Airworthiness Directives; Gulfstream Aerospace LP Model Galaxy Airplanes and Gulfstream 200 Airplanes, 70263-70265 [E8-26922]
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Federal Register / Vol. 73, No. 225 / Thursday, November 20, 2008 / Rules and Regulations
2007; and Fokker Service Bulletin SBF100–
27–091, dated August 31, 2007; for related
information.
Material Incorporated by Reference
(i) You must use Fokker Service Bulletin
SBF100–27–091, dated August 31, 2007, 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 Fokker Services B.V.,
Technical Services Dept., P.O. Box 231, 2150
AE Nieuw-Vennep, the Netherlands;
telephone +31 (0)252–627–350; fax +31
(0)252–627–211; e-mail
technicalservices.fokkerservices@stork.com;
Internet https://www.myfokkerfleet.com.
(3) 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 October
9, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E8–25755 Filed 11–19–08; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
Excessive wear of the blocks was discovered
on numerous aircraft, as well as several cases
of chafing between the loosely supported
tubes. In one case, hydraulic fluid was lost
due to fatigue failure of an inadequately
supported tube. Loss of hydraulic fluid
causes subsequent multiple failures of
hydraulically operated systems.
Multiple failures of hydraulically
operated systems (for the flight air brake
actuators, brake system, right thrust
reverser, etc.) could result in reduced
controllability of the airplane. We are
issuing this AD to require actions to
correct the unsafe condition on these
products.
This AD becomes effective
December 26, 2008.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of December 26, 2008.
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:
Mike Borfitz, Aerospace Engineer,
International Branch, ANM–116,
Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone
(425) 227–2677; fax (425) 227–1149.
SUPPLEMENTARY INFORMATION:
DATES:
Discussion
14 CFR Part 39
[Docket No. FAA–2008–0270; Directorate
Identifier 2007–NM–255–AD; Amendment
39–15628; AD 2008–16–10]
RIN 2120–AA64
Airworthiness Directives; Gulfstream
Aerospace LP Model Galaxy Airplanes
and Gulfstream 200 Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
rwilkins on PROD1PC63 with RULES
AGENCY:
SUMMARY: 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:
The 3 supporting blocks [installed on
hydraulic tubes] were made of Teflon, which
is unsuitable material for this application.
VerDate Aug<31>2005
18:21 Nov 19, 2008
Jkt 217001
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 March 13, 2008 (73 FR
13490). That NPRM proposed to correct
an unsafe condition for the specified
products. The MCAI states:
The 3 supporting blocks [installed on
hydraulic tubes] were made of Teflon, which
is unsuitable material for this application.
Excessive wear of the blocks was discovered
on numerous aircraft, as well as several cases
of chafing between the loosely supported
tubes. In one case, hydraulic fluid was lost
due to fatigue failure of an inadequately
supported tube. Loss of hydraulic fluid
causes subsequent multiple failures of
hydraulically operated systems.
Multiple failures of hydraulically
operated systems (for the flight air brake
actuators, brake system, right thrust
reverser, etc.) could result in reduced
controllability of the airplane. The
corrective actions include repetitive
visual inspections of the attaching
blocks for wear and of the hydraulic
PO 00000
Frm 00019
Fmt 4700
Sfmt 4700
70263
tubes to determine if any tube is loose
or damaged; an inspection of the entire
length of the tubes for chafing, damage,
and cracking; replacement of chafed,
damaged, or cracked tubes; and
replacement of blocks made of Teflon in
the right-hand aft fuselage equipment
bay with new blocks made of Nylon 6/
6. 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
received no comments on the NPRM or
on the determination of the cost to the
public.
Conclusion
We reviewed the available data and
determined that air safety and the
public interest require adopting the AD
as proposed.
Changes to Note 1 and Service
Information References
The statement specified in Note 1 of
the NPRM is informational only and is
not part of the requirements of this AD.
