Airworthiness Directives; Boeing Model 747-100, 747-100B, 747-200B, 747-200C, 747-200F, and 747SR Series Airplanes, 63590-63592 [E9-28552]
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63590
Federal Register / Vol. 74, No. 232 / Friday, December 4, 2009 / Rules and Regulations
TABLE 2—REFERENCED SERVICE INFORMATION—Continued
Canadair Challenger
Temporary Revision—
Dated—
To the Airworthiness Limitations section of—
5–236 ..............................
March 22, 2007 ............
5–2–40 ............................
July 28, 2008 ...............
Section 5–10–30 of Chapter 5 of the Canadair Challenger Time Limits/Maintenance
Checks, PSP 601A–5.
Section 5–10–40 of Chapter 5 of the Canadair Challenger CL–604 Time Limits/Maintenance Checks.
Material Incorporated by Reference
(i) You must use the applicable service
information contained in Table 3 of this AD
to do the actions required by this AD, unless
the AD specifies otherwise.
TABLE 3—MATERIAL INCORPORATED BY REFERENCE
Canadair Challenger
Temporary Revision—
Dated—
To the Airworthiness Limitations section of—
5–236 ..............................
July 25, 2008 ...............
5–236 ..............................
March 22, 2007 ............
5–2–40 ............................
July 28, 2008 ...............
Section 5–10–30 of Chapter 5 of the Canadair Challenger Time Limits/Maintenance
Checks, PSP 601–5.
Section 5–10–30 of Chapter 5 of the Canadair Challenger Time Limits/Maintenance
Checks, PSP 601A–5.
Section 5–10–40 of Chapter 5 of the Canadair Challenger CL–604 Time Limits/Maintenance Checks.
(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
ˆ
this AD, contact Bombardier, Inc., 400 Cote´
Vertu Road, West, Dorval, Quebec H4S 1Y9,
Canada; telephone 514–855–5000; fax 514–
855–7401; e-mail
thd.crj@aero.bombardier.com; Internet https://
www.bombardier.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
November 19, 2009.
Stephen P. Boyd,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. E9–28554 Filed 12–3–09; 8:45 am]
jlentini on DSKJ8SOYB1PROD with RULES
BILLING CODE 4910–13–P
VerDate Nov<24>2008
17:09 Dec 03, 2009
Jkt 220001
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2009–0553; Directorate
Identifier 2008–NM–199–AD; Amendment
39–16111; AD 2009–24–17]
RIN 2120–AA64
Airworthiness Directives; Boeing
Model 747–100, 747–100B, 747–200B,
747–200C, 747–200F, and 747SR Series
Airplanes
SUMMARY: We are issuing a new
airworthiness directive (AD) for certain
Boeing Model 747–100, 747–100B, 747–
200B, 747–200C, 747–200F, and 747SR
series airplanes. This AD requires a onetime general visual inspection for
missing fasteners in certain stringer-tostringer clip joints at the station (STA)
760 through STA 940 frames, and
related investigative and corrective
actions if necessary. This AD results
from a report of broken and cracked
frame shear ties, cracks on the frame
doubler and frame web, and missing
fasteners in the stringer (S) –10L
stringer-to-stringer clip joint at the STA
820 frame. We are issuing this AD to
detect and correct missing fasteners in
the stringer-to-stringer clip joints, which
could result in shear tie and skin cracks
and rapid in-flight decompression of the
airplane.
Frm 00060
Fmt 4700
Sfmt 4700
ADDRESSES: For service information
identified in this AD, contact Boeing
Commercial Airplanes, P.O. Box 3707,
Seattle, Washington 98124–2207;
telephone 206–544–9990; fax 206–766–
5682; e-mail DDCS@boeing.com;
Internet https://
www.myboeingfleet.com.
Examining the AD Docket
AGENCY: Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
PO 00000
DATES: This AD is effective January 8,
2010.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in the AD
as of January 8, 2010.
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: Nick
Kusz, Aerospace Engineer, Airframe
Branch, ANM–120S, FAA, Seattle
Aircraft Certification Office, 1601 Lind
Avenue, SW., Renton, Washington
98057–3356; telephone (425) 917–6449;
fax (425) 917–6590.
SUPPLEMENTARY INFORMATION:
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Federal Register / Vol. 74, No. 232 / Friday, December 4, 2009 / Rules and Regulations
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 Model 747–100, 747–100B, 747–
200B, 747–200C, 747–200F, and 747SR
series airplanes. That NPRM was
published in the Federal Register on
June 23, 2009 (74 FR 29630). That
NPRM proposed to require a one-time
general visual inspection for missing
63591
Conclusion
fasteners in certain stringer-to-stringer
clip joints at the station (STA) 760
through STA 940 frames, and related
investigative and corrective actions if
necessary.
