[Federal Register Volume 76, Number 165 (Thursday, August 25, 2011)]
[Rules and Regulations]
[Pages 53046-53048]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2011-21619]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2011-0907; Directorate Identifier 2011-NM-146-AD;
Amendment 39-16790; AD 2011-18-08]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc. 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.
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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:
There has been one reported case of an aft equipment bay fire
occurring due to arcing of chafed integrated drive generator (IDG)
power cables. Additionally, the hydraulic line support brackets
located at the fuselage station (FS) 672 have been found broken in
service on several aeroplanes. A broken hydraulic line support
bracket at FS 672 could result in inadequate clearance between the
IDG power cables and hydraulic lines, potentially resulting in
chafing of the IDG power cables. Chafed IDG power cables can
generate high energy arcing, which can result in an uncontrolled
fire in the aft equipment bay.
* * * * *
This AD requires actions that are intended to address the unsafe
condition described in the MCAI.
DATES: This AD becomes effective September 9, 2011.
We must receive comments on this AD by October 11, 2011.
ADDRESSES: You may send comments by any of the following methods:
Federal eRulemaking Portal: Go to http://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.
Hand Delivery: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-40, 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 http://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-
2011-18, dated July 7, 2011 (referred to after this as ``the MCAI''),
to correct an unsafe condition for the specified products. The MCAI
states:
There has been one reported case of an aft equipment bay fire
occurring due to arcing of chafed integrated drive generator (IDG)
power cables. Additionally, the hydraulic line support brackets
located at the fuselage station (FS) 672 have been found broken in
service on several aeroplanes. A broken hydraulic line support
bracket at FS 672 could result in inadequate clearance between the
IDG power cables and hydraulic lines, potentially resulting in
chafing of the IDG power cables. Chafed IDG power cables can
generate high energy arcing, which can result in an uncontrolled
fire in the aft equipment bay.
This [TCCA] directive mandates the detailed visual inspection
[for chafing and damage] and, if required, rectification of the IDG
power cables and hydraulic line support bracket.
You may obtain further information by examining the MCAI in the AD
docket.
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
[[Page 53047]]
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.
Differences Between the 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 FAA policies. Any such differences are
highlighted in a NOTE within the AD.
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
chafed IDG power cables can generate high energy arcing, which can
result in an uncontrolled fire in the aft equipment bay. 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-2011-0907; Directorate
Identifier 2011-NM-146-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 http://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 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.
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:
2011-18-08 Bombardier, Inc.: Amendment 39-16790. Docket No. FAA-
2011-0907; Directorate Identifier 2011-NM-146-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective
September 9, 2011.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier, Inc. Model CL-600-2B19
(Regional Jet Series 100 & 440) airplanes, certificated in any
category, serial numbers 7003 and subsequent.
Subject
(d) Air Transport Association (ATA) of America Code 24:
Electrical power.
Reason
(e) The mandatory continued airworthiness information (MCAI)
states:
There has been one reported case of an aft equipment bay fire
occurring due to arcing of chafed integrated drive generator (IDG)
power cables. Additionally, the hydraulic line support brackets
located at the fuselage station (FS) 672 have been found broken in
service on several aeroplanes. A broken hydraulic line support
bracket at FS 672 could result in inadequate clearance between the
IDG power cables and hydraulic lines, potentially resulting in
chafing of the IDG power cables. Chafed IDG power cables can
generate high energy arcing, which can result in an uncontrolled
fire in the aft equipment bay.
* * * * *
Compliance
(f) You are responsible for having the actions required by this
AD performed within the compliance times specified, unless the
actions have already been done.
Actions
(g) Within 45 days after the effective date of this AD, do a
detailed inspection for chafed or damaged IDG power cables from
fuselage station FS652 to FS672, between stringers 8R and 10R, and
for cracked or broken hydraulic line support brackets at FS672.
(1) If chafing or damage is found on any IDG power cable, before
further flight, replace the IDG power cable using a method approved
by either the Manager, New York Aircraft Certification Office (ACO),
ANE-170, FAA, or Transport Canada Civil Aviation (TCCA) (or its
delegated agent).
(2) If any cracking or breaking is found on any hydraulic line
support bracket at FS672, before further flight, replace the
hydraulic line support bracket using a method approved by either the
Manager, New York ACO, ANE-170, FAA, or TCCA (or its delegated
agent).
Reporting
(h) Submit a report of the findings of the inspection required
by paragraph (g) of this
[[Page 53048]]
AD to Bombardier Regional Aircraft Customer Response Center, 13100
Boulevard Henri-Fabre, Mirabel, Quebec, Canada J7N 3C6; telephone:
1-514-855-8500; fax: 1-514-855-8501; e-mail:
[email protected], at the applicable time specified in
paragraph (h)(1) or (h)(2) of this AD. The report must include any
finding of chafing of the IDG power cable or broken hydraulic line
support bracket, the airplane serial number, and the number of
landings and flight hours on the airplane.
(1) If the inspection was done on or after the effective date of
this AD: Submit the report within 10 days after the inspection.
(2) If the inspection was done before the effective date of this
AD: Submit the report within 10 days after the effective date 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
(i) 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.
(3) Reporting Requirements: A Federal agency may not conduct or
sponsor, and a person is not required to respond to, nor shall a
person be subject to a penalty for failure to comply with a
collection of information subject to the requirements of the
Paperwork Reduction Act unless that collection of information
displays a current valid OMB Control Number. The OMB Control Number
for this information collection is 2120-0056. Public reporting for
this collection of information is estimated to be approximately 5
minutes per response, including the time for reviewing instructions,
completing and reviewing the collection of information. All
responses to this collection of information are mandatory. Comments
concerning the accuracy of this burden and suggestions for reducing
the burden should be directed to the FAA at: 800 Independence Ave.,
SW., Washington, DC 20591, Attn: Information Collection Clearance
Officer, AES-200.
Related Information
(j) Refer to MCAI Canadian Airworthiness Directive CF-2011-18,
dated July 7, 2011, for related information.
Material Incorporated by Reference
(k) None.
Issued in Renton, Washington, on August 12, 2011.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2011-21619 Filed 8-24-11; 8:45 am]
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