Airworthiness Directives; Air Tractor, Inc. Models AT-802 and AT-802A Airplanes, 57405-57407 [E6-15819]
Download as PDF
Federal Register / Vol. 71, No. 189 / Friday, September 29, 2006 / Rules and Regulations
to: https://www.archives.gov/federal-register/
cfr/ibr-locations.html.
Francis A. Favara,
Manager, Engine and Propeller Directorate,
Aircraft Certification Service.
[FR Doc. 06–8284 Filed 9–28–06; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2006–24710; Directorate
Identifier 2006–CE–29–AD; Amendment 39–
14779; AD 2006–20–10]
RIN 2120–AA64
Airworthiness Directives; Air Tractor,
Inc. Models AT–802 and AT–802A
Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
SUMMARY: We are adopting a new
airworthiness directive (AD) for certain
Air Tractor, Inc. (Air Tractor) Models
AT–802 and AT–802A airplanes. This
AD requires you to repetitively inspect
the attach angles on the firewall
mounted hopper rinse tank shelf for
damage and/or cracks and replace
damaged and/or cracked attach angles
with steel attach angles. Replacing the
attach angles with steel attach angles
terminates the repetitive inspection
requirement. Reports of an
uncommanded change in the engine
power setting caused by separation of
the hopper rinse tank shelf from the
firewall prompted this AD. We are
issuing this AD to detect and correct
damage and/or cracks in the attach
angles on the firewall mounted hopper
rinse tank shelf, which could result in
failure of the attach angles. This failure
could lead to shelf movement under
maneuver load and shifting of the
engine power cables, which could result
in an uncommanded engine power
setting change.
DATES: This AD becomes effective on
November 3, 2006.
As of November 3, 2006, the Director
of the Federal Register approved the
incorporation by reference of certain
publications listed in the regulation.
ADDRESSES: For service information
identified 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 the
Docket Management Facility, U.S.
Department of Transportation, 400
Seventh Street, SW., Nassif Building,
Room PL–401, Washington, DC 20590–
001 or on the internet at https://
dms.dot.gov. The docket number is
FAA–2006–24710; Directorate Identifier
2006–CE–29–AD.
FOR FURTHER INFORMATION CONTACT:
Andrew McAnaul, Aerospace Engineer,
ASW–150 (c/o MIDO–43), 10100
Reunion Place, Suite 650, San Antonio,
Texas 78216; telephone: (210) 308–
3365; fax: (210) 308–3370.
SUPPLEMENTARY INFORMATION:
Discussion
On June 13, 2006, we issued a
proposal to amend part 39 of the Federal
Aviation Regulations (14 CFR part 39) to
include an AD that would apply to
certain Air Tractor Models AT–802 and
AT–802A airplanes. This proposal was
published in the Federal Register as a
notice of proposed rulemaking (NPRM)
on June 20, 2006 (71 FR 35398). The
NPRM proposed to require you to
repetitively inspect the attach angles on
the firewall mounted hopper rinse tank
shelf for damage and/or cracks and
replace damaged and/or cracked attach
angles. Replacing the attach angles with
steel attach angles, part number 60568–
3, would terminate the proposed
repetitive inspection requirement.
Comments
We provided the public the
opportunity to participate in developing
this AD. We received one comment from
Carroll Communications. The comment
is in reference to wind turbine radar
interference.
We determined the comment is not
relevant to this AD. We are not changing
the final rule AD action based on the
comment.
Conclusion
We have carefully reviewed the
available data and determined that air
safety and the public interest require
adopting the AD as proposed except for
minor editorial corrections. We have
determined that these minor
corrections:
• Are consistent with the intent that
was proposed in the NPRM for
correcting the unsafe condition; and
• Do not add any additional burden
upon the public than was already
proposed in the NPRM.
Costs of Compliance
We estimate that this AD affects 219
airplanes in the U.S. registry.
We estimate the following costs to do
the inspection:
Total cost per
airplane
Labor cost
Parts cost
1 work-hour × $80 an hour = $80 .......................
Not applicable ......................................................
We estimate the following costs to do
any necessary replacements that will be
required based on the results of the
inspection. We have no way of
Labor cost
sroberts on PROD1PC70 with RULES
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
VerDate Aug<31>2005
17:25 Sep 28, 2006
Jkt 208001
Parts cost
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
PO 00000
$80
Frm 00023
Fmt 4700
Sfmt 4700
Total cost on U.S.
operators
$80 × 219 = $17,520.
determining the number of airplanes
that may need this replacement:
3 work-hours × $80 an hour = $240 ............................................................................................
