Airworthiness Directives; Bombardier Model DHC-8-400 Series Airplanes, 46317-46319 [E9-20836]
Download as PDF
Federal Register / Vol. 74, No. 173 / Wednesday, September 9, 2009 / Rules and Regulations
airworthiness.A330-A340@airbus.com;
Internet https://www.airbus.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 or 425–227–1152.
(4) You may also review copies of the
service information that is incorporated by
reference at the National Archives and
Records Administration (NARA). For
46317
information on the availability of this
material at NARA, call 202–741–6030, or go
to: https://www.archives.gov/federal_register/
code_of_federal_regulations/ibr
_locations.html.
TABLE 4—MATERIAL INCORPORATED BY REFERENCE
Service Bulletin
Airbus
Airbus
Airbus
Airbus
Mandatory Service Bulletin A330–27A3154, excluding Appendix 1 ...................................
Mandatory Service Bulletin A340–27A4154, excluding Appendix 1 ...................................
Service Bulletin A330–27–3110 ..........................................................................................
Service Bulletin A340–27–4115 ..........................................................................................
Issued in Renton, Washington, on August
26, 2009.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E9–21408 Filed 9–8–09; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2009–0526; Directorate
Identifier 2009–NM–029–AD; Amendment
39–16008; AD 2009–18–12]
RIN 2120–AA64
Airworthiness Directives; Bombardier
Model DHC–8–400 Series Airplanes
AGENCY: Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
SUMMARY: We are adopting a new
airworthiness directive (AD) for the
products listed above. This AD results
from mandatory continuing
airworthiness information (MCAI)
originated by an aviation authority of
another country to identify and correct
an unsafe condition on an aviation
product. The MCAI describes the unsafe
condition as:
jlentini on DSKJ8SOYB1PROD with RULES
Revision level
Four aircraft have experienced a dual AC
[alternating current] generator shutdown,
caused by a broken propeller de-ice bus bar
which short-circuited with the backplate
assembly.
* * * A short circuit can cause a dual AC
generator shutdown that, particularly in
conjunction with an engine failure in icing
conditions, could result in reduced
controllability of the aircraft.
*
*
*
*
*
Reduced controllability of the
airplane in certain operating conditions
affects continued safe flight and
landing. We are issuing this AD to
VerDate Nov<24>2008
16:13 Sep 08, 2009
Jkt 217001
require actions to correct the unsafe
condition on these products.
DATES: This AD becomes effective
October 14, 2009.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of October 14, 2009.
ADDRESSES: You may examine the AD
docket on the Internet at https://
www.regulations.gov or in person at the
U.S. Department of Transportation,
Docket Operations, M–30, West
Building Ground Floor, Room W12–140,
1200 New Jersey Avenue, SE.,
Washington, DC.
FOR FURTHER INFORMATION CONTACT:
Wing Chan, Aerospace Engineer,
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
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would
apply to the specified products. That
NPRM was published in the Federal
Register on June 10, 2009 (74 FR 27476).
That NPRM proposed to correct an
unsafe condition for the specified
products. The MCAI states:
Four aircraft have experienced a dual AC
[alternating current] generator shutdown,
caused by a broken propeller de-ice bus bar
which short-circuited with the backplate
assembly.
It was subsequently determined that any
friction or contact between a propeller de-ice
bus bar and the backplate assembly can cause
an intermittent short circuit. Such a short
circuit can cause a dual AC generator
shutdown that, particularly in conjunction
with an engine failure in icing conditions,
could result in reduced controllability of the
aircraft.
This [Transport Canada Civil Aviation]
directive mandates revision of the Airplane
Flight Manual (AFM) to introduce a
procedure that restores AC power following
PO 00000
Frm 00015
Fmt 4700
Sfmt 4700
01
01
03
01
Date
July 25, 2008.
July 25, 2008.
September 3, 2008.
March 2, 2007.
a failure of No. 1 and No. 2 AC generators
with propeller de-ice on. Additionally, in
order to prevent similar dual AC generator
shutdowns, it mandates the application of
sealant as insulation between the propeller
de-ice bus bars and the backplate assembly.