The actions specified in that statement
are required regardless of AD action. We
have removed Note 1 of the NPRM from
this AD and revised the numbering on
the subsequent Note in this AD.
We have revised paragraph (f)(1)(iii)
of this AD to clarify that the repair may
be done in accordance with Chapter 20–
10–12 of the Gulfstream G200
Maintenance Manual, Revision 15,
dated March 31, 2008.
Differences Between This AD and the
MCAI or Service Information
We have reviewed the MCAI and
related service information and, in
general, agree with their substance. But
we might have found it necessary to use
different words from those in the MCAI
to ensure the AD is clear for U.S.
operators and is enforceable. In making
these changes, we do not intend to differ
substantively from the information
provided in the MCAI and related
service information.
We might also have required different
actions in this AD from those in the
MCAI in order to follow our FAA
policies. Any such differences are
highlighted in a NOTE within the AD.
Costs of Compliance
We estimate that this AD will affect
about 129 products of U.S. registry. We
also estimate that it will take about 2
work-hours per product to comply with
the basic requirements of this AD. The
average labor rate is $80 per work-hour.
Required parts will cost about $54 per
E:\FR\FM\20NOR1.SGM
20NOR1
70264
Federal Register / Vol. 73, No. 225 / Thursday, November 20, 2008 / Rules and Regulations
product. Where the service information
lists required parts costs that are
covered under warranty, we have
assumed that there will be no charge for
these parts. As we do not control
warranty coverage for affected parties,
some parties may incur costs higher
than estimated here. Based on these
figures, we estimate the cost of this AD
to the U.S. operators to be $27,606, or
$214 per product.
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.
rwilkins on PROD1PC63 with RULES
Regulatory Findings
We 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 this AD:
1. Is not a ‘‘significant regulatory
action’’ under Executive Order 12866;
2. Is not a ‘‘significant rule’’ under the
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.
Examining the AD Docket
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,
VerDate Aug<31>2005
18:21 Nov 19, 2008
Jkt 217001
except Federal holidays. The AD docket
contains the NPRM, the regulatory
evaluation, any comments received, and
other information. The street address for
the Docket Operations office (telephone
(800) 647–5527) is in the ADDRESSES
section. Comments will be available in
the AD docket shortly after receipt.
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
[Amended]
2. The FAA amends § 39.13 by adding
the following new AD:
■
2008–16–10 Gulfstream Aerospace LP
(Formerly Israel Aircraft Industries,
Ltd.): Amendment 39–15628. Docket No.
FAA–2008–0270; Directorate Identifier
2007–NM–255–AD.
Effective Date
(a) This airworthiness directive (AD)
becomes effective December 26, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Gulfstream Model
Galaxy and Gulfstream 200 airplanes, serial
numbers 004 through 156, certificated in any
category.
Subject
(d) Air Transport Association (ATA) of
America Code 29: Hydraulic Power.
Reason
(e) The mandatory continuing
airworthiness information (MCAI) states:
The 3 supporting blocks [installed on
hydraulic tubes] were made of Teflon, which
is unsuitable material for this application.
Excessive wear of the blocks was discovered
on numerous aircraft, as well as several cases
of chafing between the loosely supported
tubes. In one case, hydraulic fluid was lost
due to fatigue failure of an inadequately
supported tube. Loss of hydraulic fluid
causes subsequent multiple failures of
hydraulically operated systems.
Multiple failures of hydraulically operated
systems (for the flight air brake actuators,
brake system, right thrust reverser, etc.) could
result in reduced controllability of the
airplane. The corrective actions include
repetitive visual inspections of the attaching
PO 00000
Frm 00020
Fmt 4700
Sfmt 4700
blocks for wear and of the hydraulic tubes to
determine if any tube is loose or damaged; an
inspection of the entire length of the tubes for
chafing, damage, and cracking; replacement
of chafed, damaged, or cracked tubes; and
replacement of blocks made of Teflon in the
right-hand aft fuselage equipment bay with
new blocks made of Nylon 6/6.