Authority for This Rulemaking
57405
$105
Total cost for each airplane
$240 + $105 = $345.
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 AD.
E:\FR\FM\29SER1.SGM
29SER1
57406
Federal Register / Vol. 71, No. 189 / Friday, September 29, 2006 / Rules and Regulations
Regulatory Findings
We have 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 that 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 summary of the costs
to comply with this AD (and other
information as included in the
Regulatory Evaluation) and placed it in
the AD Docket.
You may get a copy of this summary
by sending a request to us at the address
listed under ADDRESSES. Include
‘‘Docket No. FAA–2006–24710;
Directorate Identifier 2006-CE–29-AD’’
in your request.
Effective Date
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
(b) None.
(a) This AD becomes effective on
November 3, 2006.
Affected ADs
Applicability
Adoption of the Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the Federal Aviation Administration
amends part 39 of the Federal Aviation
Regulations (14 CFR part 39) as follows:
(c) This AD applies to Models AT–802 and
AT–802A airplanes, all serial numbers
beginning with 802/802A–0001 through 802/
802A–0219, that are certificated in any
category.
Unsafe Condition
I
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
I
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. FAA amends § 39.13 by adding the
following new AD:
I
2006–20–10 Air Tractor, Inc.: Amendment
39–14779; Docket No. FAA–2006–24710;
Directorate Identifier 2006–CE–29–AD.
(d) This AD results from reports of an
uncommanded change in engine power
setting caused by separation of a hopper rinse
tank shelf from the firewall. We are issuing
this AD to detect and correct damage and/or
cracks in the attach angles on the firewall
mounted hopper rinse tank shelf, which
could result in failure of the attach angles.
This failure could lead to shelf movement
under maneuver load and shifting of the
engine power cables, which could result in
an uncommanded engine power setting
change.
Compliance
(e) To address this problem, you must do
the following, unless already done:
Actions
Compliance
Procedures
(1) Visually inspect the three attach angles on the firewall mounted hopper rinse tank shelf for damage and/
or cracks.
Initially inspect within the next 100 hours time-in-service
(TIS) after November 3, 2006 (the effective date of
this AD). If no damage and/or cracks are found, repetitively inspect thereafter at intervals not to exceed
100 hours TIS. Replacing all three attach angles with
steel attach angles, part number (P/N) 60568–3 (or
FAA-approved equivalent P/N), terminates the repetitive inspection requirement of this AD.
Before further flight after the inspection in which damage and/or cracks are found. Replacing all three attach angles with steel attach angles, P/N 60568–3
(or FAA-approved equivalent P/N), terminates the repetitive inspection requirement of paragraph (e)(1) of
this AD.
As of November 3, 2006 (the effective date of this AD)
Follow Snow Engineering
Co. Service Letter #248,
dated August 31, 2005.
(2) If you find any damage and/or cracks on any of the
three attach angles during any inspection required in
paragraph (e)(1) of this AD, replace all three attach
angles with steel attach angles, P/N 60568–3 (or FAAapproved equivalent P/N).
sroberts on PROD1PC70 with RULES
(3) You may replace the aluminum attach angles on the
firewall mounted hopper rinse tank shelf with steel attach angles, P/N 60568–3 (or FAA-approved equivalent P/N), at any time to terminate the repetitive inspections required in paragraph (e)(1) of this AD.
(4) Do not install aluminum attach angles on the hopper
rinse tank shelf attach angles.
(f) 14 CFR 21.303 allows for replacement
parts through parts manufacturer approval
(PMA). The phrase ‘‘or FAA-approved
equivalent P/N’’ in this AD is intended to
allow for the installation of parts approved
through identicality to the design of the
replacement parts. Equivalent replacement
parts to correct the unsafe condition under
PMA (other than identicality) may also be
installed provided they meet current
airworthiness standards, which include those
actions cited in this AD.
As of November 3, 2006 (the effective date of this AD)
Alternative Methods of Compliance
(AMOCs)
(g) The Manager, Fort Worth Airplane
Certification Office, FAA, ATTN: Andrew
McAnaul, Aerospace Engineer, ASW–150
(c/o MIDO–43), 10100 Reunion Place, Suite
650, San Antonio, Texas 78216; telephone:
(210) 308–3365; fax: (210) 308–3370, has the
authority to approve AMOCs for this AD, if
requested using the procedures found in 14
CFR 39.19.
