[Federal Register: July 12, 2007 (Volume 72, Number 133)]
[Rules and Regulations]
[Page 38004-38006]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr12jy07-8]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2006-26353; Directorate Identifier 2006-NM-189-AD;
Amendment 39-15124; AD 2007-14-02]
RIN 2120-AA64
Airworthiness Directives; Bombardier Model CL-600-1A11 (CL-600),
CL-600-2A12 (CL-601), CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604)
Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain Bombardier Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601),
and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604) airplanes. This AD
requires inspecting to identify the part number and serial number of
the selector valves of the nose landing gear (NLG) and the nose gear
door, and doing related investigative and corrective actions if
necessary. This AD results from reports of uncommanded partial
retractions of the NLG. We are issuing this AD to prevent internal
leakage of the selector valve, which, under certain conditions, could
result in an uncommanded retraction of the NLG with consequent damage
to the airplane and possible serious injury to ground personnel.
DATES: This AD becomes effective August 16, 2007.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in the AD as of August 16,
2007.
ADDRESSES: You may examine the AD docket on the Internet at http://dms.dot.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.
Contact Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 6087,
Station Centre-ville, Montreal, Quebec H3C 3G9, Canada, for service
information identified in this AD.
FOR FURTHER INFORMATION CONTACT: Daniel Parrillo, 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) 228-7305; fax (516) 794-5531.
SUPPLEMENTARY INFORMATION:
Examining the Docket
You may examine the AD docket on the Internet at http://dms.dot.gov
or in person at the Docket Operations office between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays. The Docket Operations
office (telephone (800) 647-5527) is located on the ground floor of the
West Building at the street address stated in the ADDRESSES section.
Discussion
The FAA issued a supplemental notice of proposed rulemaking (NPRM)
to amend 14 CFR part 39 to include an AD that would apply to certain
Bombardier Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), and CL-
600-2B16 (CL-601-3A, CL-601-3R, and CL-604) airplanes. That
supplemental NPRM was published in the Federal Register on April 26,
2007 (72 FR 20777). That supplemental NPRM proposed to require
inspecting to identify the part number and serial number of the
selector valves of the nose landing gear (NLG) and the nose gear door,
and doing related investigative and corrective actions if necessary.
That supplemental NPRM also proposed to add airplanes to the
applicability.
Comments
We provided the public the opportunity to participate in the
development of this AD. No comments have been received on the
supplemental NPRM or on the determination of the cost to the public.
Clarification of Alternative Method of Compliance (AMOC) Paragraph
We have revised this action to clarify the appropriate procedure
for notifying the principal inspector before using any approved AMOC on
any airplane to which the AMOC applies.
Conclusion
We have carefully reviewed the available data and determined that
air safety and the public interest require adopting the AD with the
change described previously. We have determined that this change will
neither increase the economic burden on any
[[Page 38005]]
operator nor increase the scope of the AD.
Costs of Compliance
This AD affects about 502 airplanes of U.S. registry.
The inspection to determine the manufacturer part number and serial
number of the selector valve(s) takes about 1 work hour per airplane,
at an average labor rate of $80 per work hour. Based on these figures,
the estimated cost of the required inspection for U.S. operators is
$40,160, or $80 per airplane.
The general visual inspection of the selector valve(s), if
accomplished, takes about 1 work hour per airplane, at an average labor
rate of $80 per work hour. Based on these figures, the estimated cost
of that inspection for U.S. operators is $80 per airplane.
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, Section 106, describes the
authority of the FAA Administrator. Subtitle VII, Aviation Programs,
describes in more detail the scope of the Agency's authority.
We are issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701, ``General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.
Regulatory Findings
We have determined that this AD will not have federalism
implications under Executive Order 13132. This AD will not have a
substantial direct effect on the States, on the relationship between
the national government and the States, or on the distribution of power
and responsibilities among the various levels of government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866;
(2) Is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979); and
(3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
We prepared a regulatory evaluation of the estimated costs to
comply with this AD and placed it in the AD docket. See the ADDRESSES
section for a location to examine the regulatory evaluation.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
Accordingly, under the authority delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The Federal Aviation Administration (FAA) amends Sec. 39.13 by
adding the following new airworthiness directive (AD):
2007-14-02 Bombardier, Inc. (Formerly Canadair): Amendment 39-15124.
Docket No. FAA-2006-26353; Directorate Identifier 2006-NM-189-AD.
Effective Date
(a) This AD becomes effective August 16, 2007.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier Model CL-600-1A11 (CL-600),
CL-600-2A12 (CL-601), and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-
604) airplanes; certificated in any category; having serial numbers
(S/Ns) as identified in the service bulletins specified in Table 1
of this AD, as applicable.
