[Federal Register: May 13, 2004 (Volume 69, Number 93)]
[Rules and Regulations]
[Page 26494-26498]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr13my04-5]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 2000-NM-145-AD; Amendment 39-13618; AD 2004-09-28]
RIN 2120-AA64
Airworthiness Directives; Lockheed Model L-1011 Series Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule.
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SUMMARY: This amendment supersedes an existing airworthiness directive
(AD), applicable to all Lockheed Model L-1011 series airplanes, that
currently requires the implementation of a corrosion prevention and
control program either by accomplishing specific tasks or by revising
the maintenance inspection program to include such a program. This
action
[[Page 26495]]
requires accomplishment of new specific tasks and visual inspections
for corrosion of certain structural areas and repair if necessary, or
revision of the maintenance inspection program. This amendment relates
to the recommendations of the Airworthiness Assurance Task Force
assigned to review Model L-1011 series airplanes, which indicate that,
to ensure long-term continued operational safety, various structural
inspections should be accomplished. The actions specified by this AD
are intended to prevent structural failure of the airplane due to
corrosion.
DATES: Effective June 17, 2004.
The incorporation by reference of Lockheed Document Number LR
31889, ``Corrosion Prevention and Control Program, TriStar L-1011,''
including Revision D, Appendices A, B, C, and D, dated August 15, 1999,
as listed in the regulations, is approved by the Director of the
Federal Register as of June 17, 2004.
The incorporation by reference of Lockheed Document Number LR
31889, ``Corrosion Prevention and Control Program, TriStar L-1011,''
dated March 15, 1991, including ``Errata Sheet, LR 31889, Corrosion
Prevention and Control Program, TriStar L-1011,'' issued September 29,
1992; as listed in the regulations, was approved previously by the
Director of the Federal Register as of December 17, 1993 (58 FR 60775,
November 18, 1993).
ADDRESSES: The service information referenced in this AD may be
obtained from Lockheed Martin Aircraft & Logistics Centers, 120 Orion
Street, Greenville, South Carolina 29605. This information may be
examined at the Federal Aviation Administration (FAA), Transport
Airplane Directorate, Rules Docket, 1601 Lind Avenue, SW., Renton,
Washington; or at the FAA, Atlanta Aircraft Certification Office, One
Crown Center, 1895 Phoenix Boulevard, suite 450, Atlanta, Georgia; or
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: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html
.
FOR FURTHER INFORMATION CONTACT: Carl Gray, Aerospace Engineer,
Airframe and Propulsion Branch, ACE-117A, FAA, Atlanta Aircraft
Certification Office, One Crown Center, 1895 Phoenix Boulevard, suite
450, Atlanta, Georgia 30349; telephone (770) 703-6031; fax (770) 703-
6097.
SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal
Aviation Regulations (14 CFR part 39) by superseding AD 93-20-03,
amendment 39-8710 (58 FR 60775, November 18, 1993), which is applicable
to all Lockheed Model L-1011 series airplanes, was published in the
Federal Register on April 25, 2001 (66 FR 20760). The action proposed
to continue to require visual inspections, and repair if necessary, of
certain structures, or a revision of the FAA-approved maintenance
inspection program, as required by AD 93-20-03. The action also
proposed to require accomplishment of various visual inspections for
corrosion of certain structures, and repair, if necessary; or
incorporation of Revision D of Lockheed Document Number LR 31889,
``Corrosion Prevention and Control Program, TriStar L-1011,'' dated
August 15, 1999 (``the Document''), into the FAA-approved maintenance
inspection program.
Comments
Interested persons have had an opportunity to participate in the
making of this amendment. Due consideration has been given to the
comments received. The sole commenter, the manufacturer, requests that
certain paragraphs of the proposed AD be revised to correct and to
convey the intent of the AD.
Request To Revise Paragraph (c)(1)
The commenter suggests rewording paragraph (c)(1) of the proposed
AD as follows:
(1) Accomplish corrosion tasks C-55-320-05 Note 4 and C-55-330-05
Note 1, per Revision D of the Document. Thereafter, accomplish these
corrosion tasks at intervals not to exceed 5 years.
