Airworthiness Directives; LET a.s. Model Blanik L-13 AC Sailplanes, 21134-21136 [05-7990]
Download as PDF
<![CDATA[
21134
Federal Register / Vol. 70, No. 78 / Monday, April 25, 2005 / Rules and Regulations
Portland Branch
1230
3230
1231
3231
1232
3232
1233
3233
Seattle Branch
1250
3250
1251
3251
1252
3252
*
*
*
*
*
By order of the Board of Governors of the
Federal Reserve System, acting through the
Secretary of the Board under delegated
authority, April 19, 2005.
Jennifer J. Johnson,
Secretary of the Board.
[FR Doc. 05–8152 Filed 4–22–05; 8:45 am]
BILLING CODE 6210–01–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 2003–CE–57–AD; Amendment
39–14066; AD 2005–08–14]
Airworthiness Directives; LET a.s.
Model Blanik L–13 AC Sailplanes
Discussion
Was the Public Invited To Comment?
What Events Have Caused This AD?
We provided the public the
opportunity to participate in developing
this AD. We received no comments on
the proposal or on the determination of
the cost to the public.
The Civil Aviation Authority (CAA),
which is the airworthiness authority for
the Czech Republic, recently notified
FAA that an unsafe condition may exist
on certain LET Model Blanik L–13 AC
sailplanes. The CAA reports one case of
cracks in the attachment of control
levers on the control bridge (Drawing
No. A71 210N) on a Model Blanik L–13
AC sailplane after 130 hours time-inservice (TIS) of aerobatics. The cracks
are because of material fatigue.
Failure of the control bridge for the
sailplane could lead to loss of sailplane
control.
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
Has FAA Taken Any Action to This
Point?
The FAA adopts a new
airworthiness directive (AD) for all LET
a.s. (formerly LET n.p.) (LET) Model
Blanik L–13 AC sailplanes. This AD
requires you to replace the original
control bridge with the new
strengthened control column mounting
bridge. This AD is the result of a report
of one case of cracks in the attachment
of control levers on the control bridge.
We are issuing this AD to correct cracks
in the bedding of the front and rear
control levers, which could result in
failure of the control bridge for the
sailplane. This failure could lead to loss
of sailplane control.
DATES: This AD becomes effective on
June 6, 2005.
As of June 6, 2005, the Director of the
Federal Register approved the
incorporation by reference of certain
publications listed in the regulation.
ADDRESSES: You may get the service
information identified in this AD from
LET a.s., Kunovice 686 04, Czech
Republic; telephone: +420 572 817 650;
facsimile: +420 572 617 653.
You may view the AD docket at FAA,
Central Region, Office of the Regional
SUMMARY:
15:22 Apr 22, 2005
the NPRM should be changed to reflect
the requirements in the new LET service
bulletin.
A supplemental NPRM proposal was
published in the Federal Register on
October 7, 2004 (69 FR 60106). The
supplemental NPRM proposed to
require you to replace the original
control bridge with the new
strengthened control column mounting
bridge.
What Is the Potential Impact if FAA
Took No Action?
RIN 2120–AA64
VerDate jul<14>2003
Counsel, Attention: Rules Docket No.
2003–CE–57–AD, 901 Locust, Room
506, Kansas City, Missouri 64106. Office
hours are 8 a.m. to 4 p.m., Monday
through Friday, except Federal holidays.
FOR FURTHER INFORMATION CONTACT: Greg
Davison, Aerospace Engineer, FAA,
Small Airplane Directorate, 901 Locust,
Room 301, Kansas City, Missouri 64106;
telephone: (816) 329–4130; facsimile:
(816) 329–4090.
SUPPLEMENTARY INFORMATION:
Jkt 205001
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 all LET a.s. (formerly
LET n.p.) (LET) Model Blanik L–13 AC
sailplanes. This proposal was published
in the Federal Register as a notice of
proposed rulemaking (NPRM) on March
9, 2004 (69 FR 10939). The NPRM
proposed to require you to repetitively
inspect the bedding of the front and rear
control levers for cracks, and, if any
cracks are found, replace with parts
found free of cracks.
You would have to do the proposed
actions following Letecke Zavody
Mandatory Bulletin No.: L13/095a,
dated October 18, 2001.
Since issuance of the NPRM, LET has
issued the new Letecke Zavody
Mandatory Bulletin No.: L13AC/014a,
dated July 17, 2003. This service
bulletin removes the repetitive
inspection, requires the replacement of
parts, and changes the serial numbers
affected.
