Airworthiness Directives; Aerospatiale Model ATR42-200, -300, and -320 Airplanes, 12129-12131 [06-2145]
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12129
Federal Register / Vol. 71, No. 46 / Thursday, March 9, 2006 / Rules and Regulations
TABLE 2.—NEW MATERIAL INCORPORATED BY REFERENCE
Boeing service bulletin
Revision
level
Date
Alert Service Bulletin 747–53A2427 ..................................................................................................................
Service Bulletin 747–53A2467 ..........................................................................................................................
Service Bulletin 747–53–2473 ...........................................................................................................................
Service Bulletin 747–53A2449 ..........................................................................................................................
3 ...............
1 ...............
Original ....
2 ...............
September 27, 2001.
April 28, 2005.
March 24, 2005.
March 14, 2002.
(2) On October 27, 2003 (68 FR 54990,
September 22, 2003), the Director of the
Federal Register approved the incorporation
by reference of Boeing Alert Service Bulletin
747–53A2467, dated July 26, 2001.
(3) On August 28, 2001 (66 FR 38365, July
24, 2001), the Director of the Federal Register
approved the incorporation by reference of
Boeing Alert Service Bulletin 747–53A2427,
Revision 2, dated October 5, 2000.
(4) On August 16, 2001 (66 FR 36443, July
12, 2001), the Director of the Federal Register
approved the incorporation by reference of
Boeing Service Bulletin 747–53A2449,
Revision 1, dated May 24, 2001.
(5) Contact Boeing Commercial Airplanes,
P.O. Box 3707, Seattle, Washington 98124–
2207, for a copy of this service information.
You may review copies at the Docket
Management Facility, U.S. Department of
Transportation, 400 Seventh Street SW.,
Room PL–401, Nassif Building, Washington,
DC; on the Internet at https://dms.dot.gov; or
at 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.
Issued in Renton, Washington, on February
22, 2006.
Michael J. Kaszycki,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 06–2144 Filed 3–8–06; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2005–20220; Directorate
Identifier 2004–NM–152–AD; Amendment
39–14504; AD 2006–05–07]
RIN 2120–AA64
Airworthiness Directives; Aerospatiale
Model ATR42–200, –300, and –320
Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
hsrobinson on PROD1PC70 with RULES
AGENCY:
The FAA is adopting a new
airworthiness directive (AD) for certain
SUMMARY:
VerDate Aug<31>2005
15:06 Mar 08, 2006
Jkt 208001
Aerospatiale Model ATR42–200, –300,
and –320 airplanes. This AD requires
doing repetitive inspections of the
upper arms of the main landing gear
(MLG) side braces for missing or
inadequately bonded identification
plates; doing an ultrasonic inspection of
the upper arm of the MLG side brace for
any defects and related investigative/
corrective actions if necessary; and
replacing the side brace assembly with
a modified part. This AD results from an
operator who reported experiencing an
unlock warning for the MLG on the right
side of the airplane. We are issuing this
AD to prevent cracking of the upper
arms of the side braces of the MLG,
which could result in failure of the MLG
during landing and possible damage to
the airplane and injury to the flightcrew
and passengers.
DATES: This AD becomes effective April
13, 2006.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in the AD
as of April 13, 2006.
ADDRESSES: You may examine the AD
docket on the Internet at https://
dms.dot.gov or in person at the Docket
Management Facility, U.S. Department
of Transportation, 400 Seventh Street,
SW., Nassif Building, room PL–401,
Washington, DC.
Contact Aerospatiale, 316 Route de
Bayonne, 31060 Toulouse, Cedex 03,
France, for service information
identified in this AD.
FOR FURTHER INFORMATION CONTACT: Tom
Rodriguez, Aerospace Engineer,
International Branch, ANM–116,
Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton,
Washington 98055–4056; telephone
(425) 227–1137; fax (425) 227–1149.
SUPPLEMENTARY INFORMATION:
Examining the Docket
You may 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
PO 00000
Frm 00009
Fmt 4700
Sfmt 4700
level of the Nassif Building at the street
address stated in the ADDRESSES section.
