Airworthiness Directives; Pratt & Whitney Turbofan Engines, 42424-42425 [2012-17001]
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42424
Federal Register / Vol. 77, No. 139 / Thursday, July 19, 2012 / Rules and Regulations
(iv) If at least one lock washer tab is not
aligned and bent flush with a nut flat surface
and at least one lock washer tab is not
aligned and bent flush with a flat surface of
the clevis assembly, before further flight,
replace the servo with an airworthy servo.
(v) If any tab of the lock washer is not bent
flush against either a flat surface of the nut
or clevis assembly, bend the tab flush against
a flat surface.
(2) After accomplishing paragraphs (f)(1)(i)
through (f)(1)(v), vibro-etch the letter ‘‘V’’ at
the end of the part number on the data plate.
DEPARTMENT OF TRANSPORTATION
(g) Alternative Methods of Compliance
(AMOCs)
AGENCY:
(1) The Manager, Safety Management
Group, FAA, may approve AMOCs for this
AD. Send your proposal to: Matt Wilbanks,
Aviation Safety Engineer, Regulations and
Policy Group, Rotorcraft Directorate, FAA,
2601 Meacham Blvd., Fort Worth, Texas
76137; telephone (817) 222–5110; email
matt.wilbanks@faa.gov.
(2) For operations conducted under a 14
CFR part 119 operating certificate or under
14 CFR part 91, subpart K, we suggest that
you notify your principal inspector, or
lacking a principal inspector, the manager of
the local flight standards district office or
certificate holding district office before
operating any aircraft complying with this
AD through an AMOC.
(h) Additional Information
(1) Bell Helicopter Alert Service Bulletins
407–11–96 and 427–11–35, both Revision B
and both dated August 29, 2011, which are
not incorporated by reference, contain
additional information about the subject of
this AD. For service information identified in
this AD, contact Bell Helicopter Textron
Canada Limited, 12,800 Rue de l’Avenir,
Mirabel, Quebec J7J1R4; telephone (450)
437–2862 or (800) 363–8023; fax (450) 433–
0272; or at https://www.bellcustomer.com/
files/. You may review a copy of the service
information at the FAA, Office of the
Regional Counsel, Southwest Region, 2601
Meacham Blvd., Room 663, Fort Worth,
Texas 76137.
(2) The subject of this AD is addressed in
Transport Canada AD CF–2011–17R1, dated
December 19, 2011.
(i) Subject
14 CFR Part 39
[Docket No. FAA–2010–1095; Directorate
Identifier 2009–NE–40–AD; Amendment 39–
17104; AD 2012–13–02]
RIN 2120–AA64
Airworthiness Directives; Pratt &
Whitney Turbofan Engines
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
We are superseding an
existing airworthiness directive (AD) for
all Pratt & Whitney Division PW4074
and PW4077 turbofan engines. That AD
currently requires removing the 15th
stage high-pressure compressor (HPC)
disk within 12,000 cycles since new
(CSN) or using a drawdown removal
plan for disks that exceed 12,000 CSN.
This new AD requires the same actions
and clarifies that 15th stage HPC disks
that have accumulated more than 9,865
CSN require a borescope inspection
(BSI) or eddy current inspection (ECI) of
the disk outer rim front rail for cracks
prior to accumulating 12,000 CSN. This
AD was prompted by a request from an
operator that we clarify our inspection
schedule for 15th stage HPC disks that
have accumulated more than 9,865, but
less than 12,000 CSN, on the effective
date of the AD. We are issuing this AD
to prevent cracks from propagating into
the disk bolt holes, which could result
in a failure of the 15th stage HPC disk,
uncontained engine failure, and damage
to the airplane.
DATES: This AD is effective August 23,
2012.
The Director of the Federal Register
approved the incorporation by reference
of a certain other publication listed in
this AD as of September 8, 2011 (76 FR
47056, August 4, 2011).
ADDRESSES: For service information
identified in this AD, contact Pratt &
Whitney, 400 Main St., East Hartford,
CT 06108; phone: 860–565–7700; fax:
860–565–1605. You may review copies
of the referenced service information at
the FAA, Engine & Propeller Directorate,
16 New England Executive Park,
Burlington, MA. For information on the
availability of this material at the FAA,
call 781–238–7125.
SUMMARY:
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2011–14–07,
Amendment 39–16742 (76 FR 47056,
August 4, 2011). That AD applies to the
specified products. The NPRM
published in the Federal Register on
February 24, 2012 (77 FR 11017). That
NPRM proposed to continue to require
removing the 15th stage HPC disk
within 12,000 CSN or using a
drawdown removal plan for disks that
exceed 12,000 CSN. That NPRM also
proposed to clarify our inspection
schedule for 15th stage HPC disks that
have accumulated more than 9,865, but
less than 12,000 CSN, on the effective
date of the AD.
