Airworthiness Directives; Boeing Model 737-600, -700, -700C, and -800 Series Airplanes, 10344-10346 [E7-3006]
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10344
Federal Register / Vol. 72, No. 45 / Thursday, March 8, 2007 / Rules and Regulations
Pembroke Pines, FL 33023; telephone: (954)
893–1400; fax: (954) 964–4141.
(3) You may review copies at the FAA,
Central Region, Office of the Regional
Counsel, 901 Locust, Room 506, Kansas City,
Missouri 64106; 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/
cfr/ibr-locations.html.
Issued in Kansas City, Missouri, on March
1, 2007.
Kim Smith,
Manager, Small Airplane Directorate, Aircraft
Certification Service.
[FR Doc. E7–3990 Filed 3–7–07; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2006–25000; Directorate
Identifier 2006–NM–096–AD; Amendment
39–14955; AD 2005–24–03 R1]
RIN 2120–AA64
Airworthiness Directives; Boeing
Model 737–600, –700, –700C, and –800
Series Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
The FAA is revising an
existing airworthiness directive (AD)
that applies to certain Boeing Model
737–600, –700, –700C, and –800 series
airplanes. That AD currently requires
inspecting/measuring the length of the
attachment fasteners between the
nacelle support fittings and the lower
wing skin panels, and related
investigative/corrective actions if
necessary. That AD resulted from a
report from the manufacturer that in
production, during the installation of
certain attachment fasteners for the
nacelle support fittings, only one
washer was installed instead of two.
This new AD corrects errors found in
the existing AD. We are issuing this AD
to prevent inadequate fastener clampup, which could result in cracking of
the fastener holes, cracking along the
lower wing skin panels, fuel leaking
from the wing fuel tanks onto the
engines, and possible fire.
DATES: The effective date of this AD is
April 12, 2007.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in the AD
as of April 12, 2007.
pwalker on PROD1PC71 with RULES
SUMMARY:
VerDate Aug<31>2005
18:23 Mar 07, 2007
Jkt 211001
On December 28, 2005 (70 FR 70713,
November 23, 2005), the Director of the
Federal Register approved the
incorporation by reference of Boeing
Service Bulletin 737–57–1275, Revision
1, dated August 18, 2005.
ADDRESSES: You may examine the AD
docket on the Internet at https://
dms.dot.gov or in person at the Docket
Management Facility, U.S. Department
of Transportation, 400 Seventh Street,
SW., Nassif Building, Room PL–401,
Washington, DC.
Contact Boeing Commercial
Airplanes, P.O. Box 3707, Seattle,
Washington 98124–2207, for service
information identified in this AD.
FOR FURTHER INFORMATION CONTACT:
Nancy Marsh, Aerospace Engineer,
Airframe Branch, ANM–120S, FAA,
Seattle Aircraft Certification Office,
1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone
(425) 917–6440; fax (425) 917–6590.
SUPPLEMENTARY INFORMATION:
Examining the Docket
You may examine the AD docket on
the Internet at https://dms.dot.gov or in
person at the Docket Management
Facility office between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays. The Docket
Management Facility office (telephone
(800) 647–5227) is located on the plaza
level of the Nassif Building at the street
address stated in the ADDRESSES section.
Discussion
The FAA proposed to amend part 39
of the Federal Aviation Regulations (14
CFR part 39) with an airworthiness
directive (AD) to revise AD 2005–24–03,
amendment 39–14383 (70 FR 70713,
November 23, 2005). The existing AD
applies to certain Boeing Model 737–
600, –700, –700C, and –800 series
airplanes. The proposed AD was
published in the Federal Register on
June 13, 2006 (71 FR 34026). That action
proposed to continue to require
inspecting/measuring the length of the
attachment fasteners between the
nacelle support fittings and the lower
wing skin panels, and related
investigative/corrective actions if
necessary. That action also proposed to
correct errors found in the existing AD.