Discussion
The FAA issued a supplemental
notice of proposed rulemaking (NPRM)
to amend 14 CFR part 39 to include an
AD that would apply to certain
Aerospatiale Model ATR42–200, –300,
and –320 airplanes. That supplemental
NPRM was published in the Federal
Register on December 13, 2005 (70 FR
73671). That supplemental NPRM
proposed to require repetitive
inspections of the upper arms of the
main landing gear (MLG) side braces for
missing or inadequately bonded
identification plates; doing an ultrasonic
inspection of the upper arm of the MLG
side brace for any defects and related
investigative/corrective actions if
necessary; and replacing the side brace
assembly with a modified part.
Comments
We provided the public the
opportunity to participate in the
development of this AD. No comments
have been received on the supplemental
NPRM or on the determination of the
cost to the public.
Change Made to This AD
We have added a grace period of 25
flight hours to paragraph (i) of this AD
for operators who may inadvertently use
Revision 1 of Messier-Dowty Special
Inspection Service Bulletin 631–32–181,
dated March 16, 2005, after the effective
date of this AD.
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
The following table provides the
estimated costs for U.S. operators to
comply with this AD.
E:\FR\FM\09MRR1.SGM
09MRR1
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Federal Register / Vol. 71, No. 46 / Thursday, March 9, 2006 / Rules and Regulations
ESTIMATED COSTS
Average
labor rate
per hour
Action
Work hours
General visual inspection, per inspection
cycle.
Replacement of side brace assemblies ..
1 .......................
hsrobinson on PROD1PC70 with RULES
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 and placed it in the AD docket.
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.
VerDate Aug<31>2005
15:06 Mar 08, 2006
Jkt 208001
None
$65
54
65
$0
130
54
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 Federal Aviation
Administration (FAA) amends § 39.13
by adding the following new
airworthiness directive (AD):
I
2006–05–07 Aerospatiale: Amendment 39–
14504. Docket No. FAA–2005–20220;
Directorate Identifier 2004–NM–152–AD.
Effective Date
(a) This AD becomes effective April 13,
2006.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Aerospatiale Model
ATR42–200, –300, and –320 airplanes,
certificated in any category; with main
landing gear (MLG) side brace assemblies
having part number (P/N) D22710000–( )
except –8, equipped with upper arms having
P/N D56778–10.
Unsafe Condition
(d) This AD results from an operator who
reported experiencing an unlock warning for
the MLG on the right side of the airplane. We
are issuing this AD to prevent cracking of the
upper arms of the side braces of the MLG,
which could result in failure of the MLG
during landing and possible damage to the
airplane and injury to the flightcrew and
passengers.
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.
Service Bulletin References
(f) The term ‘‘service bulletin,’’ as used in
this AD, means the Accomplishment
Instructions of the following service
bulletins, as applicable:
PO 00000
Number of
U.S.registered
airplanes
$65
2 (1 hour per
side brace).
Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
section 106, describes the authority of
the FAA Administrator. Subtitle VII,
Aviation Programs, describes in more
detail the scope of the Agency’s
authority.
We are issuing this rulemaking under
the authority described in subtitle VII,
part A, subpart III, section 44701,
‘‘General requirements.’’ Under that
section, Congress charges the FAA with
promoting safe flight of civil aircraft in
air commerce by prescribing regulations
for practices, methods, and procedures
the Administrator finds necessary for
safety in air commerce. This regulation
is within the scope of that authority
because it addresses an unsafe condition
that is likely to exist or develop on
products identified in this rulemaking
action.
Cost per
airplane
Parts
Frm 00010
Fmt 4700
Sfmt 4700
Fleet cost
$3,510, per inspection
cycle.
$7,020.
(1) For the general visual inspection and
ultrasonic inspection specified in paragraphs
(g) and (h) of this AD, respectively: MessierDowty Special Inspection Service Bulletin
631–32–181, Revision 2, dated June 3, 2005;
and
(2) For the replacement specified in
paragraph (j) of this AD: Messier-Dowty
Service Bulletin 631–32–176, Revision 1,
dated June 2, 2004.