Actions and Compliance
(f) Do the following actions.
(1) Unless already done within 300 flight
hours or six months prior to the effective date
of this AD: Within 50 flight hours or one
month after the effective date of this AD,
whichever occurs first, perform a visual
inspection of the clamping blocks for wear
and of the hydraulic tubes to determine if
any tube is loose or damaged. Clamping
blocks are shown in detail B of Figure 2 of
Gulfstream Service Bulletin 200–29–316,
dated June 29, 2007; or in details B and C of
Figure 10, Page 0, of Chapter 29–10–30, of
the Gulfstream G200 Illustrated Parts Catalog.
(i) If clamping blocks are not worn, repeat
the inspections specified in paragraph (f)(1)
of this AD thereafter at intervals not to
exceed 300 flight hours or six months,
whichever comes first, until the replacement
required by paragraph (f)(2) of this AD is
done.
(ii) If any hydraulic tube is loose or
damaged, before further flight, inspect the
hydraulic tubes along their entire length for
chafing, damage, and cracks.
(iii) Before further flight, repair or replace
all chafed, damaged, or cracked tubes in
accordance with Chapter 20–10–12 of the
Gulfstream G200 Maintenance Manual,
Revision 15, dated March 31, 2008; or using
a method approved by either the Manager,
International Branch, ANM–116, Transport
Airplane Directorate, FAA; or the Civil
Aviation Authority of Israel (CAAI) (or its
delegated agent).
(iv) Before further flight, replace all worn
clamping blocks by doing the replacement
specified in paragraph (f)(2) of this AD,
except as provided by paragraph (f)(1)(v) of
this AD.
(v) If Nylon 6/6 clamping blocks part
number (P/N) 4AS3565055–511 are not
available during the replacement specified in
paragraph (f)(1)(iv) of this AD, before further
flight, install new or serviceable Teflon
clamping blocks P/N 4AS3565055–507.
Within 300 flight hours or six months after
doing the installation, do the actions
specified in paragraph (f)(1) of this AD and
repeat thereafter at intervals not to exceed
300 flight hours or six months, whichever
comes first, until the replacement required by
paragraph (f)(2) of this AD is done.
(2) Unless already done: Within 600 flight
hours or one year after the effective date of
this AD, whichever comes first, replace the
existing Teflon clamping blocks P/N
4AS3565055–507 with Nylon 6/6 clamping
blocks P/N 4AS3565055–511 in accordance
with Gulfstream Service Bulletin 200–29–
316, dated June 29, 2007. Accomplishment of
this replacement constitutes terminating
action for all inspections of the clamping
blocks required by this AD. Accomplishment
of this replacement also constitutes
terminating action for the repetitive
E:\FR\FM\20NOR1.SGM
20NOR1
Federal Register / Vol. 73, No. 225 / Thursday, November 20, 2008 / Rules and Regulations
inspections of the hydraulic tube required by
paragraphs (f)(1)(i) and (f)(1)(v) of this AD.
FAA AD Differences
Note 1: This AD differs from the MCAI
and/or service information as follows:
(1) The MCAI does not specify service
information if any tube replacement is done.
This AD requires doing the replacement as
specified in paragraph (f)(1)(iii) of this AD.
(2) The MCAI specifies doing a one-time
inspection of the installed Teflon blocks but
also specifies doing repetitive inspections of
temporary replacement Teflon blocks until
the permanent replacement with Nylon 6/6
clamping blocks is done. This AD requires
repetitive inspections of all Teflon blocks
until the permanent replacement is done.