Reduced controllability of the
airplane in certain operating conditions
affects continued safe flight and
landing. You may obtain further
information by examining the MCAI in
the AD docket.
Comments
We gave the public the opportunity to
participate in developing this AD. We
received no comments on the NPRM or
on the determination of the cost to the
public.
Conclusion
We reviewed the available data and
determined that air safety and the
public interest require adopting the AD
as proposed.
Differences Between This AD and the
MCAI or Service Information
We have reviewed the MCAI and
related service information and, in
general, agree with their substance. But
we might have found it necessary to use
different words from those in the MCAI
to ensure the AD is clear for U.S.
operators and is enforceable. In making
these changes, we do not intend to differ
substantively from the information
provided in the MCAI and related
service information.
We might also have required different
actions in this AD from those in the
MCAI in order to follow our FAA
policies. Any such differences are
highlighted in a Note within the AD.
Costs of Compliance
We estimate that this AD will affect
62 products of U.S. registry. We also
estimate that it will take about 6 workhours per product to comply with the
basic requirements of this AD. The
average labor rate is $80 per work-hour.
Based on these figures, we estimate the
E:\FR\FM\09SER1.SGM
09SER1
46318
Federal Register / Vol. 74, No. 173 / Wednesday, September 9, 2009 / Rules and Regulations
cost of this AD to the U.S. operators to
be $29,760, or $480 per product.
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 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 AD:
1. Is not a ‘‘significant regulatory
action’’ under Executive Order 12866;
2. Is not a ‘‘significant rule’’ under the
DOT Regulatory Policies and Procedures
(44 FR 11034, February 26, 1979); and
3. Will not have a significant
economic impact, positive or negative,
on a substantial number of small entities
under the criteria of the Regulatory
Flexibility Act.
We prepared a regulatory evaluation
of the estimated costs to comply with
this AD and placed it in the AD docket.
jlentini on DSKJ8SOYB1PROD with RULES
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 the NPRM, 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.
VerDate Nov<24>2008
16:13 Sep 08, 2009
Jkt 217001
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:
■
2009–18–12 Bombardier, Inc. (Formerly de
Havilland, Inc.): Amendment 39–16008.
Docket No. FAA–2009–0526; Directorate
Identifier 2009–NM–029–AD.
Effective Date
(a) This airworthiness directive (AD)
becomes effective October 14, 2009.
Affected ADs
(b) None.
Subject
(d) Air Transport Association (ATA) of
America Code 61: Propellers/Propulsors.
Reason
(e) The mandatory continuing
airworthiness information (MCAI) states:
Four aircraft have experienced a dual AC
[alternating current] generator shutdown,
caused by a broken propeller de-ice bus bar
which short-circuited with the backplate
assembly.
It was subsequently determined that any
friction or contact between a propeller de-ice
bus bar and the backplate assembly can cause
an intermittent short circuit. Such a short
circuit can cause a dual AC generator
shutdown that, particularly in conjunction
with an engine failure in icing conditions,
could result in reduced controllability of the
aircraft.
This [Transport Canada Civil Aviation]
directive mandates revision of the Airplane
Flight Manual (AFM) to introduce a
procedure that restores AC power following
a failure of No. 1 and No. 2 AC generators
with propeller de-ice on. Additionally, in
order to prevent similar dual AC generator
shutdowns, it mandates the application of
sealant as insulation between the propeller
de-ice bus bars and the backplate assembly.
Reduced controllability of the airplane in
certain operating conditions affects
continued safe flight and landing.
Frm 00016
(f) Unless already done, do the following
actions.
(1) Within 30 days after the effective date
of this AD, revise the Limitations Section of
the Bombardier Dash 8 Q400 AFM, PSM 1–
84–1A, by inserting a copy of Bombardier
Dash 8 Q400 Temporary Amendment (TA)
14, Issue 1, dated May 10, 2006. When the
information in Bombardier TA 14, Issue 1,
dated May 10, 2006, is included in the
general revisions of the AFM, the general
revisions may be inserted in the AFM and the
TA may be removed.
(2) Within 5,000 flight hours after the
effective date of this AD: Apply sealant
between the bus bar assemblies and the
backplate assembly by incorporating
Bombardier DHC–8–400 Modification
Summary 4–163047, Revision B, dated
August 22, 2008, in accordance with the
Accomplishment Instructions of Bombardier
Service Bulletin 84–61–03, Revision ‘A,’
dated September 18, 2008.