The commenter contends that the proposed AD did not specify the
affected Notes of the tasks, and would therefore require the whole task
to be repeated at intervals of 5 years. The commenter explains that
Note 4 to task C-55-320-05 was revised in Revision A of the Document to
require bolt removal for inspection; the rest of this task is required
by AD 93-20-03.
We agree with the request, for the reasons provided by the
commenter. Although AD 93-20-03 is superseded by this AD, its
requirements are restated in paragraphs (a) and (b) of this AD.
Paragraph (c)(1) of this final rule has been revised accordingly.
Request To Revise Paragraph (c)(2)
The commenter suggests rewording paragraph (c)(2) of the proposed
AD as follows:
(2) Accomplish corrosion task C-57-540-02 Note 5 per Revision D of
the Document. Thereafter, accomplish this corrosion task at intervals
not to exceed 5 years.
Again, the proposed AD did not specify the affected Note in paragraph
(c)(2). The commenter explains that, based on operator experience, the
Structures Working Group (SWG) approved changing the repetitive
interval in Note 5 from 10 years to 5 years; this change became
effective in Revision B of the Document. As written, the proposed AD
would also affect the other notes of the task; as a result, the Note 3
task would be required at 5-year intervals instead of the desired 2.5-
year intervals.
We agree with the request, for the reasons provided by the
commenter and as discussed previously. Paragraph (c)(2) of this final
rule has been revised accordingly.
Request To Revise Paragraph (c)(3)
The commenter suggests rewording paragraph (c)(3) of the proposed
AD as follows:
(3) Accomplish corrosion task C-57-530-04 Note 3 per revision D of
the Document. Thereafter, accomplish this corrosion task at intervals
not to exceed 5 years.
Without reference to Note 3 in paragraph (c)(3), the proposed AD would
require repetition of all actions of the task within 5-year intervals.
The commenter explains that Note 3 was added in Revision B of the
Document to address the upper wing access panels in the zones for this
task. The rest of task C-57-530-04 is required by AD 93-20-03.
We agree with the request, for the reasons provided by the
commenter and as discussed previously. Although AD 93-20-03 is
superseded by this AD, its requirements are restated in paragraphs (a)
and (b) of this AD. It is therefore necessary only to refer to Note 3
in paragraph (c). Paragraph (c)(3) of this final rule has been revised
accordingly.
Request To Revise Paragraph (d)
The commenter requests that paragraph (d) of the proposed AD be
revised as follows:
(d) . . . ., in accordance with the procedures specified in Task C-
55-350-01 Note 1 of Revision D of the Document. Thereafter, repeat this
inspection at intervals not to exceed 15 years.
The commenter explains that inspection of the stabilizer bearing within
15-year intervals is required by Note 1 of the task, per Revision D of
the Document.
[[Page 26496]]
The rest of the task is required by AD 93-20-03.
We agree with the request for the reasons provided by the commenter
and as discussed previously. Paragraph (d) of this final rule has been
revised accordingly.
Request To Revise Paragraph (j)
The commenter requests that paragraph (j) of the proposed AD be
revised to refer to Revision ``D'' (instead of Revision ``4'') of the
Document. The commenter considers this a typographical error. We agree.
This final rule has been revised accordingly.
Explanation of Change to Existing Requirements
The FAA has changed all references to a ``detailed visual
inspection'' in the existing AD to ``detailed inspection'' in this
action.
Conclusion
After careful review of the available data, including the comments
noted above, we have determined that air safety and the public interest
require the adoption of the rule with the changes previously described.
We have determined that these changes will neither increase the
economic burden on any operator nor increase the scope of the AD.
Cost Impact
There are approximately 187 Lockheed Model L-1011 series airplanes
of the affected design in the worldwide fleet. We estimate that 117
airplanes of U.S. registry will be affected by this AD.