Comment
We provided the public the
opportunity to participate in the
development of this AD. We have
considered the comment received.
Request To Cite Revised Service
Information
Boeing states that, subsequent to the
drafting of the subject AD, Boeing
PO 00000
Frm 00006
Fmt 4700
Sfmt 4700
Service Bulletin 737–57–1275, Revision
2, dated July 12, 2006, was issued.
Boeing notes that Revision 2 will aid
operators in completing the required
tasks by more effectively and efficiently
performing the inspections, while
reducing the likelihood of introducing
damage reported during completion of
the previous revisions. Boeing
recommends that Boeing Service
Bulletin 737–57–1275, Revision 3, dated
October 17, 2006, be incorporated into
the NPRM, which further improves ease
in completing the required tasks.
(Revision 3 was not yet issued when the
comment was submitted, but has since
been issued.)
We agree with this request. We have
reviewed Revision 3 of the referenced
service bulletin which specifies that no
more work is necessary on airplanes
changed as shown in the original issue,
dated September 4, 2003; Revision 1,
dated August 18, 2005; and Revision 2,
dated July 12, 2006. (We referred to
Revision 1 in the NPRM as the
appropriate source of service
information for accomplishing the
required actions.) We have determined
that Revision 3 shows changes of
operators in the effectivity and clarifies
the oversize limits for replacement
fasteners, but does not add any further
actions or increase the economic burden
on operators. Therefore, we have
changed the AD to add Boeing Service
Bulletin 737–57–1275, Revision 3, dated
October 17, 2006, as the appropriate
source of service information for
accomplishing the requirements in
paragraph (f) of this AD after the
effective date of this AD.
Conclusion
We have carefully reviewed the
available data, including the comment
received, and determined that air safety
and the public interest require adopting
the AD with the change described
previously. We have determined that
this change will neither increase the
economic burden on any operator nor
increase the scope of the AD.
Costs of Compliance
There are about 751 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. The requirements
that were previously required by AD
2005–24–03 are retained in this AD; this
AD adds no additional economic burden
on U.S. operators. The current costs are
repeated for the convenience of affected
operators, as follows:
Estimated Costs
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Federal Register / Vol. 72, No. 45 / Thursday, March 8, 2007 / Rules and Regulations
Action
Work
hours
Average
labor rate
per hour
Parts
Cost per
airplane
Number
of U.S.registered
airplanes
Fleet cost
Inspection/Measurement .........................
12
$65
Nominal ...................................................
$780
302
$235,560
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.
pwalker on PROD1PC71 with RULES
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 regulatory evaluation
of the estimated costs to comply with
this AD and placed it in the AD docket.
See the ADDRESSES section for a location
to examine the regulatory evaluation.
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,
I
VerDate Aug<31>2005
18:23 Mar 07, 2007
Jkt 211001
the FAA amends 14 CFR part 39 as
follows:
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
I
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The Federal Aviation
Administration (FAA) amends § 39.13
by removing amendment 39–14383 (70
FR 70713, November 23, 2005) and
adding the following new airworthiness
directive (AD):
I
2005–24–03 R1 Boeing: Amendment 39–
14955. Docket No. FAA–2006–25000;
Directorate Identifier 2006–NM–096–AD.
Effective Date
(a) The effective date of this AD is April
12, 2007.
Affected ADs
(b) This AD revises AD 2005–24–03.
Applicability
(c) This AD applies to Boeing Model 737–
600, –700, –700C, and –800 series airplanes;
line numbers 1 through 761 inclusive, except
for line numbers 596, 683, 742, 749, 750, 751,
754, 755, 759, and 760; certificated in any
category.
Unsafe Condition
(d) This AD results from a determination
that errors were inadvertently included in the
existing AD. We are issuing this AD to
prevent inadequate fastener clamp-up, which
could result in cracking of the fastener holes,
cracking along the lower wing skin panels,
fuel leaking from the wing fuel tanks onto the
engines, and possible 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.
