Airworthiness Directives; Learjet Model 23, 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A (C-21A), and 36 Airplanes, 38578-38580 [05-12842]
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<![CDATA[
38578
Federal Register / Vol. 70, No. 127 / Tuesday, July 5, 2005 / Rules and Regulations
TABLE 3.—MATERIAL INCORPORATED BY REFERENCE
de Havilland temporary revision
Dated
AWL 2–31 ...............................................................................................................................
AWL 2–32 ...............................................................................................................................
AWL 3–98 ...............................................................................................................................
AWL 3–99 ...............................................................................................................................
AWL–92 ..................................................................................................................................
AWL–93 ..................................................................................................................................
MTC 2–45 ...............................................................................................................................
MTC 2–46 ...............................................................................................................................
MTC 3–47 ...............................................................................................................................
MTC 3–48 ...............................................................................................................................
MTC–45 ..................................................................................................................................
MTC–46 ..................................................................................................................................
June 28, 2004 ................
June 28, 2004.
June 28, 2004 ................
June 28, 2004.
June 28, 2004 ................
June 28, 2004.
November 28, 2003 .......
November 28, 2003.
November 28, 2003 .......
November 28, 2003.
November 28, 2003 .......
November 28, 2003.
Issued in Renton, Washington, on June 21,
2005.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 05–12837 Filed 7–1–05; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2005–20872; Directorate
Identifier 2004–NM–271–AD; Amendment
39–14173; AD 2005–13–36]
RIN 2120–AA64
Airworthiness Directives; Learjet
Model 23, 24, 24A, 24B, 24B–A, 24C,
24D, 24D–A, 24E, 24F, 24F–A, 25, 25A,
25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35,
35A (C–21A), and 36 Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
The FAA is adopting a new
airworthiness directive (AD) for certain
Learjet Model 23, 24, 24A, 24B, 24B–A,
24C, 24D, 24D–A, 24E, 24F, 24F–A, 25,
25A, 25B, 25C, 25D, 25F, 28, 29, 31,
31A, 35, 35A (C–21A), and 36 airplanes.
This AD requires a one-time inspection
of the center ball of the aileron control
cable or cables for a defective swage,
and corrective actions if necessary. This
AD is prompted by a report indicating
that an aileron cable failed on one
affected airplane when the cable
underwent a tension check. We are
issuing this AD to prevent severe
weakening of the aileron cable, and
consequent reduced controllability of
the airplane.
DATES: This AD becomes effective
August 9, 2005.
SUMMARY:
VerDate jul<14>2003
14:45 Jul 01, 2005
Jkt 205001
The incorporation by reference of
certain publications listed in the AD is
approved by the Director of the Federal
Register as of August 9, 2005.
ADDRESSES: For service information
identified in this AD, contact Learjet,
Inc., One Learjet Way, Wichita, Kansas
67209–2942.
Docket: The AD docket contains the
proposed AD, comments, and any final
disposition. You can examine the AD
docket on the Internet at https://
dms.dot.gov, or in person at the Docket
Management Facility office between 9
a.m. and 5 p.m., Monday through
Friday, except Federal holidays. The
Docket Management Facility office
(telephone (800) 647–5227) is located on
the plaza level of the Nassif Building at
the U.S. Department of Transportation,
400 Seventh Street SW., room PL–401,
Washington, DC. This docket number is
FAA–2005–20872; the directorate
identifier for this docket is 2004–NM–
271–AD.
FOR FURTHER INFORMATION CONTACT:
David Hirt, Aerospace Engineer,
Systems and Propulsion Branch, ACE–
116W, FAA, Wichita Aircraft
Certification Office, 1801 Airport Road,
Room 100, Mid-Continent Airport,
Wichita, Kansas 67209; telephone (316)
946–4156; fax (316) 946–4107.
