Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes, 45364-45367 [E6-12829]
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Federal Register / Vol. 71, No. 153 / Wednesday, August 9, 2006 / Rules and Regulations
(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
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
2006–16–10 Boeing: Amendment 39–14710.
Docket No. FAA–2006–24695;
Directorate Identifier 2006–NM–035–AD.
Effective Date
(a) This AD becomes effective September
13, 2006.
Affected ADs
(b) None.
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Applicability
(c) This AD applies to Boeing Model 747–
200B, 747–200C, 747–200F, 747–300, and
747SR series airplanes, certificated in any
category; as identified in Boeing Special
Attention Service Bulletin 747–54–2223,
dated January 26, 2006.
Unsafe Condition
(d) This AD results from reports of heat
damage and cracking of the skin and internal
structure adjacent to and aft of the precooler
exhaust vent on several engine struts on inservice airplanes. We are issuing this AD to
detect and correct cracking, buckling,
wrinkling, or heat damage of the skin and
internal structure of the engine struts, which
could result in extensive damage to the
engine struts and consequent possible
separation of an engine from the airplane
during flight.
Compliance
(e) You are responsible for having the
actions required by this AD performed within
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Jkt 208001
the compliance times specified, unless the
actions have already been done.
certification basis of the airplane, and the
approval must specifically refer to this AD.
Service Bulletin
(f) The term ‘‘service bulletin,’’ as used in
this AD, means the Accomplishment
Instructions of Boeing Special Attention
Service Bulletin 747–54–2223, dated January
26, 2006.
Material Incorporated by Reference
(k) You must use Boeing Special Attention
Service Bulletin 747–54–2223, dated January
26, 2006, to perform the actions that are
required by this AD, unless the AD specifies
otherwise. The Director of the Federal
Register approved the incorporation by
reference of this document in accordance
with 5 U.S.C. 552(a) and 1 CFR part 51.
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.
Repetitive Detailed Inspections
(g) Within 18 months after the effective
date of this AD, do a detailed inspection of
engine struts 1 through 4, as applicable, for
heat discoloration, cracking, buckling, or
wrinkling, in accordance with the service
bulletin. Repeat the detailed inspection
thereafter at intervals not to exceed 18
months.
Corrective Actions
(h) If any heat discoloration, buckling, or
wrinkling is found during any detailed
inspection required by paragraph (g) of this
AD, before further flight, do a conductivity
test to detect the extent of the heat damage
and a penetrant inspection or high frequency
eddy current inspection to detect cracking of
the heat-discolored, buckled, or wrinkled
area, in accordance with the service bulletin.
(1) If the conductivity test results are
within the limits specified in the service
bulletin and no cracking is detected, before
further flight, repair any buckled or wrinkled
area using a method approved in accordance
with the procedures specified in paragraph (j)
of this AD. Heat discoloration does not need
to be repaired if the conductivity test results
of the heat-discolored area are within the
specified limits in the service bulletin.
(2) If the conductivity test results are
outside the limits specified in the service
bulletin or if any cracking is detected, before
further flight, repair any cracking, heat
discoloration, or buckled or wrinkled area
using a method approved in accordance with
the procedures specified in paragraph (j) of
this AD.
(i) If any cracking is found during any
detailed inspection required by paragraph (g)
of this AD, before further flight, repair the
cracking using a method approved in
accordance with the procedures specified in
paragraph (j) of this AD.
Alternative Methods of Compliance
(AMOCs)
(j)(1) The Manager, Seattle 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.
(2) Before using any AMOC approved in
accordance with § 39.19 on any airplane to
which the AMOC applies, notify the
appropriate principal inspector in the FAA
Flight Standards Certificate Holding District
Office.
