Airworthiness Directives; Gulfstream Aerospace LP Model Astra SPX and 1125 Westwind Astra Airplanes and Gulfstream 100 Airplanes, 13800-13802 [E8-5147]
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mstockstill on PROD1PC66 with PROPOSALS
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Federal Register / Vol. 73, No. 51 / Friday, March 14, 2008 / Proposed Rules
sources, including the Finance and the
Promotion sub-committees. Alternative
expenditure levels were discussed at
length by all parties. The assessment
rate of $0.22 per 50-pound bag or
equivalent of assessable Walla Walla
sweet onions was then determined by
dividing the total recommended budget
by the quantity of assessable Walla
Walla sweet onions, estimated at
510,250 50-pound units for the 2008
fiscal period. Anticipated assessment
revenue is expected to be approximately
$4,000 below the budgeted expenses,
which the Committee determined to be
acceptable. The Committee expects that
interest income for the year will
compensate for the $4,000 deficit, but is
prepared to use reserve funds if
necessary.
A review of historical information and
preliminary information pertaining to
the upcoming crop year indicates that
the grower price for Walla Walla sweet
onions for the 2008 season could range
between $10.00 and $12.00 per 50pound bag or equivalent. Therefore, the
estimated assessment revenue for the
2008 crop year as a percentage of total
grower revenue could range between
1.83 and 2.20 percent.
This action would increase the
assessment obligation imposed on
handlers. While assessments impose
some additional costs on handlers, the
costs are minimal and uniform on all
handlers. Some of the additional costs
may be passed on to producers.
However, these costs would be offset by
the benefits derived by the operation of
the marketing order. In addition, the
Committee’s meeting was widely
publicized throughout the Walla Walla
sweet onion industry and all interested
persons were invited to attend the
meeting and participate in Committee
deliberations on all issues. Like all
Committee meetings, the December 11,
2007, meeting was a public meeting and
all entities, both large and small, were
able to express views on this issue.
Finally, interested persons are invited to
submit comments on this proposed rule,
including the regulatory and
informational impacts of this action on
small businesses.
This proposed rule would impose no
additional reporting or recordkeeping
requirements on either small or large
production area commodity handlers.
As with all Federal marketing order
programs, reports and forms are
periodically reviewed to reduce
information requirements and
duplication by industry and public
sector agencies.
AMS is committed to complying with
the E-Government Act, to promote the
use of the Internet and other
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19:26 Mar 13, 2008
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information technologies to provide
increased opportunities for citizen
access to Government information and
services, and for other purposes.
USDA has not identified any relevant
Federal rules that duplicate, overlap, or
conflict with this rule.
A small business guide on complying
with fruit, vegetable, and specialty crop
marketing agreements and orders may
be viewed at: https://www.ams.usda.gov/
fv/moab.html. Any questions about the
compliance guide should be sent to Jay
Guerber at the previously mentioned
address in the FOR FURTHER INFORMATION
CONTACT section.
A 60-day comment period is provided
to allow interested persons to respond
to this proposed rule. All written
comments timely received will be
considered before a final determination
is made on this matter.
List of Subjects in 7 CFR Part 956
Marketing agreements, Onions,
Reporting and recordkeeping
requirements.
For the reasons set forth in the
preamble, 7 CFR part 956 is proposed to
be amended as follows:
PART 956—SWEET ONIONS GROWN
IN THE WALLA WALLA VALLEY OF
SOUTHEAST WASHINGTON AND
NORTHEAST OREGON
1. The authority citation for 7 CFR
part 956 continues to read as follows:
Authority: 7 U.S.C. 601–674.
2. Section 956.202 is revised to read
as follows:
§ 956.202
Assessment rate.
On and after January 1, 2008, an
assessment rate of $0.22 per 50-pound
bag or equivalent is established for
Walla Walla sweet onions.
Dated: March 10, 2008.
Lloyd C. Day,
Administrator, Agricultural Marketing
Service.
