Airworthiness Directives; Air Tractor, Inc. Models AT-400, AT-500, AT-600, and AT-800 Series Airplanes, 67687-67690 [E7-23229]
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Federal Register / Vol. 72, No. 230 / Friday, November 30, 2007 / Proposed Rules
challenge and the alternate order of
removal entered pursuant to paragraph
(d) shall immediately take effect. The
Board shall advise the alien of the
condition provided in this paragraph in
writing as part of an order reinstating
the immigration judge’s grant of
voluntary departure. The automatic
termination of a grant of voluntary
departure and the effectiveness of the
alternative order of removal shall not
affect, in any way, the date that the
order of the immigration judge or the
Board became administratively final, as
determined under the provisions of the
applicable regulations in this chapter.
Since the grant of voluntary departure is
terminated by the filing of the petition
for review, the alien will be subject to
the alternate order of removal, but the
penalties for failure to depart
voluntarily under section 240B(d) of the
Act shall not apply to an alien who files
a petition for review, and who remains
in the United States while the petition
for review is pending.
(j) Penalty for failure to depart. The
civil penalty for failure to depart,
pursuant to section 240B(d)(1)(A) of the
Act, shall be set at $3,000 unless the
immigration judge specifically orders a
higher amount at the time of granting
voluntary departure. The immigration
judge shall advise the alien of the
amount of this civil penalty at the time
of granting voluntary departure.
*
*
*
*
*
PART 1241—APPREHENSION AND
DETENTION OF ALIENS ORDERED
REMOVED
4. The authority citation for part 1241
continues to read as follows:
Authority: 5 U.S.C. 301, 552, 552a; 8 U.S.C.
1103, 1182, 1223, 1224, 1225, 1226, 227,
1231, 1251, 1253, 1255, 1330, 1362; 18 U.S.C.
4002, 4013(c)(4).
5. Section 1241.1 is amended by
revising paragraph (f), to read as
follows:
§ 1241.1
Final order of removal.
rwilkins on PROD1PC63 with PROPOSALS-1
*
*
*
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(f) If an immigration judge issues an
alternate order of removal in connection
with a grant of voluntary departure,
upon overstay of the voluntary
departure period except as provided in
the following sentence, or upon the
failure to post a required voluntary
departure bond if the respondent has
waived appeal. If the respondent has
filed a timely appeal with the Board, the
order shall become final upon an order
of removal by the Board or the Attorney
General, or upon overstay of the
voluntary departure period granted or
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reinstated by the Board or the Attorney
General.
Dated: November 27, 2007.
Michael B. Mukasey,
Attorney General.
[FR Doc. E7–23289 Filed 11–29–07; 8:45 am]
BILLING CODE 4410–30–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2007–0258; Directorate
Identifier 2007–CE–090–AD]
RIN 2120–AA64
Airworthiness Directives; Air Tractor,
Inc. Models AT–400, AT–500, AT–600,
and AT–800 Series Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to supersede
Airworthiness Directive (AD) 2007–13–
17, which applies to all Air Tractor, Inc.
(Air Tractor) Models AT–602, AT–802,
and AT–802A airplanes. AD 2007–13–
17 currently requires you to repetitively
inspect the engine mount for any cracks,
repair or replace any cracked engine
mount, and report any cracks found to
the FAA. Since we issued AD 2007–13–
17, Air Tractor has learned of a Model
AT–502B with a crack located where the
lower engine mount tube is welded to
the engine mount ring. In addition,
Snow Engineering Co. has developed
gussets that, when installed according to
their service letter, terminate the
repetitive inspection requirement.
Consequently, this proposed AD would
retain the inspection actions of AD
2007–13–17 for Model AT–602, AT–
802, and AT–802A airplanes, including
the compliance times and effective
dates; establish new inspection actions
for the AT–400 and AT–500 series
airplanes; incorporate a mandatory
terminating action for all airplanes; and
terminate the reporting requirement of
AD 2007–13–17. We are proposing this
AD to detect and correct cracks in the
engine mount, which could result in
failure of the engine mount. Such failure
could lead to separation of the engine
from the airplane.