We reviewed the relevant data,
considered the comments received, and
determined that air safety and the
public interest require adopting the AD
as proposed.
Comments
We gave the public the opportunity to
participate in developing this AD. We
considered the comment received.
Boeing concurs with the contents of the
NPRM.
Costs of Compliance
We estimate that this AD affects 84
airplanes of U.S. registry. The following
table provides the estimated costs for
U.S. operators to comply with this AD.
ESTIMATED COSTS
Action
Average labor rate
per hour
Work hours
Inspection .....
4
$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.
$0
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:
■
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
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
■
VerDate Nov<24>2008
17:09 Dec 03, 2009
Jkt 220001
[Amended]
2. The FAA amends § 39.13 by adding
the following new AD:
2009–24–17 Boeing: Amendment 39–16111.
Docket No. FAA–2009–0553; Directorate
Identifier 2008–NM–199–AD.
Effective Date
(a) This airworthiness directive (AD) is
effective January 8, 2010.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Boeing Model 747–
100, 747–100B, 747–200B, 747–200C, 747–
200F, and 747SR series airplanes, certificated
in any category; as identified in Boeing Alert
Service Bulletin 747–53A2751, dated October
9, 2008.
PO 00000
Frm 00061
Fmt 4700
Sfmt 4700
Number of U.S.-registered airplanes
$320 per inspection
cycle.
under the criteria of the Regulatory
Flexibility Act.
You can find our regulatory
evaluation and the estimated costs of
compliance in the AD Docket.
Regulatory Findings
jlentini on DSKJ8SOYB1PROD with RULES
Cost per
product
Parts
84
Fleet cost
$26,880 per
inspection
cycle.
Subject
(d) Air Transport Association (ATA) of
America Code 53: Fuselage.
Unsafe Condition
(e) This AD results from a report of broken
and cracked frame shear ties, cracks on the
frame doubler and frame web, and missing
fasteners in the stringer (S)–10L stringer-tostringer clip joint at the station (STA) 820
frame. We are proposing this AD to detect
and correct missing fasteners at the stringerto-stringer clip joints, which could result in
shear tie and skin cracks and rapid in-flight
decompression of the airplane.
Compliance
(f) Comply with this AD within the
compliance times specified, unless already
done.
Inspection for Missing Fasteners
(g) Within 3,000 flight cycles after the
effective date of this AD: Do a one-time
general visual inspection for missing
fasteners in the left and right side S–10, S–
10A, and S–11 stringer-to-stringer clip joints
at the STA 760 through 940 frames, in
accordance with the Accomplishment
Instructions of Boeing Alert Service Bulletin
747–53A2751, dated October 9, 2008. If any
fasteners are missing, before further flight, do
detailed and surface high frequency eddy
current inspections to detect cracking of the
adjacent frame and skin structure in
accordance with the Accomplishment
Instructions of the service bulletin. Install all
missing fasteners before further flight.
(h) If any crack is found during the
inspection required by paragraph (g) of this
AD: Before further flight, repair any cracked
shear ties, frame web, and/or skin in
accordance with Boeing Alert Service
Bulletin 747–53A2751, dated October 9,
2008.
(i) If any repair is done in accordance with
paragraph (h) of this AD, before 20,000 total
flight cycles or within 3,000 flight cycles
from the repair installation, whichever
occurs later: Do a detailed inspection of the
repair(s) and the adjacent structure within 10
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Federal Register / Vol. 74, No. 232 / Friday, December 4, 2009 / Rules and Regulations
inches of the repair(s) for cracking. Repeat
the inspection thereafter at intervals not to
exceed 3,000 flight cycles. If any crack is
found during this inspection, before further
flight, repair using a method approved in
accordance with the procedures specified in
paragraph (j) of this AD.
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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: Nick
Kusz, Aerospace Engineer, Airframe Branch,
ANM–120S, FAA, Seattle Aircraft
Certification Office, 1601 Lind Avenue, SW.,
Renton, Washington 98057–3356; telephone
(425) 917–6449; fax (425) 917–6590. Or,
e-mail information to 9-ANM-Seattle-ACOAMOC-Requests@faa.gov.
(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, in the FAA Flight Standards
District Office (FSDO), or lacking a principal
inspector, your local FSDO. 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 747–53A2751, dated October 9,
2008, 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; telephone 206–
544–9990; fax 206–766–5682; e-mail
DDCS@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/
VerDate Nov<24>2008
17:09 Dec 03, 2009
Jkt 220001
code_of_federal_regulations/
ibr_locations.html.
Issued in Renton, Washington, on
November 19, 2009.
