Airworthiness Directives; Boeing Model 747-400F and -400 Series Airplanes, 21240-21242 [E8-8327]
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21240
Federal Register / Vol. 73, No. 77 / Monday, April 21, 2008 / Rules and Regulations
Initial and Repetitive Inspections
(h) Except as provided by paragraph (i) of
this AD: At the applicable time specified in
Table 2 of this AD, do the applicable initial
inspections to detect cracks of all SSIs, in
accordance with Revision E. Repeat the
applicable inspections thereafter at the
intervals specified in Section 3.0,
‘‘Implementation’’ of Revision E.
TABLE 2.—COMPLIANCE TIME FOR INITIAL INSPECTIONS
For airplanes with SSIs—
Compliance time
(1) Affected by the cargo configuration.
(2) Not affected by the cargo configuration.
Before the accumulation of 46,000 total flight cycles, or within 4,000 flight cycles measured from 12
months after the effective date of this AD, whichever occurs later.
Before the accumulation of 66,000 total flight cycles, or within 4,000 flight cycles measured from 12
months after the effective date of this AD, whichever occurs later.
(i) For any SSI that has been repaired or
altered before the effective date of this AD
such that the repair or design change affects
your ability to accomplish the actions
required by paragraph (h) of this AD: You
must request FAA approval of an alternative
method of compliance (AMOC) in
accordance with section 39.17 of the Federal
Aviation Regulations (14 CFR 39.17), at the
initial compliance time specified in
paragraph (h) of the AD; or do the actions
specified in paragraphs (i)(1) and (i)(2) of this
AD, at the times specified in those
paragraphs, as an approved means of
compliance with the requirements of
paragraph (h) of this AD.
(1) At the initial compliance time specified
in paragraph (h) of the AD, identify each
repair or design change to that SSI.
(2) Within 12 months after the
identification of a repair or design change
required by paragraph (i)(1) of this AD, assess
the damage tolerance characteristics of each
SSI affected by each repair or design change
to determine the effectiveness of the
applicable SSID inspection for that SSI and
if not effective, incorporate a revision into
the FAA-approved maintenance inspection
program to include a damage-tolerance based
alternative inspection program for each
affected SSI. Thereafter, inspect the affected
structure in accordance with the alternative
inspection program. The inspection method
and compliance times (i.e., threshold and
repeat intervals) of the alternative inspection
program must be approved in accordance
with the procedures specified in paragraph
(l) of this AD.
rfrederick on PROD1PC67 with RULES
Repair
(j) If any cracked structure is found during
any inspection required by paragraph (h) or
(i) of this AD, before further flight, repair the
cracked structure using a method approved
in accordance with the procedures specified
in paragraph (l) of this AD.
Inspection Program for Transferred
Airplanes
(k) Before any airplane that is subject to
this AD and that has exceeded the applicable
compliance times specified in paragraph (h)
of this AD can be added to an air carrier’s
operations specifications, a program for the
accomplishment of the inspections required
by this AD must be established in accordance
with paragraph (k)(1) or (k)(2) of this AD, as
applicable.
(1) For airplanes that have been inspected
in accordance with this AD: The inspection
of each SSI must be done by the new operator
in accordance with the previous operator’s
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15:19 Apr 18, 2008
Jkt 214001
schedule and inspection method, or the new
operator’s schedule and inspection method,
at whichever time would result in the earlier
accomplishment for that SSI inspection. The
compliance time for accomplishment of this
inspection must be measured from the last
inspection accomplished by the previous
operator. After each inspection has been
done once, each subsequent inspection must
be performed in accordance with the new
operator’s schedule and inspection method.
(2) For airplanes that have not been
inspected in accordance with this AD: The
inspection of each SSI required by this AD
must be done either before adding the
airplane to the air carrier’s operations
specification, or in accordance with a
schedule and an inspection method approved
by the Manager, Seattle Aircraft Certification
Office (ACO), FAA. After each inspection has
been done once, each subsequent inspection
must be done in accordance with the new
operator’s schedule.
Alternative Methods of Compliance
(AMOCs)
(l)(1) The Manager, Seattle ACO has the
authority to approve AMOCs for this AD, if
requested in accordance with the procedures
found in 14 CFR 39.19.
