Airworthiness Directives; Bombardier, Inc. Airplanes, 4646-4648 [2012-1993]
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4646
Federal Register / Vol. 77, No. 20 / Tuesday, January 31, 2012 / Rules and Regulations
regulation the interim final regulation
that revised FHFA’s implementing
regulation under the Privacy Act of 1974
(Privacy Act). The changes to the
existing Privacy Act regulation provide
the procedures and guidelines under
which FHFA and the FHFA Office of
Inspector General (FHFA–OIG) will
implement the Privacy Act of 1974, as
amended (5 U.S.C. 552a).
DATES: The final regulation is effective
January 31, 2012.
FOR FURTHER INFORMATION CONTACT:
Stacy J. Easter, Privacy Act Officer, (202)
649–3067, stacy.easter@fhfa.gov, or
David A. Lee, Senior Agency Official for
Privacy, (202) 649–3058,
david.lee@fhfa.gov (not toll-free
numbers), Federal Housing Finance
Agency, 400 Seventh Street, SW., Eighth
Floor, Washington, DC 20024. Please
note that all mail sent to FHFA via the
United States Postal Service is routed
through a national irradiation facility, a
process that may delay delivery by
approximately two weeks. For any timesensitive correspondence, please plan
accordingly. The telephone number for
the Telecommunications Device for the
Deaf is (800) 877–8339.
SUPPLEMENTARY INFORMATION:
that requires the approval of OMB under
the Paperwork Reduction Act (44 U.S.C.
3501 et seq.).
I. Background
Amendment, Appeals, Correction,
Disclosure, Exemptions, Fees, Privacy,
Privacy Act, Records, Requests, Social
Security numbers.
In August 2011, FHFA published an
interim final regulation with request for
comments that revised its Privacy Act
regulation. See 76 FR 51869 (Aug. 19,
2011). The revised Privacy Act
regulation (12 CFR part 1204) provided
the procedures and guidelines under
which FHFA and FHFA–OIG will
implement the Privacy Act. The 60-day
public comment period for the interim
final regulation closed on October 18,
2011. See 76 FR 51869.
wreier-aviles on DSK5TPTVN1PROD with RULES
II. Analysis of Public Comments and
the Final Regulation
FHFA received no comments in
response to the interim final regulation.
Thus, for the reasons set forth in detail
in the interim final regulation, FHFA is
adopting the interim final regulation as
a final regulation without any
substantive changes. However, since the
publication of the interim final
regulation, FHFA has relocated its
headquarters and its mailing address
and contact information for the Privacy
program has changed. As a result, FHFA
will be making only technical changes
to the regulation to include the new
mailing address and facsimile numbers
for the Privacy program.
III. Paperwork Reduction Act
The final regulation does not contain
any information collection requirement
VerDate Mar<15>2010
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IV. Regulatory Flexibility Act
[FR Doc. 2012–1968 Filed 1–30–12; 8:45 am]
The Regulatory Flexibility Act (5
U.S.C. 601 et seq.) requires that a
regulation that has a significant
economic impact on a substantial
number of small entities, small
businesses, or small organizations
include an initial regulatory flexibility
analysis describing the regulation’s
impact on small entities. Such an
analysis need not be undertaken if the
agency has certified that the regulation
does not have a significant economic
impact on a substantial number of small
entities. 5 U.S.C. 605(b). FHFA has
considered the impact of the final
regulation under the Regulatory
Flexibility Act. FHFA certifies that the
regulation is not likely to have a
significant economic impact on a
substantial number of small business
entities because the regulation is
applicable to the internal operations and
legal obligations of FHFA and FHFA–
OIG.
List of Subjects in 12 CFR Part 1204
Authority and Issuance
For the reasons stated in the
preamble, the interim final regulation
amending 12 CFR part 1204 that was
published in the Federal Register at 76
FR 51869 on August 19, 2011, is
adopted as a final regulation with the
following technical changes:
PART 1204—PRIVACY ACT
IMPLEMENTATION
1. The authority citation for part 1204
continues to read as follows:
■
Authority: 5 U.S.C. 552a.