SUPPLEMENTARY INFORMATION: The FAA
proposed to amend 14 CFR part 39 with
an AD for certain Learjet Model 23, 24,
24A, 24B, 24B–A, 24C, 24D, 24D–A,
24E, 24F, 24F–A, 25, 25A, 25B, 25C,
25D, 25F, 28, 29, 31, 31A, 35, 35A (C–
21A), and 36 airplanes. That action,
published in the Federal Register on
April 6, 2005 (70 FR 17349), proposed
to require a one-time inspection of the
center ball of the aileron control cable
or cables for a defective swage, and
corrective actions if necessary.
Comments
We provided the public the
opportunity to participate in the
PO 00000
Frm 00008
Fmt 4700
Sfmt 4700
For Bombardier DHC–8
maintenance program
support manual
PSM 1–82–7.
PSM 1–83–7.
PSM 1–8–7.
PSM 1–82–7TC.
PSM 1–83–7TC.
PSM 1–8–7TC.
development of this AD. No comments
have been submitted on the proposed
AD or on the determination of the cost
to the public.
Clarification of Service Bulletin
References
All references to ‘‘Learjet Alert
Service Bulletins’’ have been changed to
refer to ‘‘Bombardier Alert Service
Bulletins.’’ This change more accurately
reflects the published titles of these
documents, and it is necessary to meet
the Office of the Federal Register’s
guidelines for material incorporated by
reference.
Conclusion
We have carefully reviewed the
available data and determined that air
safety and the public interest require
adopting the AD with the change
described previously. We have
determined that this change will neither
increase the economic burden on any
operator nor increase the scope of the
AD.
Costs of Compliance
There are about 1,704 airplanes of the
affected design in the worldwide fleet.
This AD affects about 1,136 airplanes of
U.S. registry. The inspection takes about
1 work hour per airplane, at an average
labor rate of $65 per work hour. Based
on these figures, the estimated cost of
the AD for U.S. operators is $73,840, or
$65 per airplane.
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,
E:\FR\FM\05JYR1.SGM
05JYR1
38579
Federal Register / Vol. 70, No. 127 / Tuesday, July 5, 2005 / Rules and Regulations
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 AD will
not have federalism implications under
Executive Order 13132. This AD will
not have a substantial direct effect on
the States, on the relationship between
the national government and the States,
or on the distribution of power and
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify that this AD:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866;
(2) Is not a ‘‘significant rule’’ under
DOT Regulatory Policies and Procedures
(44 FR 11034, February 26, 1979); and
(3) Will not have a significant
economic impact, positive or negative,
on a substantial number of small entities
under the criteria of the Regulatory
Flexibility Act.
We prepared a regulatory evaluation
of the estimated costs to comply with
this AD. See the ADDRESSES section for
a location to examine the regulatory
evaluation.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
Adoption of the Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as
follows:
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. The FAA amends § 39.13 by adding
the following new airworthiness
directive (AD):
I
2005–13–36 Learjet: Amendment 39–14173.
Docket No. FAA–2005–20872;
Directorate Identifier 2004–NM–271–AD.
Effective Date
(a) This AD becomes effective August 9,
2005.
Affected ADs
(b) None.
Applicability: (c) This AD applies to Learjet
Model 23, 24, 24A, 24B, 24B–A, 24C, 24D,
24D–A, 24E, 24F, 24F–A, 25, 25A, 25B, 25C,
25D, 25F, 28, 29, 31, 31A, 35, 35A (C–21A),
and 36 airplanes; certificated in any category;
as identified in the Bombardier alert service
bulletins in Table 1 of this AD.
TABLE 1.—SERVICE BULLETINS
Bombardier alert service bulletin
Date
Model
A23/24/25–27–17 ....................................................................
December 23, 2002
A28/29–27–24 .........................................................................
A31–27–25 ..............................................................................
A35/36–27–42 .........................................................................
December 23, 2002
December 23, 2002
December 23, 2002
23, 24, 24A, 24B, 24B–A, 24C, 24D, 24D–A, 24E, 24F,
24F–A, 25, 25A, 25B, 25C, 25D, and 25F airplanes.
28 and 29 airplanes.
31 and 31A airplanes.
35, 35A (C–21A), and 36 airplanes.
Unsafe Condition
(d) This AD was prompted by a report
indicating that an aileron cable failed on one
affected airplane when the cable underwent
a tension check. We are issuing this AD to
prevent severe weakening of the aileron
cable, and consequent reduced controllability
of the airplane.