Inspection/Measurement and Related
Investigative and Corrective Actions
(f) At the applicable time specified in
paragraph (f)(1) or (f)(2) of this AD: Inspect/
measure the length of certain attachment
fasteners between the lower wing skin panels
and the nacelle support fittings. Do the
inspection/measurement, and all applicable
related investigative and corrective actions,
in accordance with the Accomplishment
Instructions of Boeing Service Bulletin 737–
57–1275, Revision 1, dated August 18, 2005.
After the effective date of this AD only
Boeing Service Bulletin 737–57–1275,
PO 00000
Frm 00007
Fmt 4700
Sfmt 4700
Revision 3, dated October 17, 2006; shall be
used.
(1) For Model 737–700 series airplanes
modified by Supplemental Type Certificate
(STC) ST00830SE as of December 28, 2005
(the effective date of AD 2005–24–03):
Accomplish the actions at the later of the
times specified in paragraphs (f)(1)(i) and
(f)(1)(ii) of this AD.
(i) Prior to the accumulation of 25,000 total
flight hours or 25,000 total flight cycles,
whichever is first.
(ii) Within 12 months after December 28,
2005.
(2) For all other airplanes: Accomplish the
actions at the later of the times specified in
paragraphs (f)(2)(i) and (f)(2)(ii) of this AD.
(i) Prior to the accumulation of 30,000 total
flight hours or 30,000 total flight cycles,
whichever is first.
(ii) Within 12 months after December 28,
2005.
(g) If accomplishing a corrective action as
required by paragraph (f) of this AD, and the
service bulletin specifies to contact Boeing
for repair information: Before further flight,
do the repair using a method approved in
accordance with paragraph (i) of this AD.
Actions Accomplished According to
Previous Issue of Service Bulletin
(h) Actions accomplished before December
28, 2005, in accordance with Boeing Service
Bulletin 737–57–1275, dated September 4,
2003; are considered acceptable for
compliance with the corresponding actions
specified in this AD.
Alternative Methods of Compliance
(AMOCs)
(i)(1) The Manager, Seattle Aircraft
Certification Office (ACO), FAA, has the
authority to approve AMOCs for this AD, if
requested using the procedures found in 14
CFR 39.19.
(2) AMOCs approved previously in
accordance with AD 2005–24–03, are
approved as AMOCs for the corresponding
provisions of this AD.
(3) Before using any AMOC approved in
accordance with 14 CFR 39.19 on any
airplane to which the AMOC applies, notify
the appropriate principal inspector in the
FAA Flight Standards Certificate Holding
District Office.
(4) 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 must meet the
certification basis of the airplane, and the
approval must specifically refer to this AD.
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Federal Register / Vol. 72, No. 45 / Thursday, March 8, 2007 / Rules and Regulations
Material Incorporated by Reference
(j) You must use the service information
identified in Table 1 of this AD to perform
the actions that are required by this AD,
unless the AD specifies otherwise.
TABLE 1.—ALL MATERIAL
INCORPORATED BY REFERENCE
Boeing Service
Bulletin
Revision
level
737–57–1275 ..
1
737–57–1275 ..
3
Date
August 18,
2005.
October 17,
2006.
(1) The Director of the Federal Register
approved the incorporation by reference of
Boeing Service Bulletin 737–57–1275,
Revision 3, dated October 17, 2006; in
accordance with 5 U.S.C. 552(a) and 1 CFR
part 51.
(2) On December 28, 2005 (70 FR 70713,
November 23, 2005), the Director of the
Federal Register approved the incorporation
by reference of Boeing Service Bulletin 737–
57–1275, Revision 1, dated August 18, 2005.
(3) Contact Boeing Commercial Airplanes,
P.O. Box 3707, Seattle, Washington 98124–
2207, for a copy of this service information.
You may review copies 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/cfr/ibrlocations.html.