Comments
We gave the public the opportunity to
participate in developing this AD. We
have considered the comments received.
United Airlines and The Boeing
Company support the NPRM.
Conclusion
We reviewed the relevant data,
considered the comments received, and
determined that air safety and the
public interest require adopting the AD
as proposed.
Examining the AD Docket
Issued in Fort Worth, Texas, on July 2,
2012.
Kim Smith,
Manager, Rotorcraft Directorate, Aircraft
Certification Service.
[FR Doc. 2012–17561 Filed 7–18–12; 8:45 am]
BILLING CODE 4910–13–P
VerDate Mar<15>2010
16:56 Jul 18, 2012
Jkt 226001
Costs of Compliance
We estimate that this AD will affect
44 engines installed on airplanes of U.S.
registry. Prorated parts life will cost
about $66,000 per 15th stage HPC disk.
Based on these figures, we estimate the
total cost of the AD to U.S. operators to
be $2,904,000. The new requirements of
this AD add no additional economic
burden.
You may examine the AD docket on
the Internet at https://
www.regulations.gov; or in person at the
Docket Management Facility between
Joint Aircraft Service Component (JASC)
Code: 6730, Rotorcraft Servo System.
tkelley on DSK3SPTVN1PROD with RULES
Federal Aviation Administration
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
New Jersey Avenue SE., Washington,
DC 20590.
FOR FURTHER INFORMATION CONTACT: Ian
Dargin, Aerospace Engineer, Engine
Certification Office, FAA, 12 New
England Executive Park, Burlington, MA
01803; phone: 781–238–7178; fax: 781–
238–7199; email: ian.dargin@faa.gov.
SUPPLEMENTARY INFORMATION:
Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
PO 00000
Frm 00008
Fmt 4700
Sfmt 4700
E:\FR\FM\19JYR1.SGM
19JYR1
Federal Register / Vol. 77, No. 139 / Thursday, July 19, 2012 / Rules and Regulations
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,
(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
1. The authority citation for part 39
continues to read as follows:
■
tkelley on DSK3SPTVN1PROD with RULES
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by
removing airworthiness directive (AD)
2011–14–07, Amendment 39–16742 (76
FR 47056, August 4, 2011), and adding
the following new AD:
■
VerDate Mar<15>2010
16:56 Jul 18, 2012
Jkt 226001
2012–13–02 Pratt & Whitney Division:
Amendment 39–17104; Docket No.
FAA–2010–1095; Directorate Identifier
2009–NE–40–AD.
(a) Effective Date
This AD is effective August 23, 2012.
(b) Affected ADs
This AD supersedes AD 2011–14–07,
Amendment 39–16742 (76 FR 47056, August
4, 2011).
(c) Applicability
This AD applies to Pratt & Whitney
Division PW4074 and PW4077 turbofan
engines with 15th stage high-pressure
compressor (HPC) disks, part number (P/N)
55H615, installed.
(d) Unsafe Condition
This AD results from multiple shop
findings of cracked 15th stage HPC disks. We
are issuing this AD to prevent cracks from
propagating into the disk bolt holes, which
could result in a failure of the 15th stage HPC
disk, uncontained engine failure, and damage
to the airplane.
(e) Compliance
Comply with this AD within the
compliance times specified, unless already
done. To perform the inspections, use
paragraph 1.A. or 1.B. of the
Accomplishment Instructions ‘‘For Engines
Installed on the Aircraft’’ or 1.A. or 1.B. of
the Accomplishment Instructions ‘‘For
Engines Removed from the Aircraft,’’ of Pratt
& Whitney Service Bulletin PW4G–112–72–
309, Revision 1, dated July 1, 2010.
(1) For 15th stage HPC disks that have
9,865 or fewer cycles since new (CSN) on the
effective date of this AD, remove the disk
from service before accumulating 12,000
CSN.
(2) For 15th stage HPC disks that have
accumulated more than 9,865 CSN on the
effective date of this AD, do one of the
following:
(i) Remove the disk from service at the next
piece-part exposure, not to exceed 2,135
cycles-in-service (CIS) after the effective date
of this AD.
(ii) Perform a borescope inspection (BSI) or
eddy current inspection (ECI) of the front rail
of the disk outer rim according to the
following schedule:
(A) Within 2,400 cycles-since-last
fluorescent penetrant inspection or ECI, or
(B) Within 1,200 cycles-since-last BSI, or
(C) Before accumulating 12,000 CSN, or
(D) Within 55 CIS after the effective date
of this AD, whichever occurs latest.