The actions that are currently required by AD 93-20-03 take about
20 work hours per inspection to accomplish, at an average labor rate of
$65 per work hour. Based on these figures, the cost impact of the
currently required actions on U.S. operators is estimated to be
$152,100, or $1,300 per airplane, per inspection cycle.
The new visual inspections required by this AD will take about 249
work hours per airplane to accomplish, at an average labor rate of $65
per work hour. Based on these figures, the cost impact of the new
requirements of this AD on U.S. operators is estimated to be
$1,893,645, or $16,185 per airplane.
Revising the maintenance inspection program, if accomplished, would
take about 1 work hour per airplane, at an average labor rate of $65
per work hour. Based on these figures, the cost impact of this action
is estimated to be $65 per airplane.
The cost impact figures discussed above are based on assumptions
that no operator has yet accomplished any of the requirements of this
AD, and that no operator would accomplish those actions in the future
if this AD were not adopted. The cost impact figures discussed in AD
rulemaking actions represent only the time necessary to perform the
specific actions actually required by the AD. These figures typically
do not include incidental costs, such as the time required to gain
access and close up, planning time, or time necessitated by other
administrative actions.
Regulatory Impact
The regulations adopted herein 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. Therefore, it
is determined that this final rule does not have federalism
implications under Executive Order 13132.
For the reasons discussed above, I certify that this action (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. A final evaluation has been prepared for this action
and it is contained in the Rules Docket. A copy of it may be obtained
from the Rules Docket at the location provided under the caption
ADDRESSES.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
Accordingly, pursuant to the authority delegated to me by the
Administrator, the Federal Aviation Administration amends part 39 of
the Federal Aviation Regulations (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. Section 39.13 is amended by removing amendment 39-8710 (58 FR 60775,
November 18, 1993), and by adding a new airworthiness directive (AD),
amendment 39-13618, to read as follows:
2004-09-28 Lockheed: Amendment 39-13618. Docket 2000-NM-145-AD.
Supersedes AD 93-20-03, Amendment 39-8710.
Applicability: All Model L-1011 series airplanes, certificated
in any category.
Compliance: Required as indicated, unless accomplished
previously.
To prevent structural failure of the airplane due to corrosion,
accomplish the following:
Restatement of the Requirements of AD 93-20-03:
Note 1: This AD refers to Lockheed Document Number LR 31889,
``Corrosion Prevention and Control Program, TriStar L-1011,'' dated
March 15, 1991, including ``Errata Sheet, LR 31889, Corrosion
Prevention and Control Program, TriStar L-1011,'' issued September
29, 1992; and Revision D, dated August 15, 1999 (hereafter, those
publications are referred to as ``the Document''), for corrosion
tasks, definitions of corrosion levels, compliance times, and
reporting requirements. In addition, this AD specifies inspection
and reporting requirements beyond those included in the Document.
Where there are differences between the AD and the Document, the AD
prevails.
Note 2: As used throughout this AD, the term ``the FAA'' is
defined differently for different operators, as follows: For those
operators complying with paragraph (a) or (c) of this AD, ``the
FAA'' is defined as ``the Manager of the Atlanta Aircraft
Certification Office (ACO).'' For those operators operating under 14
CFR Part 121 or 129, and complying with paragraph (b) or (d) of this
AD, ``the FAA'' is defined as ``the cognizant Maintenance Inspector
at the appropriate FAA Flight Standards office.''
Corrosion Tasks
(a) Except as provided in paragraph (b) of this AD, complete
each of the corrosion tasks specified in Section 4 of the Document
in accordance with the procedures of the Document, and the schedule
specified in paragraphs (a)(1) and (a)(2) of this AD. Corrosion task
numbers C-32-710-01 (nose landing gear) and C-32-730-01 (main
landing gear, left and right) are not required to be accomplished as
part of this AD.
Note 3: A ``corrosion task,'' as defined in Section 4 of the
Document, includes inspections; procedures for a corrective action,
including repairs, under identified circumstances; application of
corrosion inhibitors; and other follow-on actions.
Note 4: Corrosion tasks completed in accordance with the
Document before the effective date of this AD may be credited for
compliance with the initial corrosion task requirements of paragraph
(a)(1) of this AD.