PART 1204—[AMENDED]
2. Amend part 1204 as follows:
■ a. Revise all references to ‘‘1700 G
Street, NW., Washington, DC 20552’’ to
read as ‘‘400 Seventh Street, SW., Eighth
Floor, Washington, DC 20024’’.
■ b. In § 1204.3(b) remove the facsimile
number ‘‘(202) 414–6425’’ and add in its
place ‘‘(202) 649–1073’’.
■ c. In § 1204.5(b)(2) remove the
facsimile number ‘‘(202) 414–8917’’ and
add in its place ‘‘(202) 649–1073’’.
■
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Dated: January 24, 2012.
Edward J. DeMarco,
Acting Director, Federal Housing Finance
Agency.
BILLING CODE 8070–01–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2012–0037; Directorate
Identifier 2012–NM–003–AD; Amendment
39–16935; AD 2012–02–12]
RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc. Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule; request for
comments.
AGENCY:
We are adopting a new
airworthiness directive (AD) for certain
Bombardier, Inc. Model DHC–8–400,
–401, and –402 airplanes. This AD
requires an inspection of a certain
alternating current (AC) power wire
bundle for damage, and repair if
necessary. Additionally, this AD
requires segregating the wire bundle
into two wire bundles and installing
Teflon tubing. This AD was prompted
by multiple reports of the loss of certain
AC systems caused by a burnt AC power
wire bundle. We are issuing this AD to
prevent the loss of ice protection
systems for the angle of attack vanes,
pitot probes, engine inlets, and
windshields, and consequent loss of or
misleading airspeed indication and
increased workload for the flight crew,
which could lead to loss of control of
the airplane.
DATES: This AD becomes effective
February 15, 2012.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in the AD
as of February 15, 2012.
We must receive comments on this
AD by March 16, 2012.
ADDRESSES: You may send comments by
any of the following methods:
• Federal eRulemaking Portal: Go to
https://www.regulations.gov. Follow the
instructions for submitting comments.
• Fax: (202) 493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations,
M–30, West Building Ground Floor,
Room W12–140, 1200 New Jersey
Avenue SE., Washington, DC 20590.
SUMMARY:
E:\FR\FM\31JAR1.SGM
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Federal Register / Vol. 77, No. 20 / Tuesday, January 31, 2012 / Rules and Regulations
• Hand Delivery: U.S. Department of
Transportation, Docket Operations,
M–30, West Building Ground Floor,
Room W12–140, 1200 New Jersey
Avenue SE., Washington, DC, between 9
a.m. and 5 p.m., Monday through
Friday, except Federal holidays.
Examining the AD Docket
You may examine the AD docket on
the Internet at https://
www.regulations.gov; or in person at the
Docket Operations office between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket
contains this AD, the regulatory
evaluation, any comments received, and
other information. The street address for
the Docket Operations office (telephone
(800) 647–5527) is in the ADDRESSES
section. Comments will be available in
the AD docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT:
Assata Dessaline, Aerospace Engineer,
Avionics and Flight Test Branch, ANE–
172, FAA, New York Aircraft
Certification Office, 1600 Stewart
Avenue, Suite 410, Westbury, New York
11590; telephone (516) 228–7301; fax
(516) 794–5531.
SUPPLEMENTARY INFORMATION:
Discussion
Transport Canada Civil Aviation
(TCCA), which is the aviation authority
for Canada, has issued Canadian
Airworthiness Directive CF–2011–46,
dated December 20, 2011 (referred to
after this as ‘‘the MCAI’’), to correct an
unsafe condition for the specified
products. The MCAI states:
wreier-aviles on DSK5TPTVN1PROD with RULES
There have been several reports of the loss
of certain Alternating Current (AC) systems
along with the tripping of associated circuit
breakers. During maintenance
troubleshooting, the same AC power wire
bundle was found burnt. All AC systems and
AC Generators could be affected by damage
to this AC power wire bundle resulting in the
loss of ice protection systems for the angle of
attack vanes, pitot probes, engine inlets or
windshields. In icing conditions, the loss of
the ice protection systems could affect
continued safe flight.
