Airworthiness Directives; Rolls-Royce plc RB211 Series Turbofan Engines, 29586-29588 [06-4713]
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<![CDATA[
29586
Federal Register / Vol. 71, No. 99 / Tuesday, May 23, 2006 / Rules and Regulations
Issued in Renton, Washington, on May 15,
2006.
Kevin M. Mullin,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 06–4677 Filed 5–22–06; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 2003–NE–12–AD; Amendment
39–14609; AD 2006–11–05]
RIN 2120–AA64
Airworthiness Directives; Rolls-Royce
plc RB211 Series Turbofan Engines
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
SUMMARY: The FAA is superseding an
existing airworthiness directive (AD) for
Rolls-Royce plc (RR) RB211–22B series,
RB211–524B, –524C2, –524D4, –524G2,
–524G3, and –524H series, and RB211–
535C and –535E series turbofan engines
with high pressure compressor (HPC)
stage 3 disc assemblies, part numbers
(P/Ns) LK46210, LK58278, LK67634,
LK76036, UL11706, UL15358, UL22577,
UL22578, and UL24738 installed. This
AD requires removing from service
certain disc assemblies before they
reach their full published life if not
modified with anticorrosion protection.
This AD results from the manufacturer’s
reassessment of the corrosion risk on
HPC stage 3 disc assemblies that have
not yet been modified with sufficient
application of anticorrosion protection.
We are issuing this AD to prevent
corrosion-induced uncontained disc
failure, resulting in damage to the
airplane.
This AD becomes effective June
27, 2006. The Director of the Federal
Register previously approved the
incorporation by reference of certain
publications listed in the regulations as
of February 24, 2004 (69 FR 2661,
January 20, 2004).
ADDRESSES: You can get the service
information identified in this AD from
Rolls-Royce plc, P.O. Box 31, Derby,
England, DE248BJ; telephone: 011–44–
1332–242424; fax: 011–44–1332–245–
418.
You may examine the AD docket at
the FAA, New England Region, Office of
the Regional Counsel, 12 New England
Executive Park, Burlington, MA. You
may examine the service information, at
the FAA, New England Region, Office of
dsatterwhite on PROD1PC76 with RULES
DATES:
VerDate Aug<31>2005
19:30 May 22, 2006
Jkt 208001
the Regional Counsel, 12 New England
Executive Park, Burlington, MA.
FOR FURTHER INFORMATION CONTACT: Ian
Dargin, Aerospace Engineer, Engine
Certification Office, FAA, Engine and
Propeller Directorate, 12 New England
Executive Park; Burlington, MA 01803;
telephone (781) 238–7178; fax (781)
238–7199.
SUPPLEMENTARY INFORMATION: We
proposed to amend 14 CFR Part 39 with
a proposed AD. The proposed AD
applies to RR RB211–22B series,
RB211–524B, –524C2, –524D4, –524G2,
–524G3, and –524H series, and RB211–
535C and –535E series turbofan engines
with HPC stage 3 disc assemblies, P/Ns
LK46210, LK58278, LK67634, LK76036,
UL11706, UL15358, UL22577, UL22578,
and UL24738 installed. We published
the proposed AD in the Federal Register
on July 28, 2005 (70 FR 43659). That
action proposed to require removing
from service certain disc assemblies
before they reach their full published
life if not modified with anticorrosion
protection.
Examining the AD Docket
You may examine the AD Docket
(including any comments and service
information), by appointment, between
8 a.m. and 4:30 p.m., Monday through
Friday, except Federal holidays. See
ADDRESSES for the location.
Comments
We provided the public the
opportunity to participate in the
development of this AD. We received no
comments on the proposal or on the
determination of the cost to the public.
Conclusion
We have carefully reviewed the
available data 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
1,000 engines installed on airplanes of
U.S. registry. We also estimate that it
will take about 31 workhours per engine
to perform the actions, and that the
average labor rate is $65 per workhour.
Required parts will cost about $38,000
per engine. Based on these figures, we
estimate the total cost of the AD to U.S.
operators to be $40,015,000.
Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
section 106, describes the authority of
the FAA Administrator. Subtitle VII,
Aviation Programs, describes in more
PO 00000
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Sfmt 4700
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); 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 summary of the costs
to comply with this AD and placed it in
the AD Docket. You may get a copy of
this summary by sending a request to us
at the address listed under ADDRESSES.