Note 5: Where non-destructive inspection (NDI) methods are
employed, in accordance with Section 4 of the Document, the
standards and procedures used must be acceptable to the
Administrator in accordance with 14 CFR 43.13.
[[Page 26497]]
(1) Complete the initial corrosion task of each ``airplane
area'' specified in Section 4 of the Document as follows:
(i) For airplane areas that have not yet exceeded the
``implementation age'' (IA) for a corrosion task as of one year
after December 17, 1993 (the effective date of AD 93-20-03,
amendment 39-8710): Initial compliance must occur no later than the
IA plus the repeat (R) interval.
(ii) For airplane areas that have exceeded the IA for a
particular corrosion task, as of one year after December 17, 1993:
Initial compliance must occur within one R interval for that task,
measured from a date one year after December 17, 1993.
(iii) For airplanes that have reached or exceeded 20 years after
the date of manufacture as of one year after December 17, 1993:
Initial compliance must occur for each corrosion task within one R
interval for that task, but not to exceed 6 years, measured from a
date one year after December 17, 1993, whichever occurs first.
(iv) Notwithstanding paragraph (a)(1)(i), (a)(1)(ii), or
(a)(1)(iii) of this AD, for airplane areas that exceed the IA for
that area, the operator must accomplish the initial corrosion task
for each such area at a minimum rate equivalent to one such area per
year, beginning one year after December 17, 1993.
Note 6: This paragraph does not require inspection of any area
that has not exceeded the IA for that area.
Note 7: This minimum rate requirement may cause an undue
hardship on some small operators. In those circumstances, requests
for adjustments to the implementation rate will be evaluated on a
case-by-case basis under the provisions of paragraph (h) of this AD.
(2) Repeat each corrosion task at a time interval not to exceed
the R interval specified in the Document for that task.
(b) As an alternative to the requirements of paragraph (a) of
this AD: Prior to one year after December 17, 1993, revise the FAA-
approved maintenance inspection program to include the corrosion
prevention and control program specified in the Document; or to
include an equivalent program that is approved by the FAA. In all
cases, the initial corrosion task for each airplane area must be
completed in accordance with the compliance schedule specified in
paragraph (a)(1) of this AD. Corrosion task numbers C-32-710-01
(nose landing gear) and C-32-730-01 (main landing gear, left and
right) are not required to be accomplished as part of this AD.
(1) Any operator complying with paragraph (b) of this AD may use
an alternative recordkeeping method to that otherwise required by 14
CFR 91.417 or 121.380 for the actions required by this AD, provided
it is approved by the FAA and is included in a revision to the FAA-
approved maintenance inspection program.
(2) Subsequent to the accomplishment of the initial corrosion
task, extensions of R intervals specified in the Document must be
approved by the FAA.
New Requirements of This AD
(c) Except as provided in paragraph (e) of this AD, within 5
years after the effective date of this AD: Complete each of the
corrosion tasks at the times specified in paragraphs (c)(1), (c)(2),
(c)(3), and (c)(4) of this AD in accordance with the procedures
specified in the Document. (Corrosion tasks number C-32-710-01 (nose
landing gear) and C-32-730-01 (main landing gear, left and right)
are not required to be accomplished as part of this AD.)
Note 8: A ``corrosion task,'' as defined in Section 4 of the
Document, includes inspections; procedures for a corrective action,
including repairs, under identified circumstances; application of
corrosion inhibitors; and other follow-on actions.
Note 9: Corrosion tasks completed in accordance with the
Document before the effective date of this AD may be credited for
compliance with the initial corrosion task requirements of paragraph
(a)(1) of this AD.
Note 10: Where non-destructive inspection (NDI) methods are
employed, in accordance with Section 4 of the Document, the
standards and procedures used must be acceptable to the
Administrator in accordance with FAR Section 43.13.
(1) Accomplish corrosion tasks C-55-320-05, Note 4; and C-55-
330-05, Note 1; per Revision D of the Document. Thereafter,
accomplish these corrosion tasks at intervals not to exceed 5 years.