This [TCCA] Airworthiness Directive (AD)
mandates the detailed inspection [for
damage] of the AC power wire bundle [and
repair if necessary] and segregation of the
wires within the affected AC power wire
bundle to prevent a dual system loss [and
installing Teflon tubing].
The detailed inspection for damage
includes inspecting for any foreign
object damage (FOD), damage due to
sharp bends and kinking or
deterioration, insulation cracking,
evidence of heat damage to the
insulation, and chafing. The unsafe
condition is the loss of ice protection
systems for the angle of attack vanes,
VerDate Mar<15>2010
15:17 Jan 30, 2012
Jkt 226001
pitot probes, engine inlets, and
windshields, and consequent loss of or
misleading airspeed indication and
increased workload for the flight crew,
which could lead to loss of control of
the airplane. You may obtain further
information by examining the MCAI in
the AD docket.
Relevant Service Information
Bombardier has issued Service
Bulletin 84–24–52, dated November 22,
2011. The actions described in this
service information are intended to
correct the unsafe condition identified
in the MCAI.
Differences Between the AD and the
MCAI
Although the MCAI recommends
accomplishing the actions within 600
flight hours or 90 days, whichever
occurs first, after the effective date of
the MCAI, this AD requires
accomplishment within 400 flight hours
or 60 days, whichever occurs first, after
the effective date of this AD. We find
that a compliance time of 600 flight
hours or 90 days, whichever occurs first,
would not address the unsafe condition
soon enough to maintain an adequate
level of safety for the affected fleet. In
developing an appropriate compliance
time for this AD, we considered the
degree of urgency associated with
addressing the unsafe condition, the
upcoming inclement weather
conditions, and the maximum interval
of time allowable for all affected
airplanes to continue to operate without
compromising safety. We find that 400
flight hours or 60 days, whichever
occurs first, after the effective date of
this AD, to be an appropriate
compliance time to complete these
actions. This difference has been
coordinated with TCCA.
FAA’s Determination and Requirements
of This AD
This product has been approved by
the aviation authority of another
country, and is approved for operation
in the United States. Pursuant to our
bilateral agreement with the State of
Design Authority, we have been notified
of the unsafe condition described in the
MCAI and service information
referenced above. We are issuing this
AD because we evaluated all pertinent
information and determined the unsafe
condition exists and is likely to exist or
develop on other products of the same
type design.
FAA’s Determination of the Effective
Date
An unsafe condition exists that
requires the immediate adoption of this
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4647
AD. The FAA has found that the risk to
the flying public justifies waiving notice
and comment prior to adoption of this
rule because there have been several
reports of the loss of certain AC systems
along with the tripping of associated
circuit breakers. During maintenance
troubleshooting, the same AC power
wire bundle was found burnt. All AC
systems and AC Generators could be
affected by damage to this AC power
wire bundle resulting in the loss of ice
protection systems for the angle of
attack vanes, pitot probes, engine inlets
or windshields. In icing conditions, the
loss of the ice protection systems could
affect continued safe flight. Therefore,
we determined that notice and
opportunity for public comment before
issuing this AD are impracticable and
that good cause exists for making this
amendment effective in fewer than
30 days.
Comments Invited
This AD is a final rule that involves
requirements affecting flight safety, and
we did not precede it by notice and
opportunity for public comment. We
invite you to send any written relevant
data, views, or arguments about this AD.
Send your comments to an address
listed under the ADDRESSES section.
Include ‘‘Docket No. FAA–2012–0037;
Directorate Identifier 2012–NM–003–
AD’’ at the beginning of your comments.