(2) To request a different method of
compliance or a different compliance time
for this AD, follow the procedures in 14 CFR
39.19. Before using any approved AMOC on
any airplane to which the AMOC applies,
notify your appropriate principal inspector
(PI) in the FAA Flight Standards District
Office (FSDO), or lacking a PI, your local
FSDO.
(3) An AMOC that provides an acceptable
level of safety may be used for any repair
required by this AD, if it is approved by an
Authorized Representative for the Boeing
Commercial Airplanes Delegation Option
Authorization Organization who has been
authorized by the Manager, Seattle ACO, to
make those findings. For a repair method to
be approved, the repair approval must
specifically refer to this AD.
Material Incorporated by Reference
(m) You must use Boeing Document D6–
37089, ‘‘Supplemental Structural Inspection
Document for Model 737–100/200/200C
Airplanes,’’ Revision E, dated May 2007, to
do the actions required by this AD, unless the
AD specifies otherwise.
(1) The document contains the following
errors:
(i) Pages 2.0.3 and 2.0.4, Revision D, of
Section 2.0 and pages F–14.5, Revision D,
and F–14.6, Revision Blank, of Section 8.2
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exist; but are not specified in the List of
Effective Pages.
(ii) Pages 7.0.43 through 7.0.46 inclusive of
Section 7.0 and pages W.34.1 and W.34.2 of
Section 11.1, as specified in the List of
Effective Pages, do not exist.
(iii) The List of Effective Pages specifies
incorrect revision levels for certain pages; the
revision levels specified on each page are
correct.
(iv) None of the pages are dated. The issue
date for each revision is specified in the
Revision Highlights section.
(2) The Director of the Federal Register
approved the incorporation by reference of
this service information under 5 U.S.C.
552(a) and 1 CFR part 51.
(3) For service information identified in
this AD, contact Boeing Commercial
Airplanes, P.O. Box 3707, Seattle,
Washington 98124–2207.
(4) You may review copies of the service
information incorporated by reference at the
FAA, Transport Airplane Directorate, 1601
Lind Avenue, SW., Renton, Washington; 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: https://
www.archives.gov/federal_register/
code_of_federal_regulations/
ibr_locations.html.
Issued in Renton, Washington, on April 8,
2008.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E8–8320 Filed 4–18–08; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2006–26726; Directorate
Identifier 2006–NM–205–AD; Amendment
39–15479; AD 2008–08–25]
RIN 2120–AA64
Airworthiness Directives; Boeing
Model 747–400F and –400 Series
Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
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21APR1
Federal Register / Vol. 73, No. 77 / Monday, April 21, 2008 / Rules and Regulations
SUMMARY: We are adopting a new
airworthiness directive (AD) for certain
Boeing Model 747–400F and –400 series
airplanes. This AD requires installing
drains and drain tubes to eliminate
water accumulation in the dripshield
above the M826 Card File in the main
equipment center. This AD results from
a report that water from the dripshield
entered the card file and damaged a
circuit card, causing the AFT CARGO
FIRE MSG message to be illuminated
and resulting in an air turn back. We are
issuing this AD to prevent water from
entering the card file and damaging a
circuit card. Failure of one or more of
the 15 fuel system circuit cards in the
card file could cause loss of fuel
management, which could cause
unavailability of fuel. Failure of one or
more of the 35 fire detection circuit
cards could cause a false message of a
fire, or no message of a fire when there
is a fire.
DATES: This AD is effective May 27,
2008.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of May 27, 2008.
ADDRESSES: For service information
identified in this AD, contact Boeing
Commercial Airplanes, P.O. Box 3707,
Seattle, Washington 98124–2207.
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 (telephone 800–647–5527)
is the 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:
Marcia Smith, Aerospace Engineer,
Cabin Safety and Environmental
Systems Branch, ANM–150S, FAA,
Seattle Aircraft Certification Office,
1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone
(425) 917–6484; fax (425) 917–6590.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to include an airworthiness
directive (AD) that would apply to
certain Boeing Model 747–400F series
airplanes. That NPRM was published in
the Federal Register on January 8, 2007
(72 FR 664). That NPRM proposed to
require installing drains and drain tubes
to eliminate water accumulation in the
dripshield above the M826 Card File in
the main equipment center.