Repetitive Inspections of Identification
Plates
(g) Within 2 months or 500 flight hours
after the effective date of this AD, whichever
is first: Do a general visual inspection of the
upper arms of the MLG side braces for
inadequately bonded identification plates
having P/Ns D61565–1, D61566–1, D61567–
1, and D61568–1 and for any missing bead
of glue, in accordance with the service
bulletin. Thereafter at intervals not to exceed
2 months or 500 flight hours, whichever is
first: Repeat the inspection of the upper arm
of the MLG side brace for any side brace
assembly that has not been inspected in
accordance with paragraph (h) of this AD or
replaced as required by paragraph (j) of this
AD.
Note 1: For the purposes of this AD, a
general visual inspection is: ‘‘A visual
examination of an interior or exterior area,
installation, or assembly to detect obvious
damage, failure, or irregularity. This level of
inspection is made from within touching
distance unless otherwise specified. A mirror
may be necessary to ensure visual access to
all surfaces in the inspection area. This level
of inspection is made under normally
available lighting conditions such as
daylight, hangar lighting, flashlight, or
droplight and may require removal or
opening of access panels or doors. Stands,
ladders, or platforms may be required to gain
proximity to the area being checked.’’
Ultrasonic Inspection, if Necessary
(h) If any identification plate having P/N
D61565–1, D61566–1, D61567–1, or D61568–
1 or any bead of glue is missing or found
inadequately bonded during any inspection
required by paragraph (g) of this AD: Within
25 flight hours since the most recent general
visual inspection, do an ultrasonic inspection
of the upper arm of the MLG side brace for
any defects and do any related investigative
and corrective actions as applicable, by doing
all of the applicable actions specified in Part
2.B.(3) of the service bulletin; except where
the service bulletin specifies replacing the
side brace with a side brace equipped with
an airworthy upper arm, replace it with a
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09MRR1
Federal Register / Vol. 71, No. 46 / Thursday, March 9, 2006 / Rules and Regulations
part modified in accordance with paragraph
(j) of this AD. Any corrective actions must be
done before further flight after doing the
ultrasonic inspection.
Additional Ultrasonic Inspection for Certain
Airplanes
(i) For airplanes on which the ultrasonic
inspection specified in paragraph (h) of this
AD has been accomplished in accordance
with Messier-Dowty Special Inspection
Service Bulletin 631–32–181, Revision 1,
dated March 16, 2005: Within 25 flight hours
after the effective date of this AD, or within
25 flight hours after the ultrasonic
inspection, whichever is later, do all the
applicable actions specified in paragraph (h)
of this AD in accordance with Messier-Dowty
Special Inspection Service Bulletin 631–32–
181, Revision 2, dated June 3, 2005.
Replacement With a Modified Side Brace
Assembly
(j) At the applicable compliance time
specified in paragraph (j)(1) or (j)(2) of this
AD: Remove the side brace assembly and
replace it with a part modified by doing all
of the actions in the service bulletin.
Replacement of a side brace assembly with a
modified part terminates the repetitive
inspections required by paragraph (g) of this
AD for that modified side brace assembly
only. If the side brace assembly of the left
and right MLG is replaced with a modified
part, no more work is required by paragraph
(g) of this AD.
(1) For airplanes on which Messier-Dowty
Service Bulletin 631–32–072 has not been
accomplished: Before the accumulation of
15,000 total flight cycles on a side brace
assembly since new or since last overhaul, or
96 months on a side brace assembly since
new or since last overhaul, whichever is first.
(2) For airplanes on which Messier-Dowty
Service Bulletin 631–32–072 has been
accomplished: Before the accumulation of
18,000 total flight cycles on a side brace
assembly since new or since last overhaul, or
96 months on a side brace assembly since
new or since last overhaul, whichever is first.
Credit for Previous Service Bulletin
(k) Replacements done before the effective
date of this AD in accordance with MessierDowty Service Bulletin 631–32–176, dated
February 26, 2004, are acceptable for
compliance with the corresponding
requirements of paragraph (j) of this AD.
hsrobinson on PROD1PC70 with RULES
No Reporting Requirement
(l) Although Messier-Dowty Special
Inspection Service Bulletin 631–32–181,
Revision 2, dated June 3, 2005, specifies to
submit certain information to the
manufacturer, this AD does not include that
requirement.