DATES: We must receive comments on
this proposed AD by January 29, 2008.
ADDRESSES: Use one of the following
addresses to comment on this proposed
AD:
SUMMARY:
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67687
• 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
W12–140, 1200 New Jersey Avenue, SE.,
Washington, DC 20590, between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays.
For service information identified in
this proposed AD, contact Air Tractor
Inc., P.O. Box 485, Olney, Texas 76374;
telephone: (940) 564–5616; fax: (940)
564–5612.
FOR FURTHER INFORMATION CONTACT:
Andy McAnaul, Aerospace Engineer,
ASW–150, FAA San Antonio MIDO–43,
10100 Reunion Pl, San Antonio, Texas
78216; phone: (210) 308–3365; fax: (210)
308–3370.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written
relevant data, views, or arguments
regarding this proposed AD. Send your
comments to an address listed under the
ADDRESSES section. Include the docket
number, ‘‘FAA–2007–0258; Directorate
Identifier 2007–CE–090–AD’’ at the
beginning of your comments. We
specifically invite comments on the
overall regulatory, economic,
environmental, and energy aspects of
the proposed AD. We will consider all
comments received by the closing date
and may amend the proposed AD in
light of 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
concerning this proposed AD.
Discussion
Two reports of Model AT–802A
airplanes with cracked engine mounts
(at 2,815 hours time-in-service (TIS) and
1,900 hours TIS) caused us to issue AD
2007–13–17, Amendment 39–15121 (72
FR 36863, July 6, 2007). AD 2007–13–
17 currently requires the following on
all Air Tractor Models AT–602, AT–802,
and AT–802A airplanes:
• Inspect (initially and repetitively)
the engine mount for any cracks;
• Repair or replace any cracked
engine mount; and
• Report any cracks found to the
FAA.
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Federal Register / Vol. 72, No. 230 / Friday, November 30, 2007 / Proposed Rules
Since we issued AD 2007–13–17, Air
Tractor notified the FAA of a Model
AT–502B airplane with a crack located
where the lower engine mount tube is
welded to the engine mount ring. The
airplane had 8,436 total hours TIS. The
cracking is similar to what prompted us
to issue AD 2007–13–17.
The Model AT–502B engine mount is
the same design used in the Models AT–
400, AT–400A, AT–402, AT–402A, AT–
402B, AT–502, and AT–503A airplanes.
The Model AT–502A airplane uses the
same engine mount design as the
airplanes affected by AD 2007–13–17.
Therefore, we determined that these
airplane models should be subject to the
actions of AD 2007–13–17.
Currently, the FAA is aware of the
following airplanes that have had
cracked engine mounts:
• 1 Model AT–502B;
• 3 Model AT–602; and
• 11 Model AT–802/802A.
This condition, if not corrected, could
result in failure of the engine mount.
Such failure could lead to separation of
the engine from the airplane.
In addition, Snow Engineering Co.
developed gussets for an FAA-approved
repair scheme to AD 2007–13–17. Snow
Engineering Co. tested the engine mount
with the gussets installed; and based on
their test data, which has been approved
by the FAA, installation of the gussets
terminates the repetitive inspection
requirement.
Relevant Service Information
We have reviewed Snow Engineering
Co. Service Letter #253 Rev. A, dated
October 16, 2007.
The service information describes
procedures for:
• Performing a visual inspection of
the engine mount for cracks;
• Repairing the engine mount if
cracks are found; and
• Adding gussets to reinforce the
engine mount and terminate the
inspection requirement.