Comments
We gave the public the opportunity to
participate in developing this AD. We
considered the comment received from
the one commenter.
Request To Revise the Applicability
Language and To Add New Service
Information
Boeing requests that all occurrences of
the phrase ‘‘certain 747–400F series
airplanes’’ be changed to ‘‘certain 747–
400F and certain 747–400BCF series
airplanes.’’ Boeing states that this
change will clarify the affected models
for operators, and that the wording of
the proposed applicability statement,
‘‘747–400F series,’’ does not include the
Model 747–400BCF (Boeing converted
freighter) airplanes. Boeing states that it
is revising the existing service bulletin
referred to in the NPRM to include some
early Model 747–400BCF airplanes.
We partially agree. We have
determined that these airplanes are also
subject to the identified unsafe
condition addressed by this AD.
Therefore, we agree to revise the
applicability language of this AD to
include these airplanes; however, we do
not agree to use the language suggested
by Boeing. Section XIII., ‘‘747–400SF
Major Design Change,’’ of the type
certificate data sheet for Boeing Model
747 airplanes states that the Model 747–
400SF (special freighter), optionally
known as Model 747–400BCF, remains
as Model 747–400 series airplanes for
documentation purposes and with
regard to the applicability of ADs.
Therefore, we have revised the
applicability language in the preamble
of this final rule to specify ‘‘certain
Boeing Model 747–400F and 747–400
21241
series airplanes.’’ However, none of the
airplanes added to the applicability
statement of this AD are on the U.S.
Register, therefore additional notice and
opportunity for public comment before
issuing this AD are unnecessary. We
have also revised the applicability
statement of this final rule to refer to
Boeing Alert Service Bulletin 747–
25A3526, dated November 13, 2007
(described below), for Model 747–400
series airplanes.
Since we issued the NPRM, Boeing
has issued Alert Service Bulletin 747–
25A3526 to address the identified
unsafe condition on certain Model 747–
400 series airplanes. This service
bulletin includes procedures that are
essentially the same as those described
in Boeing Alert Service Bulletin 747–
25A3370, Revision 1, dated April 27,
2006 (referred to in the NPRM as the
appropriate source of service
information for doing the proposed
actions for Model 747–400F airplanes),
except that it also includes moving the
P402 panel. As we stated previously, we
have added Boeing Alert Service
Bulletin 747–25A3526 to this final rule.
Conclusion
We reviewed the relevant data,
considered the comment received, and
determined that air safety and the
public interest require adopting the AD
with the changes described previously.
We also determined that these changes
will not increase the economic burden
on any operator or increase the scope of
the AD.
Change to Costs of Compliance Section
of the NPRM
We have revised this final rule to
update the number of airplanes
(representing the 747–400 series
airplanes) in the worldwide fleet. None
of the airplanes added to the
applicability statement of this AD are on
the U.S. Register, so the figures in the
estimated costs table remain unchanged.
Costs of Compliance
There are about 130 airplanes of the
affected design in the worldwide fleet.
The following table provides the
estimated costs for U.S. operators to
comply with this AD.
rfrederick on PROD1PC67 with RULES
ESTIMATED COSTS
Action
Work hours
Average labor
rate per hour
Parts
Cost per
airplane
Number of
U.S.-registered
airplanes
Fleet cost
Installation ................................................
8
$80
$822
$1,462
21
$30,702
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15:19 Apr 18, 2008
Jkt 214001
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21242
Federal Register / Vol. 73, No. 77 / Monday, April 21, 2008 / Rules and Regulations
Authority for This Rulemaking
§ 39.13
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.
I
Regulatory Findings
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.
You can find our regulatory
evaluation and the estimated costs of
compliance in the AD Docket.
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:
rfrederick on PROD1PC67 with RULES
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.
VerDate Aug<31>2005
15:19 Apr 18, 2008
Jkt 214001
[Amended]
2. The FAA amends § 39.13 by adding
the following new AD:
2008–08–25 Boeing: Amendment 39–15479.