(3) The MCAI specifies that doing the
replacement with Nylon 6/6 clamping blocks
constitutes terminating action. This AD
specifies that doing the replacement with
Nylon 6/6 clamping blocks constitutes
terminating action for the inspections of the
clamping blocks and for the repetitive
inspections of the hydraulic tubes.
rwilkins on PROD1PC63 with RULES
Other FAA AD Provisions
(g) The following provisions also apply to
this AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, International
Branch, ANM–116, 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: Mike Borfitz,
Aerospace Engineer, International Branch,
ANM–116, Transport Airplane Directorate,
FAA, 1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone (425)
227–2677; fax (425) 227–1149. Before using
any approved AMOC on any airplane to
which the AMOC applies, notify your
appropriate principal inspector (PI) in the
FAA Flight Standards District Office (FSDO),
or lacking a PI, your local FSDO.
(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 MCAI Israeli Airworthiness
Directive 29–07–01–11, dated May 28, 2007;
Gulfstream Service Bulletin 200–29–316,
dated June 29, 2007; and Chapter 20–10–12
of the Gulfstream G200 Maintenance Manual,
Revision 15, dated March 31, 2008; for
related information.
Material Incorporated by Reference
(i) You must use Gulfstream Service
Bulletin 200–29–316, dated June 29, 2007;
and Chapter 20–10–12 of the Gulfstream
VerDate Aug<31>2005
18:21 Nov 19, 2008
Jkt 217001
G200 Maintenance Manual, Revision 15,
dated March 31, 2008; as applicable, to do
the actions required by this AD, unless the
AD specifies otherwise.
Chapter 20 of the Gulfstream G200
Maintenance Manual, Revision 15, dated
March 31, 2008, contains the following
effective pages:
Revision
level
shown on
page
Pages
List of Effective
Pages:
Pages 1–2 ...
15
Date shown on
page
Mar. 31, 2008.
(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 Gulfstream Aerospace
Corporation, P.O. Box 2206, Mail Station
D–25, Savannah, Georgia 31402–2206;
telephone 800–810–4853; fax 912–965–3520;
e-mail pubs@gulfstream.com; Internet https://
www.gulfstream.com/product_support/
technical_pubs/pubs/index.htm.
(3) 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/
code_of_federal_regulations/
ibr_locations.html.
Issued in Renton, Washington, on
November 4, 2008.
Stephen P. Boyd,
Assistant Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. E8–26922 Filed 11–19–08; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2008–0887; Directorate
Identifier 2007–NM–336–AD; Amendment
39–15735; AD 2008–23–14]
RIN 2120–AA64
Airworthiness Directives; BAE
Systems (Operations) Limited Model
BAe 146 and Avro 146–RJ Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
SUMMARY: We are adopting a new
airworthiness directive (AD) for the
products listed above. This AD results
from mandatory continuing
PO 00000
Frm 00021
Fmt 4700
Sfmt 4700
70265
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:
During inspection of undercarriage main
beam sidestays, bolts attaching the
undercarriage main beam sidestay to frame
29 were found with the heads of the bolts
sheared off. Loose bolt assemblies were also
found.
If sheared or loose bolts are not detected
and replaced, a possible consequence is the
collapse of the main landing gear.
*
*
*
*
*
We are issuing this AD to require
actions to correct the unsafe condition
on these products.
DATES: This AD becomes effective
December 26, 2008.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of December 26, 2008.
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:
Todd Thompson, Aerospace Engineer,
International Branch, ANM–116,
Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone
(425) 227–1175; fax (425) 227–1149.
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 August 21, 2008 (73 FR
49364). That NPRM proposed to correct
an unsafe condition for the specified
products. The MCAI states:
During inspection of undercarriage main
beam sidestays, bolts attaching the
undercarriage main beam sidestay to frame
29 were found with the heads of the bolts
sheared off. Loose bolt assemblies were also
found.
If sheared or loose bolts are not detected
and replaced, a possible consequence is the
collapse of the main landing gear.
For the reasons described above, this
Airworthiness Directive (AD) requires a onetime [rotating eddy current] inspection of the
bolt bores and bore dimensions and the
installation of replacement bolts, as
necessary.
