Airworthiness Directives; Boeing Model 747-400 and 747-400D Series Airplanes, 22424-22426 [E9-10935]
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Federal Register / Vol. 74, No. 91 / Wednesday, May 13, 2009 / Rules and Regulations
Office. The AMOC approval letter must
specifically reference this AD.
(2) Airworthy Product: For any
requirement in this AD to obtain corrective
actions from a manufacturer or other source,
use these actions if they are FAA-approved.
Corrective actions are considered FAAapproved if they are approved by the State
of Design Authority (or their delegated
agent). You are required to assure the product
is airworthy before it is returned to service.
(3) Reporting Requirements: For any
reporting requirement in this AD, under the
provisions of the Paperwork Reduction Act,
the Office of Management and Budget (OMB)
has approved the information collection
requirements and has assigned OMB Control
Number 2120–0056.
Related Information
(h) Refer to Mandatory Continuing
Airworthiness Information (MCAI) EASA
Airworthiness Directive 2008–0216, dated
December 9, 2008; and Airbus Service
Bulletin A380–57–8014, dated November 21,
2008; for related information.
Material Incorporated by Reference
(i) You must use Airbus Service Bulletin
A380–57–8014, including Appendix 01,
dated November 21, 2008, 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 Airbus SAS–EANA
(Airworthiness Office); 1 Rond Point Maurice
Bellonte, 31707 Blagnac Cedex, France;
telephone +33 562 110 253; Fax +33 562 110
307; e-mail account.airworthA380@airbus.com; Internet https://
www.airbus.com.
(3) You may review copies of the service
information at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton,
Washington. For information on the
availability of this material at the FAA, call
425–227–1221 or 425–227–1152.
(4) You may also review copies of the
service information that is incorporated by
reference at the National Archives and
Records Administration (NARA). For
information on the availability of this
material at NARA, call 202–741–6030, or go
to: https://www.archives.gov/federal_register/
code_of_federal_regulations/
ibr_locations.html.
Issued in Renton, Washington, on May 1,
2009.
Stephen P. Boyd,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. E9–10934 Filed 5–12–09; 8:45 am]
BILLING CODE 4910–13–P
VerDate Nov<24>2008
17:32 May 12, 2009
Jkt 217001
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2009–0135; Directorate
Identifier 2008-NM–170-AD; Amendment 39–
15901; AD 2009–10–06]
RIN 2120–AA64
Airworthiness Directives; Boeing
Model 747–400 and 747–400D Series
Airplanes
AGENCY: Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
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: Ivan
Li, Aerospace Engineer, Airframe
Branch, ANM–120S, FAA, Seattle
Aircraft Certification Office, 1601 Lind
Avenue, SW., Renton, Washington
98057–3356; telephone (425) 917–6437;
fax (425) 917–6590.
SUMMARY: We are adopting a new
airworthiness directive (AD) for certain
Boeing Model 747–400 and 747–400D
series airplanes. This AD requires
repetitive inspections to detect cracks in
the floor panel attachment fastener
holes of the Section 41 upper deck floor
beam upper chords, and related
investigative and corrective actions if
necessary. This AD results from reports
of cracks found in the Section 41 upper
deck floor beam upper chords. We are
issuing this AD to detect and correct
cracks in these chords, which could
become large and cause the floor beams
to become severed and result in rapid
decompression or reduced
controllability of the airplane.
DATES: This AD is effective June 17,
2009.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in the AD
as of June 17, 2009.
ADDRESSES: For service information
identified in this AD, contact Boeing
Commercial Airplanes, Attention: Data
& Services Management, P.O. Box 3707,
MC 2H–65, Seattle, Washington 98124–
2207; telephone 206–544–5000,
extension 1; fax 206–766–5680; e-mail
me.boecom@boeing.com; Internet
https://www.myboeingfleet.com.
SUPPLEMENTARY INFORMATION:
Examining the AD Docket
We estimate that this AD affects 53
airplanes of U.S. registry. The following
table provides the estimated costs for
U.S. operators to comply with this AD.
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
PO 00000
Frm 00004
Fmt 4700
Sfmt 4700
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 747–400 and 747–
400D series airplanes. That NPRM was
published in the Federal Register on
February 18, 2009 (74 FR 7573). That
NPRM proposed to require repetitive
inspections to detect cracks in the floor
panel attachment fastener holes of the
Section 41 upper deck floor beam upper
chords, and related investigative and
corrective actions if necessary.