Include ‘‘AD Docket No. 2003–NE–12–
AD’’ in your request.
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 Federal Aviation Administration
amends 14 CFR part 39 as follows:
I
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
I
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by
removing Amendment 39–13434 (69 FR
I
E:\FR\FM\23MYR1.SGM
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29587
Federal Register / Vol. 71, No. 99 / Tuesday, May 23, 2006 / Rules and Regulations
2006–11–05 Rolls-Royce plc: Amendment
39–14609. Docket No. 2003–NE–12–AD.
Effective Date
(a) This AD becomes effective June 27,
2006.
Affected ADs
(b) This AD supersedes AD 2004–01–20.
Applicability
(c) This AD applies to Rolls-Royce plc (RR)
RB211–22B series, RB211–524B, –524C2,
–524D4, –524G2, –524G3, and –524H series,
and RB211–535C and –535E series turbofan
engines with high pressure compressor (HPC)
stage 3 disc assemblies, part numbers (P/Ns)
LK46210, LK58278, LK67634, LK76036,
UL11706, UL15358, UL22577, UL22578, and
UL24738 installed. These engines are
installed on, but not limited to, Boeing 747,
Boeing 757, Boeing 767, Lockheed L–1011,
and Tupolev Tu204 series airplanes.
risk on HPC stage 3 disc assemblies that have
not yet been modified with sufficient
application of anticorrosion protection. The
actions specified in this AD are intended to
prevent corrosion-induced uncontained disc
failure, resulting in damage to the airplane.
Unsafe Condition
(d) This AD results from the
manufacturer’s reassessment of the corrosion
2661, January 20, 2004) and by adding
a new airworthiness directive,
Amendment 39–14609, to read as
follows:
(f) Remove from service affected HPC stage
3 disc assemblies identified in the following
Table 1, using one of the following criteria:
Compliance
(e) You are responsible for having the
actions required by this AD performed within
the compliance times specified unless the
actions have already been done.
Removal of HPC Stage 3 Discs
TABLE 1.—AFFECTED HPC STAGE 3 DISC ASSEMBLIES
Rework band for cyclic life accumulated
on disc assemblies P/
Ns LK46210 and
LK58278 (pre RR
service bulletin (SB)
No. RB.211–72–5420)
Engine model
Rework band for cyclic life accumulated
on disc assembly P/N
LK67634 (pre RR SB
No. RB.211–72–5420)
Rework band for cyclic life accumulated
on P/Ns LK76036,
UL11706, UL15358,
UL22577, UL22578,
and UL24738 disc assemblies (pre RR SB
No. RB.211–72–9434)
4,000–6,200
N/A
4,000–6,000
4,000–6,000
4,000–6,000
4,000–6,000
4,000–6,000
4,000–6,000
7,000–10,000
N/A
7,000–9,000
7,000–9,000
7,000–9,000
7,000–9,000
7,000–9,000
7,000–9,000
11,500–14,000
9,000–15,000
11,500–14,000
11,500–14,000
8,500–11,000
11,500–14,000
8,500–11,000
8,500–11,000
dsatterwhite on PROD1PC76 with RULES
–22B series ..............................................................................................
–535E4 series ..........................................................................................
–524B–02, B–B–02, B3–02, and B4 series, Pre SB No. 72–7730 .........
–524B2 and C2 series, Pre SB No. 72–7730 .........................................
–524B2–B–19 and C2–B–19, SB No. 72–7730 ......................................
–524D4 series, Pre SB No. 72–7730 ......................................................
–524D4–B series, SB No. 72–7730 ........................................................
–524G2, G3, H, and H2 series ................................................................
(1) For discs that entered into service
before 1990, remove disc and rework as
specified in paragraph (g)(2) of this AD, on
or before January 4, 2007, but not to exceed
the upper cyclic limit in Table 1 of this AD
before rework. Discs reworked may not
exceed the manufacturer’s published cyclic
limit in the time limits section of the manual.
(2) For discs that entered into service in
1990 or later, remove disc within the cyclic
life rework bands in Table 1 of this AD, or
within 17 years after the date of the disc
assembly entering into service, whichever is
sooner, but not to exceed the upper cyclic
limit of Table 1 of this AD before rework.
Discs reworked may not exceed the
manufacturer’s published cyclic limit in the
time limits section of the manual.