The CAA has not amended the Czech
AD to reflect this service information.
However, FAA has evaluated the new
service information and determined that
PO 00000
Frm 00006
Fmt 4700
Sfmt 4700
Comments
Conclusion
What Is FAA’s Final Determination on
This Issue?
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.
Changes to 14 CFR Part 39—Effect on
the AD
How Does the Revision to 14 CFR Part
39 Affect This AD?
On July 10, 2002, the FAA published
a new version of 14 CFR part 39 (67 FR
47997, July 22, 2002), which governs the
FAA’s AD system. This regulation now
includes material that relates to altered
products, special flight permits, and
alternative methods of compliance. This
material previously was included in
each individual AD. Since this material
is included in 14 CFR part 39, we will
not include it in future AD actions.
Costs of Compliance
How Many Sailplanes Does This AD
Impact?
We estimate that this AD affects 5
sailplanes in the U.S. registry.
What Is the Cost Impact of This AD on
Owners/Operators of the Affected
Sailplanes?
We estimate the following costs to do
the replacement:
E:\FR\FM\25APR1.SGM
25APR1
Federal Register / Vol. 70, No. 78 / Monday, April 25, 2005 / Rules and Regulations
21135
Total cost for
each airplane
Total cost on
U.S. operators
$2,455
$12,275
Labor cost
Parts cost
7 workhours × $65 for each hour = $455 ....................................................................................
$2,000
Will This AD Involve a Significant Rule
or Regulatory Action?
PART 39—AIRWORTHINESS
DIRECTIVES
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 ‘‘AD Docket No. 2003–CE–57–
AD’’ in your request.
I
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.
Regulatory Findings
List of Subjects in 14 CFR Part 39
Will This AD Impact Various Entities?
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
Authority for This Rulemaking
What Authority Does FAA Have for
Issuing This Rulemaking Action?
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.
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:
I
1. The authority citation for part 39
continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. FAA amends § 39.13 by adding a
new AD to read as follows:
I
2005–08–14 LET a.s. (Formerly LET n.p.):
Amendment 39–14066; Docket No.
2003–CE–57–AD.
When Does This AD Become Effective?
(a) This AD becomes effective on June 6,
2005.
What Other ADs Are Affected by This
Action?
(b) None.
What Sailplanes Are Affected by This AD?
(c) This AD affects Model Blanik L–13 AC
sailplanes, serial numbers 988601, 988603,
008605, 008606, and 028902, that are
certificated in any category.
What Is the Unsafe Condition Presented in
This AD?
(d) This AD is the result of a report of one
case of cracks in the attachment of control
levers on the control bridge. The actions
specified in this AD are intended to correct
cracks in the bedding of the front and rear
control levers, which could result in failure
of the control bridge for the sailplane. This
failure could lead to loss of sailplane control.
What Must I Do To Address This Problem?
(e) To address this problem, you must do
the following:
Actions
Compliance
Procedures
(1) Replace the original control bridge (Drawing
No. A741 210N) with the new strengthened
control column mounting bridge (Drawing No.
A740 370N).
(2) Do not install any original control bridge
(Drawing No. A741 210N).
Within the next 25 hours time-in-service (TIS)
after June 6, 2005 (the effective date of this
AD), unless already done.
Follow the WORK PROCEDURE paragraph
of LET Letecke Zavody Mandatory Bulletin
No.: L13AC/014a, dated July 17, 2003.
As of the effective date of this AD ...................
Not Applicable.
May I Request an Alternative Method of
Compliance?
(f) You may request a different method of
compliance or a different compliance time
for this AD by following the procedures in 14
CFR 39.19. Unless FAA authorizes otherwise,
send your request to your principal
inspector. The principal inspector may add
comments and will send your request to the
Manager, Standards Office, FAA. For
information on any already approved
alternative methods of compliance, contact
Greg Davison, Aerospace Engineer, FAA,
Small Airplane Directorate, 901 Locust,
VerDate jul<14>2003
15:22 Apr 22, 2005
Jkt 205001
Room 301, Kansas City, Missouri 64106;
telephone: (816) 329–4130; facsimile: (816)
329–4090.
Does This AD Incorporate Any Material by
Reference?