Material Incorporated by Reference
(h) You must do the actions required by
this AD following the instructions in Snow
Engineering Co. Service Letter #248, dated
VerDate Aug<31>2005
17:25 Sep 28, 2006
Jkt 208001
PO 00000
Frm 00024
Fmt 4700
Sfmt 4700
Follow Snow Engineering
Co. Service Letter #248,
dated August 31, 2005.
Follow Snow Engineering
Co. Service Letter #248,
dated August 31, 2005.
Not applicable.
August 31, 2005. The Director of the Federal
Register approved the incorporation by
reference of this service bulletin in
accordance with 5 U.S.C. 552(a) and 1 CFR
part 51. To get a copy of this service
information, contact Air Tractor Inc., P.O.
Box 485, Olney, Texas 76374; telephone:
(940) 564–5616; fax: (940) 564–5612. To
review copies of this service information, go
to the National Archives and Records
Administration (NARA). For information on
the availability of this material at NARA, go
to: https://www.archives.gov/federal_register/
code_of_federal_regulations/
ibr_locations.html or call (202) 741–6030. To
view the AD docket, go to the Docket
E:\FR\FM\29SER1.SGM
29SER1
Federal Register / Vol. 71, No. 189 / Friday, September 29, 2006 / Rules and Regulations
Management Facility, U.S. Department of
Transportation, 400 Seventh Street, SW.,
Nassif Building, Room PL–401, Washington,
DC 20590–0001 or on the Internet at https://
dms.dot.gov. The docket number is FAA–
2006–24710; Directorate Identifier 2006–CE–
29–AD.
Issued in Kansas City, Missouri, on
September 18, 2006.
Kim Smith,
Manager, Small Airplane Directorate, Aircraft
Certification Service.
[FR Doc. E6–15819 Filed 9–28–06; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2006–24785; Directorate
Identifier 2006–NE–20–AD; Amendment 39–
14778; AD 2006–20–09]
RIN 2120–AA64
Airworthiness Directives; Lycoming
Engines (L)O–360, (L)IO–360, AEIO–
360, O–540, IO–540, AEIO–540, (L)TIO–
540, IO–580, and IO–720 Series
Reciprocating Engines.
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
sroberts on PROD1PC70 with RULES
AGENCY:
SUMMARY: The FAA is adopting a new
airworthiness directive (AD) for certain
Lycoming Engines (L)O–360, (L)IO–360,
AEIO–360, O–540, IO–540, AEIO–540,
(L)TIO–540, IO–580, and IO–720 series
reciprocating engines. This AD requires
replacing certain crankshafts. This AD
results from reports of 23 confirmed
failures of similar crankshafts in
Lycoming Engines 360 and 540 series
reciprocating engines. We are issuing
this AD to prevent failure of the
crankshaft, which will result in total
engine power loss, in-flight engine
failure, and possible loss of the aircraft.
DATES: This AD becomes effective
November 3, 2006. The Director of the
Federal Register approved the
incorporation by reference of certain
publications listed in the regulations as
of November 3, 2006.
ADDRESSES: You can get the service
information identified in this ad from
Lycoming, 652 Oliver Street,
Williamsport, PA 17701; telephone
(570) 323–6181; fax (570) 327–7101, or
on the internet at
www.Lycoming.Textron.com.
You may examine the AD docket on
the Internet at https://dms.dot.gov or in
Room PL–401 on the plaza level of the
VerDate Aug<31>2005
17:25 Sep 28, 2006
Jkt 208001
57407
Nassif Building, 400 Seventh Street,
SW., Washington, DC.
FOR FURTHER INFORMATION CONTACT:
Norm Perenson, Aerospace Engineer,
New York Aircraft Certification Office,
FAA, Engine & Propeller Directorate,
1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone (516)
228–7337; fax (516) 794–5531.
SUPPLEMENTARY INFORMATION: The FAA
proposed to amend 14 CFR part 39 with
a proposed airworthiness directive (AD).
The proposed AD applies to certain
Lycoming Engines (L)O–360, (L)IO–360,
AEIO–360, O–540, IO–540, AEIO–540,
(L)TIO–540, IO–580, AEIO–580, and IO–
720 series reciprocating engines. We
published the proposed AD in the
Federal Register on May 25, 2006 (71
FR 30078, May 19, 2006). That action
proposed to require replacing certain
crankshafts.