(3) For disc assemblies that when new,
were modified with an application of
anticorrosion protection and re-marked to
P/N LK76036 (not previously machined) as
specified by Part 1 of the original issue of RR
service bulletin (SB) No. RB.211–72–5420,
dated April 20, 1979, remove RB211–22B
disc assemblies before accumulating 10,000
cycles-in-service (CIS), and remove RB211–
524 disc assemblies before accumulating
9,000 CIS.
(4) If the disc assembly date of entry into
service cannot be determined, the date of
disc manufacture may be obtained from RR
and used instead.
(5) Discs in RB211–535C operation are
unaffected by the interim rework cyclic band
limits in Table 1 of this AD, but must meet
the calendar life requirements of either
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19:30 May 22, 2006
Jkt 208001
paragraph (f)(1) or (f)(2) of this AD, as
applicable.
Optional Rework of HPC Stage 3 Discs
(g) Rework HPC stage 3 disc assemblies
that were removed in paragraph (f) of this AD
as follows:
(1) For disc assemblies that when new,
were modified with an application of
anticorrosion protection and re-marked to
P/N LK76036 (not previously machined) as
specified by Part 1 of the original issue of RR
SB RB.211–72–5420, dated April 20, 1979,
rework disc assemblies and re-mark to either
LK76034 or LK78814 using paragraph 2.B. of
the Accomplishment Instructions of RR SB
No. RB.211–72–5420, Revision 4, dated
February 29, 1980. This rework constitutes
terminating action to the removal
requirements in paragraph (f) of this AD.
(2) For all other disc assemblies, rework
using Paragraph 3.B. of the Accomplishment
Instructions of RR SB No. RB.211–72–9434,
Revision 4, dated January 12, 2000. This
rework constitutes terminating action to the
removal requirements in paragraph (f) of this
AD.
Note 1: If rework is done on disc
assemblies that are removed before the disc
assembly reaches the lower life of the cyclic
life rework band in Table 1 of this AD,
artificial aging of the disc to the lower life of
the rework band, at time of rework, is
required.
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Alternative Methods of Compliance
(h) The Manager, Engine Certification
Office, has the authority to approve
alternative methods of compliance for this
AD if requested using the procedures found
in 14 CFR 39.19.
Related Information
(i) Civil Aviation Authority airworthiness
directive 004–01–94, dated January 4, 2002,
and RR Mandatory Service Bulletin No.
RB.211–72–9661, Revision 4, dated January
4, 2002, pertain to the subject of this AD.
Material Incorporated by Reference
(j) You must use Rolls-Royce plc Service
Bulletin No. RB.211–72–5420, Revision 4,
dated February 29, 1980, and Rolls-Royce plc
Service Bulletin No. RB.211–72–9434,
Revision 4, dated January 12, 2000, to
perform the rework required by this AD. The
Director of the Federal Register previously
approved the incorporation by reference of
these service bulletins in accordance with 5
U.S.C. 552(a) and 1 CFR part 51, as of
February 24, 2004 (69 FR 2661, January 20,
2004). You can get copies from Rolls-Royce
plc, PO Box 31, Derby, England, DE248BJ;
telephone: 011–44–1332–242424; fax: 011–
44–1332–245–418. You can review copies at
the FAA, New England Region, Office of the
Regional Counsel, 12 New England Executive
Park, Burlington, MA; or at the National
Archives and Records Administration
(NARA). For information on the availability
of this material at NARA, call 202–741–6030,
E:\FR\FM\23MYR1.SGM
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29588
Federal Register / Vol. 71, No. 99 / Tuesday, May 23, 2006 / Rules and Regulations
or go to: https://www.archives.gov/federalregister/cfr/ibr-locations.html.
Issued in Burlington, Massachusetts, on
May 15, 2006.
Rober J. Ganley,
Acting Manager, Engine and Propeller
Directorate, Aircraft Certification Service.
[FR Doc. 06–4713 Filed 5–22–06; 8:45 am]
BILLING CODE 4910–13–P
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 52
[EPA–R05–OAR–2006–0002; FRL–8166–9]
Approval and Promulgation of Air
Quality Implementation Plans; Indiana
Environmental Protection
Agency (EPA).