We specifically invite comments on the
overall regulatory, economic,
environmental, and energy aspects of
this AD. We will consider all comments
received by the closing date and may
amend this AD because of those
comments.
We will post all comments we
receive, without change, to https://
www.regulations.gov, including any
personal information you provide. We
will also post a report summarizing each
substantive verbal contact we receive
about this AD.
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
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4648
Federal Register / Vol. 77, No. 20 / Tuesday, January 31, 2012 / Rules and Regulations
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 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 this proposed 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);
3. Will not affect intrastate aviation in
Alaska; and
4. 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.
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:
PART 39—AIRWORTHINESS
DIRECTIVES
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. The FAA amends § 39.13 by adding
the following new AD:
■
wreier-aviles on DSK5TPTVN1PROD with RULES
2012–02–12 Bombardier, Inc.: Amendment
39–16935. Docket No. FAA–2012–0037;
Directorate Identifier 2012–NM–003–AD.
(a) Effective Date
This airworthiness directive (AD) becomes
effective February 15, 2012.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Bombardier, Inc. Model
DHC–8–400, –401, and –402 airplanes;
VerDate Mar<15>2010
15:17 Jan 30, 2012
Jkt 226001
certificated in any category; serial numbers
4095 through 4391 inclusive.
(d) Subject
Air Transport Association (ATA) of
America Code 24: Electrical Power.
(e) Reason
This AD was prompted by multiple reports
of the loss of certain alternating current (AC)
systems caused by a burnt AC power wire
bundle. We are issuing this AD to prevent the
loss of ice protection systems for the angle of
attack vanes, pitot probes, engine inlets, and
windshields, and consequent loss of or
misleading airspeed indication and increased
workload for the flight crew, which could
lead to loss of control of the airplane.
(f) Compliance
You are responsible for having the actions
required by this AD performed within the
compliance times specified, unless the
actions have already been done.
(g) Inspection and Corrective Actions
Within 400 flight hours or 60 days,
whichever occurs first, after the effective date
of this AD, do the actions specified in
paragraphs (g)(1) and (g)(2) of this AD.
(1) Do a detailed inspection of the affected
AC power wire bundle for damage (any
foreign object damage (FOD), damage due to
sharp bends and kinking or deterioration,
insulation cracking, evidence of heat damage
to the insulation, and chafing) and do all
applicable repairs, in accordance with the
Accomplishment Instructions of Bombardier
Service Bulletin 84–24–52, dated November
22, 2011. Do all applicable repairs before
further flight.
(2) Segregate the AC power wire bundle
into two bundles and install Teflon tubing,
in accordance with the Accomplishment
Instructions of Bombardier Service Bulletin
84–24–52, dated November 22, 2011.
(h) Other FAA AD Provisions
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, New York Aircraft
Certification Office (ACO), ANE–170, FAA,
has the authority to approve AMOCs for this
AD, if requested using the procedures found
in 14 CFR 39.19. In accordance with 14 CFR
39.19, send your request to your principal
inspector or local Flight Standards District
Office, as appropriate. If sending information
directly to the ACO, send it to Attn: Program
Manager, Continuing Operational Safety,
FAA, New York ACO, 1600 Stewart Avenue,
Suite 410, Westbury, New York 11590;
telephone (516) 228–7300; fax (516) 794–
5531. Before using any approved AMOC,
notify your appropriate principal inspector,
or lacking a principal inspector, the manager
of the local flight standards district office/
certificate holding district office. The AMOC
approval letter must specifically reference
this AD.
(2) Airworthy Product: For any requirement
in this AD to obtain corrective actions from
a manufacturer or other source, use these
actions if they are FAA-approved. Corrective
actions are considered FAA-approved if they
are approved by the State of Design Authority
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Frm 00006
Fmt 4700
Sfmt 4700
(or their delegated agent). You are required
to assure the product is airworthy before it
is returned to service.