Need To Correct the Table of Engine
Models and Aircraft
Examining the AD Docket
One private citizen states that the 12year overhaul limit referred to in the
proposed rule is not in Lycoming
Engines SI No. 1009AR, as we stated.
We do not agree. The Lycoming
Engines service instruction states that
engines that do not reach the
recommended overhaul hours specified
in that publication should be
overhauled in the twelfth year. We note
that this AD does not require an engine
overhaul. We have incorporated
Lycoming Engines SI No. 1009AS, dated
May 25, 2006, only for the purpose of
providing a maximum time by which
crankshaft replacement must occur, if
the engine has not required earlier
maintenance that involves separating
the crankcase. Therefore, crankshaft
removal must occur at the earliest of
maintenance involving crankcase
separation, the time-in-service specified
in Lycoming Engines SI No. 1009AS for
engine overhaul, or 12 years from the
time the crankshaft first entered service.
For clarification, we have added to the
AD new sub-paragraphs (j)(3) and (k)(3)
that now directly specify the 12-year
compliance end time for crankshaft
removal.
You may examine the docket that
contains the AD, any comments
received, and any final disposition in
person at the Docket Management
Facility Docket Office between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays. The Docket
Office (telephone (800) 647–5227) is
located on the plaza level of the
Department of Transportation Nassif
Building at the street address stated in
ADDRESSES. Comments will be available
in the AD docket shortly after the DMS
receives them.
Comments
We provided the public the
opportunity to participate in the
development of this AD. We have
considered the comments received.
Suggest to Only Reference 360-Series
Engines
One private citizen suggests that since
Lycoming Mandatory Service Bulletin
(MSB) No. 569A, referenced in the
proposed AD, only applies to 360-series
engines with counterweighted
crankshafts, the AD should do the same.
We agree. The commenter is correct
that MSB No. 569A refers only to
counterweighted (L)O–360 engines. We
changed paragraph (c) to limit the
applicability of this AD to only those
engines listed in the tables in Lycoming
MSB No. 569A. The MSB lists the
specific engine models and serial
numbers (SNs) for engines that have a
suspect crankshaft. The MSB also lists
the specific crankshaft SNs installed on
engines after the engine entered service.
We have made this change to limit the
AD’s applicability to only those engines
with a suspect crankshaft.
PO 00000
Frm 00025
Fmt 4700
Sfmt 4700
One private citizen states that we
need to correct the table in paragraph
(c), ‘‘Applicability.’’ The Lycoming O–
540–J3C5D engine listed is actually used
in the normally-aspirated Cessna R182,
not the turbocharged TR182, as
currently listed. The engine in the
TR182 is the O–540–L3C5D.
We agree, and have corrected the
table. We need to note, however, that
the table is provided for information
only and does not control whether the
AD applies to a listed engine/aircraft
combination. As we have noted in
paragraph (c), the affected engines may
or may not be installed in the listed
aircraft models.
12-Year Overhaul Limit Not in
Lycoming Engines Service Instruction
(SI) No. 1009AR
Engine Model Included in Error in MSB
One commenter, Lycoming Engines,
states that engine model TIO–540–U2A,
SN L–4641–61A, was included in MSB
No. 569A in error and it is not affected
by the MSB and should not be included
in this AD. We agree and added new
paragraph (i) in the AD that states that
no action is required for this engine
model. We have also added a new subparagraph (f)(5) to clarify that if the AD
applies to an engine, but no action is
required because the crankshaft on that
engine is not identified as one needing
E:\FR\FM\29SER1.SGM
29SER1
Agencies
[Federal Register Volume 71, Number 189 (Friday, September 29, 2006)]
[Rules and Regulations]
[Pages 57405-57407]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E6-15819]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2006-24710; Directorate Identifier 2006-CE-29-AD;
Amendment 39-14779; AD 2006-20-10]
RIN 2120-AA64
Airworthiness Directives; Air Tractor, Inc. Models AT-802 and AT-
802A Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Air Tractor, Inc. (Air Tractor) Models AT-802 and AT-802A airplanes.
This AD requires you to repetitively inspect the attach angles on the
firewall mounted hopper rinse tank shelf for damage and/or cracks and
replace damaged and/or cracked attach angles with steel attach angles.