FAA’s Determination and Requirements
of the Proposed AD
We are proposing this AD because we
evaluated all information and
determined the unsafe condition
described previously is likely to exist or
develop on other products of the same
type design. This proposed AD would
supersede AD 2007–13–17 with a new
AD that would retain the inspection
actions of AD 2007–13–17 for Models
AT–602, AT–802, and AT–802A
airplanes, including the compliance
times and effective dates; establish new
inspection actions for the AT–400 and
AT–500 series airplanes; incorporate a
mandatory terminating action for all
airplanes; and terminate the reporting
requirement of AD 2007–13–17. This
proposed AD would require you to use
the service information described
previously to perform these actions.
Costs of Compliance
We estimate that this proposed AD
would affect 1,264 airplanes in the U.S.
registry, including those airplanes
affected by AD 2007–13–17.
We estimate the following costs to do
the proposed inspection:
Labor cost
Parts cost
Total cost per
airplane
Total cost on
U.S. operators
1.5 work-hours × $80 per hour = $120 .......................................................................................
$0
$120
$151,680
Labor cost
Parts cost
Total cost per
airplane
Total cost on
U.S. operators
24 work-hours × $80 per hour = $1,920 .....................................................................................
$80
$2,000
$2,528,000
We estimate the following costs to do
the repair/modification:
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.
Authority for This Rulemaking
rwilkins on PROD1PC63 with PROPOSALS-1
The estimated total cost on U.S.
operators includes the cumulative costs
associated with AD 2007–13–17 and
those airplanes and actions being added
in this AD.
Regulatory Findings
We have 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 that the 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,
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
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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 proposed AD and placed it in the
AD docket.
Examining the AD Docket
You may examine the AD docket that
contains the proposed AD, the
regulatory evaluation, any comments
received, and other information 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 Docket Office (telephone
(800) 647–5527) is located at the street
address stated 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, Safety.
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Federal Register / Vol. 72, No. 230 / Friday, November 30, 2007 / Proposed Rules
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
§ 39.13
Comments Due Date
[Amended]
2. The FAA amends § 39.13 by
removing Airworthiness Directive (AD)
2007–13–17, Amendment 39–15121 (72
FR 36863, July 6, 2007), and adding the
following new AD:
Air Tractor, Inc.: Docket No. FAA–2007–
0258; Directorate Identifier 2007–CE–
090–AD.
1. The authority citation for part 39
continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
(a) We must receive comments on this
airworthiness directive (AD) action by
January 29, 2008.
Affected ADs
(b) This AD supersedes AD 2007–13–17,
Amendment 39–15121.
Applicability
(c) This AD applies to the following
airplane models and serial numbers that are
certificated in any category:
Model
Serial numbers
AT–400, AT–400A, AT–402, AT–402A, and AT–402B .............................................................................................................
AT–502, AT–502A, AT–502B, and AT–503A ...........................................................................................................................
AT–602 ......................................................................................................................................................................................
AT–802 and AT–802A ...............................................................................................................................................................
Unsafe Condition
(d) This AD results from a report of a
Model AT–502B airplane with a crack
located where the lower engine mount tube
is welded to the engine mount ring. The
airplane had 8,436 total hours time-in-service
(TIS). We are issuing this AD to detect and
correct cracks in the engine mount, which
could result in failure of the engine mount.
Such failure could lead to separation of the
engine from the airplane.
Compliance
(e) To address this problem, you must do
the following, unless already done:
–0001 through
–1175.
–0001 through
–2597.
–0001 through
–1141.
–0001 through
–0227.
(1) For all airplanes with less than 5,000
hours total TIS that do not have gussets
installed on the engine mount in accordance
with Snow Engineering Co. Service Letter
#253 Rev. A, dated October 16, 2007:
Visually inspect the engine mount as follows:
Affected airplanes
Compliance
Procedures
(i) For all Models AT–602, AT–802, and AT–
802A airplanes.