ACTION: Direct final rule.
dsatterwhite on PROD1PC76 with RULES
AGENCY:
SUMMARY: EPA is approving revisions to
the Indiana particulate matter (PM10)
State Implementation Plan (SIP). These
revisions are for sources at the ASF
Keystone, Inc. (Keystone) coil spring
manufacturing facility in Lake County,
Indiana. On December 15, 2005, Indiana
requested revisions that will increase
the PM10 emission limit for one unit and
reduce the limits for two units. The
changes result in a net decrease of 1.77
pounds PM10 per hour (lb/hr) in the
allowable emissions. The emission
limits for a fourth unit that has shut
down were also removed. Indiana also
requested removing the process weight
rate limits and using lb/hr as the shortterm emission limit. The maximum
permissible PM10 emissions will not
increase after removing the process
weight rate limits because of the net
decrease in short-term emission limits.
DATES: This direct final rule will be
effective July 24, 2006, unless EPA
receives adverse comments by June 22,
2006. If adverse comments are received,
EPA will publish a timely withdrawal of
the direct final rule in the Federal
Register informing the public that the
rule will not take effect.
ADDRESSES: Submit your comments,
identified by Docket ID No. EPA–R05–
OAR–2006–0002, by one of the
following methods:
• https://www.regulations.gov: Follow
the on-line instructions for submitting
comments.
• E-mail: mooney.john@epa.gov.
• Fax: (312)886–5824.
• Mail: John M. Mooney, Chief,
Criteria Pollutant Section, Air Programs
Branch, (AR–18J), U.S. Environmental
Protection Agency, 77 West Jackson
Boulevard, Chicago, Illinois 60604.
VerDate Aug<31>2005
19:30 May 22, 2006
Jkt 208001
• Hand Delivery: John M. Mooney,
Chief, Criteria Pollutant Section, Air
Programs Branch, (AR–18J), U.S.
Environmental Protection Agency, 77
West Jackson Boulevard, Chicago,
Illinois 60604. Such deliveries are only
accepted during the Regional Office’s
normal hours of operation, and special
arrangements should be made for
deliveries of boxed information. The
Regional Office’s official hours of
business are Monday through Friday,
8:30 a.m. to 4:30 p.m. excluding Federal
holidays.
Instructions: Direct your comments to
Docket ID No. EPA–R05–OAR–2006–
0002. EPA’s policy is that all comments
received will be included in the public
docket without change and may be
made available online at https://
www.regulations.gov, including any
personal information provided, unless
the comment includes information
claimed to be Confidential Business
Information (CBI) or other information
whose disclosure is restricted by statute.
Do not submit information that you
consider to be CBI or otherwise
protected through https://
www.regulations.gov or e-mail. The
www.regulations.gov Web site is an
‘‘anonymous access’’ system, which
means EPA will not know your identity
or contact information unless you
provide it in the body of your comment.
If you send an e-mail comment directly
to EPA without going through https://
www.regulations.gov your e-mail
address will be automatically captured
and included as part of the comment
that is placed in the public docket and
made available on the Internet. If you
submit an electronic comment, EPA
recommends that you include your
name and other contact information in
the body of your comment and with any
disk or CD–ROM you submit. If EPA
cannot read your comment due to
technical difficulties and cannot contact
you for clarification, EPA may not be
able to consider your comment.
Electronic files should avoid the use of
special characters, any form of
encryption, and be free of any defects or
viruses. For additional instructions on
submitting comments, go to Section I of
the SUPPLEMENTARY INFORMATION section
of this document.
Docket: All documents in the docket
are listed in the www.regulations.gov
index. Although listed in the index,
some information is not publicly
available, e.g., CBI or other information
whose disclosure is restricted by statute.
Certain other material, such as
copyrighted material, will be publicly
available only in hard copy. Publicly
available docket materials are available
either electronically in https://
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www.regulations.gov or in hard copy at
the Environmental Protection Agency,
Region 5, Air and Radiation Division, 77
West Jackson Boulevard, Chicago,
Illinois 60604. This Facility is open
from 8:30 a.m. to 4:30 p.m., Monday
through Friday, excluding legal
holidays. We recommend that you
telephone Matt Rau, Environmental
Engineer, at (312) 886–6524 before
visiting the Region 5 office.
SUPPLEMENTARY INFORMATION:
Throughout this document whenever
‘‘we,’’ ‘‘us,’’ or ‘‘our’’ is used, we mean
EPA. This supplementary information
section is arranged as follows:
I. What Should I Consider as I Prepare My
Comments for EPA?
II. What Is EPA Approving?
III. What Is EPA’s Analysis of the Supporting
Materials?