Comments
We gave the public the opportunity to
participate in developing this AD. We
considered the comment received.
Boeing supports the NPRM.
Conclusion
We reviewed the relevant data,
considered the comment received, and
determined that air safety and the
public interest require adopting the AD
as proposed.
Costs of Compliance
E:\FR\FM\13MYR1.SGM
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Federal Register / Vol. 74, No. 91 / Wednesday, May 13, 2009 / Rules and Regulations
22425
TABLE—ESTIMATED COSTS
Action
Work hours
Inspection .........
Average
labor rate
per hour
48 or 50 ............
$80
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
Accordingly, under the authority
delegated to me by the Administrator,
■
VerDate Nov<24>2008
17:32 May 12, 2009
Jkt 217001
Parts
None ........
Cost per product
$3,840 or $4,000 per inspection cycle.
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:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new AD:
■
2009–10–06 Boeing: Amendment 39–15901.
Docket No. FAA–2009–0135; Directorate
Identifier 2008-NM–170-AD.
Effective Date
(a) This airworthiness directive (AD) is
effective June 17, 2009.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Boeing Model 747–
400 and 747–400D series airplanes,
certificated in any category; as identified in
Boeing Alert Service Bulletin 747–53A2688,
dated August 21, 2008.
Subject
(d) Air Transport Association (ATA) of
America Code 53: Fuselage.
Unsafe Condition
(e) This AD results from reports of cracks
found in the Section 41 upper deck floor
beam upper chords. We are issuing this AD
to detect and correct cracks in these chords,
which could become large and cause the
floor beams to become severed and result in
rapid decompression or reduced
controllability of the airplane.
Compliance
(f) Comply with this AD within the
compliance times specified, unless already
done.
Inspections and Corrective Actions
(g) Except as required by paragraphs (h)
and (i) of this AD: At the applicable times in
paragraph 1.E., ‘‘Compliance,’’ of Boeing
Alert Service Bulletin 747–53A2688, dated
August 21, 2008 (‘‘the service bulletin’’), do
an inspection (open-hole or surface high
frequency eddy current) to detect cracks in
the floor panel attachment fastener holes of
the Section 41 upper deck floor beam upper
chords, and do applicable related
investigative and corrective actions, by
accomplishing all the applicable actions
specified in the Accomplishment
PO 00000
Frm 00005
Number of U.S.registered
airplanes
Fmt 4700
Sfmt 4700
53
Fleet cost
Up to $212,000 per inspection cycle.
Instructions of the service bulletin. Repeat
the inspections thereafter at the applicable
times specified in paragraph 1.E.,
‘‘Compliance,’’ of the service bulletin.
(h) If any crack is found during any
inspection required by paragraph (g) of this
AD, and Boeing Alert Service Bulletin 747–
53A2688, dated August 21, 2008, specifies to
contact Boeing for appropriate action: Before
further flight, repair the crack using a method
approved in accordance with the procedures
specified in paragraph (j) of this AD.
(i) Where Boeing Alert Service Bulletin
747–53A2688, dated August 21, 2008,
specifies a compliance time after the date on
the service bulletin, this AD requires
compliance within the specified compliance
time after the effective date of this AD.
Alternative Methods of Compliance
(AMOCs)
(j)(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. Send information to ATTN: Ivan
Li, Aerospace Engineer, Airframe Branch,
ANM–120S, FAA, Seattle Aircraft
Certification Office, 1601 Lind Avenue, SW.,
Renton, Washington 98057–3356; telephone
(425) 917–6437; fax (425) 917–6590.
(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 principal maintenance inspector
(PMI) or principal avionics inspector (PAI),
as appropriate, or lacking a principal
inspector, your local Flight Standards District
Office. The AMOC approval letter must
specifically reference this AD.
(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 must meet the
certification basis of the airplane, and the
approval must specifically refer to this AD.
Material Incorporated by Reference
(k) You must use Boeing Alert Service
Bulletin 747–53A2688, dated August 21,
2008, 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, Attention: Data & Services
E:\FR\FM\13MYR1.SGM
13MYR1
22426
Federal Register / Vol. 74, No. 91 / Wednesday, May 13, 2009 / Rules and Regulations
Management, P.O. Box 3707, MC 2H–65,
Seattle, Washington 98124–2207; telephone
206–544–5000, extension 1; fax 206–766–
5680; e-mail me.boecom@boeing.com;
Internet https://www.myboeingfleet.com.