(i) Related Information
Refer to MCAI Canadian Airworthiness
Directive CF–2011–46, dated December 20,
2011; and Bombardier Service Bulletin 84–
24–52, dated November 22, 2011; for related
information.
(j) Material Incorporated by Reference
(1) You must use the following service
information to do the actions required by this
AD, unless the AD specifies otherwise. The
Director of the Federal Register approved the
incorporation by reference (IBR) of the
following service information under 5 U.S.C.
552(a) and 1 CFR part 51:
(i) Bombardier Service Bulletin 84–24–52,
dated November 22, 2011.
(2) For Bombardier, Inc. service
information identified in this AD, contact
Bombardier, Inc., Q–Series Technical Help
Desk, 123 Garratt Boulevard, Toronto,
Ontario M3K 1Y5, Canada; telephone (416)
375–4000; fax (416) 375–4539; email
thd.qseries@aero.bombardier.com; Internet
https://www.bombardier.com.
(3) You may review copies of the service
information at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue SW., Renton,
Washington. For information on the
availability of this material at the FAA, call
(425) 227–1221.
(4) You may also review copies of the
service information that is incorporated by
reference at the National Archives and
Records Administration (NARA). For
information on the availability of this
material at an NARA facility, 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 January
23, 2012.
Kalene C. Yanamura,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2012–1993 Filed 1–30–12; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2009–0994; Directorate
Identifier 2009–NE–39–AD; Amendment 39–
16934; AD 2012–02–11]
RIN 2120–AA64
Airworthiness Directives; Rolls-Royce
plc (RR) RB211–535 Series Turbofan
Engine
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
We are superseding an
existing airworthiness directive (AD) for
SUMMARY:
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]]>Agencies
[Federal Register Volume 77, Number 20 (Tuesday, January 31, 2012)]
[Rules and Regulations]
[Pages 4646-4648]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-1993]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2012-0037; Directorate Identifier 2012-NM-003-AD;
Amendment 39-16935; AD 2012-02-12]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc. Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule; request for comments.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Bombardier, Inc. Model DHC-8-400, -401, and -402 airplanes. This AD
requires an inspection of a certain alternating current (AC) power wire
bundle for damage, and repair if necessary. Additionally, this AD
requires segregating the wire bundle into two wire bundles and
installing Teflon tubing. This AD was prompted by multiple reports of
the loss of certain AC systems caused by a burnt AC power wire bundle.
We are issuing this AD to prevent the loss of ice protection systems
for the angle of attack vanes, pitot probes, engine inlets, and
windshields, and consequent loss of or misleading airspeed indication
and increased workload for the flight crew, which could lead to loss of
control of the airplane.
DATES: This AD becomes effective February 15, 2012.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in the AD as of February 15,
2012.
We must receive comments on this AD by March 16, 2012.
ADDRESSES: You may send comments by any of the following methods:
Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments.
Fax: (202) 493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE., Washington, DC 20590.
[[Page 4647]]
Hand Delivery: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
Examining the AD Docket
You may examine the AD docket on the Internet at https://www.regulations.gov; or in person at the Docket Operations office
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains this AD, the regulatory evaluation,
any comments received, and other information. The street address for
the Docket Operations office (telephone (800) 647-5527) is in the
ADDRESSES section. Comments will be available in the AD docket shortly
after receipt.
FOR FURTHER INFORMATION CONTACT: Assata Dessaline, Aerospace Engineer,
Avionics and Flight Test Branch, ANE-172, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New
York 11590; telephone (516) 228-7301; fax (516) 794-5531.
SUPPLEMENTARY INFORMATION:
Discussion
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued Canadian Airworthiness Directive CF-
2011-46, dated December 20, 2011 (referred to after this as ``the
MCAI''), to correct an unsafe condition for the specified products. The
MCAI states:
There have been several reports of the loss of certain
Alternating Current (AC) systems along with the tripping of
associated circuit breakers. During maintenance troubleshooting, the
same AC power wire bundle was found burnt. All AC systems and AC
Generators could be affected by damage to this AC power wire bundle
resulting in the loss of ice protection systems for the angle of
attack vanes, pitot probes, engine inlets or windshields. In icing
conditions, the loss of the ice protection systems could affect
continued safe flight.