Corrective actions include contacting
BAE Systems (Operations) Limited for
E:\FR\FM\20NOR1.SGM
20NOR1
]]>Agencies
[Federal Register Volume 73, Number 225 (Thursday, November 20, 2008)]
[Rules and Regulations]
[Pages 70263-70265]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-26922]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2008-0270; Directorate Identifier 2007-NM-255-AD;
Amendment 39-15628; AD 2008-16-10]
RIN 2120-AA64
Airworthiness Directives; Gulfstream Aerospace LP Model Galaxy
Airplanes and Gulfstream 200 Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: 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:
The 3 supporting blocks [installed on hydraulic tubes] were made
of Teflon, which is unsuitable material for this application.
Excessive wear of the blocks was discovered on numerous aircraft, as
well as several cases of chafing between the loosely supported
tubes. In one case, hydraulic fluid was lost due to fatigue failure
of an inadequately supported tube. Loss of hydraulic fluid causes
subsequent multiple failures of hydraulically operated systems.
Multiple failures of hydraulically operated systems (for the flight air
brake actuators, brake system, right thrust reverser, etc.) could
result in reduced controllability of the airplane. We are issuing this
AD to require actions to correct the unsafe condition on these
products.
DATES: This AD becomes effective December 26, 2008.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of December 26,
2008.
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: Mike Borfitz, Aerospace Engineer,
International Branch, ANM-116, Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425)
227-2677; fax (425) 227-1149.
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 March 13, 2008 (73
FR 13490). That NPRM proposed to correct an unsafe condition for the
specified products. The MCAI states:
The 3 supporting blocks [installed on hydraulic tubes] were made
of Teflon, which is unsuitable material for this application.
Excessive wear of the blocks was discovered on numerous aircraft, as
well as several cases of chafing between the loosely supported
tubes. In one case, hydraulic fluid was lost due to fatigue failure
of an inadequately supported tube. Loss of hydraulic fluid causes
subsequent multiple failures of hydraulically operated systems.
Multiple failures of hydraulically operated systems (for the flight air
brake actuators, brake system, right thrust reverser, etc.) could
result in reduced controllability of the airplane. The corrective
actions include repetitive visual inspections of the attaching blocks
for wear and of the hydraulic tubes to determine if any tube is loose
or damaged; an inspection of the entire length of the tubes for
chafing, damage, and cracking; replacement of chafed, damaged, or
cracked tubes; and replacement of blocks made of Teflon in the right-
hand aft fuselage equipment bay with new blocks made of Nylon 6/6. 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 received no comments on the NPRM or on the determination of
the cost to the public.
Conclusion
We reviewed the available data and determined that air safety and
the public interest require adopting the AD as proposed.
Changes to Note 1 and Service Information References
The statement specified in Note 1 of the NPRM is informational only
and is not part of the requirements of this AD. The actions specified
in that statement are required regardless of AD action. We have removed
Note 1 of the NPRM from this AD and revised the numbering on the
subsequent Note in this AD.
We have revised paragraph (f)(1)(iii) of this AD to clarify that
the repair may be done in accordance with Chapter 20-10-12 of the
Gulfstream G200 Maintenance Manual, Revision 15, dated March 31, 2008.
Differences Between This AD and the MCAI or Service Information
We have reviewed the MCAI and related service information and, in
general, agree with their substance. But we might have found it
necessary to use different words from those in the MCAI to ensure the
AD is clear for U.S. operators and is enforceable. In making these
changes, we do not intend to differ substantively from the information
provided in the MCAI and related service information.
We might also have required different actions in this AD from those
in the MCAI in order to follow our FAA policies. Any such differences
are highlighted in a NOTE within the AD.
Costs of Compliance
We estimate that this AD will affect about 129 products of U.S.
registry. We also estimate that it will take about 2 work-hours per
product to comply with the basic requirements of this AD. The average
labor rate is $80 per work-hour. Required parts will cost about $54 per
[[Page 70264]]
product. Where the service information lists required parts costs that
are covered under warranty, we have assumed that there will be no
charge for these parts. As we do not control warranty coverage for
affected parties, some parties may incur costs higher than estimated
here. Based on these figures, we estimate the cost of this AD to the
U.S. operators to be $27,606, or $214 per product.