(g) You must do the actions required by
this AD following the instructions in LET
Letecke Zavody Mandatory Bulletin No.:
L13AC/014a, dated July 17, 2003. 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. You may get a copy from
PO 00000
Frm 00007
Fmt 4700
Sfmt 4700
LET a.s., Kunovice 686 04, Czech Republic;
telephone: +420 572 817 650; facsimile: +420
572 617 653. You may review copies at FAA,
Central Region, Office of the Regional
Counsel, 901 Locust, Room 506, Kansas City,
Missouri 64106; or at the National Archives
and Records Administration (NARA). For
information on the availability of this
material at NARA, call (202) 741–6030, or go
to: https://www.archives.gov/federal_register/
code_of_federal_regulations/
ibr_locations.html.
E:\FR\FM\25APR1.SGM
25APR1
21136
Federal Register / Vol. 70, No. 78 / Monday, April 25, 2005 / Rules and Regulations
Is There Other Information That Relates to
This Subject?
(h) Czech Airworthiness Directive CAA–
AD–090/2001, dated October 25, 2001, also
addresses the subject of this AD.
Issued in Kansas City, Missouri, on April
14, 2005.
Nancy C. Lane,
Acting Manager, Small Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 05–7990 Filed 4–22–05; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2005–20023; Directorate
Identifier 2004–NM–49–AD; Amendment 39–
14067; AD 2005–08–15]
RIN 2120–AA64
Airworthiness Directives; Boeing
Model 707 Airplanes and Model 720
and 720B Series Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
SUMMARY: The FAA is superseding an
existing airworthiness directive (AD),
which applies to certain Boeing Model
707 airplanes and Model 720 and 720B
series airplanes. That AD currently
requires a preventive modification of
the front spar fitting on the outboard
engine nacelle. This new AD removes
the requirement to do this preventive
modification, and requires repetitive
inspections for cracking of the front spar
fitting of the inboard and outboard
nacelle struts, and replacement of any
cracked fitting with a new fitting. This
AD also applies to more airplanes. This
AD is prompted by a report indicating
that a crack was found in a front spar
fitting that had been replaced as part of
the modification required by the
existing AD. We are issuing this AD to
detect and correct this cracking, which
could result in reduced structural
integrity of the engine nacelle, and
consequent separation of an engine from
the airplane.
DATES: This AD becomes effective May
31, 2005.
The incorporation by reference of
Boeing Alert Service Bulletin A3514,
dated July 29, 2004, as listed in the AD,
is approved by the Director of the
Federal Register as of May 31, 2005.
ADDRESSES: For service information
identified in this AD, contact Boeing
Commercial Airplanes, P.O. Box 3707,
Seattle, Washington 98124–2207.
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–2005–20023; the directorate
identifier for this docket is 2004–NM–
49–AD.
FOR FURTHER INFORMATION CONTACT:
Candice Gerretsen, Aerospace Engineer,
Airframe Branch, ANM–120S, FAA,
Seattle Aircraft Certification Office,
1601 Lind Avenue, SW., Renton,
Washington 98055–4056; telephone
(425) 917–6428; fax (425) 917–6590.
SUPPLEMENTARY INFORMATION: The FAA
proposed to amend part 39 of the
Federal Aviation Regulations (14 CFR
part 39) with an AD to supersede AD
2001–17–24, amendment 39–12415 (66
FR 45572, August 29, 2001). The
existing AD applies to certain Boeing
Model 707 airplanes and Model 720 and
720B series airplanes. The proposed AD
was published in the Federal Register
on January 12, 2005 (70 FR 2060), to
remove the requirement to do the
preventative modification of the front
spar fitting on the outboard engine
nacelle and to require repetitive
inspections for cracking of the front spar
fitting of the inboard and outboard
nacelle struts, and replacement of any
cracked fitting with a new fitting. The
proposed AD would also apply to more
airplanes.
Comments
We provided the public the
opportunity to participate in the
development of this AD. We have
considered the single comment that has
been submitted on the proposed AD.
The commenter supports the proposed
AD.
Explanation of Changes Made to This
AD
Boeing has received a Delegation
Option Authorization (DOA). We have
revised this final rule to delegate the
authority to approve an alternative
method of compliance for any repair
required by this AD to the Authorized
Representative for the Boeing DOA
Organization rather than the Designated
Engineering Representative (DER).
We have removed paragraph (h)(1) of
the proposed AD because paragraph
(h)(2) would supersede those actions.
We have re-identified paragraph (h)(2)
of the proposed AD as paragraph (h) in
this final rule.
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 changes described previously.
We have determined that these changes
will neither increase the economic
burden on any operator nor increase the
scope of the AD.
Costs of Compliance
There are about 290 airplanes of the
affected design in the worldwide fleet.
The following table provides the
estimated costs for U.S. operators to
comply with this AD.