(2) Accomplish corrosion task C-57-540-02, Note 5, per Revision
D of the Document. Thereafter, accomplish this corrosion task at
intervals not to exceed 5 years.
(3) Accomplish corrosion task C-57-530-04, Note 3, per Revision
D of the Document. Thereafter, accomplish this corrosion task at
intervals not to exceed 5 years.
(4) Accomplish corrosion task C-53-310-03, per Revision D of the
Document. Thereafter, accomplish this corrosion task at intervals
not to exceed 10 years.
Inspection of the Horizontal Stabilizer
(d) Within 15 years' time-in-service, or 5 years after the
effective date of this AD, whichever occurs later: Conduct a free-
play inspection of the horizontal stabilizer pivot bearing,
disassemble ALL horizontal stabilizer pivot bearing assemblies, and
perform a detailed inspection of the pivot bearing assembly
components to detect corrosion, in accordance with the procedures
specified in Task C-55-350-01, Note 1, of Revision D of the
Document. Thereafter, repeat this inspection at intervals not to
exceed 15 years.
Note 11: This paragraph does not require inspection of any area
that has not exceeded the IA for that area.
Note 12: For the purposes of this AD, a detailed inspection is
defined as: ``An intensive visual examination of a specific
structural area, system, installation, or assembly to detect damage,
failure, or irregularity. Available lighting is normally
supplemented with a direct source of good lighting at intensity
deemed appropriate by the inspector. Inspection aids such as mirror,
magnifying lenses, etc., may be used. Surface cleaning and elaborate
access procedures may be required.''
Acceptable Alternative Compliance With Certain Requirements
(e) As an alternative to the requirements of paragraphs (c) and
(d) of this AD: Within 90 days after the effective date of this AD,
revise the FAA-approved maintenance program to incorporate and
implement Revision D of Lockheed Document Number LR 31889,
``Corrosion and Protection Control Program, TriStar L-1011,'' dated
August 15, 1999.
Accommodating Scheduling Requirements
(f) To accommodate unanticipated scheduling requirements of
paragraph (c) or (d) of this AD, it is acceptable for an R interval
to be increased by up to 10%, but not to exceed 6 months. The FAA
must be informed, in writing, of any such extension within 30 days
after such adjustment of the schedule.
(g)(1) If, during any inspection conducted in accordance with
this AD, Level 3 corrosion is determined to exist in any airplane
area, accomplish the actions specified in either paragraph (g)(1)(i)
or (g)(1)(ii) of this AD within 7 days after such determination.
Information collection requirements contained in this regulation
have been approved by the Office of Management and Budget (OMB)
under the provisions of the Paperwork Reduction Act of 1980 (44
U.S.C. 3501 et seq.) and have been assigned OMB Control Number 2120-
0056.
(i) Submit a report of that determination to the FAA and
complete the corrosion task in the affected areas on all Model L-
1011 series airplanes in the operator's fleet; or
(ii) Submit to the FAA for approval one of the following:
(A) A proposed schedule for performing the corrosion tasks in
the affected areas on the remaining Model L-1011 series airplanes in
the operator's fleet, which is adequate to ensure that any other
Level 3 corrosion is detected in a timely manner, along with
substantiating data for that schedule; or
(B) Data substantiating that the Level 3 corrosion found is an
isolated occurrence.
Note 13: Notwithstanding the provisions of Section 1 of the
Document, which would permit corrosion that otherwise meets the
definition of Level 3 corrosion (i.e., which is determined to be a
potentially urgent airworthiness concern requiring expeditious
action) to be treated as Level 1 if the operator finds that it ``can
be attributed to an event not typical of the operator's usage of
other airplanes in the same fleet,'' this paragraph requires that
data substantiating any such finding be submitted to the FAA for
approval.
(2) The FAA may impose schedules other than those proposed, upon
finding that such changes are necessary to ensure that any other
Level 3 corrosion is detected in a timely manner.