Stephen P. Boyd,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. E9–28552 Filed 12–3–09; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2009–0436; Directorate
Identifier 2009–NM–005–AD; Amendment
39–16114; AD 2009–24–20]
RIN 2120–AA64
Airworthiness Directives; Bombardier
Model CL–600–2C10 (Regional Jet
Series 700 & 701) Airplanes and CL–
600–2D24 (Regional Jet Series 900)
Airplanes
AGENCY: Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
We are adopting a new
airworthiness directive (AD) for the
products listed above. This AD results
from mandatory continuing
airworthiness information (MCAI)
originated by an aviation authority of
another country to identify and correct
an unsafe condition on an aviation
product. The MCAI describes the unsafe
condition as:
SUMMARY:
Frost, snow, slush or ice on the wing
leading edges and upper wing surfaces may
change the stall speeds, stall characteristics
and the protection provided by the stall
protection system, which could result in
reduced controllability of the aircraft.
*
*
*
*
*
We are issuing this AD to require
actions to correct the unsafe condition
on these products.
DATES: This AD becomes effective
January 8, 2010.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of January 8, 2010.
ADDRESSES: You may examine the AD
docket on the Internet at https://
www.regulations.gov or in person at the
U.S. Department of Transportation,
Docket Operations, M–30, West
Building Ground Floor, Room W12–140,
1200 New Jersey Avenue, SE.,
Washington, DC.
FOR FURTHER INFORMATION CONTACT:
Bruce Valentine, Aerospace Engineer,
PO 00000
Frm 00062
Fmt 4700
Sfmt 4700
Avionics and Flight Test Branch,
ANE–172, FAA, New York Aircraft
Certification Office, 1600 Stewart
Avenue, Suite 410, Westbury, New York
11590; telephone (516) 228–7328; fax
(516) 794–5531.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would
apply to the specified products. That
NPRM was published in the Federal
Register on May 12, 2009 (74 FR 22123).
That NPRM proposed to correct an
unsafe condition for the specified
products. The MCAI states:
Frost, snow, slush or ice on the wing
leading edges and upper wing surfaces may
change the stall speeds, stall characteristics
and the protection provided by the stall
protection system, which could result in
reduced controllability of the aircraft.
Transport Canada has * * * approved
temporary revisions to the Aircraft Flight
Manuals (AFM), which emphasize the cold
weather operational requirements to ensure
that the wing leading edges and upper wing
surfaces are free from frost, snow, slush or
ice.
The corrective action is revising the
AFMs to introduce procedures for cold
weather operations. You may obtain
further information by examining the
MCAI in the AD docket.
Comments
We gave the public the opportunity to
participate in developing this AD. We
considered the comments received.
Request To Include Updated
Temporary Revisions (TRs)
Two commenters, Comair and
Michael Donahue, request that we revise
paragraph (f) of the NPRM to require
inclusion of the updated TRs in the
applicable AFM. The commenters both
state that the TRs identified in the
NPRM have been updated.
Comair states that Bombardier
(Canadair) TR RJ 900/48–3, dated
August 19, 2008, to the Bombardier
(Canadair) Regional Jet Series 900 AFM,
CSP C–012, was superseded by
Bombardier (Canadair) TR RJ 900/75,
dated November 20, 2008; which was
superseded by Bombardier (Canadair)
TR RJ 900/75–1, dated November 20,
2008; which was superseded by
Bombardier (Canadair) TR RJ 900/75–2,
dated April 22, 2009. Comair states that
Bombardier (Canadair) TR RJ 900/75–2
needs to be inserted in the Bombardier
(Canadair) Regional Jet Series 900 AFM,
CSP C–012.
Comair also states that Bombardier
(Canadair) TR RJ 700/87–3, dated
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]]>Agencies
[Federal Register Volume 74, Number 232 (Friday, December 4, 2009)]
[Rules and Regulations]
[Pages 63590-63592]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E9-28552]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2009-0553; Directorate Identifier 2008-NM-199-AD;
Amendment 39-16111; AD 2009-24-17]
RIN 2120-AA64
Airworthiness Directives; Boeing Model 747-100, 747-100B, 747-
200B, 747-200C, 747-200F, and 747SR Series Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are issuing a new airworthiness directive (AD) for certain
Boeing Model 747-100, 747-100B, 747-200B, 747-200C, 747-200F, and 747SR
series airplanes. This AD requires a one-time general visual inspection
for missing fasteners in certain stringer-to-stringer clip joints at
the station (STA) 760 through STA 940 frames, and related investigative
and corrective actions if necessary. This AD results from a report of
broken and cracked frame shear ties, cracks on the frame doubler and
frame web, and missing fasteners in the stringer (S) -10L stringer-to-
stringer clip joint at the STA 820 frame. We are issuing this AD to
detect and correct missing fasteners in the stringer-to-stringer clip
joints, which could result in shear tie and skin cracks and rapid in-
flight decompression of the airplane.