(3) Incorporating Bombardier DHC–8–400
Modification Summary Package 4–163047
before the effective date of this AD in
accordance with Bombardier Service Bulletin
84–61–03, dated April 27, 2007, is
considered acceptable for compliance with
the requirements of paragraph (f)(2) of this
AD.
FAA AD Differences
Applicability
(c) This AD applies to Bombardier Model
DHC–8–400, DHC–8–401, and DHC–8–402
series airplanes, certificated in any category,
serial numbers 4001, 4003, 4004, 4006, and
4008 through 4154 inclusive.
PO 00000
Actions and Compliance
Fmt 4700
Sfmt 4700
Note 1: This AD differs from the MCAI
and/or service information as follows: No
differences.
Other FAA AD Provisions
(g) The following provisions also apply to
this AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, New York Aircraft
Certification Office (ACO), FAA, has the
authority to approve AMOCs for this AD, if
requested using the procedures found in 14
CFR 39.19. Send information to ATTN: Wing
Chan, Aerospace Engineer, Systems and
Flight Test Branch, ANE–172, FAA, New
York ACO, 1600 Stewart Avenue, Suite 410,
Westbury, New York 11590; telephone (516)
228–7311; fax (516) 794–5531. Before using
any approved AMOC on any airplane to
which the AMOC applies, notify your
principal maintenance inspector (PMI) or
principal avionics inspector (PAI), as
appropriate, or lacking a principal inspector,
your local Flight Standards District Office.
(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 FAAapproved 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.
(3) Reporting Requirements: For any
reporting requirement in this AD, under the
provisions of the Paperwork Reduction Act,
the Office of Management and Budget (OMB)
has approved the information collection
requirements and has assigned OMB Control
Number 2120–0056.
E:\FR\FM\09SER1.SGM
09SER1
Federal Register / Vol. 74, No. 173 / Wednesday, September 9, 2009 / Rules and Regulations
Related Information
(h) Refer to MCAI Canadian Airworthiness
Directive CF–2009–01, dated January 19,
2009; Bombardier Dash 8 Q400 TA 14, Issue
1, dated May 10, 2006; and Bombardier
Service Bulletin 84–61–03, Revision ‘A,’
dated September 18, 2008; for related
information.
Material Incorporated by Reference
(i) You must use Bombardier Dash 8 Q400
Temporary Amendment 14, Issue 1, dated
May 10, 2006; and Bombardier Service
Bulletin 84–61–03, Revision ‘A,’ dated
September 18, 2008; as applicable; to do the
actions required by this AD, unless the AD
specifies otherwise.
(1) The Director of the Federal Register
approved the incorporation by reference of
this service information under 5 U.S.C.
552(a) and 1 CFR part 51.
(2) For service information identified in
ˆ
this AD, contact Bombardier, Inc., 400 Cote´
Vertu Road West, Dorval, Quebec H4S 1Y9,
Canada; telephone 514–855–5000; fax 514–
855–7401; e-mail
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 or 425–227–1152.
(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 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 August
18, 2009.
Stephen P. Boyd,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. E9–20836 Filed 9–8–09; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2009–0563; Directorate
Identifier 2008–NM–180–AD; Amendment
39–16005; AD 2009–18–09]
jlentini on DSKJ8SOYB1PROD with RULES
Airworthiness Directives; Fokker
Model F.28 Mark 0070 and 0100
Airplanes
AGENCY: Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
SUMMARY: We are superseding an
existing airworthiness directive (AD) for
16:13 Sep 08, 2009
Jkt 217001
A recent design review has been carried
out on the F28 Mark 0070/0100 fuel system
in accordance with the guidelines related to
FAA SFAR 88 [Special Federal Aviation
Regulation No. 88] (Fuel Tank Safety
Program) and JAA [Joint Aviation
Authorities] INT/POL/25/12. The review
revealed that under certain failure
conditions, prolonged dry running of the fuel
transfer pumps may result in an ignition
source in the centre wing fuel tank. This
condition, if not corrected, could lead to
ignition of flammable fuel vapors, resulting
in fuel tank explosion and consequent loss of
the aircraft.