Initially before the airplane reaches a total of
1,300 hours TIS or within the next 100
hours TIS after August 10, 2007 (the effective date of AD 2007–13–17), whichever occurs later. Repetitively thereafter at intervals
not to exceed 300 hours TIS.
Initially before the airplane reaches a total of
1,300 hours TIS or within the next 100
hours TIS after the effective date of this
AD, whichever occurs later. Repetitively
thereafter at intervals not to exceed 300
hours TIS.
Initially within the next 12 months after the effective date of this AD. Repetitively thereafter at intervals not to exceed 12 months.
Follow Snow Engineering Co. Service Letter
#253 Rev. A, dated October 16, 2007, or
Snow Engineering Co. Service Letter #253,
revised January 22, 2007.
(ii) For all Model AT–502A airplanes .................
rwilkins on PROD1PC63 with PROPOSALS-1
(iii) For all Models AT–400, AT–400A, AT–402,
AT–402A, AT–402B, AT–502, AT–502B, and
AT–503A airplanes.
(2) For all airplanes: Before further flight
after any inspection required by paragraph
(e)(1) of this AD where crack damage is
found, repair and modify the engine mount
by installing gussets following Snow
Engineering Co. Service Letter #253 Rev. A,
dated October 16, 2007. This modification
terminates the repetitive inspections required
in paragraphs (e)(1)(i), (e)(1)(ii), and (e)(1)(iii)
of this AD.
(3) For all airplanes: Before the airplane
reaches 5,000 hours total TIS after the
effective date of this AD or within the next
100 hours TIS after the effective date of this
AD, whichever occurs later; inspect, repair if
cracked, and modify the engine mount by
installing gussets following Snow
Engineering Co. Service Letter #253 Rev. A,
dated October 16, 2007. This modification
terminates the repetitive inspections required
VerDate Aug<31>2005
16:31 Nov 29, 2007
Jkt 214001
in paragraphs (e)(1)(i), (e)(1)(ii), and (e)(1)(iii)
of this AD.
Note: As a terminating action to the
repetitive inspections required in paragraphs
(e)(1)(i), (e)(1)(ii), and (e)(1)(iii) of this AD,
you may install the gussets before finding
cracks or reaching 5,000 hours total TIS.
Alternative Methods of Compliance
(AMOCs)
(f) The Manager, Forth Worth Aircraft
Certification Office, 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: Andy McAnaul,
Aerospace Engineer, ASW–150, FAA San
Antonio MIDO–43, 10100 Reunion Pl, San
Antonio, Texas 78216; phone: (210) 308–
3365; fax: (210) 308–3370. Before using any
approved AMOC on any airplane to which
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Follow Snow Engineering Co. Service Letter
#253 Rev. A, dated October 16, 2007.
Follow Snow Engineering Co. Service Letter
#253 Rev. A, dated October 16, 2007.
the AMOC applies, notify your appropriate
principal inspector (PI) in the FAA Flight
Standards District Office (FSDO), or lacking
a PI, your local FSDO.
Related Information
(g) To get copies of the service information
referenced in this AD, contact Air Tractor
Inc., P.O. Box 485, Olney, Texas 76374;
telephone: (940) 564–5616; fax: (940) 564–
5612. To view the AD docket, go to U.S.
Department of Transportation, Docket
Operations, M–30, West Building Ground
Floor, Room W12–140, 1200 New Jersey
Avenue, SE., Washington, DC 20590, or on
the Internet at https://www.regulations.gov.
The docket number is Docket No. FAA–
2007–0258; Directorate Identifier 2007–CE–
090–AD.
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67690
Federal Register / Vol. 72, No. 230 / Friday, November 30, 2007 / Proposed Rules
Issued in Kansas City, Missouri, on
November 23, 2007.
Steven W. Thompson,
Acting Manager, Small Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E7–23229 Filed 11–29–07; 8:45 am]
and the communities affected for Tulsa
County, Oklahoma, and Incorporated
Areas; specifically, for flooding sources
‘‘Horsepen Creek Tributary B’’ and
‘‘Horsepen Creek Tributary B
Tributary,’’ that was previously
published.