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 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 this AD:
1. Is not a ``significant regulatory action'' under Executive Order
12866;
2. Is not a ``significant rule'' under the 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.
Examining the AD Docket
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 the NPRM, the regulatory evaluation,
any comments received, and other information. The street address for
the Docket Operations office (telephone (800) 647-5527) is in the
ADDRESSES section. Comments will be available in the AD docket shortly
after receipt.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
Accordingly, under the authority delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new AD:
2008-16-10 Gulfstream Aerospace LP (Formerly Israel Aircraft
Industries, Ltd.): Amendment 39-15628. Docket No. FAA-2008-0270;
Directorate Identifier 2007-NM-255-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective December
26, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Gulfstream Model Galaxy and Gulfstream
200 airplanes, serial numbers 004 through 156, certificated in any
category.
Subject
(d) Air Transport Association (ATA) of America Code 29:
Hydraulic Power.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
The 3 supporting blocks [installed on hydraulic tubes] were made
of Teflon, which is unsuitable material for this application.
Excessive wear of the blocks was discovered on numerous aircraft, as
well as several cases of chafing between the loosely supported
tubes. In one case, hydraulic fluid was lost due to fatigue failure
of an inadequately supported tube. Loss of hydraulic fluid causes
subsequent multiple failures of hydraulically operated systems.
Multiple failures of hydraulically operated systems (for the flight
air brake actuators, brake system, right thrust reverser, etc.)
could result in reduced controllability of the airplane. The
corrective actions include repetitive visual inspections of the
attaching blocks for wear and of the hydraulic tubes to determine if
any tube is loose or damaged; an inspection of the entire length of
the tubes for chafing, damage, and cracking; replacement of chafed,
damaged, or cracked tubes; and replacement of blocks made of Teflon
in the right-hand aft fuselage equipment bay with new blocks made of
Nylon 6/6.
Actions and Compliance
(f) Do the following actions.
(1) Unless already done within 300 flight hours or six months
prior to the effective date of this AD: Within 50 flight hours or
one month after the effective date of this AD, whichever occurs
first, perform a visual inspection of the clamping blocks for wear
and of the hydraulic tubes to determine if any tube is loose or
damaged. Clamping blocks are shown in detail B of Figure 2 of
Gulfstream Service Bulletin 200-29-316, dated June 29, 2007; or in
details B and C of Figure 10, Page 0, of Chapter 29-10-30, of the
Gulfstream G200 Illustrated Parts Catalog.
(i) If clamping blocks are not worn, repeat the inspections
specified in paragraph (f)(1) of this AD thereafter at intervals not
to exceed 300 flight hours or six months, whichever comes first,
until the replacement required by paragraph (f)(2) of this AD is
done.
(ii) If any hydraulic tube is loose or damaged, before further
flight, inspect the hydraulic tubes along their entire length for
chafing, damage, and cracks.
(iii) Before further flight, repair or replace all chafed,
damaged, or cracked tubes in accordance with Chapter 20-10-12 of the
Gulfstream G200 Maintenance Manual, Revision 15, dated March 31,
2008; or using a method approved by either the Manager,
International Branch, ANM-116, Transport Airplane Directorate, FAA;
or the Civil Aviation Authority of Israel (CAAI) (or its delegated
agent).
(iv) Before further flight, replace all worn clamping blocks by
doing the replacement specified in paragraph (f)(2) of this AD,
except as provided by paragraph (f)(1)(v) of this AD.