Docket No. FAA–2006–26726;
Directorate Identifier 2006–NM–205–AD.
Effective Date
(a) This airworthiness directive (AD) is
effective May 27, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Boeing Model 747–
400F airplanes as identified in Boeing Alert
Service Bulletin 747–25A3370, Revision 1,
dated April 27, 2006; and Model 747–400
series airplanes as identified in Boeing Alert
Service Bulletin 747–25A3526, dated
November 13, 2007; certificated in any
category.
Unsafe Condition
(d) This AD results from a report that water
from the dripshield entered the card file and
damaged a circuit card, causing the AFT
CARGO FIRE MSG message to be illuminated
and resulting in an air turn back. We are
issuing this AD to prevent water from
entering the card file and damaging a circuit
card. Failure of one or more of the 15 fuel
system circuit cards in the card file could
cause loss of fuel management, which could
cause unavailability of fuel. Failure of one or
more of the 35 fire detection circuit cards
could cause a false message of a fire, or no
message of a fire when there is a fire.
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.
Installation
(f) Within 24 months after the effective
date of this AD, install two drains and drain
tubes in the dripshield above the M826 Card
File over the nose wheel left side in the main
equipment center at station 400, in
accordance with the Accomplishment
Instructions of Boeing Alert Service Bulletin
747–25A3370, Revision 1, dated April 27,
2006 (for Model 747–400F series airplanes);
or Boeing Alert Service Bulletin 747–
25A3526, dated November 13, 2007 (for
Model 747–400 series airplanes).
Installation According to Previous Issue of
Service Bulletin
(g) Installing the drains and drain tubes is
also acceptable for compliance with the
requirements of paragraph (f) of this AD if
done before the effective date of this AD in
accordance with Boeing Alert Service
Bulletin 747–25A3370, dated September 8,
2005.
Alternative Methods of Compliance
(AMOCs)
(h)(1) The Manager, Seattle Aircraft
Certification Office, FAA, has the authority to
approve AMOCs for this AD, if requested in
accordance with the procedures found in 14
CFR 39.19.
PO 00000
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Fmt 4700
Sfmt 4700
(2) Before using any AMOC approved in
accordance with § 39.19 on any airplane to
which the AMOC applies, notify the
appropriate principal inspector in the FAA
Flight Standards Certificate Holding District
Office.
Material Incorporated by Reference
(i) You must use Boeing Alert Service
Bulletin 747–25A3370, Revision 1, dated
April 27, 2006; or Boeing Alert Service
Bulletin 747–25A3526, dated November 13,
2007; as applicable; to do the actions
required by this AD, unless the AD specifies
otherwise.
(1) The Director of the Federal Register
approved the incorporation by reference of
this service information under 5 U.S.C.
552(a) and 1 CFR part 51.
(2) For service information identified in
this AD, contact Boeing Commercial
Airplanes, P.O. Box 3707, Seattle,
Washington 98124–2207.
(3) You may review copies of the service
information incorporated by reference at the
FAA, Transport Airplane Directorate, 1601
Lind Avenue, SW., Renton, Washington; 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: https://
www.archives.gov/federal_register/
code_of_federal_regulations/
ibr_locations.html.
Issued in Renton, Washington, on April 7,
2008.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E8–8327 Filed 4–18–08; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2007–0049; Directorate
Identifier 2007–NM–168–AD; Amendment
39–15478; AD 2008–08–24]
RIN 2120–AA64
Airworthiness Directives; Boeing
Model 737–600, –700, –700C, –800, and
–900 Series Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
SUMMARY: We are adopting a new
airworthiness directive (AD) for certain
Boeing Model 737–600, –700, –700C,
–800, and –900 series airplanes. This
AD requires replacing the drain tube
assemblies and support clamps on the
aft fairing of the engine struts. This AD
results from reports of failure of the
drain tube assembly and clamp on the
aft fairings of an engine strut. We are
issuing this AD to prevent failure of the
E:\FR\FM\21APR1.SGM
21APR1
]]>Agencies
[Federal Register Volume 73, Number 77 (Monday, April 21, 2008)]
[Rules and Regulations]
[Pages 21240-21242]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-8327]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2006-26726; Directorate Identifier 2006-NM-205-AD;
Amendment 39-15479; AD 2008-08-25]
RIN 2120-AA64
Airworthiness Directives; Boeing Model 747-400F and -400 Series
Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
[[Page 21241]]
SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Boeing Model 747-400F and -400 series airplanes. This AD requires
installing drains and drain tubes to eliminate water accumulation in
the dripshield above the M826 Card File in the main equipment center.