BILLING CODE 4910–13–P
Comments to be submitted on or
before January 31, 2008.
FOR FURTHER INFORMATION CONTACT:
William R. Blanton, Jr., Engineering
Management Branch, Mitigation
Directorate, Federal Emergency
Management Agency, 500 C Street, SW.,
Washington, DC 20472, (202) 646–2903.
SUPPLEMENTARY INFORMATION: The
Federal Emergency Management Agency
(FEMA) publishes proposed
determinations of Base (1-percentannual-chance) Flood Elevations (BFEs)
and modified BFEs for communities
participating in the National Flood
Insurance Program (NFIP), in
accordance with section 110 of the
Flood Disaster Protection Act of 1973,
42 U.S.C. 4104, and 44 CFR 67.4(a).
These proposed BFEs and modified
BFEs, together with the floodplain
management criteria required by 44 CFR
60.3, are the minimum that are required.
They should not be construed to mean
DATES:
DEPARTMENT OF HOMELAND
SECURITY
Federal Emergency Management
Agency
44 CFR Part 67
[Docket No. FEMA–B–7744]
Proposed Flood Elevation
Determinations; Correction
Federal Emergency
Management Agency, DHS.
ACTION: Proposed rule; correction.
AGENCY:
SUMMARY: This document corrects the
table to a proposed rule published in the
Federal Register of November 2, 2007.
This correction clarifies the table
representing the flooding source(s),
location of referenced elevation, the
effective and modified elevation in feet
Flooding source(s)
that the community must change any
existing ordinances that are more
stringent in their floodplain
management requirements. The
community may at any time enact
stricter requirements of its own, or
pursuant to policies established by other
Federal, State, or regional entities.
These proposed BFEs are used to meet
the floodplain management
requirements of the NFIP and are also
used to calculate the appropriate flood
insurance premium rates for new
buildings built after these elevations are
made final, and for the contents in these
buildings.
Correction
In proposed rule FR Doc. E7–21595,
beginning on page 62182 in the issue of
November 2, 2007, make the following
corrections, in the table published
under the authority of 44 CFR 67.4. On
page 62182, in § 67.4, in the table with
center heading Tulsa County,
Oklahoma, and Incorporated Areas, the
flooding source(s), location of
referenced elevation, the effective and
modified elevation in feet and the
communities affected for flooding
source ‘‘Horsepen Creek Tributary B’’,
needs to be corrected to read as follows:
*Elevation in feet
(NGVD) +Elevation in
feet (NAVD) # Depth
in feet above ground
Location of referenced elevation**
Effective
*
*
*
*
Communities affected
Modified
*
*
*
Tulsa County, Oklahoma, and Incorporated Areas
*
Horsepen Creek Tributary B
*
*
*
Confluence with Horsepen Creek ......................................
*
None ......
+642
Approximately 370 ft upstream of confluence with Horsepen Creek Tributary B Tributary.
Confluence with Horsepen Creek Tributary B ...................
None ......
+644
None ......
+643
Approximately 2800 ft upstream of confluence with
Horsepen Creek Tributary B.
*
*
*
None ......
+650
Horsepen Creek Tributary B
Tributary.
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Unincorporated Areas of
Tulsa County.
Unincorporated Areas of
Tulsa County.