(3) An AMOC that provides an acceptable
level of safety may be used for any repair
required by this AD, if it is approved by an
Authorized Representative for the Boeing
Commercial Airplanes Delegation Option
Authorization Organization who has been
authorized by the Manager, Seattle ACO, to
make those findings. For a repair method to
be approved, the repair must meet the
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Issued in Renton, Washington, on July 27,
2006.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E6–12826 Filed 8–8–06; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2006–25536; Directorate
Identifier 2006–NM–158–AD; Amendment
39–14707; AD 2006–16–07]
RIN 2120–AA64
Airworthiness Directives; Bombardier
Model CL–600–2B19 (Regional Jet
Series 100 & 440) Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule; request for
comments.
AGENCY:
SUMMARY: The FAA is adopting a new
airworthiness directive (AD) for certain
Bombardier Model CL–600–2B19
(Regional Jet Series 100 & 440)
airplanes. This AD requires inspecting
contactors 1K4XD, 2K4XD, and K4XA to
determine the type of terminal base
plate, and applying sealant on the
terminal base plates, if necessary. This
AD results from incidents of short
circuit failures of certain alternating
current (AC) contactors located in the
avionics bay. We are issuing this AD to
prevent short circuit failures of certain
AC contactors, which could result in
arcing and consequent smoke or fire.
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Federal Register / Vol. 71, No. 153 / Wednesday, August 9, 2006 / Rules and Regulations
This AD becomes effective
August 9, 2006.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in the AD
as of August 9, 2006.
We must receive comments on this
AD by October 10, 2006.
ADDRESSES: Use one of the following
addresses to submit comments on this
AD.
• DOT Docket Web site: Go to
https://dms.dot.gov and follow the
instructions for sending your comments
electronically.
• Government-wide rulemaking Web
site: Go to https://www.regulations.gov
and follow the instructions for sending
your comments electronically.
• Mail: Docket Management Facility;
U.S. Department of Transportation, 400
Seventh Street, SW., Nassif Building,
Room PL–401, Washington, DC 20590.
• Fax: (202) 493–2251.
• Hand Delivery: Room PL–401 on
the plaza level of the Nassif Building,
400 Seventh Street SW., Washington,
DC, between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
Contact Bombardier, Inc., Canadair,
Aerospace Group, P.O. Box 6087,
Station Centre-ville, Montreal, Quebec
H3C 3G9, Canada, for service
information identified in this AD.
FOR FURTHER INFORMATION CONTACT:
Wing Chan, Aerospace Engineer,
Systems and Flight Test Branch, ANE–
172, FAA, New York Aircraft
Certification Office, 1600 Stewart
Avenue, suite 410, Westbury, New York
11590; telephone (516) 228–7311; fax
(516) 794–5531.
SUPPLEMENTARY INFORMATION:
DATES:
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Discussion
Transport Canada Civil Aviation
(TCCA), which is the airworthiness
authority for Canada, notified us that an
unsafe condition may exist on certain
Bombardier Model CL–600–2B19
(Regional Jet Series 100 & 440)
airplanes. TCCA advises that there have
been eight incidents of short circuit
failures of Tyco Hartman alternating
current (AC) contactors 1K4XD and
K4XA, located in the avionics bay on
Model CL–600–2B19 (Regional Jet
Series 100 & 440) airplanes. All of the
failed AC contactors had a terminal base
plate made from Ultem 2200 material. In
several cases, arcing, which initiated
due to the presence of contaminants
between the power studs, resulted in a
fire, which continued until power to the
AC contactor was interrupted, either by
the wire being burned through or by the
generator falling off-line. Short circuit
failures of AC contactors, if not
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16:38 Aug 08, 2006
Jkt 208001
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prevented, could result in arcing, which
could result in smoke or fire.
Note 1 has been included in this AD to
define this type of inspection.
Relevant Service Information
Interim Action
We consider this AD interim action. If
final action is later identified, we may
consider further rulemaking then.