This [TCCA] Airworthiness Directive (AD) mandates the detailed
inspection [for damage] of the AC power wire bundle [and repair if
necessary] and segregation of the wires within the affected AC power
wire bundle to prevent a dual system loss [and installing Teflon
tubing].
The detailed inspection for damage includes inspecting for any foreign
object damage (FOD), damage due to sharp bends and kinking or
deterioration, insulation cracking, evidence of heat damage to the
insulation, and chafing. The unsafe condition is the loss of ice
protection systems for the angle of attack vanes, pitot probes, engine
inlets, and windshields, and consequent loss of or misleading airspeed
indication and increased workload for the flight crew, which could lead
to loss of control of the airplane. You may obtain further information
by examining the MCAI in the AD docket.
Relevant Service Information
Bombardier has issued Service Bulletin 84-24-52, dated November 22,
2011. The actions described in this service information are intended to
correct the unsafe condition identified in the MCAI.
Differences Between the AD and the MCAI
Although the MCAI recommends accomplishing the actions within 600
flight hours or 90 days, whichever occurs first, after the effective
date of the MCAI, this AD requires accomplishment within 400 flight
hours or 60 days, whichever occurs first, after the effective date of
this AD. We find that a compliance time of 600 flight hours or 90 days,
whichever occurs first, would not address the unsafe condition soon
enough to maintain an adequate level of safety for the affected fleet.
In developing an appropriate compliance time for this AD, we considered
the degree of urgency associated with addressing the unsafe condition,
the upcoming inclement weather conditions, and the maximum interval of
time allowable for all affected airplanes to continue to operate
without compromising safety. We find that 400 flight hours or 60 days,
whichever occurs first, after the effective date of this AD, to be an
appropriate compliance time to complete these actions. This difference
has been coordinated with TCCA.
FAA's Determination and Requirements of This AD
This product has been approved by the aviation authority of another
country, and is approved for operation in the United States. Pursuant
to our bilateral agreement with the State of Design Authority, we have
been notified of the unsafe condition described in the MCAI and service
information referenced above. We are issuing this AD because we
evaluated all pertinent information and determined the unsafe condition
exists and is likely to exist or develop on other products of the same
type design.
FAA's Determination of the Effective Date
An unsafe condition exists that requires the immediate adoption of
this AD. The FAA has found that the risk to the flying public justifies
waiving notice and comment prior to adoption of this rule because there
have been several reports of the loss of certain AC systems along with
the tripping of associated circuit breakers. During maintenance
troubleshooting, the same AC power wire bundle was found burnt. All AC
systems and AC Generators could be affected by damage to this AC power
wire bundle resulting in the loss of ice protection systems for the
angle of attack vanes, pitot probes, engine inlets or windshields. In
icing conditions, the loss of the ice protection systems could affect
continued safe flight. Therefore, we determined that notice and
opportunity for public comment before issuing this AD are impracticable
and that good cause exists for making this amendment effective in fewer
than 30 days.
Comments Invited
This AD is a final rule that involves requirements affecting flight
safety, and we did not precede it by notice and opportunity for public
comment. We invite you to send any written relevant data, views, or
arguments about this AD. Send your comments to an address listed under
the ADDRESSES section. Include ``Docket No. FAA-2012-0037; Directorate
Identifier 2012-NM-003-AD'' at the beginning of your comments. We
specifically invite comments on the overall regulatory, economic,
environmental, and energy aspects of this AD. We will consider all
comments received by the closing date and may amend this AD because of
those comments.
We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this AD.
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
[[Page 4648]]
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 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 this proposed
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);
3. Will not affect intrastate aviation in Alaska; and
4. 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.