Alternative Methods of Compliance
(AMOCs)
(m)(1) The Manager, International Branch,
ANM–116, Transport Airplane Directorate,
FAA, has the authority to approve AMOCs
for this AD, if requested in accordance with
the procedures found in 14 CFR 39.19.
(2) Before using any AMOC approved in
accordance with 14 CFR 39.19 on any
airplane to which the AMOC applies, notify
VerDate Aug<31>2005
15:06 Mar 08, 2006
Jkt 208001
the appropriate principal inspector in the
FAA Flight Standards Certificate Holding
District Office.
Related Information
(n) French airworthiness directive F–2005–
106, dated July 6, 2005, also addresses the
subject of this AD.
Material Incorporated by Reference
(o) You must use Messier-Dowty Service
Bulletin 631–32–176, Revision 1, dated June
2, 2004; and Messier-Dowty Special
Inspection Service Bulletin 631–32–181,
Revision 2, dated June 3, 2005, as applicable,
to perform the actions that are required by
this AD, unless the AD specifies otherwise.
Messier-Dowty Service Bulletin 631–32–176,
Revision 1, dated June 2, 2004, contains the
following effective pages:
Page No.
Revision
level shown
on page
Date shown
on page
1, 3 ..............
2, 4–9 ..........
1 ..................
Original ........
June 2, 2004.
February 26,
2004.
Messier-Dowty Special Inspection Service
Bulletin 631–32–181, Revision 2, dated June
3, 2005, contains the following effective
pages:
Page No.
Revision
level shown
on page
Date shown
on page
1–5, 7–18 ....
6 ...................
2 ..................
1 ..................
June 3, 2005.
March 16,
2005.
The Director of the Federal Register
approved the incorporation by reference of
these documents in accordance with 5 U.S.C.
552(a) and 1 CFR part 51. Contact
Aerospatiale, 316 Route de Bayonne, 31060
Toulouse, Cedex 03, France, for a copy of this
service information. You may review copies
at the Docket Management Facility, U.S.
Department of Transportation, 400 Seventh
Street SW., room PL–401, Nassif Building,
Washington, DC; on the Internet at https://
dms.dot.gov; or at 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/
7fxsp0;ibr_locations.html.
Issued in Renton, Washington, on February
22, 2006.
Michael J. Kaszycki,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 06–2145 Filed 3–8–06; 8:45 am]
BILLING CODE 4910–13–P
PO 00000
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2006–23604; Directorate
Identifier 2005–NE–49–AD; Amendment 39–
14498; AD 2006–05–01]
RIN 2120–AA64
Airworthiness Directives; Rolls-Royce
plc RB211 Trent 500, 700, and 800
Series Turbofan Engines; Correction
Federal Aviation
Administration, DOT.
AGENCY:
ACTION:
Final rule; correction.
SUMMARY: This document makes a
correction to Airworthiness Directive
(AD) 2006–05–01. That AD applies to
Rolls-Royce plc RB211 Trent 500, 700,
and 800 series turbofan engines. We
published AD 2006–05–01 in the
Federal Register on March 1, 2006, (71
FR 10415). An incorrect engine model
number exists in the compliance
section, in two places. This document
corrects the engine model number. In all
other respects, the original document
remains the same.
DATES:
Effective Date: Effective March 9,
2006.
FOR FURTHER INFORMATION CONTACT:
Christopher Spinney, Aerospace
Engineer, Engine Certification Office,
FAA, Engine and Propeller Directorate,
12 New England Executive Park,
Burlington, MA 01803; telephone (781)
238–7175; fax (781) 238–7199.
A final
rule AD, FR Doc. 06–1827, that applies
to Rolls-Royce plc RB211 Trent 500,
700, and 800 series turbofan engines
was published in the Federal Register
on March 1, 2006, (71 FR 10415). The
following correction is needed:
SUPPLEMENTARY INFORMATION:
§ 39.13
[Corrected]
On page 10416, in the second column,
in compliance paragraph (c), in the fifth
line, ‘‘675–17’’ is corrected to read
‘‘875–17’’. Also, on the same page, in
compliance paragraph (i)(1), in the
fourth line, ‘‘675–17’’ is corrected to
read ‘‘875–17’’.