Bombardier has issued Service
Bulletin 601R–24–122, Revision A,
dated July 13, 2006. The service bulletin
describes procedures for inspecting
contactors 1K4XD, 2K4XD, and K4XA to
determine which contactors have an
Ultem 2200 terminal base plate (the
plate is made from a black molded
thermal plastic material), and applying
RTV 732 sealant or RTV 3145 sealant, if
necessary. TCCA mandated the service
bulletin and issued Canadian
airworthiness directive CF–2006–17,
dated July 11, 2006, to ensure the
continued airworthiness of these
airplanes in Canada.
FAA’s Determination and Requirements
of this AD
This airplane model is manufactured
in Canada and is type certificated for
operation in the United States under the
provisions of section 21.29 of the
Federal Aviation Regulations (14 CFR
21.29) and the applicable bilateral
airworthiness agreement. As described
in this bilateral airworthiness
agreement, TCCA has kept the FAA
informed of the situation described
above. We have examined TCCA’s
findings, evaluated all pertinent
information, and determined that we
need to issue an AD for products of this
type design that are certificated for
operation in the United States.
Therefore, we are issuing this AD to
prevent short circuit failures of certain
AC contactors, which could result in
arcing and consequent smoke or fire.
This AD requires accomplishing the
actions specified in the service
information described previously,
except as discussed under ‘‘Difference
Among the AD, Service Bulletin, and
Canadian Airworthiness Directive.’’
Difference Among the AD, Service
Bulletin, and Canadian Airworthiness
Directive
The service bulletin specifies to
determine if the terminal base plate is
made of a black molded thermal plastic
material. The Canadian airworthiness
directive specifies doing a visual
inspection of the contactors to
determine which contactors have an
Ultem 2200 terminal base plate.
However, operators should note that we
have determined that the inspection
should be described as a ‘‘general visual
inspection’’ to determine which
contactors have an Ultem 2200 terminal
base plate (i.e., a plate made from a
black molded thermal plastic material).
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FAA’s Determination of the Effective
Date
An unsafe condition exists that
requires the immediate adoption of this
AD; therefore, providing notice and
opportunity for public comment before
the AD is issued is impracticable, and
good cause exists to make this AD
effective in less than 30 days. The
compliance time for doing the required
actions is within 800 flight hours or four
months. Based on the large number of
affected U.S. registered airplanes (739)
and the amount of time required to
accomplish the required actions,
including corrective actions (27 hours),
we consider that this compliance time is
necessary to avoid unnecessarily
disrupting flight schedules.
Comments Invited
This AD is a final rule that involves
requirements that affect flight safety and
was not preceded by notice and an
opportunity for public comment;
however, we invite you to submit any
relevant written data, views, or
arguments regarding this AD. Send your
comments to an address listed in the
ADDRESSES section. Include ‘‘Docket No.
FAA–2006–25536; Directorate Identifier
2006–NM–158–AD’’ at the beginning of
your comments. We specifically invite
comments on the overall regulatory,
economic, environmental, and energy
aspects of the AD that might suggest a
need to modify it.
We will post all comments we
receive, without change, to https://
dms.dot.gov, including any personal
information you provide. We will also
post a report summarizing each
substantive verbal contact with FAA
personnel concerning this AD. Using the
search function of that Web site, anyone
can find and read the comments in any
of our dockets, including the name of
the individual who sent the comment
(or signed the comment on behalf of an
association, business, labor union, etc.).
You may review the DOT’s complete
Privacy Act Statement in the Federal
Register published on April 11, 2000
(65 FR 19477–78), or you may visit
https://dms.dot.gov.
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
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Federal Register / Vol. 71, No. 153 / Wednesday, August 9, 2006 / Rules and Regulations
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 DOT
street address stated in the ADDRESSES
section. Comments will be available in
the AD docket shortly after the Docket
Management System receives them.
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
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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 the regulation:
1. Is not a ‘‘significant regulatory
action’’ under Executive Order 12866;
2. Is not a ‘‘significant rule’’ under the
DOT Regulatory Policies and Procedures
(44 FR 11034, February 26, 1979); and
3. Will not have a significant
economic impact, positive or negative,
on a substantial number of small entities
under the criteria of the Regulatory
Flexibility Act.