*
]]>Agencies
[Federal Register Volume 72, Number 230 (Friday, November 30, 2007)]
[Proposed Rules]
[Pages 67687-67690]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-23229]
=======================================================================
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2007-0258; Directorate Identifier 2007-CE-090-AD]
RIN 2120-AA64
Airworthiness Directives; Air Tractor, Inc. Models AT-400, AT-
500, AT-600, and AT-800 Series Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: We propose to supersede Airworthiness Directive (AD) 2007-13-
17, which applies to all Air Tractor, Inc. (Air Tractor) Models AT-602,
AT-802, and AT-802A airplanes. AD 2007-13-17 currently requires you to
repetitively inspect the engine mount for any cracks, repair or replace
any cracked engine mount, and report any cracks found to the FAA. Since
we issued AD 2007-13-17, Air Tractor has learned of a Model AT-502B
with a crack located where the lower engine mount tube is welded to the
engine mount ring. In addition, Snow Engineering Co. has developed
gussets that, when installed according to their service letter,
terminate the repetitive inspection requirement. Consequently, this
proposed AD would retain the inspection actions of AD 2007-13-17 for
Model AT-602, AT-802, and AT-802A airplanes, including the compliance
times and effective dates; establish new inspection actions for the AT-
400 and AT-500 series airplanes; incorporate a mandatory terminating
action for all airplanes; and terminate the reporting requirement of AD
2007-13-17. We are proposing this AD to detect and correct cracks in
the engine mount, which could result in failure of the engine mount.
Such failure could lead to separation of the engine from the airplane.
DATES: We must receive comments on this proposed AD by January 29,
2008.
ADDRESSES: Use one of the following addresses to comment on this
proposed AD:
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 W12-140, 1200 New
Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays.
For service information identified in this proposed AD, contact Air
Tractor Inc., P.O. Box 485, Olney, Texas 76374; telephone: (940) 564-
5616; fax: (940) 564-5612.
FOR FURTHER INFORMATION CONTACT: Andy McAnaul, Aerospace Engineer, ASW-
150, FAA San Antonio MIDO-43, 10100 Reunion Pl, San Antonio, Texas
78216; phone: (210) 308-3365; fax: (210) 308-3370.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written relevant data, views, or
arguments regarding this proposed AD. Send your comments to an address
listed under the ADDRESSES section. Include the docket number, ``FAA-
2007-0258; Directorate Identifier 2007-CE-090-AD'' at the beginning of
your comments. We specifically invite comments on the overall
regulatory, economic, environmental, and energy aspects of the proposed
AD. We will consider all comments received by the closing date and may
amend the proposed AD in light of 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 concerning this proposed AD.
Discussion
Two reports of Model AT-802A airplanes with cracked engine mounts
(at 2,815 hours time-in-service (TIS) and 1,900 hours TIS) caused us to
issue AD 2007-13-17, Amendment 39-15121 (72 FR 36863, July 6, 2007). AD
2007-13-17 currently requires the following on all Air Tractor Models
AT-602, AT-802, and AT-802A airplanes:
Inspect (initially and repetitively) the engine mount for
any cracks;
Repair or replace any cracked engine mount; and
Report any cracks found to the FAA.
[[Page 67688]]
Since we issued AD 2007-13-17, Air Tractor notified the FAA of a
Model AT-502B airplane with a crack located where the lower engine
mount tube is welded to the engine mount ring. The airplane had 8,436
total hours TIS. The cracking is similar to what prompted us to issue
AD 2007-13-17.
The Model AT-502B engine mount is the same design used in the
Models AT-400, AT-400A, AT-402, AT-402A, AT-402B, AT-502, and AT-503A
airplanes. The Model AT-502A airplane uses the same engine mount design
as the airplanes affected by AD 2007-13-17. Therefore, we determined
that these airplane models should be subject to the actions of AD 2007-
13-17.
Currently, the FAA is aware of the following airplanes that have
had cracked engine mounts:
1 Model AT-502B;
3 Model AT-602; and
11 Model AT-802/802A.
This condition, if not corrected, could result in failure of the
engine mount. Such failure could lead to separation of the engine from
the airplane.
In addition, Snow Engineering Co. developed gussets for an FAA-
approved repair scheme to AD 2007-13-17. Snow Engineering Co. tested
the engine mount with the gussets installed; and based on their test
data, which has been approved by the FAA, installation of the gussets
terminates the repetitive inspection requirement.