(3) You may review copies of the service
information at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton,
Washington. For information on the
availability of this material at the FAA, call
425–227–1221 or 425–227–1152.
(4) You may also review copies of the
service information that is incorporated by
reference at the National Archives and
Records Administration (NARA). For
information on the availability of this
material at NARA, call 202–741–6030, or go
to: https://www.archives.gov/federal_register/
code_of_federal_regulations/
ibr_locations.html.
Federal Aviation Administration
DATES: This AD becomes effective June
17, 2009.
ADDRESSES: You can get the service
information identified in this AD from
Pratt & Whitney, 400 Main Street, East
Hartford, CT 06108.
The Docket Operations office is
located at Docket Management Facility,
U.S. Department of Transportation, 1200
New Jersey Avenue SE., West Building
Ground Floor, Room W12–140,
Washington, DC 20590–0001.
FOR FURTHER INFORMATION CONTACT:
Mark Riley, Aerospace Engineer, Engine
Certification Office, FAA, Engine and
Propeller Directorate, 12 New England
Executive Park, Burlington, MA 01803;
e-mail: mark.riley@faa.gov; telephone
(781) 238–7758, fax (781) 238–7199.
SUPPLEMENTARY INFORMATION: The FAA
proposed to amend 14 CFR part 39 with
a proposed AD. The proposed AD
applies to PW models PW2037,
PW2037(M), and PW2040 turbofan
engines. We published the proposed AD
in the Federal Register on November 14,
2008 (73 FR 67427). That action
proposed to require inspecting all HPT
2nd stage hubs at the next HPT overhaul
after the effective date of the AD.
14 CFR Part 39
Examining the AD Docket
Issued in Renton, Washington, on May 1,
2009.
Stephen P. Boyd,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. E9–10935 Filed 5–12–09; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
[Docket No. FAA–2008–1131; Directorate
Identifier 2008–NE–37–AD; Amendment 39–
15903; AD 2009–10–08]
RIN 2120–AA64
Airworthiness Directives; Pratt &
Whitney Models PW2037, PW2037(M),
and PW2040 Turbofan Engines
AGENCY: Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
SUMMARY: The FAA is adopting a new
airworthiness directive (AD) for Pratt &
Whitney models PW2037, PW2037(M),
and PW2040 turbofan engines with
high-pressure turbine (HPT) 2nd stage
hubs that have previously been exposed
to Pratt & Whitney cleaning procedure
SPOP 10 or SPOP 9 or equivalent
procedure. This AD requires a onetime
optical comparator inspection (OCI) of
the blade retention slots of the affected
HPT 2nd stage hubs at the next HPT
overhaul after the effective date of the
AD. This AD results from an
uncontained release of HPT 2nd stage
blades and blade retention lugs. We are
issuing this AD to remove
nonconforming HPT 2nd stage hubs,
which could result in an uncontained
release of turbine blades and blade
retention lugs, and damage to the
airplane.
VerDate Nov<24>2008
17:32 May 12, 2009
Jkt 217001
You may examine the AD docket on
the Internet at https://
www.regulations.gov; or in person at the
Docket Operations office 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 street address for
the Docket Operations office (telephone
(800) 647–5527) is provided in the
ADDRESSES section. Comments will be
available in the AD docket shortly after
receipt.
Comments
We provided the public the
opportunity to participate in the
development of this AD. We have
considered the comments received.
Recommend Referring to the Inspection
as ‘‘Special Dimensional Inspection’’
Pratt & Whitney recommends that the
inspection in the proposed AD be
referred to as a ‘‘Special Dimensional
Inspection’’ per Pratt & Whitney Alert
Service Bulletin (ASB) PW2000 72–734,
which is approved by the FAA. The
proposed AD currently specifies an
Optical Comparator Inspection (OCI).
Use of the term ‘‘Special Dimensional
Inspection’’ instead of OCI will provide
better alignment with the inspection
procedures that Pratt & Whitney is
presently developing and for which it
PO 00000
Frm 00006
Fmt 4700
Sfmt 4700
will seek FAA approval, to use as an
alternative to OCI.