Replacing the attach angles with steel attach angles terminates the
repetitive inspection requirement. Reports of an uncommanded change in
the engine power setting caused by separation of the hopper rinse tank
shelf from the firewall prompted this AD. We are issuing this AD to
detect and correct damage and/or cracks in the attach angles on the
firewall mounted hopper rinse tank shelf, which could result in failure
of the attach angles. This failure could lead to shelf movement under
maneuver load and shifting of the engine power cables, which could
result in an uncommanded engine power setting change.
DATES: This AD becomes effective on November 3, 2006.
As of November 3, 2006, the Director of the Federal Register
approved the incorporation by reference of certain publications listed
in the regulation.
ADDRESSES: For service information identified 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 the Docket Management Facility, U.S.
Department of Transportation, 400 Seventh Street, SW., Nassif Building,
Room PL-401, Washington, DC 20590-001 or on the internet at https://
dms.dot.gov. The docket number is FAA-2006-24710; Directorate
Identifier 2006-CE-29-AD.
FOR FURTHER INFORMATION CONTACT: Andrew McAnaul, Aerospace Engineer,
ASW-150 (c/o MIDO-43), 10100 Reunion Place, Suite 650, San Antonio,
Texas 78216; telephone: (210) 308-3365; fax: (210) 308-3370.
SUPPLEMENTARY INFORMATION:
Discussion
On June 13, 2006, we issued a proposal to amend part 39 of the
Federal Aviation Regulations (14 CFR part 39) to include an AD that
would apply to certain Air Tractor Models AT-802 and AT-802A airplanes.
This proposal was published in the Federal Register as a notice of
proposed rulemaking (NPRM) on June 20, 2006 (71 FR 35398). The NPRM
proposed to require you to repetitively inspect the attach angles on
the firewall mounted hopper rinse tank shelf for damage and/or cracks
and replace damaged and/or cracked attach angles. Replacing the attach
angles with steel attach angles, part number 60568-3, would terminate
the proposed repetitive inspection requirement.
Comments
We provided the public the opportunity to participate in developing
this AD. We received one comment from Carroll Communications. The
comment is in reference to wind turbine radar interference.
We determined the comment is not relevant to this AD. We are not
changing the final rule AD action based on the comment.
Conclusion
We have carefully reviewed the available data and determined that
air safety and the public interest require adopting the AD as proposed
except for minor editorial corrections. We have determined that these
minor corrections:
Are consistent with the intent that was proposed in the
NPRM for correcting the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM.
Costs of Compliance
We estimate that this AD affects 219 airplanes in the U.S.
registry.
We estimate the following costs to do the inspection:
----------------------------------------------------------------------------------------------------------------
Total cost per
Labor cost Parts cost airplane Total cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
1 work-hour x $80 an hour = $80.... Not applicable........ $80 $80 x 219 = $17,520.
----------------------------------------------------------------------------------------------------------------
We estimate the following costs to do any necessary replacements
that will be required based on the results of the inspection. We have
no way of determining the number of airplanes that may need this
replacement:
----------------------------------------------------------------------------------------------------------------
Labor cost Parts cost Total cost for each airplane
----------------------------------------------------------------------------------------------------------------
3 work-hours x $80 an hour = $240......... $105 $240 + $105 = $345.
----------------------------------------------------------------------------------------------------------------
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 AD.
[[Page 57406]]
Regulatory Findings
We have 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 that 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 summary of the costs to comply with this AD (and
other information as included in the Regulatory Evaluation) and placed
it in the AD Docket.
You may get a copy of this summary by sending a request to us at
the address listed under ADDRESSES. Include ``Docket No. FAA-2006-
24710; Directorate Identifier 2006-CE-29-AD'' in your request.
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 Federal Aviation Administration amends part 39 of the Federal
Aviation Regulations (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. FAA amends Sec. 39.13 by adding the following new AD:
2006-20-10 Air Tractor, Inc.: Amendment 39-14779; Docket No. FAA-
2006-24710; Directorate Identifier 2006-CE-29-AD.
Effective Date
(a) This AD becomes effective on November 3, 2006.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Models AT-802 and AT-802A airplanes, all
serial numbers beginning with 802/802A-0001 through 802/802A-0219,
that are certificated in any category.
Unsafe Condition
(d) This AD results from reports of an uncommanded change in
engine power setting caused by separation of a hopper rinse tank
shelf from the firewall. We are issuing this AD to detect and
correct damage and/or cracks in the attach angles on the firewall
mounted hopper rinse tank shelf, which could result in failure of
the attach angles. This failure could lead to shelf movement under
maneuver load and shifting of the engine power cables, which could
result in an uncommanded engine power setting change.
