 2012). AD 2012-10-12 applied to the specified products. The
NPRM published in the Federal Register on March 21, 2013 (78 FR 17300).
The NPRM proposed to require inspections of the IP compressor rotor
shaft, as required by AD 2012-10-12, on-wing inspections for the Trent
500 engines, and on-wing and in-shop inspections for the Trent 900
engines.
Comments
We gave the public the opportunity to participate in developing
this AD. The following presents the comments received on the proposal
and the FAA's response to each comment.
Request To Not Include Revision Level of Service Bulletin (SB)
Texas Aero Engine Service LLC (TAESL) requested that we not include
the revision of the SB or that we include ``or later revision'' in the
AD. The commenter's justification for this request is that the SBs are
revised often.
We do not agree. The SBs contain unique methods that require IBR.
We do not know how a SB will be revised in the future; therefore, we
cannot use ``or later revision''. Any future revisions can be addressed
using paragraph (m) of this AD. We did not change the AD.
Request To Include an Alternate Method of Compliance
TAESL requested that RR SB No. RB.211-72-AG401 be included as an
alternative means of compliance and that the requirement to perform an
eddy current inspection (ECI), on engines which have had the new
balance weights fitted using RR SB No. RB.211-72-AG401, be removed. The
justification for this request is that the SB describes procedures for
replacing the existing balance weights with new balance weights.
We do not agree. The unsafe condition was identified in the
existing balance weights that were installed. RR SB No. RB.211-72-AG401
introduces the new balance weights. In paragraph (j) of this AD we
mandate removal of the existing balance weights as terminating action,
as opposed to installation of the new balance weights. We did not IBR
RR SB No. RB.211-72-AG401 because there could be future versions of the
balance weights that would also be acceptable. We did not change the
AD.
Conclusion
We reviewed the relevant data, considered the comments received,
and determined that air safety and the public interest require adopting
this AD as proposed except for minor editorial changes. We have
determined that these minor changes:
Are consistent with the intent that was proposed in the
NPRM (78 FR 17300, March 21, 2013) for correcting the unsafe condition;
and
Do not add any additional burden upon the public than was
already proposed in the NPRM (78 FR 17300, March 21, 2013).
Costs of Compliance
We estimate that this AD will affect about 136 engines installed on
airplanes of U.S. registry. We also estimate that it will take about 14
hours per engine to perform the required inspections. The average labor
rate is $85 per hour. Replacement parts are estimated to cost about
$2,271 per engine. Based on these figures, we estimate the cost of the
AD on U.S. operators to be $470,696.
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 have determined that this AD will not have federalism
implications under Executive Order 13132. This AD will not have a
substantial direct effect on the States, on the relationship between
the national government and the States, or on the distribution of power
and responsibilities among the various levels of government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
[[Page 54151]]
(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, to the extent
that it justifies making a regulatory distinction, 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 removing airworthiness directive (AD)
2012-10-12, Amendment 39-17061 (77 FR 31176, May 25, 2012), and adding
the following new AD:
2013-15-10 Rolls-Royce plc: Amendment 39-17526; Docket No. FAA-2007-
28059; Directorate Identifier 2007-NE-13-AD.
(a) Effective Date
This AD is effective October 8, 2013.
(b) Affected ADs
This AD supersedes AD 2012-10-12, Amendment 39-17061 (77 FR
31176, May 25, 2012).
(c) Applicability
This AD applies to Rolls-Royce plc (RR) RB211-Trent 553-61,
553A2-61, 556-61, 556A2-61, 556B-61, 556B2-61, 560-61, 560A2-61,
768-60, 772-60, 772B-60, 875-17, 877-17, 884-17, 884B-17, 892-17,
892B-17, 895-17, 970-84, 970B-84, 972-84, 972B-84, 977-84, 977B-84,
and 980-84 turbofan engines.
(d) Unsafe Condition
This AD was prompted by detection of a crack in a Trent 500
intermediate-pressure (IP) compressor rotor shaft rear balance land
with follow-on RR engineering evaluation concluding that cracking
may also exist in Trent 900 engines. We are issuing this AD to
detect cracking on the IP compressor rotor shaft rear balance land,
which could lead to uncontained engine failure and damage to the
airplane.