Issued in Renton, Washington, on February
12, 2007.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E7–3006 Filed 3–7–07; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2006–24709; Directorate
Identifier 2006–CE–28–AD; Amendment 39–
14980; AD 2007–05–19]
RIN 2120–AA64
Airworthiness Directives; Glasflugel
Models H 301 ‘‘Libelle,’’ H 301B
‘‘Libelle,’’ Standard ‘‘Libelle,’’ and
Standard Libelle-201B Sailplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
pwalker on PROD1PC71 with RULES
AGENCY:
SUMMARY: The FAA adopts a new
airworthiness directive (AD) for all
Glasflugel Models H 301 ‘‘Libelle,’’ H
301B ‘‘Libelle,’’ Standard ‘‘Libelle,’’ and
VerDate Aug<31>2005
18:23 Mar 07, 2007
Jkt 211001
Standard Libelle-201B sailplanes. This
AD requires you to replace the rudder
actuator arm (manufactured according
to drawing No. 301–45–10) with an
improved design rudder actuator arm
(manufactured following drawing No.
301–45–13). This AD results from
mandatory continuing airworthiness
information (MCAI) issued by the
airworthiness authority for Germany.
We are issuing this AD to detect and
correct damage to the rudder actuator
arm, which could result in failure of the
rudder actuator arm. This failure could
result in reduced or loss of rudder
control.
DATES: This AD becomes effective on
April 12, 2007.
As of April 12, 2007, the Director of
the Federal Register approved the
incorporation by reference of certain
publications listed in the regulation.
ADDRESSES: To get the service
information identified in this AD,
contact Glasflugel, Glasfaser-FlugzeugService GmbH, Hansjory Steifeneder,
Hofener Weg, 72582 Grabenstetten,
Federal Republic of Germany;
telephone: 011 49 7382 1032.
To view the AD docket, go to the
Docket Management Facility; U.S.
Department of Transportation, 400
Seventh Street, SW., Nassif Building,
Room PL–401, Washington, DC 20590–
001 or on the Internet at https://
dms.dot.gov. The docket number is
FAA–2006–24709; Directorate Identifier
2006–CE–28–AD.
FOR FURTHER INFORMATION CONTACT:
Gregory Davison, Glider Project Officer,
ACE–112, Small Airplane Directorate,
901 Locust, Room 301, Kansas City,
Missouri 64106; telephone: (816) 329–
4130; facsimile: (816) 329–4090.
SUPPLEMENTARY INFORMATION:
this AD. The following presents the
comment received on the proposal and
FAA’s response to the comment:
Comment Issue: Service Documents and
Parts Manufacturer Approval
Jack Buster of the Modification and
Replacement Parts Association
(MARPA) requests the following be
incorporated into the regulatory action:
1. Service documents deemed essential to
the accomplishment of this proposed action
be incorporated by reference and published
in the Docket Management System (DMS);
and
2. The issue of parts manufacturer approval
(PMA) be addressed in the proposed action
and that all Directorates within the FAA treat
the issue the same per Section 1, paragraph
(b)(10) of Executive Order 12866.
Discussion
On August 4, 2006, we issued a
proposal to amend part 39 of the Federal
Aviation Regulations (14 CFR part 39) to
include an AD that would apply to all
Glasflugel Models H 301 ‘‘Libelle,’’ H
301B ‘‘Libelle,’’ Standard ‘‘Libelle,’’ and
Standard Libelle-201B sailplanes. This
proposal was published in the Federal
Register as a notice of proposed
rulemaking (NPRM) on August 11, 2006
(71 FR 46128). The NPRM proposed to
require you to replace the rudder
actuator arm (manufactured according
to drawing No. 301–45–10) with an
improved design rudder actuator arm
(manufactured following drawing No.
301–45–13).