We prepared a regulatory evaluation
of the estimated costs to comply with
this 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
16:38 Aug 08, 2006
Jkt 208001
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
2006–16–07 Bombardier, Inc. (Formerly
Canadair): Amendment 39–14707.
Docket No. FAA–2006–25536;
Directorate Identifier 2006–NM–158–AD.
Effective Date
(a) This AD becomes effective August 9,
2006.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier Model
CL–600–2B19 (Regional Jet Series 100 & 440)
airplanes, certificated in any category, serial
numbers 7003 through 7990 inclusive and
8000 and subsequent.
Unsafe Condition
(d) This AD results from incidents of short
circuit failures of certain alternating current
(AC) contactors located in the avionics bay.
We are issuing this AD to prevent short
circuit failures of certain AC contactors,
which could result in arcing and consequent
smoke or fire.
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 800 flight hours or four months
after the effective date of this AD, whichever
occurs first: Do a general visual inspection of
AC service bus contactors 1K4XD and
2K4XD, part number (P/N) D–18ZZA, and the
utility bus contactor K4XA, P/N D–7GRZ, to
determine which contactors have an Ultem
2200 terminal base plate (i.e., the plate is
made from a black molded thermal plastic
material), and apply RTV sealant to the
terminal base plate, as applicable, by doing
all the actions specified in the
Accomplishment Instructions of Bombardier
Service Bulletin 601R–24–122, Revision A,
dated July 13, 2006. Do all applicable
applications of sealant before further flight.
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
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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.’’
Previous Actions Accomplished According
to Other Service Information
(g) Actions accomplished before the
effective date of this AD in accordance with
Bombardier Drawing Number K601R50180,
dated June 2, 2006; or Bombardier Service
Bulletin 601R–24–122, dated June 27, 2006;
are considered acceptable for compliance
with the actions specified in paragraph (f) of
this AD.
Parts Installation
(h) As of the effective date of this AD, no
person may install AC contactor 1K4XD,
2K4XD, or K4XA, having an Ultem 2200
terminal base plate, on any airplane, unless
RTV sealant has been applied to the terminal
base plate in accordance with Bombardier
Service Bulletin 601R–24–122, Revision A,
dated July 13, 2006.
Alternative Methods of Compliance
(AMOCs)
(i)(1) The Manager, New York Aircraft
Certification Office, 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 § 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
(j) Canadian airworthiness directive CF–
2006–17, dated July 11, 2006, also addresses
the subject of this AD.
Material Incorporated by Reference
(k) You must use Bombardier Service
Bulletin 601R–24–122, Revision A, dated
July 13, 2006, to perform the actions that are
required by this AD, unless the AD specifies
otherwise. The Director of the Federal
Register approved the incorporation by
reference of this document in accordance
with 5 U.S.C. 552(a) and 1 CFR part 51.
Contact Bombardier, Inc., Canadair,
Aerospace Group, P.O. Box 6087, Station
Centre-ville, Montreal, Quebec H3C 3G9,
Canada, 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.
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09AUR1
Federal Register / Vol. 71, No. 153 / Wednesday, August 9, 2006 / Rules and Regulations
Issued in Renton, Washington, on July 31,
2006.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E6–12829 Filed 8–8–06; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2006–24698; Directorate
Identifier 2006–NM–026–AD; Amendment
39–14711; AD 2006–16–11]
RIN 2120–AA64
Airworthiness Directives; Boeing
Model 737–700 and 737–800 Series
Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
jlentini on PROD1PC65 with RULES
AGENCY:
SUMMARY: The FAA is adopting a new
airworthiness directive (AD) for certain
Boeing Model 737–700 and 737–800
series airplanes. This AD requires
performing a one-time high frequency
eddy current inspection for cracking of
the backup intercostals located above
the cutout for the forward airstair door;
doing related investigative and
corrective actions if any crack is found;
and doing other specified corrective
actions if no crack is found. This AD
results from a report of fatigue cracks
discovered during a full-scale fatigue
test conducted by the manufacturer. We
are issuing this AD to detect and correct
such cracking, which could result in
more extensive fatigue cracking and
lead to possible loss of cabin pressure.