(e) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(f) RB211-Trent 700 Series Engines--Rear Balance Land Inspections
(1) Within 625 cycles-in-service (CIS) after June 29, 2012, or
before the next flight after the effective date of this AD,
whichever occurs later, borescope inspect the IP compressor rotor
shaft rear balance land. Use RB211 Trent 700 Series Propulsion
System Non-Modification Alert Service Bulletin (NMASB) No. RB.211-
72-AG270, Revision 4, dated March 21, 2011, sections 3.A.(2)(a)
through 3.A.(2)(c) and 3.A.(3)(a) through 3.A.(3)(c) for in-shop
procedures, or 3.B.(2)(a) through 3.B.(2)(c) and 3.B.(4)(a) through
3.B.(4)(c) for on-wing procedures, to do the inspection.
(2) Thereafter, repeat the inspection within every 625 cycles-
since-last inspection (CSLI). You may count CSLI from the last
borescope inspection or the last eddy current inspection (ECI),
whichever occurred last.
(3) At each shop visit after the effective date of this AD,
perform an ECI and visually inspect the IP compressor rotor shaft
rear balance land, and visually inspect the balance weights. Use
RB211 Trent 700 and Trent 800 Series Propulsion Systems NMASB No.
RB.211-72-AG085, Revision 2, dated July 7, 2011, sections 3.A.
through 3.C., to do the inspections.
(g) RB211-Trent 800 Series Engines--Rear Balance Land Inspections
(1) Within 475 CIS after June 29, 2012, or before the next
flight after the effective date of this AD, whichever occurs later,
borescope inspect the IP compressor rotor shaft rear balance land.
Use RB211 Trent 800 Series Propulsion System NMASB No. RB.211-72-
AG264, Revision 5, dated March 21, 2011, sections 3.A.(2)(b) through
3.A.(2)(c) and 3.A.(3)(a) through 3.A.(3)(c) for in-shop procedures,
or 3.B.(2)(a) through 3.B.(2)(c) and 3.B.(4)(a) through 3.B.(4)(c)
for on-wing procedures, to do the inspection.
(2) Thereafter, repeat the inspection within every 475 CSLI. You
may count CSLI from the last borescope inspection or the last ECI,
whichever occurred last.
(3) At each shop visit, perform an ECI and visually inspect the
IP compressor rotor shaft rear balance land, and visually inspect
the balance weights. Use RB211 Trent 700 and Trent 800 Series
Propulsion Systems NMASB No. RB.211-72-AG085, Revision 2, dated July
7, 2011, sections 3.A. through 3.C. and 3.D.(3) to do the
inspections.
(h) RB211-Trent 500 Series Engines--Rear Balance Land Inspections
(1) Within 340 CIS after the effective date of this AD,
borescope inspect the IP compressor rotor shaft rear balance land.
Use RB211 Trent 500 Series Propulsion Systems NMASB No. RB.211-72-
AH058, dated December 13, 2012, sections 3.A.(2)(a) through
3.A.(2)(c), 3.A.(3)(a) through 3.A.(3)(d), and 3.A.(5)(a) through
3.A.(5)(c) for on-wing procedures, to do the inspection.
(2) Thereafter, repeat the inspection within every 340 CSLI. You
may count CSLI from the last borescope inspection or the last ECI,
whichever occurred last.
(3) At each shop visit, perform an ECI and visually inspect the
IP compressor rotor shaft rear balance land, and visually inspect
the balance weights. Use RB211 Trent 500 and Trent 900 Series
Propulsion Systems Non-Modification Service Bulletin (NMSB) No.
RB.211-72-G448, Revision 3, dated July 7, 2011, sections 3.D.(4)
through 3.D.(5), 3.D.(6)(f) through 3.D.(7)(w), 3.D.(8)(f) through
3.D.(8)(w), 3.D.(11), 3.D.(12), and 3.D.(e) to do the inspections.
(i) RB211-Trent 900 Series Engines--Rear Balance Land Inspections
(l) Within 280 flight cycles after the effective date of this
AD, borescope inspect the IP compressor rotor shaft rear balance
land. Use RB211 Trent 900 Series Propulsion Systems NMASB No.