This AD results from a report that water from the dripshield entered
the card file and damaged a circuit card, causing the AFT CARGO FIRE
MSG message to be illuminated and resulting in an air turn back. We are
issuing this AD to prevent water from entering the card file and
damaging a circuit card. Failure of one or more of the 15 fuel system
circuit cards in the card file could cause loss of fuel management,
which could cause unavailability of fuel. Failure of one or more of the
35 fire detection circuit cards could cause a false message of a fire,
or no message of a fire when there is a fire.
DATES: This AD is effective May 27, 2008.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of May 27, 2008.
ADDRESSES: For service information identified in this AD, contact
Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124-
2207.
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 (telephone 800-647-5527) is the 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: Marcia Smith, Aerospace Engineer,
Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle
Aircraft Certification Office, 1601 Lind Avenue, SW., Renton,
Washington 98057-3356; telephone (425) 917-6484; fax (425) 917-6590.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to include an airworthiness directive (AD) that would apply to
certain Boeing Model 747-400F series airplanes. That NPRM was published
in the Federal Register on January 8, 2007 (72 FR 664). That NPRM
proposed to require installing drains and drain tubes to eliminate
water accumulation in the dripshield above the M826 Card File in the
main equipment center.
Comments
We gave the public the opportunity to participate in developing
this AD. We considered the comment received from the one commenter.
Request To Revise the Applicability Language and To Add New Service
Information
Boeing requests that all occurrences of the phrase ``certain 747-
400F series airplanes'' be changed to ``certain 747-400F and certain
747-400BCF series airplanes.'' Boeing states that this change will
clarify the affected models for operators, and that the wording of the
proposed applicability statement, ``747-400F series,'' does not include
the Model 747-400BCF (Boeing converted freighter) airplanes. Boeing
states that it is revising the existing service bulletin referred to in
the NPRM to include some early Model 747-400BCF airplanes.
We partially agree. We have determined that these airplanes are
also subject to the identified unsafe condition addressed by this AD.
Therefore, we agree to revise the applicability language of this AD to
include these airplanes; however, we do not agree to use the language
suggested by Boeing. Section XIII., ``747-400SF Major Design Change,''
of the type certificate data sheet for Boeing Model 747 airplanes
states that the Model 747-400SF (special freighter), optionally known
as Model 747-400BCF, remains as Model 747-400 series airplanes for
documentation purposes and with regard to the applicability of ADs.
Therefore, we have revised the applicability language in the preamble
of this final rule to specify ``certain Boeing Model 747-400F and 747-
400 series airplanes.'' However, none of the airplanes added to the
applicability statement of this AD are on the U.S. Register, therefore
additional notice and opportunity for public comment before issuing
this AD are unnecessary. We have also revised the applicability
statement of this final rule to refer to Boeing Alert Service Bulletin
747-25A3526, dated November 13, 2007 (described below), for Model 747-
400 series airplanes.
Since we issued the NPRM, Boeing has issued Alert Service Bulletin
747-25A3526 to address the identified unsafe condition on certain Model
747-400 series airplanes. This service bulletin includes procedures
that are essentially the same as those described in Boeing Alert
Service Bulletin 747-25A3370, Revision 1, dated April 27, 2006
(referred to in the NPRM as the appropriate source of service
information for doing the proposed actions for Model 747-400F
airplanes), except that it also includes moving the P402 panel. As we
stated previously, we have added Boeing Alert Service Bulletin 747-
25A3526 to this final rule.
Conclusion
We reviewed the relevant data, considered the comment received, and
determined that air safety and the public interest require adopting the
AD with the changes described previously. We also determined that these
changes will not increase the economic burden on any operator or
increase the scope of the AD.