DATES: This AD is effective January 8, 2010.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in the AD as of January 8,
2010.
ADDRESSES: For service information identified in this AD, contact
Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124-
2207; telephone 206-544-9990; fax 206-766-5682; e-mail DDCS@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: Nick Kusz, Aerospace Engineer,
Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office,
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425)
917-6449; fax (425) 917-6590.
SUPPLEMENTARY INFORMATION:
[[Page 63591]]
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 Model 747-100, 747-100B, 747-200B, 747-200C, 747-200F, and
747SR series airplanes. That NPRM was published in the Federal Register
on June 23, 2009 (74 FR 29630). That NPRM proposed to require a one-
time general visual inspection for missing fasteners in certain
stringer-to-stringer clip joints at the station (STA) 760 through STA
940 frames, 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 concurs with the
contents of the NPRM.
Conclusion
We reviewed the relevant data, considered the comments 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 84 airplanes of U.S. registry. The
following table provides the estimated costs for U.S. operators to
comply with this AD.
Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
Average labor rate Number of U.S.-
Action Work hours per hour Parts Cost per product registered airplanes Fleet cost
--------------------------------------------------------------------------------------------------------------------------------------------------------
Inspection................... 4 $80 $0 $320 per 84 $26,880 per
inspection inspection
cycle. 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:
2009-24-17 Boeing: Amendment 39-16111. Docket No. FAA-2009-0553;
Directorate Identifier 2008-NM-199-AD.
Effective Date
(a) This airworthiness directive (AD) is effective January 8,
2010.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Boeing Model 747-100, 747-100B, 747-200B,
747-200C, 747-200F, and 747SR series airplanes, certificated in any
category; as identified in Boeing Alert Service Bulletin 747-
53A2751, dated October 9, 2008.
Subject
(d) Air Transport Association (ATA) of America Code 53:
Fuselage.
Unsafe Condition
(e) This AD results from a report of broken and cracked frame
shear ties, cracks on the frame doubler and frame web, and missing
fasteners in the stringer (S)-10L stringer-to-stringer clip joint at
the station (STA) 820 frame. We are proposing this AD to detect and
correct missing fasteners at the stringer-to-stringer clip joints,
which could result in shear tie and skin cracks and rapid in-flight
decompression of the airplane.
Compliance
(f) Comply with this AD within the compliance times specified,
unless already done.
Inspection for Missing Fasteners
(g) Within 3,000 flight cycles after the effective date of this
AD: Do a one-time general visual inspection for missing fasteners in
the left and right side S-10, S-10A, and S-11 stringer-to-stringer
clip joints at the STA 760 through 940 frames, in accordance with
the Accomplishment Instructions of Boeing Alert Service Bulletin
747-53A2751, dated October 9, 2008. If any fasteners are missing,
before further flight, do detailed and surface high frequency eddy
current inspections to detect cracking of the adjacent frame and
skin structure in accordance with the Accomplishment Instructions of
the service bulletin. Install all missing fasteners before further
flight.
(h) If any crack is found during the inspection required by
paragraph (g) of this AD: Before further flight, repair any cracked
shear ties, frame web, and/or skin in accordance with Boeing Alert
Service Bulletin 747-53A2751, dated October 9, 2008.
(i) If any repair is done in accordance with paragraph (h) of
this AD, before 20,000 total flight cycles or within 3,000 flight
cycles from the repair installation, whichever occurs later: Do a
detailed inspection of the repair(s) and the adjacent structure
within 10
[[Page 63592]]
inches of the repair(s) for cracking. Repeat the inspection
thereafter at intervals not to exceed 3,000 flight cycles. If any
crack is found during this inspection, before further flight, repair
using a method approved in accordance with the procedures specified
in paragraph (j) 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: Nick Kusz, Aerospace Engineer, Airframe Branch, ANM-120S, FAA,
Seattle Aircraft Certification Office, 1601 Lind Avenue, SW.,
Renton, Washington 98057-3356; telephone (425) 917-6449; fax (425)
917-6590. Or, e-mail information to 9-ANM-Seattle-ACO-AMOC-Requests@faa.gov.
(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, in the FAA
Flight Standards District Office (FSDO), or lacking a principal
inspector, your local FSDO. 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 747-53A2751,
dated October 9, 2008, 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; telephone 206-544-9990; fax 206-766-5682; e-mail
DDCS@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 November 19, 2009.
Stephen P. Boyd,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E9-28552 Filed 12-3-09; 8:45 am]
BILLING CODE 4910-13-P