DATES: This AD becomes effective
September 13, 2006.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in the AD
as of September 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 Boeing Commercial
Airplanes, P.O. Box 3707, Seattle,
Washington 98124–2207, for service
information identified in this AD.
FOR FURTHER INFORMATION CONTACT:
Howard Hall, Aerospace Engineer,
Airframe Branch, ANM–120S, FAA,
Seattle Aircraft Certification Office,
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16:38 Aug 08, 2006
Jkt 208001
1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone
(425) 917–6430; fax (425) 917–6590.
SUPPLEMENTARY INFORMATION:
Examining the Docket
You may examine the airworthiness
directive (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 notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would
apply to certain Boeing Model 737–700
and 737–800 series airplanes. That
NPRM was published in the Federal
Register on May 9, 2006 (71 FR 26873).
That NPRM proposed to require
performing a one-time high frequency
eddy current (HFEC) inspection for
cracking of the backup intercostals
located above the cutout for the forward
airstair door; doing related investigative
and corrective actions if any crack is
found; and doing other specified
corrective actions if no crack is found.
Comment
We provided the public the
opportunity to participate in the
development of this AD. We have
considered the single comment
received. The commenter, Boeing,
supports the NPRM.
Clarification to NPRM
The first reference to Boeing Special
Attention Service Bulletin 737–53–
1236, Revision 1, dated November 10,
2005, in paragraph (f) of the NPRM was
unintentionally omitted, and has been
added to that paragraph of this AD.
Conclusion
We have carefully reviewed the
available data, including the comment
received, 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 146 airplanes of the
affected design in the worldwide fleet.
This AD will affect about 54 airplanes
of U.S. registry. The required HFEC
inspection will take about 2 work hours
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45367
per airplane, at an average labor rate of
$80 per work hour. Based on these
figures, the estimated cost of the AD for
U.S. operators is $8,640, or $160 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,
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
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as
follows:
I
E:\FR\FM\09AUR1.SGM
09AUR1
]]>Agencies
[Federal Register Volume 71, Number 153 (Wednesday, August 9, 2006)]
[Rules and Regulations]
[Pages 45364-45367]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E6-12829]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2006-25536; Directorate Identifier 2006-NM-158-AD;
Amendment 39-14707; AD 2006-16-07]
RIN 2120-AA64
Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional
Jet Series 100 & 440) Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule; request for comments.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440)
airplanes. This AD requires inspecting contactors 1K4XD, 2K4XD, and
K4XA to determine the type of terminal base plate, and applying sealant
on the terminal base plates, if necessary. This AD results from
incidents of short circuit failures of certain alternating current (AC)
contactors located in the avionics bay. We are issuing this AD to
prevent short circuit failures of certain AC contactors, which could
result in arcing and consequent smoke or fire.
[[Page 45365]]
DATES: This AD becomes effective August 9, 2006.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in the AD as of August 9,
2006.
We must receive comments on this AD by October 10, 2006.
ADDRESSES: Use one of the following addresses to submit comments on
this AD.
DOT Docket Web site: Go to https://dms.dot.gov and follow
the instructions for sending your comments electronically.
Government-wide rulemaking Web site: Go to https://
www.regulations.gov and follow the instructions for sending your
comments electronically.
Mail: Docket Management Facility; U.S. Department of
Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401,
Washington, DC 20590.
Fax: (202) 493-2251.
Hand Delivery: Room PL-401 on the plaza level of the
Nassif Building, 400 Seventh Street SW., Washington, DC, between 9 a.m.
and 5 p.m., Monday through Friday, except Federal holidays.
Contact Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 6087,
Station Centre-ville, Montreal, Quebec H3C 3G9, Canada, for service
information identified in this AD.