IV. What are the Environmental Effects of
These Actions?
V. What Action is EPA Taking Today?
VI. Statutory and Executive Order Reviews.
I. What Should I Consider as I Prepare
My Comments for EPA?
A. Submitting CBI. Do not submit this
information to EPA through https://
www.regulations.gov or e-mail. Clearly
mark the part or all of the information
that you claim to be CBI. For CBI
information in a disk or CD ROM that
you mail to EPA, mark the outside of the
disk or CD ROM as CBI and then
identify electronically within the disk or
CD ROM the specific information that is
claimed as CBI. In addition to one
complete version of the comment that
includes information claimed as CBI, a
copy of the comment that does not
contain the information claimed as CBI
must be submitted for inclusion in the
public docket. Information so marked
will not be disclosed except in
accordance with procedures set forth in
40 CFR part 2.
B. Tips for Preparing Your Comments.
When submitting comments, remember
to:
• Identify the rulemaking by docket
number and other identifying
information (subject heading, Federal
Register date and page number).
• Explain why you agree or disagree;
suggest alternatives and substitute
language for your requested changes.
• Describe any assumptions and
provide any technical information and/
or data that you used.
• If you estimate potential costs or
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your estimate in sufficient detail to
allow for it to be reproduced.
• Provide specific examples to
illustrate your concerns, and suggest
alternatives.
E:\FR\FM\23MYR1.SGM
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]]>Agencies
[Federal Register Volume 71, Number 99 (Tuesday, May 23, 2006)]
[Rules and Regulations]
[Pages 29586-29588]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 06-4713]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 2003-NE-12-AD; Amendment 39-14609; AD 2006-11-05]
RIN 2120-AA64
Airworthiness Directives; Rolls-Royce plc RB211 Series Turbofan
Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is superseding an existing airworthiness directive
(AD) for Rolls-Royce plc (RR) RB211-22B series, RB211-524B, -524C2, -
524D4, -524G2, -524G3, and -524H series, and RB211-535C and -535E
series turbofan engines with high pressure compressor (HPC) stage 3
disc assemblies, part numbers (P/Ns) LK46210, LK58278, LK67634,
LK76036, UL11706, UL15358, UL22577, UL22578, and UL24738 installed.
This AD requires removing from service certain disc assemblies before
they reach their full published life if not modified with anticorrosion
protection. This AD results from the manufacturer's reassessment of the
corrosion risk on HPC stage 3 disc assemblies that have not yet been
modified with sufficient application of anticorrosion protection. We
are issuing this AD to prevent corrosion-induced uncontained disc
failure, resulting in damage to the airplane.
DATES: This AD becomes effective June 27, 2006. The Director of the
Federal Register previously approved the incorporation by reference of
certain publications listed in the regulations as of February 24, 2004
(69 FR 2661, January 20, 2004).
ADDRESSES: You can get the service information identified in this AD
from Rolls-Royce plc, P.O. Box 31, Derby, England, DE248BJ; telephone:
011-44-1332-242424; fax: 011-44-1332-245-418.
You may examine the AD docket at the FAA, New England Region,
Office of the Regional Counsel, 12 New England Executive Park,
Burlington, MA. You may examine the service information, at the FAA,
New England Region, Office of the Regional Counsel, 12 New England
Executive Park, Burlington, MA.
FOR FURTHER INFORMATION CONTACT: Ian Dargin, Aerospace Engineer, Engine
Certification Office, FAA, Engine and Propeller Directorate, 12 New
England Executive Park; Burlington, MA 01803; telephone (781) 238-7178;
fax (781) 238-7199.
SUPPLEMENTARY INFORMATION: We proposed to amend 14 CFR Part 39 with a
proposed AD. The proposed AD applies to RR RB211-22B series, RB211-
524B, -524C2, -524D4, -524G2, -524G3, and -524H series, and RB211-535C
and -535E series turbofan engines with HPC stage 3 disc assemblies, P/
Ns LK46210, LK58278, LK67634, LK76036, UL11706, UL15358, UL22577,
UL22578, and UL24738 installed. We published the proposed AD in the
Federal Register on July 28, 2005 (70 FR 43659). That action proposed
to require removing from service certain disc assemblies before they
reach their full published life if not modified with anticorrosion
protection.
Examining the AD Docket
You may examine the AD Docket (including any comments and service
information), by appointment, between 8 a.m. and 4:30 p.m., Monday
through Friday, except Federal holidays. See ADDRESSES for the
location.
