[Federal Register Volume 75, Number 216 (Tuesday, November 9, 2010)]
[Rules and Regulations]
[Pages 68682-68684]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2010-28089]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2010-0700; Directorate Identifier 2010-NM-123-AD;
Amendment 39-16500; AD 2010-23-11]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc. Model CL-600-2C10
(Regional Jet Series 700, 701, & 702), CL-600-2D15 (Regional Jet Series
705), and CL-600-2D24 (Regional Jet Series 900) Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
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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:
The manufacturer has informed Transport Canada that a certain
number of the resolver stators, which were installed in the angle of
attack (AOA) transducers, were not cleaned correctly. This condition
can degrade the AOA transducer performance at low temperatures
resulting in freezing of the AOA transducer resolver, which may
provide inaccurate AOA data to the Stall Protection System (SPS). If
not corrected, this condition can result in early or late activation
of the stick shaker and/or stick pusher.
These conditions could result in reduced ability of the flight crew to
maintain a safe flight and landing of the airplane. We are issuing this
AD to require actions to correct the unsafe condition on these
products.
DATES: This AD becomes effective December 14, 2010.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of December 14,
2010.
ADDRESSES: You may examine the AD docket on the Internet at http://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: Joseph Licata, Aerospace Engineer,
Avionics and Flight Test Branch, ANE-172, FAA, New York Aircraft
Certification Office (ACO), 1600 Stewart Avenue, Suite 410, Westbury,
New York 11590; telephone (516) 228-7361; 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 July 27, 2010 (75 FR
43882). That NPRM proposed to correct an unsafe condition for the
specified products. The MCAI states:
The manufacturer has informed Transport Canada that a certain
number of the resolver stators, which were installed in the angle of
attack (AOA) transducers, were not cleaned correctly. This condition
can degrade the AOA transducer performance at low temperatures
resulting in freezing of the AOA transducer resolver, which may
provide inaccurate AOA data to the Stall Protection System (SPS). If
not corrected, this condition
[[Page 68683]]
can result in early or late activation of the stick shaker and/or
stick pusher.
These conditions could result in reduced ability of the flight crew to
maintain a safe flight and landing of the airplane. The required
actions include an inspection to determine if certain AOA transducers
are installed and replacement of affected transducers. 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 considered the comment received. Air Line Pilots
Association, International (ALPA), supports the NPRM.
Conclusion
We reviewed the available data, including the comment received, 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 380 products of U.S. registry.
We also estimate that it will take about 1 work-hour per product to
comply with the basic requirements of this AD. The average labor rate
is $85 per work-hour. Based on these figures, we estimate the cost of
this AD to the U.S. operators to be $32,300, or $85 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 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 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]
0
2. The FAA amends Sec. 39.13 by adding the following new AD:
2010-23-11 Bombardier, Inc.: Amendment 39-16500. Docket No. FAA-
2010-0700; Directorate Identifier 2010-NM-123-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective December
14, 2010.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier, Inc. Model CL-600-2C10
(Regional Jet Series 700, 701, & 702), CL-600-2D15 (Regional Jet
Series 705), and CL-600-2D24 (Regional Jet Series 900) airplanes,
certificated in any category, equipped with Thales angle of attack
transducers having part number (P/N) C16258AA.
Subject
(d) Air Transport Association (ATA) of America Code 27: Flight
Controls.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
The manufacturer has informed Transport Canada that a certain
number of the resolver stators, which were installed in the angle of
attack (AOA) transducers, were not cleaned correctly. This condition
can degrade the AOA transducer performance at low temperatures
resulting in freezing of the AOA transducer resolver, which may
provide inaccurate AOA data to the Stall Protection System (SPS). If
not corrected, this condition can result in early or late activation
of the stick shaker and/or stick pusher.
These conditions could result in reduced ability of the flight
crew to maintain a safe flight and landing of the airplane.
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.
Inspection
(g) Within 750 flight hours after the effective date of this AD,
inspect the serial number of each AOA transducer having P/N C16258AA
to determine if the serial number is identified in paragraph 1.A. of
Bombardier Alert Service Bulletin A670BA-27-054, Revision A, dated
January 18, 2010, in accordance with the Accomplishment Instructions
of Bombardier Alert Service Bulletin A670BA-27-054, Revision A,
dated January 18, 2010. A review of airplane maintenance records is
acceptable in lieu of this inspection if the serial number of the
AOA transducer can be conclusively determined from that review.
(1) If the serial number is not listed in paragraph 1.A. of
Bombardier Alert Service Bulletin A670BA-27-054, Revision A, dated
January 18, 2010, no further action is
[[Page 68684]]
required by this AD other than compliance with paragraph (h) of this
AD.
(2) If the serial number is listed in paragraph 1.A. of
Bombardier Alert Service Bulletin A670BA-27-054, Revision A, dated
January 18, 2010, and has the suffix ``C'', no further action is
required by this AD other than compliance with paragraph (h) of this
AD.
(3) If the serial number is listed paragraph 1.A. of Bombardier
Alert Service Bulletin A670BA-27-054, Revision A, dated January 18,
2010, and does not have the suffix ``C'', before further flight,
replace the AOA transducer with a new or serviceable transducer, in
accordance with Part C of the Accomplishment Instructions of
Bombardier Alert Service Bulletin A670BA-27-054, Revision A, dated
January 18, 2010.
Note 1: To replace any AOA transducer, the replacement AOA
transducer must either be outside of the affected serial numbers as
identified in paragraph 1.A. of Bombardier Alert Service Bulletin
A670BA-27-054, Revision A, dated January 18, 2010, or have the
suffix ``C''.
(h) As of the effective date of this AD, no AOA transducer
having both a serial number and P/N C16258AA as identified in
paragraph 1.A. of Bombardier Alert Service Bulletin A670BA-27-054,
Revision A, dated January 18, 2010, may be installed on any airplane
unless the AOA transducer has been inspected by the manufacturer and
identified with the suffix ``C''.
FAA AD Differences
Note 2: 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. Send information 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 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. 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: For any reporting requirement in
this AD, under the provisions of the Paperwork Reduction Act (44
U.S.C. 3501 et seq.), the Office of Management and Budget (OMB) has
approved the information collection requirements and has assigned
OMB Control Number 2120-0056.
Related Information
(j) Refer to MCAI Canadian Airworthiness Directive CF-2010-13,
dated May 6, 2010; and Bombardier Alert Service Bulletin A670BA-27-
054, Revision A, dated January 18, 2010; for related information.
Material Incorporated by Reference
(k) You must use Bombardier Alert Service Bulletin A670BA-27-
054,
Revision A, dated January 18, 2010, 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 [email protected]; Internet http://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 NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
Issued in Renton, Washington, on October 21, 2010.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2010-28089 Filed 11-8-10; 8:45 am]
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