We agree that the service documents
are essential and should be incorporated
by reference. However, we do not
incorporate by reference any document
in a proposed AD action; instead we
incorporate by reference the document
in the final rule. Since we are issuing
the proposal as a final rule AD action,
the service information referenced in
this action will be incorporated by
reference.
We are currently reviewing issues
surrounding the posting of service
bulletins in the Department of
Transportation’s DMS as part of the AD
docket. Once we have thoroughly
examined all aspects of this issue and
have made a final determination, we
will consider whether our current
practice needs to be revised.
On the PMA issue, Mr. Buster’s
comments are timely in that the FAA is
currently reviewing this issue as it
applies to all products: Transport
airplanes, commuter airplanes, general
aviation airplanes, engines and
propellers, rotorcraft, and appliances.
The FAA acknowledges that there are
different ways of addressing this issue
to ensure that unsafe PMA parts are
identified and addressed. Once we have
thoroughly examined all aspects of this
issue including input from industry and
have made a final determination, we
will consider developing a standardized
approach and standardized language on
how to address PMA parts in
airworthiness directives.
We have determined that to delay this
AD action would be inappropriate since
an unsafe condition exists and that
replacement of certain parts must be
done to ensure continued safety.
Therefore, we have made no change to
the AD in this regard.
Comments
We provided the public the
opportunity to participate in developing
Conclusion
We have carefully reviewed the
available data and determined that air
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E:\FR\FM\08MRR1.SGM
08MRR1
]]>Agencies
[Federal Register Volume 72, Number 45 (Thursday, March 8, 2007)]
[Rules and Regulations]
[Pages 10344-10346]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-3006]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2006-25000; Directorate Identifier 2006-NM-096-AD;
Amendment 39-14955; AD 2005-24-03 R1]
RIN 2120-AA64
Airworthiness Directives; Boeing Model 737-600, -700, -700C, and
-800 Series Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is revising an existing airworthiness directive (AD)
that applies to certain Boeing Model 737-600, -700, -700C, and -800
series airplanes. That AD currently requires inspecting/measuring the
length of the attachment fasteners between the nacelle support fittings
and the lower wing skin panels, and related investigative/corrective
actions if necessary. That AD resulted from a report from the
manufacturer that in production, during the installation of certain
attachment fasteners for the nacelle support fittings, only one washer
was installed instead of two. This new AD corrects errors found in the
existing AD. We are issuing this AD to prevent inadequate fastener
clamp-up, which could result in cracking of the fastener holes,
cracking along the lower wing skin panels, fuel leaking from the wing
fuel tanks onto the engines, and possible fire.
DATES: The effective date of this AD is April 12, 2007.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in the AD as of April 12,
2007.
On December 28, 2005 (70 FR 70713, November 23, 2005), the Director
of the Federal Register approved the incorporation by reference of
Boeing Service Bulletin 737-57-1275, Revision 1, dated August 18, 2005.
ADDRESSES: You may examine the AD docket on the Internet at https://
dms.dot.gov or in person at the Docket Management Facility, U.S.
Department of Transportation, 400 Seventh Street, SW., Nassif Building,
Room PL-401, Washington, DC.
Contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle,
Washington 98124-2207, for service information identified in this AD.
FOR FURTHER INFORMATION CONTACT: Nancy Marsh, Aerospace Engineer,
Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office,
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425)
917-6440; fax (425) 917-6590.
SUPPLEMENTARY INFORMATION:
Examining the Docket
You may examine the AD docket on the Internet at https://dms.dot.gov
or in person at the Docket Management Facility office between 9 a.m.
and 5 p.m., Monday through Friday, except Federal holidays. The Docket
Management Facility office (telephone (800) 647-5227) is located on the
plaza level of the Nassif Building at the street address stated in the
ADDRESSES section.