[FR Doc. E8–5102 Filed 3–13–08; 8:45 am]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2008–0299; Directorate
Identifier 2007–NM–254–AD]
RIN 2120–AA64
Airworthiness Directives; Gulfstream
Aerospace LP Model Astra SPX and
1125 Westwind Astra Airplanes and
Gulfstream 100 Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
SUMMARY: We propose to adopt a new
airworthiness directive (AD) for the
products listed above. This proposed
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:
Two of the fasteners used to attach the
‘‘scissors’’ to the horizontal and the vertical
stabilizers were found broken during routine
maintenance. The highest loads on the
‘‘scissors’’ occur when using high reverse
thrust. Therefore, the reverse thrust must be
limited to idle in order to keep the loads at
a sufficiently low level to preclude any
structural problem. * * *
Failure of the attachment fasteners
could result in possible in-flight loss of
a horizontal or vertical stabilizer and
consequent loss of control of the
airplane. The proposed AD would
require actions that are intended to
address the unsafe condition described
in the MCAI.
DATES: We must receive comments on
this proposed AD by April 14, 2008.
ADDRESSES: You may send comments by
any of the following methods:
• Federal eRulemaking Portal: Go to
https://www.regulations.gov. Follow the
instructions for submitting comments.
• Fax: (202) 493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue, SE.,
Washington, DC 20590.
• Hand Delivery: U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–40, 1200 New Jersey Avenue, SE.,
Washington, DC, between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
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Federal Register / Vol. 73, No. 51 / Friday, March 14, 2008 / Proposed Rules
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 this proposed AD, 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.
FOR FURTHER INFORMATION CONTACT:
Mike Borfitz, Aerospace Engineer,
International Branch, ANM–116, FAA,
Transport Airplane Directorate, 1601
Lind Avenue, SW., Renton, Washington
98057–3356; telephone (425) 227–2677;
fax (425) 227–1149.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written
relevant data, views, or arguments about
this proposed AD. Send your comments
to an address listed under the
ADDRESSES section. Include ‘‘Docket No.
FAA–2008–0299; Directorate Identifier
2007–NM–254–AD’’ at the beginning of
your comments. We specifically invite
comments on the overall regulatory,
economic, environmental, and energy
aspects of this proposed AD. We will
consider all comments received by the
closing date and may amend this
proposed AD based on those comments.
We will post all comments we
receive, without change, to https://
www.regulations.gov, including any
personal information you provide. We
will also post a report summarizing each
substantive verbal contact we receive
about this proposed AD.
mstockstill on PROD1PC66 with PROPOSALS
Discussion
The Civil Aviation Authority of Israel
(CAAI), which is the aviation authority
for Israel, has issued Israeli
Airworthiness Directive 55–07–06–
07R1, dated June 26, 2007 (referred to
after this as ‘‘the MCAI’’), to correct an
unsafe condition for the specified
products. The MCAI states:
Two of the fasteners used to attach the
‘‘scissors’’ to the horizontal and the vertical
stabilizers were found broken during routine
maintenance. The highest loads on the
‘‘scissors’’ occur when using high reverse
thrust. Therefore, the reverse thrust must be
limited to idle in order to keep the loads at
a sufficiently low level to preclude any
structural problem. It was established that on
model 1125 Astra, alternate fasteners of
inferior strength were sometimes installed.
When the originally specified fasteners are
installed, the limitations on reverse thrust
VerDate Aug<31>2005
19:26 Mar 13, 2008
Jkt 214001
used may be lifted. For models Astra SPX
and G100, however, the limitation remains in
effect till further revision of this AD.
Failure of the attachment fasteners
could result in possible in-flight loss of
a horizontal or vertical stabilizer and
consequent loss of control of the
airplane. Corrective actions include
revising the Airplane Flight Manual
(AFM); inspections for damage of the
bolts and replacing the bolt, if
necessary; and doing related
investigative and other corrective
actions (eddy current inspection for bolt
hole diameter and damage, contact
Gulfstream for repair and do repair).
You may obtain further information by
examining the MCAI in the AD docket.
Relevant Service Information
Gulfstream has issued Alert Service
Bulletin 100–55A–293, dated June 22,
2007. Gulfstream also issued Astra SPX
AFM Temporary Revision (TR) No. 8,
Astra AFM TR No. 15, and Gulfstream
100 AFM TR No. 1, all dated June 14,
2007; to the Astra SPX, Astra, or
Gulfstream 100 AFMs, as applicable.
The actions described in this service
information are intended to correct the
unsafe condition identified in the
MCAI.