(3) If the BSI from paragraph (e)(2)(ii) of
this AD indicates the presence of a crack in
the disk outer rim front rail, but you cannot
visually confirm a crack, perform an ECI
within 5 CIS after the BSI.
(4) If you confirm a crack in the front rail
of the disk outer rim using any inspection
method, remove the disk from service before
further flight.
(f) Alternative Methods of Compliance
(AMOCs)
The Manager, Engine Certification Office,
may approve AMOCs for this AD. Use the
PO 00000
Frm 00009
Fmt 4700
Sfmt 4700
42425
procedures found in 14 CFR 39.19 to make
your request.
(g) Related Information
For more information about this AD,
contact Ian Dargin, Aerospace Engineer,
Engine Certification Office, FAA, 12 New
England Executive Park, Burlington, MA
01803; phone: 781–238–7178; fax: 781–238–
7199; email: ian.dargin@faa.gov.
(h) 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.
(i) Pratt & Whitney Service Bulletin PW4G–
112–72–309, Revision 1, dated July 1, 2010,
approved for IBR September 8, 2011.
(ii) Reserved.
(3) For Pratt & Whitney service information
identified in this AD, contact Pratt &
Whitney, 400 Main St., East Hartford, CT
06108; phone: 860–565–7700; fax: 860–565–
1605.
(4) You may review copies of the
referenced service information at the FAA,
Engine & Propeller Directorate, 16 New
England Executive Park, Burlington, MA. For
information on the availability of this
material at the FAA, call 781–238–7125.
(5) You may also review copies of the
service information that is incorporated by
reference 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
June 19, 2012.
Peter A. White,
Manager, Engine & Propeller Directorate,
Aircraft Certification Service.
[FR Doc. 2012–17001 Filed 7–18–12; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 71
[Docket No. FAA–2012–0621; Airspace
Docket No. 12–ASO–24]
RIN 2120–AA66
Amendment of Air Traffic Service
(ATS) Routes in the Vicinity of Vero
Beach, FL
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule; technical
amendment.
AGENCY:
This action amends the legal
descriptions of Jet Routes J–45 and J–79,
and VHF omnidirectional range (VOR)
SUMMARY:
E:\FR\FM\19JYR1.SGM
19JYR1
Agencies
[Federal Register Volume 77, Number 139 (Thursday, July 19, 2012)]
[Rules and Regulations]
[Pages 42424-42425]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-17001]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2010-1095; Directorate Identifier 2009-NE-40-AD;
Amendment 39-17104; AD 2012-13-02]
RIN 2120-AA64
Airworthiness Directives; Pratt & Whitney Turbofan Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are superseding an existing airworthiness directive (AD)
for all Pratt & Whitney Division PW4074 and PW4077 turbofan engines.
That AD currently requires removing the 15th stage high-pressure
compressor (HPC) disk within 12,000 cycles since new (CSN) or using a
drawdown removal plan for disks that exceed 12,000 CSN. This new AD
requires the same actions and clarifies that 15th stage HPC disks that
have accumulated more than 9,865 CSN require a borescope inspection
(BSI) or eddy current inspection (ECI) of the disk outer rim front rail
for cracks prior to accumulating 12,000 CSN. This AD was prompted by a
request from an operator that we clarify our inspection schedule for
15th stage HPC disks that have accumulated more than 9,865, but less
than 12,000 CSN, on the effective date of the AD. We are issuing this
AD to prevent cracks from propagating into the disk bolt holes, which
could result in a failure of the 15th stage HPC disk, uncontained
engine failure, and damage to the airplane.
DATES: This AD is effective August 23, 2012.
The Director of the Federal Register approved the incorporation by
reference of a certain other publication listed in this AD as of
September 8, 2011 (76 FR 47056, August 4, 2011).
ADDRESSES: For service information identified in this AD, contact Pratt
& Whitney, 400 Main St., East Hartford, CT 06108; phone: 860-565-7700;
fax: 860-565-1605. You may review copies of the referenced service
information at the FAA, Engine & Propeller Directorate, 16 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 New Jersey Avenue SE.,
Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Ian Dargin, Aerospace Engineer, Engine
Certification Office, FAA, 12 New England Executive Park, Burlington,
MA 01803; phone: 781-238-7178; fax: 781-238-7199; email:
ian.dargin@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2011-14-07, Amendment 39-16742 (76 FR 47056,
August 4, 2011). That AD applies to the specified products. The NPRM
published in the Federal Register on February 24, 2012 (77 FR 11017).