Relevant Service Information
We have reviewed Snow Engineering Co. Service Letter 253
Rev. A, dated October 16, 2007.
The service information describes procedures for:
Performing a visual inspection of the engine mount for
cracks;
Repairing the engine mount if cracks are found; and
Adding gussets to reinforce the engine mount and terminate
the inspection requirement.
FAA's Determination and Requirements of the Proposed AD
We are proposing this AD because we evaluated all information and
determined the unsafe condition described previously is likely to exist
or develop on other products of the same type design. This proposed AD
would supersede AD 2007-13-17 with a new AD that would retain the
inspection actions of AD 2007-13-17 for Models AT-602, AT-802, and AT-
802A airplanes, including the compliance times and effective dates;
establish new inspection actions for the AT-400 and AT-500 series
airplanes; incorporate a mandatory terminating action for all
airplanes; and terminate the reporting requirement of AD 2007-13-17.
This proposed AD would require you to use the service information
described previously to perform these actions.
Costs of Compliance
We estimate that this proposed AD would affect 1,264 airplanes in
the U.S. registry, including those airplanes affected by AD 2007-13-17.
We estimate the following costs to do the proposed inspection:
----------------------------------------------------------------------------------------------------------------
Total cost per Total cost on
Labor cost Parts cost airplane U.S. operators
----------------------------------------------------------------------------------------------------------------
1.5 work-hours x $80 per hour = $120......................... $0 $120 $151,680
----------------------------------------------------------------------------------------------------------------
We estimate the following costs to do the repair/modification:
----------------------------------------------------------------------------------------------------------------
Total cost per Total cost on
Labor cost Parts cost airplane U.S. operators
----------------------------------------------------------------------------------------------------------------
24 work-hours x $80 per hour = $1,920........................ $80 $2,000 $2,528,000
----------------------------------------------------------------------------------------------------------------
The estimated total cost on U.S. operators includes the cumulative
costs associated with AD 2007-13-17 and those airplanes and actions
being added in this AD.
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, Section 106, describes the
authority of the FAA Administrator. Subtitle VII, Aviation Programs,
describes in more detail the scope of the Agency's authority.
We are issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701, ``General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.
Regulatory Findings
We have determined that this 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 that the 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 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.
Examining the AD Docket
You may examine the AD docket that contains the proposed AD, the
regulatory evaluation, any comments received, and other information 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 Docket Office (telephone (800) 647-5527)
is located at the street address stated 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, Safety.
[[Page 67689]]
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 removing Airworthiness Directive
(AD) 2007-13-17, Amendment 39-15121 (72 FR 36863, July 6, 2007), and
adding the following new AD:
Air Tractor, Inc.: Docket No. FAA-2007-0258; Directorate Identifier
2007-CE-090-AD.
Comments Due Date
(a) We must receive comments on this airworthiness directive
(AD) action by January 29, 2008.
Affected ADs
(b) This AD supersedes AD 2007-13-17, Amendment 39-15121.
Applicability
(c) This AD applies to the following airplane models and serial
numbers that are certificated in any category:
------------------------------------------------------------------------
Model Serial numbers
------------------------------------------------------------------------
AT-400, AT-400A, AT-402, AT-402A, and -0001 through -1175.
AT-402B.
AT-502, AT-502A, AT-502B, and AT-503A -0001 through -2597.
AT-602............................... -0001 through -1141.
AT-802 and AT-802A................... -0001 through -0227.
------------------------------------------------------------------------
Unsafe Condition
(d) This AD results from a report of a Model AT-502B airplane
with a crack located where the lower engine mount tube is welded to
the engine mount ring. The airplane had 8,436 total hours time-in-
service (TIS). We are issuing this AD to detect and correct cracks
in the engine mount, which could result in failure of the engine
mount. Such failure could lead to separation of the engine from the
airplane.