Discussion
The FAA proposed to amend part 39 of the Federal Aviation
Regulations (14 CFR part 39) with an airworthiness directive (AD) to
revise AD 2005-24-03, amendment 39-14383 (70 FR 70713, November 23,
2005). The existing AD applies to certain Boeing Model 737-600, -700, -
700C, and -800 series airplanes. The proposed AD was published in the
Federal Register on June 13, 2006 (71 FR 34026). That action proposed
to continue to require inspecting/measuring the length of the
attachment fasteners between the nacelle support fittings and the lower
wing skin panels, and related investigative/corrective actions if
necessary. That action also proposed to correct errors found in the
existing AD.
Comment
We provided the public the opportunity to participate in the
development of this AD. We have considered the comment received.
Request To Cite Revised Service Information
Boeing states that, subsequent to the drafting of the subject AD,
Boeing Service Bulletin 737-57-1275, Revision 2, dated July 12, 2006,
was issued. Boeing notes that Revision 2 will aid operators in
completing the required tasks by more effectively and efficiently
performing the inspections, while reducing the likelihood of
introducing damage reported during completion of the previous
revisions. Boeing recommends that Boeing Service Bulletin 737-57-1275,
Revision 3, dated October 17, 2006, be incorporated into the NPRM,
which further improves ease in completing the required tasks. (Revision
3 was not yet issued when the comment was submitted, but has since been
issued.)
We agree with this request. We have reviewed Revision 3 of the
referenced service bulletin which specifies that no more work is
necessary on airplanes changed as shown in the original issue, dated
September 4, 2003; Revision 1, dated August 18, 2005; and Revision 2,
dated July 12, 2006. (We referred to Revision 1 in the NPRM as the
appropriate source of service information for accomplishing the
required actions.) We have determined that Revision 3 shows changes of
operators in the effectivity and clarifies the oversize limits for
replacement fasteners, but does not add any further actions or increase
the economic burden on operators. Therefore, we have changed the AD to
add Boeing Service Bulletin 737-57-1275, Revision 3, dated October 17,
2006, as the appropriate source of service information for
accomplishing the requirements in paragraph (f) of this AD after the
effective date of this AD.
Conclusion
We have carefully reviewed the available data, including the
comment received, and determined that air safety and the public
interest require adopting the AD with the change described previously.
We have determined that this change will neither increase the economic
burden on any operator nor increase the scope of the AD.
Costs of Compliance
There are about 751 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. The requirements that were
previously required by AD 2005-24-03 are retained in this AD; this AD
adds no additional economic burden on U.S. operators. The current costs
are repeated for the convenience of affected operators, as follows:
Estimated Costs
[[Page 10345]]
----------------------------------------------------------------------------------------------------------------
Number of
Average Cost per U.S.-
Action Work hours labor rate Parts airplane registered Fleet cost
per hour airplanes
----------------------------------------------------------------------------------------------------------------
Inspection/Measurement.......... 12 $65 Nominal........... $780 302 $235,560
----------------------------------------------------------------------------------------------------------------
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 regulatory evaluation of the estimated costs to
comply with this AD and placed it in the AD docket. See the ADDRESSES
section for a location to examine the regulatory evaluation.
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 Federal Aviation Administration (FAA) amends Sec. 39.13 by
removing amendment 39-14383 (70 FR 70713, November 23, 2005) and adding
the following new airworthiness directive (AD):
2005-24-03 R1 Boeing: Amendment 39-14955. Docket No. FAA-2006-25000;
Directorate Identifier 2006-NM-096-AD.
Effective Date
(a) The effective date of this AD is April 12, 2007.
Affected ADs
(b) This AD revises AD 2005-24-03.
Applicability
(c) This AD applies to Boeing Model 737-600, -700, -700C, and -
800 series airplanes; line numbers 1 through 761 inclusive, except
for line numbers 596, 683, 742, 749, 750, 751, 754, 755, 759, and
760; certificated in any category.
Unsafe Condition
(d) This AD results from a determination that errors were
inadvertently included in the existing AD. We are issuing this AD to
prevent inadequate fastener clamp-up, which could result in cracking
of the fastener holes, cracking along the lower wing skin panels,
fuel leaking from the wing fuel tanks onto the engines, and possible
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.