That NPRM proposed to continue to require removing the 15th stage HPC
disk within 12,000 CSN or using a drawdown removal plan for disks that
exceed 12,000 CSN. That NPRM also proposed to clarify our inspection
schedule for 15th stage HPC disks that have accumulated more than
9,865, but less than 12,000 CSN, on the effective date of the AD.
Comments
We gave the public the opportunity to participate in developing
this AD. We have considered the comments received. United Airlines and
The Boeing Company support the NPRM.
Conclusion
We reviewed the relevant data, considered the comments received,
and determined that air safety and the public interest require adopting
the AD as proposed.
Costs of Compliance
We estimate that this AD will affect 44 engines installed on
airplanes of U.S. registry. Prorated parts life will cost about $66,000
per 15th stage HPC disk. Based on these figures, we estimate the total
cost of the AD to U.S. operators to be $2,904,000. The new requirements
of this AD add no additional economic burden.
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I,
[[Page 42425]]
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,
(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 removing airworthiness directive (AD)
2011-14-07, Amendment 39-16742 (76 FR 47056, August 4, 2011), and
adding the following new AD:
2012-13-02 Pratt & Whitney Division: Amendment 39-17104; Docket No.
FAA-2010-1095; Directorate Identifier 2009-NE-40-AD.
(a) Effective Date
This AD is effective August 23, 2012.
(b) Affected ADs
This AD supersedes AD 2011-14-07, Amendment 39-16742 (76 FR
47056, August 4, 2011).
(c) Applicability
This AD applies to Pratt & Whitney Division PW4074 and PW4077
turbofan engines with 15th stage high-pressure compressor (HPC)
disks, part number (P/N) 55H615, installed.
(d) Unsafe Condition
This AD results from multiple shop findings of cracked 15th
stage HPC disks. We are issuing this AD to prevent cracks from
propagating into the disk bolt holes, which could result in a
failure of the 15th stage HPC disk, uncontained engine failure, and
damage to the airplane.
(e) Compliance
Comply with this AD within the compliance times specified,
unless already done. To perform the inspections, use paragraph 1.A.
or 1.B. of the Accomplishment Instructions ``For Engines Installed
on the Aircraft'' or 1.A. or 1.B. of the Accomplishment Instructions
``For Engines Removed from the Aircraft,'' of Pratt & Whitney
Service Bulletin PW4G-112-72-309, Revision 1, dated July 1, 2010.
(1) For 15th stage HPC disks that have 9,865 or fewer cycles
since new (CSN) on the effective date of this AD, remove the disk
from service before accumulating 12,000 CSN.
(2) For 15th stage HPC disks that have accumulated more than
9,865 CSN on the effective date of this AD, do one of the following:
(i) Remove the disk from service at the next piece-part
exposure, not to exceed 2,135 cycles-in-service (CIS) after the
effective date of this AD.
(ii) Perform a borescope inspection (BSI) or eddy current
inspection (ECI) of the front rail of the disk outer rim according
to the following schedule:
(A) Within 2,400 cycles-since-last fluorescent penetrant
inspection or ECI, or
(B) Within 1,200 cycles-since-last BSI, or
(C) Before accumulating 12,000 CSN, or
(D) Within 55 CIS after the effective date of this AD, whichever
occurs latest.
(3) If the BSI from paragraph (e)(2)(ii) of this AD indicates
the presence of a crack in the disk outer rim front rail, but you
cannot visually confirm a crack, perform an ECI within 5 CIS after
the BSI.
(4) If you confirm a crack in the front rail of the disk outer
rim using any inspection method, remove the disk from service before
further flight.
(f) 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.
(g) Related Information
For more information about this AD, contact Ian Dargin,
Aerospace Engineer, Engine Certification Office, FAA, 12 New England
Executive Park, Burlington, MA 01803; phone: 781-238-7178; fax: 781-
238-7199; email: ian.dargin@faa.gov.
(h) 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.
(i) Pratt & Whitney Service Bulletin PW4G-112-72-309, Revision
1, dated July 1, 2010, approved for IBR September 8, 2011.
(ii) Reserved.
(3) For Pratt & Whitney service information identified in this
AD, contact Pratt & Whitney, 400 Main St., East Hartford, CT 06108;
phone: 860-565-7700; fax: 860-565-1605.
(4) You may review copies of the referenced service information
at the FAA, Engine & Propeller Directorate, 16 New England Executive
Park, Burlington, MA. For information on the availability of this
material at the FAA, call 781-238-7125.
(5) You may also review copies of the service information that
is incorporated by reference 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 June 19, 2012.
Peter A. White,
Manager, Engine & Propeller Directorate, Aircraft Certification
Service.
[FR Doc. 2012-17001 Filed 7-18-12; 8:45 am]
BILLING CODE 4910-13-P