*
*
*
*
*
We are issuing this AD to require
actions to correct the unsafe condition
on these products.
DATES: This AD becomes effective
October 14, 2009.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of October 14, 2009.
On October 27, 1999 (64 FR 51202,
September 22, 1999), the Director of the
Federal Register approved the
incorporation by reference of certain
other publications listed in this AD.
ADDRESSES: You may examine the AD
docket on the Internet at https://
www.regulations.gov or in person at the
U.S. Department of Transportation,
Docket Operations, M–30, West
Building Ground Floor, Room W12–140,
1200 New Jersey Avenue, SE.,
Washington, DC.
FOR FURTHER INFORMATION CONTACT: Tom
Rodriguez, Aerospace Engineer,
International Branch, ANM–116,
Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone
(425) 227–1137; fax (425) 227–1149.
SUPPLEMENTARY INFORMATION:
Discussion
RIN 2120–AA64
VerDate Nov<24>2008
the products listed above. This AD
results from mandatory continuing
airworthiness information (MCAI)
originated by an aviation authority of
another country to identify and correct
an unsafe condition on an aviation
product. The MCAI describes the unsafe
condition as:
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would
apply to the specified products. That
NPRM was published in the Federal
Register on June 19, 2009 (74 FR 29144),
and proposed to supersede AD 99–20–
01, Amendment 39–11329 (64 FR
51202, September 22, 1999). That NPRM
proposed to correct an unsafe condition
for the specified products. The MCAI
states:
PO 00000
Frm 00017
Fmt 4700
Sfmt 4700
46319
A recent design review has been carried
out on the F28 Mark 0070/0100 fuel system
in accordance with the guidelines related to
FAA SFAR 88 [Special Federal Aviation
Regulation No. 88] (Fuel Tank Safety
Program) and JAA [Joint Aviation
Authorities] INT/POL/25/12. The review
revealed that under certain failure
conditions, prolonged dry running of the fuel
transfer pumps may result in an ignition
source in the centre wing fuel tank. This
condition, if not corrected, could lead to
ignition of flammable fuel vapors, resulting
in fuel tank explosion and consequent loss of
the aircraft.
To address and correct this unsafe
condition, new software (version V13.55) has
been developed for the Flight Warning
Computer (FWC). This software update
introduces a decreased time delay of the
centre wing fuel tank low pressure alert from
15 minutes to 60 seconds, to stop prolonged
dry running of the fuel transfer pumps.
For the reasons described above, this EASA
Airworthiness Directive (AD) requires the
replacement of the FWC with a modified
unit, incorporating software version V13.55.
The corrective actions include
revising the airplane flight manual
(AFM) to change certain indications and
warnings; installing new software for
the multifunction display unit (MFDU);
and installing a new resistor in the
thrust reverser indicator and control
system, or an improved thrust reverser
unlock indication relay. You may obtain
further information by examining the
MCAI in the AD docket.
Comments
We gave the public the opportunity to
participate in developing this AD. We
received no comments on the NPRM or
on the determination of the cost to the
public.
Conclusion
We reviewed the available data and
determined that air safety and the
public interest require adopting the AD
as proposed.
Differences Between This AD and the
MCAI or Service Information
We have reviewed the MCAI and
related service information and, in
general, agree with their substance. But
we might have found it necessary to use
different words from those in the MCAI
to ensure the AD is clear for U.S.
operators and is enforceable. In making
these changes, we do not intend to differ
substantively from the information
provided in the MCAI and related
service information.
We might also have required different
actions in this AD from those in the
MCAI in order to follow our FAA
policies. Any such differences are
highlighted in a note within the AD.
E:\FR\FM\09SER1.SGM
09SER1
Agencies
[Federal Register Volume 74, Number 173 (Wednesday, September 9, 2009)]
[Rules and Regulations]
[Pages 46317-46319]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E9-20836]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2009-0526; Directorate Identifier 2009-NM-029-AD;
Amendment 39-16008; AD 2009-18-12]
RIN 2120-AA64
Airworthiness Directives; Bombardier Model DHC-8-400 Series
Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for the
products listed above. This AD results from mandatory continuing
airworthiness information (MCAI) originated by an aviation authority of
another country to identify and correct an unsafe condition on an
aviation product. The MCAI describes the unsafe condition as:
Four aircraft have experienced a dual AC [alternating current]
generator shutdown, caused by a broken propeller de-ice bus bar
which short-circuited with the backplate assembly.