FAA’s Determination and Requirements
of This Proposed AD
This product has been approved by
the aviation authority of another
country, and is approved for operation
in the United States. Pursuant to our
bilateral agreement with the State of
Design Authority, we have been notified
of the unsafe condition described in the
MCAI and service information
referenced above. We are proposing this
AD because we evaluated all pertinent
information and determined an unsafe
condition exists and is likely to exist or
develop on other products of the same
type design.
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 proposed
different actions in this AD from those
in the MCAI in order to follow FAA
policies. Any such differences are
highlighted in a Note within the
proposed AD.
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13801
Costs of Compliance
Based on the service information, we
estimate that this proposed AD would
affect about 129 products of U.S.
registry. We also estimate that it would
take about 10 work-hours per product to
comply with the basic requirements of
this proposed AD. The average labor
rate is $80 per work-hour. Required
parts would cost about $33 per 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 costs.
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 the proposed AD on U.S.
operators to be $107,457, or $833 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 proposed AD
would not have federalism implications
under Executive Order 13132. This
proposed AD would 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 proposed regulation:
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
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Federal Register / Vol. 73, No. 51 / Friday, March 14, 2008 / Proposed Rules
under the criteria of the Regulatory
Flexibility Act.
We prepared a regulatory evaluation
of the estimated costs to comply with
this proposed AD and placed it in the
AD docket.
(AFM); inspections for damage of the bolts
and replacing the bolt, if necessary; and
doing related investigative and other
corrective actions (eddy current inspection
for bolt hole diameter and damage, contact
Gulfstream for repair and do repair).
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Safety.
Actions and Compliance
The Proposed Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA proposes to amend 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:
Gulfstream Aerospace LP (Formerly Israel
Aircraft Industries, Ltd.): Docket No.
FAA–2008–0299; Directorate Identifier
2007–NM–254–AD.
Comments Due Date
(a) We must receive comments by April 14,
2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Gulfstream
Aerospace LP Model Astra SPX and 1125
Westwind Astra airplanes and Gulfstream
100 airplanes; certificated in any category;
serial numbers 004 through 158.
mstockstill on PROD1PC66 with PROPOSALS
Subject
(d) Air Transport Association (ATA) of
America Code 55: Stabilizers.
Reason
(e) The mandatory continuing
airworthiness information (MCAI) states:
Two of the fasteners used to attach the
‘‘scissors’’ to the horizontal and the vertical
stabilizers were found broken during routine
maintenance. The highest loads on the
‘‘scissors’’ occur when using high reverse
thrust. Therefore, the reverse thrust must be
limited to idle in order to keep the loads at
a sufficiently low level to preclude any
structural problem. It was established that on
model 1125 Astra, alternate fasteners of
inferior strength were sometimes installed.
When the originally specified fasteners are
installed, the limitations on reverse thrust
used may be lifted. For models Astra SPX
and G100, however, the limitation remains in
effect until further revision of this AD.
Failure of the attachment fasteners could
result in possible in-flight loss of a horizontal
or vertical stabilizer and consequent loss of
control of the airplane. Corrective actions
include revising the Airplane Flight Manual
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19:26 Mar 13, 2008
Jkt 214001
(f) Unless already done, do the following
actions.
(1) Within 30 days after the effective date
of this AD: Revise the Limitations section of
the Airplane Flight Manual (AFM) by
incorporating the information in the
applicable Temporary Revisions (TR): Astra
AFM TR No. 15; Astra SPX AFM TR No. 8;
or Gulfstream 100 AFM TR No. 1; all dated
June 14, 2007; into the limitations section of
the Astra SPX, Astra, or Gulfstream 100
AFM, as applicable. The TRs limit the
normal use of reverse thrust to idle.
Note 1: The actions required by paragraph
(f) of this AD may be done by inserting a
copy of Astra AFM TR No. 15; Astra SPX
AFM TR No. 8; or Gulfstream 100 AFM TR
No. 1; all dated June 14, 2007; as applicable;
into the limitations section of the Astra SPX,
Astra, or Gulfstream 100 AFM, as applicable.
When the applicable TR has been included
in the general revisions of the AFM, the
general revisions may be inserted in the
AFM.