Compliance: (e) You are responsible for
having the actions required by this AD
performed within the compliance times
specified, unless the actions have already
been done.
Inspection and Corrective Action
(f) Within 100 flight hours, or 90 days after
the effective date of this AD, whichever
occurs first: Do a detailed inspection of the
center ball of the aileron control cable or
cables for a defective swage, and before
further flight, replace any damaged or
defective cable with a new cable. Unless
otherwise specified in this AD, do all actions
in accordance with the Accomplishment
Instructions of the applicable service bulletin
in Table 1 of this AD.
Note 1: For the purposes of this AD, a
detailed inspection is: ‘‘An intensive
examination of a specific item, installation,
or assembly to detect damage, failure, or
irregularity. Available lighting is normally
supplemented with a direct source of good
lighting at an intensity deemed appropriate.
Inspection aids such as mirror, magnifying
VerDate jul<14>2003
14:45 Jul 01, 2005
Jkt 205001
lenses, etc., may be necessary. Surface
cleaning and elaborate procedures may be
required.’’
Parts Installation
(g) As of the effective date of this AD, no
person may install on any airplane an aileron
control cable unless it has been inspected in
accordance with paragraph (f) of this AD.
No Reporting or Parts Return Requirement
(h) Although the service bulletins in Table
1 of this AD have procedures for submitting
a report showing compliance with the
applicable service bulletin and for returning
any discrepant parts to the manufacturer, this
AD does not include those requirements.
Alternative Methods of Compliance
(AMOCs)
(i) The Manager, Wichita Aircraft
Certification Office (ACO), FAA, has the
authority to approve AMOCs for this AD, if
requested in accordance with the procedures
found in 14 CFR 39.19.
Material Incorporated by Reference
(j) You must use the service information in
Table 2 of this AD to perform the actions that
are required by this AD, unless the AD
specifies otherwise. The Director of the
Federal Register approves the incorporation
by reference of these documents in
accordance with 5 U.S.C. 552(a) and 1 CFR
PO 00000
Frm 00009
Fmt 4700
Sfmt 4700
part 51. To get copies of the service
information, contact Learjet, Inc., One Learjet
Way, Wichita, Kansas 67209–2942. To view
the AD docket, go to the Docket Management
Facility, U.S. Department of Transportation,
400 Seventh Street SW., room PL–401, Nassif
Building, Washington, DC. To review copies
of the service information, go to the National
Archives and Records Administration
(NARA). For information on the availability
of this material at the NARA, call (202) 741–
6030, or go to https://www.archives.gov/
federal_register/code_of_federal_regulations/
ibr_locations.html.
TABLE 2.—MATERIAL INCORPORATED
BY REFERENCE
Bombardier alert service bulletins
A23/24/25–27–17 ......
A28/29–27–24 ...........
A31–27–25 ................
A35/36–27–42 ...........
E:\FR\FM\05JYR1.SGM
05JYR1
Date
December
December
December
December
23,
23,
23,
23,
2002.
2002.
2002.
2002.
38580
Federal Register / Vol. 70, No. 127 / Tuesday, July 5, 2005 / Rules and Regulations
Issued in Renton, Washington, on June 21,
2005.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 05–12842 Filed 7–1–05; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2005–20755; Directorate
Identifier 2004–NM–244–AD; Amendment
39–14176; AD 2005–13–39]
RIN 2120–AA64
Airworthiness Directives; Airbus Model
A321–100 and –200 Series Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
The FAA is superseding an
existing airworthiness directive (AD),
which applies to Airbus Model A321
series airplanes. That AD currently
requires revising the Limitations section
of the airplane flight manual to include
an instruction to use Flap 3 for landing
when performing an approach in
conditions of moderate to severe icing,
significant crosswind (i.e., crosswinds
greater than 20 knots, gust included), or
moderate to severe turbulence. This new
AD requires replacing existing elevator
and aileron computers (ELACs) with
ELACs having either L83 or L91
software, as applicable, which
terminates the requirements of the
existing AD. This AD also requires a
related concurrent action. In addition,
this AD revises the applicability by
removing airplanes with these ELAC
software standards incorporated in
production. This AD is prompted by
issuance of mandatory continuing
airworthiness information by a civil
SUMMARY:
airworthiness authority. We are issuing
this AD to prevent roll oscillations
during approach and landing in certain
icing, crosswind, and turbulent
conditions, which could result in
reduced controllability of the airplane.