RB.211-72-AH059, dated December 11, 2012, sections 3.A.(2)(a)
through 3.A.(2)(c), 3.A.(3)(a) through 3.A.(3)(d), 3.A.(5)(a)
through 3.A.(5)(c), and 3.D.(e) to do the inspection.
(2) Thereafter, repeat the inspection within every 280 CSLI. You
may count from the last borescope inspection or the last ECI,
whichever occurred last.
(3) At each shop visit after the effective date of this AD,
perform an ECI and visually inspect the IP compressor rotor shaft
rear balance land, and visually inspect the balance weights. Use
RB211 Trent 500 and Trent 900 Series Propulsion Systems NMSB No.
RB.211-72-G448, Revision 3, dated July 7, 2011, sections 3.D.(4)
through 3.D.(5), 3.D.(6)(f) through 3.D.(7)(w), 3.D.(8)(f) through
3.D.(8)(w), 3.D.(11), and 3.D.(12), to do the inspection.
(j) Mandatory Termination Action for RB211-Trent 700 and RB211-Trent
800 Engines
(1) For RB211-Trent 700 engines. At the next shop visit in which
any level of inspection or strip is scheduled to be carried out on
the IP compressor, remove the existing IP compressor balance
weights.
(2) For RB211-Trent 800 engines. At the next shop visit in which
any level of inspection or strip is scheduled to be carried out on
the IP compressor, remove the existing IP compressor balance
weights.
(3) Once you have removed the balance weights, do not re-install
them on any IP compressor shaft rear balance land.
(k) Credit for Previous Actions
(1) For RB211-Trent 700 series engines:
(i) If you borescope inspected your RB211-Trent 700 series
engine using RB211 Trent 700 Series Propulsion System NMASB No.
RB.211-72-AG270, Revision 1, dated December 14, 2009, or Revision 2,
dated December 21, 2010, or Revision 3, dated February 25, 2011,
before the effective date of this AD, you have satisfied the
requirements of paragraph (f)(1) of this AD.
(ii) If you performed the ECI and visual inspection of your
RB211-Trent 700 series engine using RB211 Trent 700 and Trent 800
Series Propulsion Systems NMASB No. RB.211-72-AG085, Revision 1,
dated September 27, 2010, before the effective date of this AD, you
have satisfied the ECI and visual inspections required by paragraph
[[Page 54152]]
(f)(3) of this AD. You are still required to perform the repetitive
inspections required by paragraphs (f)(2) and (f)(3) of this AD.
(2) For RB211-Trent 800 series engines:
(i) If you borescope inspected your RB211-Trent 800 series
engine using RB211 Trent 800 Series Propulsion System NMASB No.
RB.211-72-AG264, Revision 3, dated December 21, 2010, or Revision 4,
dated February 25, 2011, before the effective date of this AD, you
have satisfied the requirements of paragraph (g)(1) of this AD.
(ii) If you performed the ECI and in-shop visual inspection of
your RB211-Trent 800 series engine using RB211 Trent 700 and Trent
800 Series Propulsion Systems NMASB No. RB.211-72-AG085, Revision 1,
dated September 27, 2010, before the effective date of this AD, you
have satisfied the ECI and visual inspections required by paragraph
(g)(3) of this AD. You are still required to perform the repetitive
inspections required by paragraphs (g)(2) and (g)(3) of this AD.
(3) For RB211-Trent 500 and 900 series engines:
(i) If you borescope inspected your RB211-Trent 500 series
engine using RB211 Trent 500, 700 and 800 Series Propulsion Systems
NMASB No. RB.211-72-AF260, Revision 4, dated July 28, 2009, or using
RB211 Trent 500 and Trent 900 Series Propulsion Systems NMSB No.
RB.211-72-G448, Revision 2, dated December 23, 2010 before the
effective date of this AD, you have satisfied the ECIs required by
paragraph (h)(3) of this AD.
(ii) If you performed the ECI and in-shop visual inspection of
your RB211-Trent 500 series engine using RB211 Trent 500 and Trent
900 Series Propulsion Systems NMSB No. RB.211-72-G448, Revision 2,
dated December 23, 2010, before the effective date of this AD, you
have satisfied the ECI and visual inspections required by paragraph
(h)(3) of this AD. You are still required to perform the repetitive
inspections required by paragraphs (h)(2) and (h)(3) of this AD.