(2) For all airplanes: Within 25 flight hours
or 30 days after the effective date of this AD,
whichever comes first, do the inspections
specified in paragraphs (f)(2)(i) and (f)(2)(ii)
of this AD in accordance with Part A of
Gulfstream Alert Service Bulletin 100–55A–
293, dated June 22, 2007.
(i) Visually inspect the attachment bolts
and replace any damaged bolt before further
flight.
(ii) Perform a detailed visual inspection of
fittings with P/N 25W357222–501–51, and
fillers with P/N 25W4011001–003, and
surrounding structure for damage. If blind
bolts with P/N MS21141U0612 are installed
and no damage is found, no further action is
required. If any damage is found, before
further flight, repair using a method
approved in accordance with the procedures
specified in paragraph (g)(2) of this AD. If
any bolt with P/N AN173C11 is installed and
damage is found, replace the bolt and do all
related investigative and applicable
corrective actions before further flight.
(3) For Model 1125 Westwind Astra
airplanes (serial numbers 004, 011 through
072 inclusive, and 073 through 078
inclusive): Within 12 months after the
effective date of this AD, replace all
AN173C11 bolts, and do all related
investigative and applicable corrective
actions before further flight, as detailed in
Part B of Gulfstream Alert Service Bulletin
100–55A–293, dated June 22, 2007.
Accomplishment of Part B of the alert service
bulletin constitutes terminating action for
paragraph (f)(1) of this AD. TR No. 15 may
be deleted and unlimited use of reverse
thrust is allowed per the AFM.
Note 2: Reverse thrust limitations remain
in effect for Model Astra SPX and Gulfstream
100 airplanes.
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FAA AD Differences
Note 3: This AD differs from the MCAI
and/or service information as follows:
Compliance Time: The compliance time
required by the MCAI or service information
for performing the AFM revision is
immediate on receipt of this AD; however, to
avoid inadvertently grounding airplanes, this
AD requires performing the AFM revision
within 30 days after the effective date of this
AD.
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, Transport Airplane
Directorate, 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, FAA, Transport Airplane
Directorate, 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 CAAI Airworthiness
Directive 55–07–06–07R1, dated June 26,
2007; Gulfstream Alert Service Bulletin 100–
55A–293, dated June 22, 2007; and Astra SPX
AFM Temporary Revision (TR) No. 8; Astra
AFM TR No. 15; and Gulfstream 100 AFM TR
No. 1, all dated June 14, 2007; for related
information.
Issued in Renton, Washington, on March 7,
2008.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E8–5147 Filed 3–13–08; 8:45 am]
BILLING CODE 4910–13–P
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]]>Agencies
[Federal Register Volume 73, Number 51 (Friday, March 14, 2008)]
[Proposed Rules]
[Pages 13800-13802]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-5147]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2008-0299; Directorate Identifier 2007-NM-254-AD]
RIN 2120-AA64
Airworthiness Directives; Gulfstream Aerospace LP Model Astra SPX
and 1125 Westwind Astra Airplanes and Gulfstream 100 Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: We propose to adopt a new airworthiness directive (AD) for the
products listed above. This proposed 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:
Two of the fasteners used to attach the ``scissors'' to the
horizontal and the vertical stabilizers were found broken during
routine maintenance. The highest loads on the ``scissors'' occur
when using high reverse thrust. Therefore, the reverse thrust must
be limited to idle in order to keep the loads at a sufficiently low
level to preclude any structural problem. * * *
Failure of the attachment fasteners could result in possible in-flight
loss of a horizontal or vertical stabilizer and consequent loss of
control of the airplane. The proposed AD would require actions that are
intended to address the unsafe condition described in the MCAI.
DATES: We must receive comments on this proposed AD by April 14, 2008.
ADDRESSES: You may send comments by any of the following methods:
Federal eRulemaking Portal: Go to https://
www.regulations.gov. Follow the instructions for submitting comments.
Fax: (202) 493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue, SE., Washington, DC 20590.
Hand Delivery: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-40, 1200 New
Jersey Avenue, SE., Washington, DC, between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
[[Page 13801]]
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 this proposed AD, 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.