Inspection/Measurement and Related Investigative and Corrective Actions
(f) At the applicable time specified in paragraph (f)(1) or
(f)(2) of this AD: Inspect/measure the length of certain attachment
fasteners between the lower wing skin panels and the nacelle support
fittings. Do the inspection/measurement, and all applicable related
investigative and corrective actions, in accordance with the
Accomplishment Instructions of Boeing Service Bulletin 737-57-1275,
Revision 1, dated August 18, 2005. After the effective date of this
AD only Boeing Service Bulletin 737-57-1275, Revision 3, dated
October 17, 2006; shall be used.
(1) For Model 737-700 series airplanes modified by Supplemental
Type Certificate (STC) ST00830SE as of December 28, 2005 (the
effective date of AD 2005-24-03): Accomplish the actions at the
later of the times specified in paragraphs (f)(1)(i) and (f)(1)(ii)
of this AD.
(i) Prior to the accumulation of 25,000 total flight hours or
25,000 total flight cycles, whichever is first.
(ii) Within 12 months after December 28, 2005.
(2) For all other airplanes: Accomplish the actions at the later
of the times specified in paragraphs (f)(2)(i) and (f)(2)(ii) of
this AD.
(i) Prior to the accumulation of 30,000 total flight hours or
30,000 total flight cycles, whichever is first.
(ii) Within 12 months after December 28, 2005.
(g) If accomplishing a corrective action as required by
paragraph (f) of this AD, and the service bulletin specifies to
contact Boeing for repair information: Before further flight, do the
repair using a method approved in accordance with paragraph (i) of
this AD.
Actions Accomplished According to Previous Issue of Service Bulletin
(h) Actions accomplished before December 28, 2005, in accordance
with Boeing Service Bulletin 737-57-1275, dated September 4, 2003;
are considered acceptable for compliance with the corresponding
actions specified in this AD.
Alternative Methods of Compliance (AMOCs)
(i)(1) The Manager, Seattle Aircraft Certification Office (ACO),
FAA, has the authority to approve AMOCs for this AD, if requested
using the procedures found in 14 CFR 39.19.
(2) AMOCs approved previously in accordance with AD 2005-24-03,
are approved as AMOCs for the corresponding provisions of this AD.
(3) Before using any AMOC approved in accordance with 14 CFR
39.19 on any airplane to which the AMOC applies, notify the
appropriate principal inspector in the FAA Flight Standards
Certificate Holding District Office.
(4) 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 must meet the certification basis
of the airplane, and the approval must specifically refer to this
AD.
[[Page 10346]]
Material Incorporated by Reference
(j) You must use the service information identified in Table 1
of this AD to perform the actions that are required by this AD,
unless the AD specifies otherwise.
Table 1.--All Material Incorporated by Reference
------------------------------------------------------------------------
Revision
Boeing Service Bulletin level Date
------------------------------------------------------------------------
737-57-1275......................... 1 August 18, 2005.
737-57-1275......................... 3 October 17, 2006.
------------------------------------------------------------------------
(1) The Director of the Federal Register approved the
incorporation by reference of Boeing Service Bulletin 737-57-1275,
Revision 3, dated October 17, 2006; in accordance with 5 U.S.C.
552(a) and 1 CFR part 51.
(2) On December 28, 2005 (70 FR 70713, November 23, 2005), the
Director of the Federal Register approved the incorporation by
reference of Boeing Service Bulletin 737-57-1275, Revision 1, dated
August 18, 2005.
(3) Contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle,
Washington 98124-2207, for a copy of this service information. You
may review copies 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/cfr/ibr-locations.html.
Issued in Renton, Washington, on February 12, 2007.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E7-3006 Filed 3-7-07; 8:45 am]
BILLING CODE 4910-13-P