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:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new AD:
2012-02-12 Bombardier, Inc.: Amendment 39-16935. Docket No. FAA-
2012-0037; Directorate Identifier 2012-NM-003-AD.
(a) Effective Date
This airworthiness directive (AD) becomes effective February 15,
2012.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Bombardier, Inc. Model DHC-8-400, -401, and -
402 airplanes; certificated in any category; serial numbers 4095
through 4391 inclusive.
(d) Subject
Air Transport Association (ATA) of America Code 24: Electrical
Power.
(e) Reason
This AD was prompted by multiple reports of the loss of certain
alternating current (AC) systems caused by a burnt AC power wire
bundle. We are issuing this AD to prevent the loss of ice protection
systems for the angle of attack vanes, pitot probes, engine inlets,
and windshields, and consequent loss of or misleading airspeed
indication and increased workload for the flight crew, which could
lead to loss of control of the airplane.
(f) Compliance
You are responsible for having the actions required by this AD
performed within the compliance times specified, unless the actions
have already been done.
(g) Inspection and Corrective Actions
Within 400 flight hours or 60 days, whichever occurs first,
after the effective date of this AD, do the actions specified in
paragraphs (g)(1) and (g)(2) of this AD.
(1) Do a detailed inspection of the affected AC power wire
bundle for damage (any foreign object damage (FOD), damage due to
sharp bends and kinking or deterioration, insulation cracking,
evidence of heat damage to the insulation, and chafing) and do all
applicable repairs, in accordance with the Accomplishment
Instructions of Bombardier Service Bulletin 84-24-52, dated November
22, 2011. Do all applicable repairs before further flight.
(2) Segregate the AC power wire bundle into two bundles and
install Teflon tubing, in accordance with the Accomplishment
Instructions of Bombardier Service Bulletin 84-24-52, dated November
22, 2011.
(h) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, New
York Aircraft Certification Office (ACO), ANE-170, FAA, has the
authority to approve AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19,
send your request to your principal inspector or local Flight
Standards District Office, as appropriate. If sending information
directly to the ACO, send it to Attn: Program Manager, Continuing
Operational Safety, FAA, New York ACO, 1600 Stewart Avenue, Suite
410, Westbury, New York 11590; telephone (516) 228-7300; fax (516)
794-5531. Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the local flight standards district office/certificate holding
district office. The AMOC approval letter must specifically
reference this AD.
(2) Airworthy Product: For any requirement in this AD to obtain
corrective actions from a manufacturer or other source, use these
actions if they are FAA-approved. Corrective actions are considered
FAA-approved if they are approved by the State of Design Authority
(or their delegated agent). You are required to assure the product
is airworthy before it is returned to service.
(i) Related Information
Refer to MCAI Canadian Airworthiness Directive CF-2011-46, dated
December 20, 2011; and Bombardier Service Bulletin 84-24-52, dated
November 22, 2011; for related information.
(j) Material Incorporated by Reference
(1) You must use the following service information to do the
actions required by this AD, unless the AD specifies otherwise. The
Director of the Federal Register approved the incorporation by
reference (IBR) of the following service information under 5 U.S.C.
552(a) and 1 CFR part 51:
(i) Bombardier Service Bulletin 84-24-52, dated November 22,
2011.
(2) For Bombardier, Inc. service information identified in this
AD, contact Bombardier, Inc., Q-Series Technical Help Desk, 123
Garratt Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone (416)
375-4000; fax (416) 375-4539; email thd.qseries@aero.bombardier.com;
Internet https://www.bombardier.com.
(3) You may review copies of the service information at the FAA,
Transport Airplane Directorate, 1601 Lind Avenue SW., Renton,
Washington. For information on the availability of this material at
the FAA, call (425) 227-1221.
(4) You may also review copies of the service information that
is incorporated by reference at the National Archives and Records
Administration (NARA). For information on the availability of this
material at an NARA facility, 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 January 23, 2012.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2012-1993 Filed 1-30-12; 8:45 am]
BILLING CODE 4910-13-P