ESTIMATED COSTS
Action
Work
hours
Average
labor rate
per hour
Parts
Inspection .....................
8
$65
None ...........................
Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
VerDate jul<14>2003
15:22 Apr 22, 2005
Jkt 205001
Frm 00008
Fmt 4700
Sfmt 4700
Fleet cost
87
$45,240 per inspection
cycle.
$520, per inspection
cycle.
rules on aviation safety. Subtitle I,
section 106, describes the authority of
the FAA Administrator. Subtitle VII,
PO 00000
Number
of U.S.-registered airplanes
Cost per
airplane
Aviation Programs, describes in more
detail the scope of the Agency’s
authority.
E:\FR\FM\25APR1.SGM
25APR1
]]>Agencies
[Federal Register Volume 70, Number 78 (Monday, April 25, 2005)]
[Rules and Regulations]
[Pages 21134-21136]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 05-7990]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 2003-CE-57-AD; Amendment 39-14066; AD 2005-08-14]
RIN 2120-AA64
Airworthiness Directives; LET a.s. Model Blanik L-13 AC
Sailplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA adopts a new airworthiness directive (AD) for all LET
a.s. (formerly LET n.p.) (LET) Model Blanik L-13 AC sailplanes. This AD
requires you to replace the original control bridge with the new
strengthened control column mounting bridge. This AD is the result of a
report of one case of cracks in the attachment of control levers on the
control bridge. We are issuing this AD to correct cracks in the bedding
of the front and rear control levers, which could result in failure of
the control bridge for the sailplane. This failure could lead to loss
of sailplane control.
DATES: This AD becomes effective on June 6, 2005.
As of June 6, 2005, the Director of the Federal Register approved
the incorporation by reference of certain publications listed in the
regulation.
ADDRESSES: You may get the service information identified in this AD
from LET a.s., Kunovice 686 04, Czech Republic; telephone: +420 572 817
650; facsimile: +420 572 617 653.
You may view the AD docket at FAA, Central Region, Office of the
Regional Counsel, Attention: Rules Docket No. 2003-CE-57-AD, 901
Locust, Room 506, Kansas City, Missouri 64106. Office hours are 8 a.m.
to 4 p.m., Monday through Friday, except Federal holidays.
FOR FURTHER INFORMATION CONTACT: Greg Davison, Aerospace Engineer, FAA,
Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri
64106; telephone: (816) 329-4130; facsimile: (816) 329-4090.
SUPPLEMENTARY INFORMATION:
Discussion
What Events Have Caused This AD?
The Civil Aviation Authority (CAA), which is the airworthiness
authority for the Czech Republic, recently notified FAA that an unsafe
condition may exist on certain LET Model Blanik L-13 AC sailplanes. The
CAA reports one case of cracks in the attachment of control levers on
the control bridge (Drawing No. A71 210N) on a Model Blanik L-13 AC
sailplane after 130 hours time-in-service (TIS) of aerobatics. The
cracks are because of material fatigue.
What Is the Potential Impact if FAA Took No Action?
Failure of the control bridge for the sailplane could lead to loss
of sailplane control.
Has FAA Taken Any Action to This Point?
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 all
LET a.s. (formerly LET n.p.) (LET) Model Blanik L-13 AC sailplanes.
This proposal was published in the Federal Register as a notice of
proposed rulemaking (NPRM) on March 9, 2004 (69 FR 10939). The NPRM
proposed to require you to repetitively inspect the bedding of the
front and rear control levers for cracks, and, if any cracks are found,
replace with parts found free of cracks.
You would have to do the proposed actions following Letecke Zavody
Mandatory Bulletin No.: L13/095a, dated October 18, 2001.
Since issuance of the NPRM, LET has issued the new Letecke Zavody
Mandatory Bulletin No.: L13AC/014a, dated July 17, 2003. This service
bulletin removes the repetitive inspection, requires the replacement of
parts, and changes the serial numbers affected.
The CAA has not amended the Czech AD to reflect this service
information. However, FAA has evaluated the new service information and
determined that the NPRM should be changed to reflect the requirements
in the new LET service bulletin.
A supplemental NPRM proposal was published in the Federal Register
on October 7, 2004 (69 FR 60106). The supplemental NPRM proposed to
require you to replace the original control bridge with the new
strengthened control column mounting bridge.
Comments
Was the Public Invited To Comment?
We provided the public the opportunity to participate in developing
this AD. We received no comments on the proposal or on the
determination of the cost to the public.
Conclusion
What Is FAA's Final Determination on This Issue?
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.