(v) If Nylon 6/6 clamping blocks part number (P/N) 4AS3565055-
511 are not available during the replacement specified in paragraph
(f)(1)(iv) of this AD, before further flight, install new or
serviceable Teflon clamping blocks P/N 4AS3565055-507. Within 300
flight hours or six months after doing the installation, do the
actions specified in paragraph (f)(1) of this AD and repeat
thereafter at intervals not to exceed 300 flight hours or six
months, whichever comes first, until the replacement required by
paragraph (f)(2) of this AD is done.
(2) Unless already done: Within 600 flight hours or one year
after the effective date of this AD, whichever comes first, replace
the existing Teflon clamping blocks P/N 4AS3565055-507 with Nylon 6/
6 clamping blocks P/N 4AS3565055-511 in accordance with Gulfstream
Service Bulletin 200-29-316, dated June 29, 2007. Accomplishment of
this replacement constitutes terminating action for all inspections
of the clamping blocks required by this AD. Accomplishment of this
replacement also constitutes terminating action for the repetitive
[[Page 70265]]
inspections of the hydraulic tube required by paragraphs (f)(1)(i)
and (f)(1)(v) of this AD.
FAA AD Differences
Note 1: This AD differs from the MCAI and/or service information
as follows:
(1) The MCAI does not specify service information if any tube
replacement is done. This AD requires doing the replacement as
specified in paragraph (f)(1)(iii) of this AD.
(2) The MCAI specifies doing a one-time inspection of the
installed Teflon blocks but also specifies doing repetitive
inspections of temporary replacement Teflon blocks until the
permanent replacement with Nylon 6/6 clamping blocks is done. This
AD requires repetitive inspections of all Teflon blocks until the
permanent replacement is done.
(3) The MCAI specifies that doing the replacement with Nylon 6/6
clamping blocks constitutes terminating action. This AD specifies
that doing the replacement with Nylon 6/6 clamping blocks
constitutes terminating action for the inspections of the clamping
blocks and for the repetitive inspections of the hydraulic tubes.
Other FAA AD Provisions
(g) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
International Branch, ANM-116, 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: Mike Borfitz, Aerospace Engineer,
International Branch, ANM-116, Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone
(425) 227-2677; fax (425) 227-1149. Before using any approved AMOC
on any airplane to which the AMOC applies, notify your appropriate
principal inspector (PI) in the FAA Flight Standards District Office
(FSDO), or lacking a PI, your local FSDO.
(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
FAA-approved 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 MCAI Israeli Airworthiness Directive 29-07-01-11,
dated May 28, 2007; Gulfstream Service Bulletin 200-29-316, dated
June 29, 2007; and Chapter 20-10-12 of the Gulfstream G200
Maintenance Manual, Revision 15, dated March 31, 2008; for related
information.
Material Incorporated by Reference
(i) You must use Gulfstream Service Bulletin 200-29-316, dated
June 29, 2007; and Chapter 20-10-12 of the Gulfstream G200
Maintenance Manual, Revision 15, dated March 31, 2008; as
applicable, to do the actions required by this AD, unless the AD
specifies otherwise.
Chapter 20 of the Gulfstream G200 Maintenance Manual, Revision
15, dated March 31, 2008, contains the following effective pages:
------------------------------------------------------------------------
Revision
level
Pages shown on Date shown on page
page
------------------------------------------------------------------------
List of Effective Pages:
Pages 1-2......................... 15 Mar. 31, 2008.
------------------------------------------------------------------------
(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
Gulfstream Aerospace Corporation, P.O. Box 2206, Mail Station D-25,
Savannah, Georgia 31402-2206; telephone 800-810-4853; fax 912-965-
3520; e-mail pubs@gulfstream.com; Internet https://
www.gulfstream.com/product_support/technical_pubs/pubs/index.htm.
(3) 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/code_of_
federal_regulations/ibr_locations.html.
Issued in Renton, Washington, on November 4, 2008.
Stephen P. Boyd,
Assistant Manager, Transport Airplane Directorate, Aircraft
Certification Service.
[FR Doc. E8-26922 Filed 11-19-08; 8:45 am]
BILLING CODE 4910-13-P