We do not agree. The inspection is an
OCI. Therefore, identifying the type of
inspection the AD requires by its name
is proper. We did not change the AD.
Request To Revise the Estimated Cost
Pratt & Whitney and two air carriers
request that we revise the estimated cost
to perform an OCI. Pratt & Whitney
states that the cost is higher than
previously anticipated and we should
add about $4,000 to the cost of each disk
overhaul. Delta Air Lines states that the
total cost is actually closer to $8,000 and
it should include shipping ($1,000),
vendor charges ($5,900), and should
take into account additional inventory
required ($180,000 per hub) due to outof-service time required to support the
off-site inspection.
We partially agree. We agree that the
cost estimate in the proposed AD is not
accurate. We do not agree that it should
consider shipping charges or additional
inventory requirements unique to each
operator. We changed the cost to
perform the OCI to $4,000 for each HPT
stage 2 hub as quoted by Pratt &
Whitney and updated the total to
$3,048,000.
Request for Clarification of the
Inspection Being a Onetime Inspection
Pratt & Whitney and two air carriers
request clarification in the AD to state
that the inspection is a onetime
inspection. Also, Delta Air Lines
comments that repetitive inspections
should be required unless the cause of
the hub out-of-tolerance condition is
addressed. They also stated that the
cause of the hub out-of-tolerance
condition is not known and repetitive
inspections are therefore required.
We partially agree. We agree that we
need to clarify that the OCI is a onetime
inspection requirement. We changed the
AD to clarify that the OCI is a onetime
inspection requirement. We do not agree
that the AD should require repetitive
inspections. If we determine at a later
date that repetitive inspections are
required, we may issue an AD to require
them.
Proposal To Eliminate the Fluorescent
Penetrant Inspection
Pratt & Whitney and United Airlines
propose that we eliminate the
fluorescent penetrant inspection (FPI)
requirement for the HPT 2nd stage hub.
FPI of the HPT 2nd stage hub is
redundant, since it is already mandated
per FAA AD 2005–18–03.
We agree. We changed the AD to only
require a onetime OCI of the HPT 2nd
stage hub after the fluorescent penetrant
E:\FR\FM\13MYR1.SGM
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]]>Agencies
[Federal Register Volume 74, Number 91 (Wednesday, May 13, 2009)]
[Rules and Regulations]
[Pages 22424-22426]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E9-10935]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2009-0135; Directorate Identifier 2008-NM-170-AD;
Amendment 39-15901; AD 2009-10-06]
RIN 2120-AA64
Airworthiness Directives; Boeing Model 747-400 and 747-400D
Series Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Boeing Model 747-400 and 747-400D series airplanes. This AD requires
repetitive inspections to detect cracks in the floor panel attachment
fastener holes of the Section 41 upper deck floor beam upper chords,
and related investigative and corrective actions if necessary. This AD
results from reports of cracks found in the Section 41 upper deck floor
beam upper chords. We are issuing this AD to detect and correct cracks
in these chords, which could become large and cause the floor beams to
become severed and result in rapid decompression or reduced
controllability of the airplane.
DATES: This AD is effective June 17, 2009.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in the AD as of June 17,
2009.
ADDRESSES: For service information identified in this AD, contact
Boeing Commercial Airplanes, Attention: Data & Services Management,
P.O. Box 3707, MC 2H-65, Seattle, Washington 98124-2207; telephone 206-
544-5000, extension 1; fax 206-766-5680; e-mail me.boecom@boeing.com;
Internet https://www.myboeingfleet.com.
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: Ivan Li, Aerospace Engineer, Airframe
Branch, ANM-120S, FAA, Seattle Aircraft Certification Office, 1601 Lind
Avenue, SW., Renton, Washington 98057-3356; telephone (425) 917-6437;
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 747-400 and 747-400D series airplanes. That NPRM
was published in the Federal Register on February 18, 2009 (74 FR
7573). That NPRM proposed to require repetitive inspections to detect
cracks in the floor panel attachment fastener holes of the Section 41
upper deck floor beam upper chords, and related investigative and
corrective actions if necessary.
Comments
We gave the public the opportunity to participate in developing
this AD. We considered the comment received. Boeing supports the NPRM.
Conclusion
We reviewed the relevant data, considered the comment received, and
determined that air safety and the public interest require adopting the
AD as proposed.