FOR FURTHER INFORMATION CONTACT: Wing Chan, Aerospace Engineer, Systems
and Flight Test Branch, ANE-172, FAA, New York Aircraft Certification
Office, 1600 Stewart Avenue, suite 410, Westbury, New York 11590;
telephone (516) 228-7311; fax (516) 794-5531.
SUPPLEMENTARY INFORMATION:
Discussion
Transport Canada Civil Aviation (TCCA), which is the airworthiness
authority for Canada, notified us that an unsafe condition may exist on
certain Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440)
airplanes. TCCA advises that there have been eight incidents of short
circuit failures of Tyco Hartman alternating current (AC) contactors
1K4XD and K4XA, located in the avionics bay on Model CL-600-2B19
(Regional Jet Series 100 & 440) airplanes. All of the failed AC
contactors had a terminal base plate made from Ultem 2200 material. In
several cases, arcing, which initiated due to the presence of
contaminants between the power studs, resulted in a fire, which
continued until power to the AC contactor was interrupted, either by
the wire being burned through or by the generator falling off-line.
Short circuit failures of AC contactors, if not prevented, could result
in arcing, which could result in smoke or fire.
Relevant Service Information
Bombardier has issued Service Bulletin 601R-24-122, Revision A,
dated July 13, 2006. The service bulletin describes procedures for
inspecting contactors 1K4XD, 2K4XD, and K4XA to determine which
contactors have an Ultem 2200 terminal base plate (the plate is made
from a black molded thermal plastic material), and applying RTV 732
sealant or RTV 3145 sealant, if necessary. TCCA mandated the service
bulletin and issued Canadian airworthiness directive CF-2006-17, dated
July 11, 2006, to ensure the continued airworthiness of these airplanes
in Canada.
FAA's Determination and Requirements of this AD
This airplane model is manufactured in Canada and is type
certificated for operation in the United States under the provisions of
section 21.29 of the Federal Aviation Regulations (14 CFR 21.29) and
the applicable bilateral airworthiness agreement. As described in this
bilateral airworthiness agreement, TCCA has kept the FAA informed of
the situation described above. We have examined TCCA's findings,
evaluated all pertinent information, and determined that we need to
issue an AD for products of this type design that are certificated for
operation in the United States.
Therefore, we are issuing this AD to prevent short circuit failures
of certain AC contactors, which could result in arcing and consequent
smoke or fire. This AD requires accomplishing the actions specified in
the service information described previously, except as discussed under
``Difference Among the AD, Service Bulletin, and Canadian Airworthiness
Directive.''
Difference Among the AD, Service Bulletin, and Canadian Airworthiness
Directive
The service bulletin specifies to determine if the terminal base
plate is made of a black molded thermal plastic material. The Canadian
airworthiness directive specifies doing a visual inspection of the
contactors to determine which contactors have an Ultem 2200 terminal
base plate. However, operators should note that we have determined that
the inspection should be described as a ``general visual inspection''
to determine which contactors have an Ultem 2200 terminal base plate
(i.e., a plate made from a black molded thermal plastic material). Note
1 has been included in this AD to define this type of inspection.
Interim Action
We consider this AD interim action. If final action is later
identified, we may consider further rulemaking then.
FAA's Determination of the Effective Date
An unsafe condition exists that requires the immediate adoption of
this AD; therefore, providing notice and opportunity for public comment
before the AD is issued is impracticable, and good cause exists to make
this AD effective in less than 30 days. The compliance time for doing
the required actions is within 800 flight hours or four months. Based
on the large number of affected U.S. registered airplanes (739) and the
amount of time required to accomplish the required actions, including
corrective actions (27 hours), we consider that this compliance time is
necessary to avoid unnecessarily disrupting flight schedules.
Comments Invited
This AD is a final rule that involves requirements that affect
flight safety and was not preceded by notice and an opportunity for
public comment; however, we invite you to submit any relevant written
data, views, or arguments regarding this AD. Send your comments to an
address listed in the ADDRESSES section. Include ``Docket No. FAA-2006-
25536; Directorate Identifier 2006-NM-158-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of the AD that might
suggest a need to modify it.