I
Issued in Burlington, MA, on March 3,
2006.
Peter A. White,
Acting Manager, Engine and Propeller
Directorate, Aircraft Certification Service.
[FR Doc. 06–2244 Filed 3–8–06; 8:45 am]
BILLING CODE 4910–13–P
Frm 00011
Fmt 4700
Sfmt 4700
12131
E:\FR\FM\09MRR1.SGM
09MRR1
]]>Agencies
[Federal Register Volume 71, Number 46 (Thursday, March 9, 2006)]
[Rules and Regulations]
[Pages 12129-12131]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 06-2145]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2005-20220; Directorate Identifier 2004-NM-152-AD;
Amendment 39-14504; AD 2006-05-07]
RIN 2120-AA64
Airworthiness Directives; Aerospatiale Model ATR42-200, -300, and
-320 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 Aerospatiale Model ATR42-200, -300, and -320 airplanes. This AD
requires doing repetitive inspections of the upper arms of the main
landing gear (MLG) side braces for missing or inadequately bonded
identification plates; doing an ultrasonic inspection of the upper arm
of the MLG side brace for any defects and related investigative/
corrective actions if necessary; and replacing the side brace assembly
with a modified part. This AD results from an operator who reported
experiencing an unlock warning for the MLG on the right side of the
airplane. We are issuing this AD to prevent cracking of the upper arms
of the side braces of the MLG, which could result in failure of the MLG
during landing and possible damage to the airplane and injury to the
flightcrew and passengers.
DATES: This AD becomes effective April 13, 2006.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in the AD as of April 13,
2006.
ADDRESSES: You may examine the AD docket on the Internet at https://
dms.dot.gov or in person at the Docket Management Facility, U.S.
Department of Transportation, 400 Seventh Street, SW., Nassif Building,
room PL-401, Washington, DC.
Contact Aerospatiale, 316 Route de Bayonne, 31060 Toulouse, Cedex
03, France, for service information identified in this AD.
FOR FURTHER INFORMATION CONTACT: Tom Rodriguez, Aerospace Engineer,
International Branch, ANM-116, Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425)
227-1137; fax (425) 227-1149.
SUPPLEMENTARY INFORMATION:
Examining the Docket
You may 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 street address stated in the
ADDRESSES section.
Discussion
The FAA issued a supplemental notice of proposed rulemaking (NPRM)
to amend 14 CFR part 39 to include an AD that would apply to certain
Aerospatiale Model ATR42-200, -300, and -320 airplanes. That
supplemental NPRM was published in the Federal Register on December 13,
2005 (70 FR 73671). That supplemental NPRM proposed to require
repetitive inspections of the upper arms of the main landing gear (MLG)
side braces for missing or inadequately bonded identification plates;
doing an ultrasonic inspection of the upper arm of the MLG side brace
for any defects and related investigative/corrective actions if
necessary; and replacing the side brace assembly with a modified part.
Comments
We provided the public the opportunity to participate in the
development of this AD. No comments have been received on the
supplemental NPRM or on the determination of the cost to the public.
Change Made to This AD
We have added a grace period of 25 flight hours to paragraph (i) of
this AD for operators who may inadvertently use Revision 1 of Messier-
Dowty Special Inspection Service Bulletin 631-32-181, dated March 16,
2005, after the effective date of this AD.
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
The following table provides the estimated costs for U.S. operators
to comply with this AD.
[[Page 12130]]
Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
Number of
Average Cost per U.S.-
Action Work hours labor rate Parts airplane registered Fleet cost
per hour airplanes
--------------------------------------------------------------------------------------------------------------------------------------------------------
General visual inspection, per 1.......................... $65 None $65 54 $3,510, per inspection cycle.
inspection cycle.
Replacement of side brace 2 (1 hour per side brace).. 65 $0 130 54 $7,020.
assemblies.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. Subtitle VII, Aviation Programs,
describes in more detail the scope of the Agency's authority.