DATES: This AD becomes effective
August 9, 2005.
The incorporation by reference of
certain publications listed in the AD is
approved by the Director of the Federal
Register as of August 9, 2005.
ADDRESSES: For service information
identified in this AD, contact Airbus, 1
Rond Point Maurice Bellonte, 31707
Blagnac Cedex, France.
Docket: The AD docket contains the
proposed AD, comments, and any final
disposition. You can examine the AD
docket on the Internet at https://
dms.dot.gov, or in person at the Docket
Management Facility office between 9
a.m. and 5 p.m., Monday through
Friday, except Federal holidays. The
Docket Management Facility office
(telephone (800) 647–5227) is located on
the plaza level of the Nassif Building at
the U.S. Department of Transportation,
400 Seventh Street, SW., room PL–401,
Washington, DC. This docket number is
FAA–2005–20755; the directorate
identifier for this docket is 2004–NM–
244–AD.
FOR FURTHER INFORMATION CONTACT: Tim
Dulin, Aerospace Engineer,
International Branch, ANM–116, FAA,
Transport Airplane Directorate, 1601
Lind Avenue, SW., Renton, Washington
98055–4056; telephone (425) 227–2141;
fax (425) 227–1149.
SUPPLEMENTARY INFORMATION: The FAA
proposed to amend 14 CFR part 39 with
an AD to supersede AD 2004–03–02,
amendment 39–13446 (69 FR 5007,
February 3, 2004). The existing AD
applies to all Airbus Model A321 series
airplanes. The proposed AD was
published in the Federal Register on
March 30, 2005 (70 FR 16167), to
require revising the airplane flight
manual (AFM) to specify procedures for
landing under certain conditions of
icing, significant crosswind, or
moderate to severe turbulence, until the
new requirements of this new AD have
been accomplished. That action also
proposed to require replacing existing
elevator and aileron computers (ELACs)
with ELACs having either L83 or L91
software, as applicable, which would
terminate the requirements of the
existing AD. That action also proposed
to require a related concurrent action. In
addition, that action also proposed to
revise the applicability by removing
airplanes with these ELAC software
standards incorporated in production.
Comment
We provided the public the
opportunity to participate in the
development of this AD. We have
considered the comment that has been
submitted on the proposed AD.
Support for the Proposed AD
The commenter supports the
proposed AD.
Explanation of Change to Applicability
We have revised the applicability of
the proposed AD to identify model
designations as published in the most
recent type certificate data sheet for the
affected models.
Conclusion
We have carefully reviewed the
available data, including the comment
that has been submitted, and
determined that air safety and the
public interest require adopting the AD
with the change described previously.
We have determined that this change
will neither increase the economic
burden on any operator nor increase the
scope of the AD.
Costs of Compliance
The following tables provide the
estimated costs for U.S. operators to
comply with this AD.
ESTIMATED COSTS
Action
AFM revision (required by AD 2004–03–
02).
Installation of ELACs having L83 or L91
software (new required action).
VerDate jul<14>2003
14:45 Jul 01, 2005
Average labor
rate per hour
Work hour
Jkt 205001
PO 00000
Parts
Number of
U.S.-registered
airplanes
Cost per
airplane
Fleet cost
1
$65
None ...........
$65
29
$1,885
1
65
No charge ...