Change to Costs of Compliance Section of the NPRM
We have revised this final rule to update the number of airplanes
(representing the 747-400 series airplanes) in the worldwide fleet.
None of the airplanes added to the applicability statement of this AD
are on the U.S. Register, so the figures in the estimated costs table
remain unchanged.
Costs of Compliance
There are about 130 airplanes of the affected design in the
worldwide fleet. The following table provides the estimated costs for
U.S. operators to comply with this AD.
Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
Number of U.S.-
Action Work hours Average labor Parts Cost per registered Fleet cost
rate per hour airplane airplanes
--------------------------------------------------------------------------------------------------------------------------------------------------------
Installation...................................... 8 $80 $822 $1,462 21 $30,702
--------------------------------------------------------------------------------------------------------------------------------------------------------
[[Page 21242]]
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
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.
You can find our regulatory evaluation and the estimated costs of
compliance in the AD Docket.
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 FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new AD:
2008-08-25 Boeing: Amendment 39-15479. Docket No. FAA-2006-26726;
Directorate Identifier 2006-NM-205-AD.
Effective Date
(a) This airworthiness directive (AD) is effective May 27, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Boeing Model 747-400F airplanes as
identified in Boeing Alert Service Bulletin 747-25A3370, Revision 1,
dated April 27, 2006; and Model 747-400 series airplanes as
identified in Boeing Alert Service Bulletin 747-25A3526, dated
November 13, 2007; certificated in any category.
Unsafe Condition
(d) This AD results from a report that water from the dripshield
entered the card file and damaged a circuit card, causing the AFT
CARGO FIRE MSG message to be illuminated and resulting in an air
turn back. We are issuing this AD to prevent water from entering the
card file and damaging a circuit card. Failure of one or more of the
15 fuel system circuit cards in the card file could cause loss of
fuel management, which could cause unavailability of fuel. Failure
of one or more of the 35 fire detection circuit cards could cause a
false message of a fire, or no message of a fire when there is a
fire.
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.
Installation
(f) Within 24 months after the effective date of this AD,
install two drains and drain tubes in the dripshield above the M826
Card File over the nose wheel left side in the main equipment center
at station 400, in accordance with the Accomplishment Instructions
of Boeing Alert Service Bulletin 747-25A3370, Revision 1, dated
April 27, 2006 (for Model 747-400F series airplanes); or Boeing
Alert Service Bulletin 747-25A3526, dated November 13, 2007 (for
Model 747-400 series airplanes).
Installation According to Previous Issue of Service Bulletin
(g) Installing the drains and drain tubes is also acceptable for
compliance with the requirements of paragraph (f) of this AD if done
before the effective date of this AD in accordance with Boeing Alert
Service Bulletin 747-25A3370, dated September 8, 2005.
Alternative Methods of Compliance (AMOCs)
(h)(1) The Manager, Seattle Aircraft Certification Office, FAA,
has the authority to approve AMOCs for this AD, if requested in
accordance with the procedures found in 14 CFR 39.19.
(2) Before using any AMOC approved in accordance with Sec.
39.19 on any airplane to which the AMOC applies, notify the
appropriate principal inspector in the FAA Flight Standards
Certificate Holding District Office.
Material Incorporated by Reference
(i) You must use Boeing Alert Service Bulletin 747-25A3370,
Revision 1, dated April 27, 2006; or Boeing Alert Service Bulletin
747-25A3526, dated November 13, 2007; as applicable; to do the
actions required by this AD, unless the AD specifies otherwise.
(1) The Director of the Federal Register approved the
incorporation by reference of this service information under 5
U.S.C. 552(a) and 1 CFR part 51.
(2) For service information identified in this AD, contact
Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington
98124-2207.
(3) You may review copies of the service information
incorporated by reference at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton, Washington; 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: https://www.archives.gov/federal_register/code_of_federal_
regulations/ibr_locations.html.
Issued in Renton, Washington, on April 7, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E8-8327 Filed 4-18-08; 8:45 am]
BILLING CODE 4910-13-P