FOR FURTHER INFORMATION CONTACT: Mike Borfitz, Aerospace Engineer,
International Branch, ANM-116, FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425)
227-2677; fax (425) 227-1149.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written relevant data, views, or
arguments about this proposed AD. Send your comments to an address
listed under the ADDRESSES section. Include ``Docket No. FAA-2008-0299;
Directorate Identifier 2007-NM-254-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this proposed AD. We
will consider all comments received by the closing date and may amend
this proposed AD based on those comments.
We will post all comments we receive, without change, to https://
www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this proposed AD.
Discussion
The Civil Aviation Authority of Israel (CAAI), which is the
aviation authority for Israel, has issued Israeli Airworthiness
Directive 55-07-06-07R1, dated June 26, 2007 (referred to after this as
``the MCAI''), to correct an unsafe condition for the specified
products. The MCAI states:
Two of the fasteners used to attach the ``scissors'' to the
horizontal and the vertical stabilizers were found broken during
routine maintenance. The highest loads on the ``scissors'' occur
when using high reverse thrust. Therefore, the reverse thrust must
be limited to idle in order to keep the loads at a sufficiently low
level to preclude any structural problem. It was established that on
model 1125 Astra, alternate fasteners of inferior strength were
sometimes installed. When the originally specified fasteners are
installed, the limitations on reverse thrust used may be lifted. For
models Astra SPX and G100, however, the limitation remains in effect
till further revision of this AD.
Failure of the attachment fasteners could result in possible in-
flight loss of a horizontal or vertical stabilizer and consequent loss
of control of the airplane. Corrective actions include revising the
Airplane Flight Manual (AFM); inspections for damage of the bolts and
replacing the bolt, if necessary; and doing related investigative and
other corrective actions (eddy current inspection for bolt hole
diameter and damage, contact Gulfstream for repair and do repair). You
may obtain further information by examining the MCAI in the AD docket.
Relevant Service Information
Gulfstream has issued Alert Service Bulletin 100-55A-293, dated
June 22, 2007. Gulfstream also issued Astra SPX AFM Temporary Revision
(TR) No. 8, Astra AFM TR No. 15, and Gulfstream 100 AFM TR No. 1, all
dated June 14, 2007; to the Astra SPX, Astra, or Gulfstream 100 AFMs,
as applicable. The actions described in this service information are
intended to correct the unsafe condition identified in the MCAI.
FAA's Determination and Requirements of This Proposed AD
This product has been approved by the aviation authority of another
country, and is approved for operation in the United States. Pursuant
to our bilateral agreement with the State of Design Authority, we have
been notified of the unsafe condition described in the MCAI and service
information referenced above. We are proposing this AD because we
evaluated all pertinent information and determined an unsafe condition
exists and is likely to exist or develop on other products of the same
type design.
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 proposed different actions in this AD from those
in the MCAI in order to follow FAA policies. Any such differences are
highlighted in a Note within the proposed AD.
Costs of Compliance
Based on the service information, we estimate that this proposed AD
would affect about 129 products of U.S. registry. We also estimate that
it would take about 10 work-hours per product to comply with the basic
requirements of this proposed AD. The average labor rate is $80 per
work-hour. Required parts would cost about $33 per 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 costs.
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 the proposed AD on U.S. operators to
be $107,457, or $833 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 proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would 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 proposed
regulation:
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
[[Page 13802]]
under the criteria of the Regulatory Flexibility Act.
We prepared a regulatory evaluation of the estimated costs to
comply with this proposed AD and placed it in the AD docket.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Safety.
The Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 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.
Sec. 39.13 [Amended]
2. The FAA amends Sec. 39.13 by adding the following new AD:
Gulfstream Aerospace LP (Formerly Israel Aircraft Industries, Ltd.):
Docket No. FAA-2008-0299; Directorate Identifier 2007-NM-254-AD.
Comments Due Date
(a) We must receive comments by April 14, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Gulfstream Aerospace LP Model Astra SPX
and 1125 Westwind Astra airplanes and Gulfstream 100 airplanes;
certificated in any category; serial numbers 004 through 158.
Subject
(d) Air Transport Association (ATA) of America Code 55:
Stabilizers.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
Two of the fasteners used to attach the ``scissors'' to the
horizontal and the vertical stabilizers were found broken during
routine maintenance. The highest loads on the ``scissors'' occur
when using high reverse thrust. Therefore, the reverse thrust must
be limited to idle in order to keep the loads at a sufficiently low
level to preclude any structural problem. It was established that on
model 1125 Astra, alternate fasteners of inferior strength were
sometimes installed. When the originally specified fasteners are
installed, the limitations on reverse thrust used may be lifted. For
models Astra SPX and G100, however, the limitation remains in effect
until further revision of this AD.