(4) For RB211-Trent 900 series engines:
(i) If you borescope inspected your RB211-Trent 900 series
engine using RB211 Trent 500 and Trent 900 Series Propulsion Systems
NMSB No. RB.211-72-G448, Revision 2, dated December 23, 2010, before
the effective date of this AD, you have satisfied the requirements
of paragraph (i)(1) of this AD.
(ii) If you performed the ECI and in-shop visual inspection of
your RB211-Trent 900 series engine using RB211 Trent 500 and Trent
900 Series Propulsion Systems NMSB No. RB.211-72-G448, Revision 2,
dated December 23, 2010, before the effective date of this AD, you
have satisfied the ECI and visual inspections required by paragraph
(i)(3) of this AD. You are still required to perform the repetitive
inspections required by paragraphs (i)(2) and (i)(3) of this AD.
(l) Definitions
For the purpose of this AD, a shop visit is defined as
introduction of an engine into the shop and disassembly sufficient
to expose the IP compressor module rear face.
(m) Alternative Methods of Compliance (AMOCs)
The Manager, Engine Certification Office, FAA, may approve AMOCs
for this AD. Use the procedures in 14 CFR 39.19 to make your
request.
(n) 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 2013-0002,
dated January 4, 2013, for more information. You may examine this AD
on the Internet at https://www.regulations.gov/#!documentDetail;D=FAA-2007-28059-0022.
(o) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless the AD specifies otherwise.
(3) The following service information was approved for IBR on
October 8, 2013.
(i) Rolls-Royce plc Non-Modification Alert Service Bulletin No.
RB211 Trent 900 Series Propulsion Systems NMASB No. RB.211-72-AH059,
dated December 11, 2012.
(ii) Rolls-Royce plc Non-Modification Alert Service Bulletin No.
RB211 Trent 500 Series Propulsion Systems RB.211-72-AH058, dated
December 13, 2012.
(4) The following service information was approved for IBR on
June 29, 2012, (77 FR 31176, May 25, 2012).
(i) Rolls-Royce plc RB211 Trent 700 Series Propulsion System
Non-Modification Alert Service Bulletin No. RB.211-72-AG270,
Revision 4, dated March 21, 2011.
(ii) Rolls-Royce plc RB211 Trent 700 and 800 Series Propulsion
Systems Non-Modification Alert Service Bulletin No. RB.211-72-AG085,
Revision 2, dated July 7, 2011.
(iii) Rolls-Royce plc RB211 Trent 800 Series Propulsion System
Non-Modification Alert Service Bulletin No. RB.211-72-AG264,
Revision 5, dated March 21, 2011.
(iv) Rolls-Royce plc RB211 Trent 500 Series Propulsion System
Non-Modification Alert Service Bulletin No. RB.211-72-AF260,
Revision 5, dated July 7, 2011.
(v) Rolls-Royce plc RB211 Trent 500 and 900 Series Propulsion
Systems Non-Modification Service Bulletin No. RB.211-72-G448,
Revision 3, dated July 7, 2011.
(5) For service information identified in this AD, contact
Rolls-Royce plc, Corporate Communications, P.O. Box 31, Derby,
England, DE248BJ; phone: 011-44-1332-242424; fax: 011-44-1332-
245418; Internet: https://www.rolls-royce.com/contact/civil_team.jsp.
(6) You may view this service information at the FAA, Engine &
Propeller Directorate, 12 New England Executive Park, Burlington, MA
01803. For information on the availability of this material at the
FAA, call 781-238-7125.
(7) You may also view this service information that is IBR at
the National Archives and Records Administration (NARA). For
information on the availability of this material at NARA, call 202-
741-6030, or go to: https://www.archives.gov/federal-register/cfr/ibr_locations.html.
Issued in Burlington, Massachusetts, on July 22, 2013.
Colleen M. D'Alessandro,
Assistant Manager, Engine & Propeller Directorate, Aircraft
Certification Service.
[FR Doc. 2013-21108 Filed 8-30-13; 8:45 am]
BILLING CODE 4910-13-P