Compliance
(e) To address this problem, you must do the following, unless
already done:
----------------------------------------------------------------------------------------------------------------
Actions Compliance Procedures
----------------------------------------------------------------------------------------------------------------
(1) Visually inspect the three attach Initially inspect within the Follow Snow Engineering Co. Service Letter
angles on the firewall mounted next 100 hours time-in- 248, dated August 31, 2005.
hopper rinse tank shelf for damage service (TIS) after November
and/or cracks. 3, 2006 (the effective date
of this AD). If no damage
and/or cracks are found,
repetitively inspect
thereafter at intervals not
to exceed 100 hours TIS.
Replacing all three attach
angles with steel attach
angles, part number (P/N)
60568-3 (or FAA-approved
equivalent P/N), terminates
the repetitive inspection
requirement of this AD.
(2) If you find any damage and/or Before further flight after Follow Snow Engineering Co. Service Letter
cracks on any of the three attach the inspection in which 248, dated August 31, 2005.
angles during any inspection damage and/or cracks are
required in paragraph (e)(1) of this found. Replacing all three
AD, replace all three attach angles attach angles with steel
with steel attach angles, P/N 60568- attach angles, P/N 60568-3
3 (or FAA-approved equivalent P/N). (or FAA-approved equivalent
P/N), terminates the
repetitive inspection
requirement of paragraph
(e)(1) of this AD.
(3) You may replace the aluminum As of November 3, 2006 (the Follow Snow Engineering Co. Service Letter
attach angles on the firewall effective date of this AD). 248, dated August 31, 2005.
mounted hopper rinse tank shelf with
steel attach angles, P/N 60568-3 (or
FAA-approved equivalent P/N), at any
time to terminate the repetitive
inspections required in paragraph
(e)(1) of this AD.
(4) Do not install aluminum attach As of November 3, 2006 (the Not applicable.
angles on the hopper rinse tank effective date of this AD).
shelf attach angles.
----------------------------------------------------------------------------------------------------------------
(f) 14 CFR 21.303 allows for replacement parts through parts
manufacturer approval (PMA). The phrase ``or FAA-approved equivalent
P/N'' in this AD is intended to allow for the installation of parts
approved through identicality to the design of the replacement
parts. Equivalent replacement parts to correct the unsafe condition
under PMA (other than identicality) may also be installed provided
they meet current airworthiness standards, which include those
actions cited in this AD.
Alternative Methods of Compliance (AMOCs)
(g) The Manager, Fort Worth Airplane Certification Office, FAA,
ATTN: Andrew McAnaul, Aerospace Engineer, ASW-150 (c/o MIDO-43),
10100 Reunion Place, Suite 650, San Antonio, Texas 78216; telephone:
(210) 308-3365; fax: (210) 308-3370, has the authority to approve
AMOCs for this AD, if requested using the procedures found in 14 CFR
39.19.
Material Incorporated by Reference
(h) You must do the actions required by this AD following the
instructions in Snow Engineering Co. Service Letter 248,
dated August 31, 2005. The Director of the Federal Register approved
the incorporation by reference of this service bulletin in
accordance with 5 U.S.C. 552(a) and 1 CFR part 51. To get a copy of
this service information, contact Air Tractor Inc., P.O. Box 485,
Olney, Texas 76374; telephone: (940) 564-5616; fax: (940) 564-5612.
To review copies of this service information, go to the National
Archives and Records Administration (NARA). For information on the
availability of this material at NARA, go to: https://
www.archives.gov/federal_register/code_of_federal_
regulations/ibr_locations.html or call (202) 741-6030. To
view the AD docket, go to the Docket
[[Page 57407]]
Management Facility, U.S. Department of Transportation, 400 Seventh
Street, SW., Nassif Building, Room PL-401, Washington, DC 20590-0001
or on the Internet at https://dms.dot.gov. The docket number is FAA-
2006-24710; Directorate Identifier 2006-CE-29-AD.
Issued in Kansas City, Missouri, on September 18, 2006.
Kim Smith,
Manager, Small Airplane Directorate, Aircraft Certification Service.
[FR Doc. E6-15819 Filed 9-28-06; 8:45 am]
BILLING CODE 4910-13-P