Costs of Compliance
We estimate that this AD affects 53 airplanes of U.S. registry. The
following table provides the estimated costs for U.S. operators to
comply with this AD.
[[Page 22425]]
Table--Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
Average Number of U.S.-
Action Work hours labor rate Parts Cost per product registered Fleet cost
per hour airplanes
--------------------------------------------------------------------------------------------------------------------------------------------------------
Inspection................ 48 or 50.................. $80 None.............. $3,840 or $4,000 per 53 Up to $212,000 per
inspection cycle. inspection cycle.
--------------------------------------------------------------------------------------------------------------------------------------------------------
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:
2009-10-06 Boeing: Amendment 39-15901. Docket No. FAA-2009-0135;
Directorate Identifier 2008-NM-170-AD.
Effective Date
(a) This airworthiness directive (AD) is effective June 17,
2009.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Boeing Model 747-400 and 747-400D series
airplanes, certificated in any category; as identified in Boeing
Alert Service Bulletin 747-53A2688, dated August 21, 2008.
Subject
(d) Air Transport Association (ATA) of America Code 53:
Fuselage.
Unsafe Condition
(e) This AD results from reports of cracks found in the Section
41 upper deck floor beam upper chords. We are issuing this AD to
detect and correct cracks in these chords, which could become large
and cause the floor beams to become severed and result in rapid
decompression or reduced controllability of the airplane.
Compliance
(f) Comply with this AD within the compliance times specified,
unless already done.
Inspections and Corrective Actions
(g) Except as required by paragraphs (h) and (i) of this AD: At
the applicable times in paragraph 1.E., ``Compliance,'' of Boeing
Alert Service Bulletin 747-53A2688, dated August 21, 2008 (``the
service bulletin''), do an inspection (open-hole or surface high
frequency eddy current) to detect cracks in the floor panel
attachment fastener holes of the Section 41 upper deck floor beam
upper chords, and do applicable related investigative and corrective
actions, by accomplishing all the applicable actions specified in
the Accomplishment Instructions of the service bulletin. Repeat the
inspections thereafter at the applicable times specified in
paragraph 1.E., ``Compliance,'' of the service bulletin.
(h) If any crack is found during any inspection required by
paragraph (g) of this AD, and Boeing Alert Service Bulletin 747-
53A2688, dated August 21, 2008, specifies to contact Boeing for
appropriate action: Before further flight, repair the crack using a
method approved in accordance with the procedures specified in
paragraph (j) of this AD.
(i) Where Boeing Alert Service Bulletin 747-53A2688, dated
August 21, 2008, specifies a compliance time after the date on the
service bulletin, this AD requires compliance within the specified
compliance time after the effective date of this AD.
Alternative Methods of Compliance (AMOCs)
(j)(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. Send information to
ATTN: Ivan Li, Aerospace Engineer, Airframe Branch, ANM-120S, FAA,
Seattle Aircraft Certification Office, 1601 Lind Avenue, SW.,
Renton, Washington 98057-3356; telephone (425) 917-6437; fax (425)
917-6590.
(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 principal maintenance inspector (PMI) or
principal avionics inspector (PAI), as appropriate, or lacking a
principal inspector, your local Flight Standards District Office.
The AMOC approval letter must specifically reference this AD.
(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 must meet the certification basis
of the airplane, and the approval must specifically refer to this
AD.
Material Incorporated by Reference
(k) You must use Boeing Alert Service Bulletin 747-53A2688,
dated August 21, 2008, 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, Attention: Data & Services
[[Page 22426]]
Management, P.O. Box 3707, MC 2H-65, Seattle, Washington 98124-2207;
telephone 206-544-5000, extension 1; fax 206-766-5680; e-mail
me.boecom@boeing.com; Internet https://www.myboeingfleet.com.
(3) You may review copies of the service information at the FAA,
Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton,
Washington. For information on the availability of this material at
the FAA, call 425-227-1221 or 425-227-1152.
(4) You may also review copies of the service information that
is incorporated by reference at the National Archives and Records
Administration (NARA). For information on the availability of this
material at NARA, call 202-741-6030, or go to: https://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
Issued in Renton, Washington, on May 1, 2009.
Stephen P. Boyd,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E9-10935 Filed 5-12-09; 8:45 am]
BILLING CODE 4910-13-P