Failure of the attachment fasteners could result in possible in-
flight loss of a horizontal or vertical stabilizer and consequent
loss of control of the airplane. Corrective actions include revising
the Airplane Flight Manual (AFM); inspections for damage of the
bolts and replacing the bolt, if necessary; and doing related
investigative and other corrective actions (eddy current inspection
for bolt hole diameter and damage, contact Gulfstream for repair and
do repair).
Actions and Compliance
(f) Unless already done, do the following actions.
(1) Within 30 days after the effective date of this AD: Revise
the Limitations section of the Airplane Flight Manual (AFM) by
incorporating the information in the applicable Temporary Revisions
(TR): Astra AFM TR No. 15; Astra SPX AFM TR No. 8; or Gulfstream 100
AFM TR No. 1; all dated June 14, 2007; into the limitations section
of the Astra SPX, Astra, or Gulfstream 100 AFM, as applicable. The
TRs limit the normal use of reverse thrust to idle.
Note 1: The actions required by paragraph (f) of this AD may be
done by inserting a copy of Astra AFM TR No. 15; Astra SPX AFM TR
No. 8; or Gulfstream 100 AFM TR No. 1; all dated June 14, 2007; as
applicable; into the limitations section of the Astra SPX, Astra, or
Gulfstream 100 AFM, as applicable. When the applicable TR has been
included in the general revisions of the AFM, the general revisions
may be inserted in the AFM.
(2) For all airplanes: Within 25 flight hours or 30 days after
the effective date of this AD, whichever comes first, do the
inspections specified in paragraphs (f)(2)(i) and (f)(2)(ii) of this
AD in accordance with Part A of Gulfstream Alert Service Bulletin
100-55A-293, dated June 22, 2007.
(i) Visually inspect the attachment bolts and replace any
damaged bolt before further flight.
(ii) Perform a detailed visual inspection of fittings with P/N
25W357222-501-51, and fillers with P/N 25W4011001-003, and
surrounding structure for damage. If blind bolts with P/N
MS21141U0612 are installed and no damage is found, no further action
is required. If any damage is found, before further flight, repair
using a method approved in accordance with the procedures specified
in paragraph (g)(2) of this AD. If any bolt with P/N AN173C11 is
installed and damage is found, replace the bolt and do all related
investigative and applicable corrective actions before further
flight.
(3) For Model 1125 Westwind Astra airplanes (serial numbers 004,
011 through 072 inclusive, and 073 through 078 inclusive): Within 12
months after the effective date of this AD, replace all AN173C11
bolts, and do all related investigative and applicable corrective
actions before further flight, as detailed in Part B of Gulfstream
Alert Service Bulletin 100-55A-293, dated June 22, 2007.
Accomplishment of Part B of the alert service bulletin constitutes
terminating action for paragraph (f)(1) of this AD. TR No. 15 may be
deleted and unlimited use of reverse thrust is allowed per the AFM.
Note 2: Reverse thrust limitations remain in effect for Model
Astra SPX and Gulfstream 100 airplanes.
FAA AD Differences
Note 3: This AD differs from the MCAI and/or service information
as follows:
Compliance Time: The compliance time required by the MCAI or
service information for performing the AFM revision is immediate on
receipt of this AD; however, to avoid inadvertently grounding
airplanes, this AD requires performing the AFM revision within 30
days after the effective date of this AD.
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, Transport Airplane Directorate, 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, FAA,
Transport Airplane Directorate, 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 CAAI Airworthiness Directive 55-07-06-07R1,
dated June 26, 2007; Gulfstream Alert Service Bulletin 100-55A-293,
dated June 22, 2007; and Astra SPX AFM Temporary Revision (TR) No.
8; Astra AFM TR No. 15; and Gulfstream 100 AFM TR No. 1, all dated
June 14, 2007; for related information.
Issued in Renton, Washington, on March 7, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E8-5147 Filed 3-13-08; 8:45 am]
BILLING CODE 4910-13-P