Changes to 14 CFR Part 39--Effect on the AD
How Does the Revision to 14 CFR Part 39 Affect This AD?
On July 10, 2002, the FAA published a new version of 14 CFR part 39
(67 FR 47997, July 22, 2002), which governs the FAA's AD system. This
regulation now includes material that relates to altered products,
special flight permits, and alternative methods of compliance. This
material previously was included in each individual AD. Since this
material is included in 14 CFR part 39, we will not include it in
future AD actions.
Costs of Compliance
How Many Sailplanes Does This AD Impact?
We estimate that this AD affects 5 sailplanes in the U.S. registry.
What Is the Cost Impact of This AD on Owners/Operators of the Affected
Sailplanes?
We estimate the following costs to do the replacement:
[[Page 21135]]
----------------------------------------------------------------------------------------------------------------
Total cost for Total cost on
Labor cost Parts cost each airplane U.S. operators
----------------------------------------------------------------------------------------------------------------
7 workhours x $65 for each hour = $455.......................... $2,000 $2,455 $12,275
----------------------------------------------------------------------------------------------------------------
Authority for This Rulemaking
What Authority Does FAA Have for Issuing This Rulemaking Action?
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.
Regulatory Findings
Will This AD Impact Various Entities?
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.
Will This AD Involve a Significant Rule or Regulatory Action?
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 ``AD
Docket No. 2003-CE-57-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 a new AD to read as follows:
2005-08-14 LET a.s. (Formerly LET n.p.): Amendment 39-14066; Docket
No. 2003-CE-57-AD.
When Does This AD Become Effective?
(a) This AD becomes effective on June 6, 2005.
What Other ADs Are Affected by This Action?
(b) None.
What Sailplanes Are Affected by This AD?
(c) This AD affects Model Blanik L-13 AC sailplanes, serial
numbers 988601, 988603, 008605, 008606, and 028902, that are
certificated in any category.
What Is the Unsafe Condition Presented in This AD?
(d) This AD is the result of a report of one case of cracks in
the attachment of control levers on the control bridge. The actions
specified in this AD are intended to correct cracks in the bedding
of the front and rear control levers, which could result in failure
of the control bridge for the sailplane. This failure could lead to
loss of sailplane control.
What Must I Do To Address This Problem?
(e) To address this problem, you must do the following:
------------------------------------------------------------------------
Actions Compliance Procedures
------------------------------------------------------------------------
(1) Replace the original Within the next 25 Follow the WORK
control bridge (Drawing No. hours time-in- PROCEDURE paragraph
A741 210N) with the new service (TIS) after of LET Letecke
strengthened control column June 6, 2005 (the Zavody Mandatory
mounting bridge (Drawing effective date of Bulletin No.: L13AC/
No. A740 370N). this AD), unless 014a, dated July
already done. 17, 2003.
(2) Do not install any As of the effective Not Applicable.
original control bridge date of this AD.
(Drawing No. A741 210N).
------------------------------------------------------------------------
May I Request an Alternative Method of Compliance?
(f) You may request a different method of compliance or a
different compliance time for this AD by following the procedures in
14 CFR 39.19. Unless FAA authorizes otherwise, send your request to
your principal inspector. The principal inspector may add comments
and will send your request to the Manager, Standards Office, FAA.
For information on any already approved alternative methods of
compliance, contact Greg Davison, Aerospace Engineer, FAA, Small
Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri
64106; telephone: (816) 329-4130; facsimile: (816) 329-4090.
Does This AD Incorporate Any Material by Reference?
(g) You must do the actions required by this AD following the
instructions in LET Letecke Zavody Mandatory Bulletin No.: L13AC/
014a, dated July 17, 2003. 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. You may get a
copy from LET a.s., Kunovice 686 04, Czech Republic; telephone: +420
572 817 650; facsimile: +420 572 617 653. You may review copies at
FAA, Central Region, Office of the Regional Counsel, 901 Locust,
Room 506, Kansas City, Missouri 64106; or at the National Archives
and Records Administration (NARA). For information on the
availability of this material at NARA, call (202) 741-6030, or go
to: https://www.archives.gov/federal_register/code_of_federal_
regulations/ibr_locations.html.
[[Page 21136]]
Is There Other Information That Relates to This Subject?
(h) Czech Airworthiness Directive CAA-AD-090/2001, dated October
25, 2001, also addresses the subject of this AD.
Issued in Kansas City, Missouri, on April 14, 2005.
Nancy C. Lane,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-7990 Filed 4-22-05; 8:45 am]
BILLING CODE 4910-13-P