We will post all comments we receive, without change, to https://
dms.dot.gov, including any personal information you provide. We will
also post a report summarizing each substantive verbal contact with FAA
personnel concerning this AD. Using the search function of that Web
site, anyone can find and read the comments in any of our dockets,
including the name of the individual who sent the comment (or signed
the comment on behalf of an association, business, labor union, etc.).
You may review the DOT's complete Privacy Act Statement in the Federal
Register published on April 11, 2000 (65 FR 19477-78), or you may visit
https://dms.dot.gov.
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
[[Page 45366]]
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 DOT street address stated in
the ADDRESSES section. Comments will be available in the AD docket
shortly after the Docket Management System receives them.
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 the regulation:
1. Is not a ``significant regulatory action'' under Executive Order
12866;
2. Is not a ``significant rule'' under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979); and
3. Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
We prepared a regulatory evaluation of the estimated costs to
comply with this 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):
2006-16-07 Bombardier, Inc. (Formerly Canadair): Amendment 39-14707.
Docket No. FAA-2006-25536; Directorate Identifier 2006-NM-158-AD.
Effective Date
(a) This AD becomes effective August 9, 2006.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier Model CL-600-2B19 (Regional
Jet Series 100 & 440) airplanes, certificated in any category,
serial numbers 7003 through 7990 inclusive and 8000 and subsequent.
Unsafe Condition
(d) This AD results from incidents of short circuit failures of
certain alternating current (AC) contactors located in the avionics
bay. We are issuing this AD to prevent short circuit failures of
certain AC contactors, which could result in arcing and consequent
smoke or fire.
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 800 flight hours or four months after the effective
date of this AD, whichever occurs first: Do a general visual
inspection of AC service bus contactors 1K4XD and 2K4XD, part number
(P/N) D-18ZZA, and the utility bus contactor K4XA, P/N D-7GRZ, to
determine which contactors have an Ultem 2200 terminal base plate
(i.e., the plate is made from a black molded thermal plastic
material), and apply RTV sealant to the terminal base plate, as
applicable, by doing all the actions specified in the Accomplishment
Instructions of Bombardier Service Bulletin 601R-24-122, Revision A,
dated July 13, 2006. Do all applicable applications of sealant
before further flight.
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.''
Previous Actions Accomplished According to Other Service Information
(g) Actions accomplished before the effective date of this AD in
accordance with Bombardier Drawing Number K601R50180, dated June 2,
2006; or Bombardier Service Bulletin 601R-24-122, dated June 27,
2006; are considered acceptable for compliance with the actions
specified in paragraph (f) of this AD.
Parts Installation
(h) As of the effective date of this AD, no person may install
AC contactor 1K4XD, 2K4XD, or K4XA, having an Ultem 2200 terminal
base plate, on any airplane, unless RTV sealant has been applied to
the terminal base plate in accordance with Bombardier Service
Bulletin 601R-24-122, Revision A, dated July 13, 2006.
Alternative Methods of Compliance (AMOCs)
(i)(1) The Manager, New York Aircraft Certification Office, 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 Sec.
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
(j) Canadian airworthiness directive CF-2006-17, dated July 11,
2006, also addresses the subject of this AD.
Material Incorporated by Reference
(k) You must use Bombardier Service Bulletin 601R-24-122,
Revision A, dated July 13, 2006, to perform the actions that are
required by this AD, unless the AD specifies otherwise. The Director
of the Federal Register approved the incorporation by reference of
this document in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.
Contact Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 6087,
Station Centre-ville, Montreal, Quebec H3C 3G9, Canada, 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.
[[Page 45367]]
Issued in Renton, Washington, on July 31, 2006.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E6-12829 Filed 8-8-06; 8:45 am]
BILLING CODE 4910-13-P