* * * A short circuit can cause a dual AC generator shutdown
that, particularly in conjunction with an engine failure in icing
conditions, could result in reduced controllability of the aircraft.
* * * * *
Reduced controllability of the airplane in certain operating
conditions affects continued safe flight and landing. We are issuing
this AD to require actions to correct the unsafe condition on these
products.
DATES: This AD becomes effective October 14, 2009.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of October 14,
2009.
ADDRESSES: You may examine the AD docket on the Internet at https://www.regulations.gov or in person at the U.S. Department of
Transportation, Docket Operations, M-30, West Building Ground Floor,
Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC.
FOR FURTHER INFORMATION CONTACT: Wing Chan, Aerospace Engineer,
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
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would apply to the specified products.
That NPRM was published in the Federal Register on June 10, 2009 (74 FR
27476). That NPRM proposed to correct an unsafe condition for the
specified products. The MCAI states:
Four aircraft have experienced a dual AC [alternating current]
generator shutdown, caused by a broken propeller de-ice bus bar
which short-circuited with the backplate assembly.
It was subsequently determined that any friction or contact
between a propeller de-ice bus bar and the backplate assembly can
cause an intermittent short circuit. Such a short circuit can cause
a dual AC generator shutdown that, particularly in conjunction with
an engine failure in icing conditions, could result in reduced
controllability of the aircraft.
This [Transport Canada Civil Aviation] directive mandates
revision of the Airplane Flight Manual (AFM) to introduce a
procedure that restores AC power following a failure of No. 1 and
No. 2 AC generators with propeller de-ice on. Additionally, in order
to prevent similar dual AC generator shutdowns, it mandates the
application of sealant as insulation between the propeller de-ice
bus bars and the backplate assembly.
Reduced controllability of the airplane in certain operating
conditions affects continued safe flight and landing. You may obtain
further information by examining the MCAI in the AD docket.
Comments
We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM or on the determination of
the cost to the public.
Conclusion
We reviewed the available data and determined that air safety and
the public interest require adopting the AD as proposed.
Differences Between This AD and the MCAI or Service Information
We have reviewed the MCAI and related service information and, in
general, agree with their substance. But we might have found it
necessary to use different words from those in the MCAI to ensure the
AD is clear for U.S. operators and is enforceable. In making these
changes, we do not intend to differ substantively from the information
provided in the MCAI and related service information.
We might also have required different actions in this AD from those
in the MCAI in order to follow our FAA policies. Any such differences
are highlighted in a Note within the AD.
Costs of Compliance
We estimate that this AD will affect 62 products of U.S. registry.
We also estimate that it will take about 6 work-hours per product to
comply with the basic requirements of this AD. The average labor rate
is $80 per work-hour. Based on these figures, we estimate the
[[Page 46318]]
cost of this AD to the U.S. operators to be $29,760, or $480 per
product.
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 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 AD:
1. Is not a ``significant regulatory action'' under Executive Order
12866;
2. Is not a ``significant rule'' under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979); and
3. Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
We prepared a regulatory evaluation of the estimated costs to
comply with this AD and placed it in the AD docket.
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 the NPRM, 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.
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]
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2. The FAA amends Sec. 39.13 by adding the following new AD:
2009-18-12 Bombardier, Inc. (Formerly de Havilland, Inc.): Amendment
39-16008. Docket No. FAA-2009-0526; Directorate Identifier 2009-NM-
029-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective October
14, 2009.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier Model DHC-8-400, DHC-8-401,
and DHC-8-402 series airplanes, certificated in any category, serial
numbers 4001, 4003, 4004, 4006, and 4008 through 4154 inclusive.
Subject
(d) Air Transport Association (ATA) of America Code 61:
Propellers/Propulsors.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
Four aircraft have experienced a dual AC [alternating current]
generator shutdown, caused by a broken propeller de-ice bus bar
which short-circuited with the backplate assembly.