(3) Within the time schedule approved under paragraph (g)(1) or
(g)(2) of this AD, accomplish the corrosion tasks in the affected
areas of the remaining Model L-1011 series airplanes in the
operator's fleet.
(h) If, as a result of any inspection after an initial
inspection conducted in accordance
[[Page 26498]]
with the requirements of this AD, it is determined that corrosion
findings exceed Level 1 in any area, within 60 days after such
determination, implement a means, approved by the FAA, to reduce
future findings of corrosion in that area to Level 1 or better.
(i) Before any operator places into service any airplane subject
to the requirements of this AD, a schedule for the accomplishment of
corrosion tasks required by this AD must be established in
accordance with paragraph (i)(1) or (i)(2) of this AD, as
applicable:
(1) For airplanes previously maintained in accordance with this
AD, the first corrosion task in each airplane area to be performed
by the new operator must be accomplished in accordance with the
previous operator's schedule or with the new operator's schedule,
whichever would result in the earlier accomplishment date for that
task. After each corrosion task has been performed once, each
subsequent task must be performed in accordance with the new
operator's schedule.
(2) For airplanes that have not been previously maintained in
accordance with this AD, the first corrosion task for each airplane
area to be performed by the new operator must be accomplished prior
to further flight or in accordance with a schedule approved by the
FAA.
(j) Reports of Level 2 and Level 3 corrosion must be submitted
at least quarterly to Lockheed Martin Aircraft & Logistics Centers
in accordance with Section 5 of Revision D of the Document.
Note 14:
Reporting of Level 2 and Level 3 corrosion found as a result of
any opportunity inspections is highly desirable.
Alternative Methods of Compliance
(k) In accordance with 14 CFR 39.19, the Manager, Atlanta ACO,
FAA, is authorized to approve alternative methods of compliance for
this AD.
Incorporation by Reference
(l) Except as otherwise specified in this AD, the actions must
be done in accordance with Lockheed Document Number LR 31889,
``Corrosion Prevention and Control Program, TriStar L-1011,'' dated
March 15, 1991, including ``Errata Sheet, LR 31889, Corrosion
Prevention and Control Program, TriStar L-1011,'' issued September
29, 1992; and Lockheed Document Number LR 31889, ``Corrosion
Prevention and Control Program, TriStar L-1011,'' including
Appendices A, B, C, and D, Revision D, dated August 15, 1999; as
applicable. Revision D contains the following effective pages (the
revision level of this document is listed only on the title pages of
this document):
----------------------------------------------------------------------------------------------------------------
Page no. Revision level shown on page Date shown on page
----------------------------------------------------------------------------------------------------------------
Active Page Record, Page 0.5............. D................................ August 15, 1999.
----------------------------------------------------------------------------------------------------------------
(1) The incorporation by reference of Lockheed Document Number
LR 31889, ``Corrosion Prevention and Control Program, TriStar L-
1011,'' including Appendices A, B, C, and D, Revision D, dated
August 15, 1999; is approved by the Director of the Federal
Register, in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.
(2) The incorporation by reference of Lockheed Document Number
LR 31889, ``Corrosion Prevention and Control Program, TriStar L-
1011,'' dated March 15, 1991, including ``Errata Sheet, LR 31889,
Corrosion Prevention and Control Program, TriStar L-1011,'' issued
September 29, 1992; was approved previously by the Director of the
Federal Register as of December 17, 1993 (58 FR 60775, November 18,
1993).
(3) Copies may be obtained from Lockheed Martin Aircraft &
Logistics Center, 120 Orion Street, Greenville, South Carolina
29605. Copies may be inspected at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the
FAA, Atlanta Aircraft Certification Office, One Crown Center, 1895
Phoenix Boulevard, suite 450, Atlanta, Georgia; or 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:
http://www.archives.gov/ federal--register/ code--of--federal--
regulations/ ibr--locations.html.
Effective Date
(m) This amendment becomes effective on June 17, 2004.
Issued in Renton, Washington, on April 27, 2004.
Kevin M. Mullin,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 04-10245 Filed 5-12-04; 8:45 am]
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