Comments
We provided the public the opportunity to participate in the
development of this AD. We received no comments on the proposal or on
the determination of the cost to the public.
Conclusion
We have carefully reviewed the available data 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 1,000 engines installed on
airplanes of U.S. registry. We also estimate that it will take about 31
workhours per engine to perform the actions, and that the average labor
rate is $65 per workhour. Required parts will cost about $38,000 per
engine. Based on these figures, we estimate the total cost of the AD to
U.S. operators to be $40,015,000.
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. Subtitle VII, Aviation Programs,
describes in more detail the scope of the Agency's authority.
We are issuing this rulemaking under the authority described in
subtitle VII, part A, subpart III, section 44701, ``General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.
Regulatory Findings
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); 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 summary of the costs to comply with this AD and
placed it in the AD Docket. You may get a copy of this summary by
sending a request to us at the address listed under ADDRESSES. Include
``AD Docket No. 2003-NE-12-AD'' in your request.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
Accordingly, under the authority delegated to me by the Administrator,
the Federal Aviation Administration 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 Amendment 39-13434 (69 FR
[[Page 29587]]
2661, January 20, 2004) and by adding a new airworthiness directive,
Amendment 39-14609, to read as follows:
2006-11-05 Rolls-Royce plc: Amendment 39-14609. Docket No. 2003-NE-
12-AD.
Effective Date
(a) This AD becomes effective June 27, 2006.
Affected ADs
(b) This AD supersedes AD 2004-01-20.
Applicability
(c) This AD applies to Rolls-Royce plc (RR) RB211-22B series,
RB211-524B, -524C2, -524D4, -524G2, -524G3, and -524H series, and
RB211-535C and -535E series turbofan engines with high pressure
compressor (HPC) stage 3 disc assemblies, part numbers (P/Ns)
LK46210, LK58278, LK67634, LK76036, UL11706, UL15358, UL22577,
UL22578, and UL24738 installed. These engines are installed on, but
not limited to, Boeing 747, Boeing 757, Boeing 767, Lockheed L-1011,
and Tupolev Tu204 series airplanes.
Unsafe Condition
(d) This AD results from the manufacturer's reassessment of the
corrosion risk on HPC stage 3 disc assemblies that have not yet been
modified with sufficient application of anticorrosion protection.
The actions specified in this AD are intended to prevent corrosion-
induced uncontained disc failure, resulting in damage to the
airplane.
Compliance
(e) You are responsible for having the actions required by this
AD performed within the compliance times specified unless the
actions have already been done.
Removal of HPC Stage 3 Discs
(f) Remove from service affected HPC stage 3 disc assemblies
identified in the following Table 1, using one of the following
criteria:
Table 1.--Affected HPC Stage 3 Disc Assemblies
----------------------------------------------------------------------------------------------------------------
Rework band for
Rework band for cyclic life
cyclic life Rework band for accumulated on P/Ns
accumulated on disc cyclic life LK76036, UL11706,
Engine model assemblies P/Ns accumulated on disc UL15358, UL22577,
LK46210 and LK58278 assembly P/N LK67634 UL22578, and UL24738
(pre RR service (pre RR SB No. disc assemblies (pre
bulletin (SB) No. RB.211-72-5420) RR SB No. RB.211-72-
RB.211-72-5420) 9434)
----------------------------------------------------------------------------------------------------------------
-22B series................................... 4,000-6,200 7,000-10,000 11,500-14,000
-535E4 series................................. N/A N/A 9,000-15,000
-524B-02, B-B-02, B3-02, and B4 series, Pre SB 4,000-6,000 7,000-9,000 11,500-14,000
No. 72-7730..................................
-524B2 and C2 series, Pre SB No. 72-7730...... 4,000-6,000 7,000-9,000 11,500-14,000
-524B2-B-19 and C2-B-19, SB No. 72-7730....... 4,000-6,000 7,000-9,000 8,500-11,000
-524D4 series, Pre SB No. 72-7730............. 4,000-6,000 7,000-9,000 11,500-14,000
-524D4-B series, SB No. 72-7730............... 4,000-6,000 7,000-9,000 8,500-11,000
-524G2, G3, H, and H2 series.................. 4,000-6,000 7,000-9,000 8,500-11,000
----------------------------------------------------------------------------------------------------------------
(1) For discs that entered into service before 1990, remove disc
and rework as specified in paragraph (g)(2) of this AD, on or before
January 4, 2007, but not to exceed the upper cyclic limit in Table 1
of this AD before rework. Discs reworked may not exceed the
manufacturer's published cyclic limit in the time limits section of
the manual.