65
29
1,885
Frm 00010
Fmt 4700
Sfmt 4700
E:\FR\FM\05JYR1.SGM
05JYR1
]]>Agencies
[Federal Register Volume 70, Number 127 (Tuesday, July 5, 2005)]
[Rules and Regulations]
[Pages 38578-38580]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 05-12842]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2005-20872; Directorate Identifier 2004-NM-271-AD;
Amendment 39-14173; AD 2005-13-36]
RIN 2120-AA64
Airworthiness Directives; Learjet Model 23, 24, 24A, 24B, 24B-A,
24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29,
31, 31A, 35, 35A (C-21A), and 36 Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain Learjet Model 23, 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E,
24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A (C-
21A), and 36 airplanes. This AD requires a one-time inspection of the
center ball of the aileron control cable or cables for a defective
swage, and corrective actions if necessary. This AD is prompted by a
report indicating that an aileron cable failed on one affected airplane
when the cable underwent a tension check. We are issuing this AD to
prevent severe weakening of the aileron cable, and consequent reduced
controllability of the airplane.
DATES: This AD becomes effective August 9, 2005.
The incorporation by reference of certain publications listed in
the AD is approved by the Director of the Federal Register as of August
9, 2005.
ADDRESSES: For service information identified in this AD, contact
Learjet, Inc., One Learjet Way, Wichita, Kansas 67209-2942.
Docket: The AD docket contains the proposed AD, comments, and any
final disposition. You can examine the AD docket on the Internet at
https://dms.dot.gov, or in person at the Docket Management Facility
office between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The Docket Management Facility office (telephone (800) 647-
5227) is located on the plaza level of the Nassif Building at the U.S.
Department of Transportation, 400 Seventh Street SW., room PL-401,
Washington, DC. This docket number is FAA-2005-20872; the directorate
identifier for this docket is 2004-NM-271-AD.
FOR FURTHER INFORMATION CONTACT: David Hirt, Aerospace Engineer,
Systems and Propulsion Branch, ACE-116W, FAA, Wichita Aircraft
Certification Office, 1801 Airport Road, Room 100, Mid-Continent
Airport, Wichita, Kansas 67209; telephone (316) 946-4156; fax (316)
946-4107.
SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR part 39
with an AD for certain Learjet Model 23, 24, 24A, 24B, 24B-A, 24C, 24D,
24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A,
35, 35A (C-21A), and 36 airplanes. That action, published in the
Federal Register on April 6, 2005 (70 FR 17349), proposed to require a
one-time inspection of the center ball of the aileron control cable or
cables for a defective swage, and corrective actions if necessary.
Comments
We provided the public the opportunity to participate in the
development of this AD. No comments have been submitted on the proposed
AD or on the determination of the cost to the public.
Clarification of Service Bulletin References
All references to ``Learjet Alert Service Bulletins'' have been
changed to refer to ``Bombardier Alert Service Bulletins.'' This change
more accurately reflects the published titles of these documents, and
it is necessary to meet the Office of the Federal Register's guidelines
for material incorporated by reference.
Conclusion
We have carefully reviewed the available data and determined that
air safety and the public interest require adopting the AD with the
change described previously. We have determined that this change will
neither increase the economic burden on any operator nor increase the
scope of the AD.
Costs of Compliance
There are about 1,704 airplanes of the affected design in the
worldwide fleet. This AD affects about 1,136 airplanes of U.S.
registry. The inspection takes about 1 work hour per airplane, at an
average labor rate of $65 per work hour. Based on these figures, the
estimated cost of the AD for U.S. operators is $73,840, or $65 per
airplane.
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,
[[Page 38579]]
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 AD will not have federalism
implications under Executive Order 13132. This AD will not have a
substantial direct effect on the States, on the relationship between
the national government and the States, or on the distribution of power
and responsibilities among the various levels of government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866;
(2) Is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979); and
(3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
We prepared a regulatory evaluation of the estimated costs to
comply with this AD. See the ADDRESSES section for a location to
examine the regulatory evaluation.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
Accordingly, under the authority delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive (AD):
2005-13-36 Learjet: Amendment 39-14173. Docket No. FAA-2005-20872;
Directorate Identifier 2004-NM-271-AD.
Effective Date
(a) This AD becomes effective August 9, 2005.
Affected ADs
(b) None.