Compliance
(e) To address this problem, you must do the following, unless
already done:
(1) For all airplanes with less than 5,000 hours total TIS that
do not have gussets installed on the engine mount in accordance with
Snow Engineering Co. Service Letter #253 Rev. A, dated October 16,
2007: Visually inspect the engine mount as follows:
------------------------------------------------------------------------
Affected airplanes Compliance Procedures
------------------------------------------------------------------------
(i) For all Models AT-602, Initially before the Follow Snow
AT-802, and AT-802A airplane reaches a Engineering Co.
airplanes. total of 1,300 Service Letter
hours TIS or within 253 Rev.
the next 100 hours A, dated October
TIS after August 16, 2007, or Snow
10, 2007 (the Engineering Co.
effective date of Service Letter
AD 2007-13-17), 253,
whichever occurs revised January 22,
later. Repetitively 2007.
thereafter at
intervals not to
exceed 300 hours
TIS.
(ii) For all Model AT-502A Initially before the Follow Snow
airplanes. airplane reaches a Engineering Co.
total of 1,300 Service Letter
hours TIS or within 253 Rev.
the next 100 hours A, dated October
TIS after the 16, 2007.
effective date of
this AD, whichever
occurs later.
Repetitively
thereafter at
intervals not to
exceed 300 hours
TIS.
(iii) For all Models AT-400, Initially within the Follow Snow
AT-400A, AT-402, AT-402A, next 12 months Engineering Co.
AT-402B, AT-502, AT-502B, after the effective Service Letter
and AT-503A airplanes. date of this AD. 253 Rev.
Repetitively A, dated October
thereafter at 16, 2007.
intervals not to
exceed 12 months.
------------------------------------------------------------------------
(2) For all airplanes: Before further flight after any
inspection required by paragraph (e)(1) of this AD where crack
damage is found, repair and modify the engine mount by installing
gussets following Snow Engineering Co. Service Letter 253
Rev. A, dated October 16, 2007. This modification terminates the
repetitive inspections required in paragraphs (e)(1)(i), (e)(1)(ii),
and (e)(1)(iii) of this AD.
(3) For all airplanes: Before the airplane reaches 5,000 hours
total TIS after the effective date of this AD or within the next 100
hours TIS after the effective date of this AD, whichever occurs
later; inspect, repair if cracked, and modify the engine mount by
installing gussets following Snow Engineering Co. Service Letter
253 Rev. A, dated October 16, 2007. This modification
terminates the repetitive inspections required in paragraphs
(e)(1)(i), (e)(1)(ii), and (e)(1)(iii) of this AD.
Note: As a terminating action to the repetitive inspections
required in paragraphs (e)(1)(i), (e)(1)(ii), and (e)(1)(iii) of
this AD, you may install the gussets before finding cracks or
reaching 5,000 hours total TIS.
Alternative Methods of Compliance (AMOCs)
(f) The Manager, Forth Worth Aircraft Certification Office, 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: Andy
McAnaul, Aerospace Engineer, ASW-150, FAA San Antonio MIDO-43, 10100
Reunion Pl, San Antonio, Texas 78216; phone: (210) 308-3365; fax:
(210) 308-3370. 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.
Related Information
(g) To get copies of the service information referenced in this
AD, contact Air Tractor Inc., P.O. Box 485, Olney, Texas 76374;
telephone: (940) 564-5616; fax: (940) 564-5612. To view the AD
docket, go to U.S. Department of Transportation, Docket Operations,
M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey
Avenue, SE., Washington, DC 20590, or on the Internet at https://
www.regulations.gov. The docket number is Docket No. FAA-2007-0258;
Directorate Identifier 2007-CE-090-AD.
[[Page 67690]]
Issued in Kansas City, Missouri, on November 23, 2007.
Steven W. Thompson,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E7-23229 Filed 11-29-07; 8:45 am]
BILLING CODE 4910-13-P