We are issuing this rulemaking under the authority described in
subtitle VII, part A, subpart III, section 44701, ``General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.
Regulatory Findings
We have determined that this 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 and placed it in the AD docket. 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 Federal Aviation Administration (FAA) amends Sec. 39.13 by
adding the following new airworthiness directive (AD):
2006-05-07 Aerospatiale: Amendment 39-14504. Docket No. FAA-2005-
20220; Directorate Identifier 2004-NM-152-AD.
Effective Date
(a) This AD becomes effective April 13, 2006.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Aerospatiale Model ATR42-200, -300, and -
320 airplanes, certificated in any category; with main landing gear
(MLG) side brace assemblies having part number (P/N) D22710000-( )
except -8, equipped with upper arms having P/N D56778-10.
Unsafe Condition
(d) This AD results from an operator who reported experiencing
an unlock warning for the MLG on the right side of the airplane. We
are issuing this AD to prevent cracking of the upper arms of the
side braces of the MLG, which could result in failure of the MLG
during landing and possible damage to the airplane and injury to the
flightcrew and passengers.
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.
Service Bulletin References
(f) The term ``service bulletin,'' as used in this AD, means the
Accomplishment Instructions of the following service bulletins, as
applicable:
(1) For the general visual inspection and ultrasonic inspection
specified in paragraphs (g) and (h) of this AD, respectively:
Messier-Dowty Special Inspection Service Bulletin 631-32-181,
Revision 2, dated June 3, 2005; and
(2) For the replacement specified in paragraph (j) of this AD:
Messier-Dowty Service Bulletin 631-32-176, Revision 1, dated June 2,
2004.
Repetitive Inspections of Identification Plates
(g) Within 2 months or 500 flight hours after the effective date
of this AD, whichever is first: Do a general visual inspection of
the upper arms of the MLG side braces for inadequately bonded
identification plates having P/Ns D61565-1, D61566-1, D61567-1, and
D61568-1 and for any missing bead of glue, in accordance with the
service bulletin. Thereafter at intervals not to exceed 2 months or
500 flight hours, whichever is first: Repeat the inspection of the
upper arm of the MLG side brace for any side brace assembly that has
not been inspected in accordance with paragraph (h) of this AD or
replaced as required by paragraph (j) of this AD.
Note 1: For the purposes of this AD, a general visual inspection
is: ``A visual examination of an interior or exterior area,
installation, or assembly to detect obvious damage, failure, or
irregularity. This level of inspection is made from within touching
distance unless otherwise specified. A mirror may be necessary to
ensure visual access to all surfaces in the inspection area. This
level of inspection is made under normally available lighting
conditions such as daylight, hangar lighting, flashlight, or
droplight and may require removal or opening of access panels or
doors. Stands, ladders, or platforms may be required to gain
proximity to the area being checked.''
Ultrasonic Inspection, if Necessary
(h) If any identification plate having P/N D61565-1, D61566-1,
D61567-1, or D61568-1 or any bead of glue is missing or found
inadequately bonded during any inspection required by paragraph (g)
of this AD: Within 25 flight hours since the most recent general
visual inspection, do an ultrasonic inspection of the upper arm of
the MLG side brace for any defects and do any related investigative
and corrective actions as applicable, by doing all of the applicable
actions specified in Part 2.B.(3) of the service bulletin; except
where the service bulletin specifies replacing the side brace with a
side brace equipped with an airworthy upper arm, replace it with a
[[Page 12131]]
part modified in accordance with paragraph (j) of this AD. Any
corrective actions must be done before further flight after doing
the ultrasonic inspection.
Additional Ultrasonic Inspection for Certain Airplanes
(i) For airplanes on which the ultrasonic inspection specified
in paragraph (h) of this AD has been accomplished in accordance with
Messier-Dowty Special Inspection Service Bulletin 631-32-181,
Revision 1, dated March 16, 2005: Within 25 flight hours after the
effective date of this AD, or within 25 flight hours after the
ultrasonic inspection, whichever is later, do all the applicable
actions specified in paragraph (h) of this AD in accordance with
Messier-Dowty Special Inspection Service Bulletin 631-32-181,
Revision 2, dated June 3, 2005.