(2) For discs that entered into service in 1990 or later, remove
disc within the cyclic life rework bands in Table 1 of this AD, or
within 17 years after the date of the disc assembly entering into
service, whichever is sooner, but not to exceed the upper cyclic
limit of Table 1 of this AD before rework. Discs reworked may not
exceed the manufacturer's published cyclic limit in the time limits
section of the manual.
(3) For disc assemblies that when new, were modified with an
application of anticorrosion protection and re-marked to P/N LK76036
(not previously machined) as specified by Part 1 of the original
issue of RR service bulletin (SB) No. RB.211-72-5420, dated April
20, 1979, remove RB211-22B disc assemblies before accumulating
10,000 cycles-in-service (CIS), and remove RB211-524 disc assemblies
before accumulating 9,000 CIS.
(4) If the disc assembly date of entry into service cannot be
determined, the date of disc manufacture may be obtained from RR and
used instead.
(5) Discs in RB211-535C operation are unaffected by the interim
rework cyclic band limits in Table 1 of this AD, but must meet the
calendar life requirements of either paragraph (f)(1) or (f)(2) of
this AD, as applicable.
Optional Rework of HPC Stage 3 Discs
(g) Rework HPC stage 3 disc assemblies that were removed in
paragraph (f) of this AD as follows:
(1) For disc assemblies that when new, were modified with an
application of anticorrosion protection and re-marked to P/N LK76036
(not previously machined) as specified by Part 1 of the original
issue of RR SB RB.211-72-5420, dated April 20, 1979, rework disc
assemblies and re-mark to either LK76034 or LK78814 using paragraph
2.B. of the Accomplishment Instructions of RR SB No. RB.211-72-5420,
Revision 4, dated February 29, 1980. This rework constitutes
terminating action to the removal requirements in paragraph (f) of
this AD.
(2) For all other disc assemblies, rework using Paragraph 3.B.
of the Accomplishment Instructions of RR SB No. RB.211-72-9434,
Revision 4, dated January 12, 2000. This rework constitutes
terminating action to the removal requirements in paragraph (f) of
this AD.
Note 1: If rework is done on disc assemblies that are removed
before the disc assembly reaches the lower life of the cyclic life
rework band in Table 1 of this AD, artificial aging of the disc to
the lower life of the rework band, at time of rework, is required.
Alternative Methods of Compliance
(h) The Manager, Engine Certification Office, has the authority
to approve alternative methods of compliance for this AD if
requested using the procedures found in 14 CFR 39.19.
Related Information
(i) Civil Aviation Authority airworthiness directive 004-01-94,
dated January 4, 2002, and RR Mandatory Service Bulletin No. RB.211-
72-9661, Revision 4, dated January 4, 2002, pertain to the subject
of this AD.
Material Incorporated by Reference
(j) You must use Rolls-Royce plc Service Bulletin No. RB.211-72-
5420, Revision 4, dated February 29, 1980, and Rolls-Royce plc
Service Bulletin No. RB.211-72-9434, Revision 4, dated January 12,
2000, to perform the rework required by this AD. The Director of the
Federal Register previously approved the incorporation by reference
of these service bulletins in accordance with 5 U.S.C. 552(a) and 1
CFR part 51, as of February 24, 2004 (69 FR 2661, January 20, 2004).
You can get copies from Rolls-Royce plc, PO Box 31, Derby, England,
DE248BJ; telephone: 011-44-1332-242424; fax: 011-44-1332-245-418.
You can review copies at the FAA, New England Region, Office of the
Regional Counsel, 12 New England Executive Park, Burlington, MA; or
at the National Archives and Records Administration (NARA). For
information on the availability of this material at NARA, call 202-
741-6030,
[[Page 29588]]
or go to: https://www.archives.gov/federal-register/cfr/ibr-
locations.html.
Issued in Burlington, Massachusetts, on May 15, 2006.
Rober J. Ganley,
Acting Manager, Engine and Propeller Directorate, Aircraft
Certification Service.
[FR Doc. 06-4713 Filed 5-22-06; 8:45 am]
BILLING CODE 4910-13-P