Applicability: (c) This AD applies to Learjet Model 23, 24, 24A,
24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C,
25D, 25F, 28, 29, 31, 31A, 35, 35A (C-21A), and 36 airplanes;
certificated in any category; as identified in the Bombardier alert
service bulletins in Table 1 of this AD.
Table 1.--Service Bulletins
----------------------------------------------------------------------------------------------------------------
Bombardier alert service bulletin Date Model
----------------------------------------------------------------------------------------------------------------
A23/24/25-27-17......................... December 23, 2002................... 23, 24, 24A, 24B, 24B-A, 24C,
24D, 24D-A, 24E, 24F, 24F-A,
25, 25A, 25B, 25C, 25D, and 25F
airplanes.
A28/29-27-24............................ December 23, 2002................... 28 and 29 airplanes.
A31-27-25............................... December 23, 2002................... 31 and 31A airplanes.
A35/36-27-42............................ December 23, 2002................... 35, 35A (C-21A), and 36
airplanes.
----------------------------------------------------------------------------------------------------------------
Unsafe Condition
(d) This AD was prompted by a report indicating that an aileron
cable failed on one affected airplane when the cable underwent a
tension check. We are issuing this AD to prevent severe weakening of
the aileron cable, and consequent reduced controllability of the
airplane.
Compliance: (e) You are responsible for having the actions
required by this AD performed within the compliance times specified,
unless the actions have already been done.
Inspection and Corrective Action
(f) Within 100 flight hours, or 90 days after the effective date
of this AD, whichever occurs first: Do a detailed inspection of the
center ball of the aileron control cable or cables for a defective
swage, and before further flight, replace any damaged or defective
cable with a new cable. Unless otherwise specified in this AD, do
all actions in accordance with the Accomplishment Instructions of
the applicable service bulletin in Table 1 of this AD.
Note 1: For the purposes of this AD, a detailed inspection is:
``An intensive examination of a specific item, installation, or
assembly to detect damage, failure, or irregularity. Available
lighting is normally supplemented with a direct source of good
lighting at an intensity deemed appropriate. Inspection aids such as
mirror, magnifying lenses, etc., may be necessary. Surface cleaning
and elaborate procedures may be required.''
Parts Installation
(g) As of the effective date of this AD, no person may install
on any airplane an aileron control cable unless it has been
inspected in accordance with paragraph (f) of this AD.
No Reporting or Parts Return Requirement
(h) Although the service bulletins in Table 1 of this AD have
procedures for submitting a report showing compliance with the
applicable service bulletin and for returning any discrepant parts
to the manufacturer, this AD does not include those requirements.
Alternative Methods of Compliance (AMOCs)
(i) The Manager, Wichita Aircraft Certification Office (ACO),
FAA, has the authority to approve AMOCs for this AD, if requested in
accordance with the procedures found in 14 CFR 39.19.
Material Incorporated by Reference
(j) You must use the service information in Table 2 of this AD
to perform the actions that are required by this AD, unless the AD
specifies otherwise. The Director of the Federal Register approves
the incorporation by reference of these documents in accordance with
5 U.S.C. 552(a) and 1 CFR part 51. To get copies of the service
information, contact Learjet, Inc., One Learjet Way, Wichita, Kansas
67209-2942. To view the AD docket, go to the Docket Management
Facility, U.S. Department of Transportation, 400 Seventh Street SW.,
room PL-401, Nassif Building, Washington, DC. To review copies of
the service information, go to the National Archives and Records
Administration (NARA). For information on the availability of this
material at the NARA, call (202) 741-6030, or go to https://
www.archives.gov/federal_register/code_of_federal_regulations/
ibr_locations.html.
Table 2.--Material Incorporated by Reference
------------------------------------------------------------------------
Bombardier alert service bulletins Date
------------------------------------------------------------------------
A23/24/25-27-17........................... December 23, 2002.
A28/29-27-24.............................. December 23, 2002.
A31-27-25................................. December 23, 2002.
A35/36-27-42.............................. December 23, 2002.
------------------------------------------------------------------------
[[Page 38580]]
Issued in Renton, Washington, on June 21, 2005.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-12842 Filed 7-1-05; 8:45 am]
BILLING CODE 4910-13-P