Replacement With a Modified Side Brace Assembly
(j) At the applicable compliance time specified in paragraph
(j)(1) or (j)(2) of this AD: Remove the side brace assembly and
replace it with a part modified by doing all of the actions in the
service bulletin. Replacement of a side brace assembly with a
modified part terminates the repetitive inspections required by
paragraph (g) of this AD for that modified side brace assembly only.
If the side brace assembly of the left and right MLG is replaced
with a modified part, no more work is required by paragraph (g) of
this AD.
(1) For airplanes on which Messier-Dowty Service Bulletin 631-
32-072 has not been accomplished: Before the accumulation of 15,000
total flight cycles on a side brace assembly since new or since last
overhaul, or 96 months on a side brace assembly since new or since
last overhaul, whichever is first.
(2) For airplanes on which Messier-Dowty Service Bulletin 631-
32-072 has been accomplished: Before the accumulation of 18,000
total flight cycles on a side brace assembly since new or since last
overhaul, or 96 months on a side brace assembly since new or since
last overhaul, whichever is first.
Credit for Previous Service Bulletin
(k) Replacements done before the effective date of this AD in
accordance with Messier-Dowty Service Bulletin 631-32-176, dated
February 26, 2004, are acceptable for compliance with the
corresponding requirements of paragraph (j) of this AD.
No Reporting Requirement
(l) Although Messier-Dowty Special Inspection Service Bulletin
631-32-181, Revision 2, dated June 3, 2005, specifies to submit
certain information to the manufacturer, this AD does not include
that requirement.
Alternative Methods of Compliance (AMOCs)
(m)(1) The Manager, International Branch, ANM-116, Transport
Airplane Directorate, FAA, has the authority to approve AMOCs for
this AD, if requested in accordance with the procedures found in 14
CFR 39.19.
(2) Before using any AMOC approved in accordance with 14 CFR
39.19 on any airplane to which the AMOC applies, notify the
appropriate principal inspector in the FAA Flight Standards
Certificate Holding District Office.
Related Information
(n) French airworthiness directive F-2005-106, dated July 6,
2005, also addresses the subject of this AD.
Material Incorporated by Reference
(o) You must use Messier-Dowty Service Bulletin 631-32-176,
Revision 1, dated June 2, 2004; and Messier-Dowty Special Inspection
Service Bulletin 631-32-181, Revision 2, dated June 3, 2005, as
applicable, to perform the actions that are required by this AD,
unless the AD specifies otherwise. Messier-Dowty Service Bulletin
631-32-176, Revision 1, dated June 2, 2004, contains the following
effective pages:
------------------------------------------------------------------------
Revision level
Page No. shown on page Date shown on page
------------------------------------------------------------------------
1, 3........................... 1................. June 2, 2004.
2, 4-9......................... Original.......... February 26, 2004.
------------------------------------------------------------------------
Messier-Dowty Special Inspection Service Bulletin 631-32-181,
Revision 2, dated June 3, 2005, contains the following effective
pages:
------------------------------------------------------------------------
Revision level
Page No. shown on page Date shown on page
------------------------------------------------------------------------
1-5, 7-18...................... 2................. June 3, 2005.
6.............................. 1................. March 16, 2005.
------------------------------------------------------------------------
The Director of the Federal Register approved the incorporation
by reference of these documents in accordance with 5 U.S.C. 552(a)
and 1 CFR part 51. Contact Aerospatiale, 316 Route de Bayonne, 31060
Toulouse, Cedex 03, France, for a copy of this service information.
You may review copies at the Docket Management Facility, U.S.
Department of Transportation, 400 Seventh Street SW., room PL-401,
Nassif Building, Washington, DC; on the Internet at https://
dms.dot.gov; or at 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/7fxsp0;ibr--
locations.html.
Issued in Renton, Washington, on February 22, 2006.
Michael J. Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 06-2145 Filed 3-8-06; 8:45 am]
BILLING CODE 4910-13-P