It was subsequently determined that any friction or contact
between a propeller de-ice bus bar and the backplate assembly can
cause an intermittent short circuit. Such a short circuit can cause
a dual AC generator shutdown that, particularly in conjunction with
an engine failure in icing conditions, could result in reduced
controllability of the aircraft.
This [Transport Canada Civil Aviation] directive mandates
revision of the Airplane Flight Manual (AFM) to introduce a
procedure that restores AC power following a failure of No. 1 and
No. 2 AC generators with propeller de-ice on. Additionally, in order
to prevent similar dual AC generator shutdowns, it mandates the
application of sealant as insulation between the propeller de-ice
bus bars and the backplate assembly.
Reduced controllability of the airplane in certain operating
conditions affects continued safe flight and landing.
Actions and Compliance
(f) Unless already done, do the following actions.
(1) Within 30 days after the effective date of this AD, revise
the Limitations Section of the Bombardier Dash 8 Q400 AFM, PSM 1-84-
1A, by inserting a copy of Bombardier Dash 8 Q400 Temporary
Amendment (TA) 14, Issue 1, dated May 10, 2006. When the information
in Bombardier TA 14, Issue 1, dated May 10, 2006, is included in the
general revisions of the AFM, the general revisions may be inserted
in the AFM and the TA may be removed.
(2) Within 5,000 flight hours after the effective date of this
AD: Apply sealant between the bus bar assemblies and the backplate
assembly by incorporating Bombardier DHC-8-400 Modification Summary
4-163047, Revision B, dated August 22, 2008, in accordance with the
Accomplishment Instructions of Bombardier Service Bulletin 84-61-03,
Revision `A,' dated September 18, 2008.
(3) Incorporating Bombardier DHC-8-400 Modification Summary
Package 4-163047 before the effective date of this AD in accordance
with Bombardier Service Bulletin 84-61-03, dated April 27, 2007, is
considered acceptable for compliance with the requirements of
paragraph (f)(2) of this AD.
FAA AD Differences
Note 1: This AD differs from the MCAI and/or service
information as follows: No differences.
Other FAA AD Provisions
(g) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, New
York Aircraft Certification Office (ACO), FAA, has the authority to
approve AMOCs for this AD, if requested using the procedures found
in 14 CFR 39.19. Send information to ATTN: Wing Chan, Aerospace
Engineer, Systems and Flight Test Branch, ANE-172, FAA, New York
ACO, 1600 Stewart Avenue, Suite 410, Westbury, New York 11590;
telephone (516) 228-7311; fax (516) 794-5531. Before using any
approved AMOC on any airplane to which the AMOC applies, notify your
principal maintenance inspector (PMI) or principal avionics
inspector (PAI), as appropriate, or lacking a principal inspector,
your local Flight Standards District Office.
(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.
(3) Reporting Requirements: For any reporting requirement in
this AD, under the provisions of the Paperwork Reduction Act, the
Office of Management and Budget (OMB) has approved the information
collection requirements and has assigned OMB Control Number 2120-
0056.
[[Page 46319]]
Related Information
(h) Refer to MCAI Canadian Airworthiness Directive CF-2009-01,
dated January 19, 2009; Bombardier Dash 8 Q400 TA 14, Issue 1, dated
May 10, 2006; and Bombardier Service Bulletin 84-61-03, Revision
`A,' dated September 18, 2008; for related information.
Material Incorporated by Reference
(i) You must use Bombardier Dash 8 Q400 Temporary Amendment 14,
Issue 1, dated May 10, 2006; and Bombardier Service Bulletin 84-61-
03, Revision `A,' dated September 18, 2008; as applicable; to do the
actions required by this AD, unless the AD specifies otherwise.
(1) The Director of the Federal Register approved the
incorporation by reference of this service information under 5
U.S.C. 552(a) and 1 CFR part 51.
(2) For service information identified in this AD, contact
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval,
Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-
7401; e-mail 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 or 425-227-1152.
(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 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 August 18, 2009.
Stephen P. Boyd,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E9-20836 Filed 9-8-09; 8:45 am]
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