Table 1.--Bombardier Service Bulletins
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Revision
Service bulletin level Date
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600-0721 (for Model CL-600- 01 February 20, 2006.
1A11 (CL-600) airplanes).
601-0558 (for Model CL-600- 01 February 20, 2006.
2A12 (CL-601), and CL-600-
2B16 (CL-601-3A and CL-601-
3R) airplanes).
604-32-021 (for Model CL-600- 02 February 20, 2007.
2B16 (CL-604) airplanes).
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Unsafe Condition
(d) This AD results from reports of uncommanded partial
retractions of the nose landing gear (NLG). We are issuing this AD
to prevent internal leakage of the selector valve, which, under
certain conditions, could result in an uncommanded retraction of the
NLG with consequent damage to the airplane and possible serious
injury to ground personnel.
Compliance
(e) You are responsible for having the actions required by this
AD performed within the compliance times specified, unless the
actions have already been done.
Inspection and Corrective Actions
(f) Within 500 flight hours or 12 months after the effective
date of this AD, whichever occurs first, inspect to determine the
manufacturer part numbers (P/Ns) and serial numbers of the selector
valves of the NLG and nose gear door. A review of airplane
maintenance records is acceptable in lieu of this inspection if the
serial numbers of the selector valves can be conclusively determined
from that review. For any subject selector valve having Tactair
Fluid Controls P/N 750006000 and a S/N from 0001 through 0767
inclusive, before further flight, do related investigative
(including a general visual inspection for proper installation of
the lock wire of the end cap) and corrective actions; in accordance
with the applicable service bulletin identified in Table 1 of this
AD.
Note 1: Operators should be aware that selector valves having
Bombardier P/N 601R75146-1 may be supplied by different
manufacturers and have different manufacturer part numbers. Only
airplanes having selector valves manufactured by Tactair Fluid
Controls, having P/N 750006000, are subject to the investigative and
corrective actions specified in paragraph (f) of this AD.
Note 2: For the purposes of this AD, a general visual inspection
is: ``A visual examination of an interior or exterior area,
installation, or assembly to detect obvious damage, failure, or
irregularity. This level of inspection is made from within touching
distance unless otherwise specified. A mirror may be necessary to
ensure visual access to all surfaces in the inspection area. This
level of inspection is made under normally available lighting
conditions such as daylight, hangar lighting, flashlight, or
[[Page 38006]]
droplight and may require removal or opening of access panels or
doors. Stands, ladders, or platforms may be required to gain
proximity to the area being checked.''
Note 3: The service bulletins identified in Table 1 of this AD
refer to Tactair Fluid Controls Service Bulletin SB750006000-1,
Revision A, dated September 6, 2005, as an additional source of
service information for doing the related investigative and
corrective actions required by this AD.
Actions Accomplished According to Previous Issue of Service Bulletin
(g) Actions accomplished before the effective date of this AD in
accordance with Bombardier Service Bulletin 604-32-021, Revision 01,
dated February 20, 2006 (for Model CL-600-2B16 (CL-604) airplanes),
are considered acceptable for compliance with the corresponding
actions specified in this AD.
Alternative Methods of Compliance (AMOCs)
(h)(1) The Manager, New York Aircraft Certification Office, FAA,
has the authority to approve AMOCs for this AD, if requested in
accordance with the procedures found in 14 CFR 39.19.
(2) To request a different method of compliance or a different
compliance time for this AD, follow the procedures in 14 CFR 39.19.
Before using any approved AMOC on any airplane to which the AMOC
applies, notify your appropriate principal inspector (PI) in the FAA
Flight Standards District Office (FSDO), or lacking a PI, your local
FSDO.
Related Information
(i) Canadian airworthiness directive CF-2006-16, dated July 6,
2006, also addresses the subject of this AD.
Material Incorporated by Reference
(j) You must use the applicable service bulletins identified in
Table 2 of this AD to perform the actions that are required by this
AD, unless the AD specifies otherwise. The Director of the Federal
Register approved the incorporation by reference of these documents
in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact
Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 6087, Station
Centre-ville, Montreal, Quebec H3C 3G9, Canada, for a copy of this
service information. You may review copies at the FAA, Transport
Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or
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/cfr/ibr-locations.html
.
Table 2.--Material Incorporated by Reference
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Revision
Bombardier Service Bulletin level Date
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600-0721...................... 01 February 20, 2006.
601-0558...................... 01 February 20, 2006.
604-32-021.................... 02 February 20, 2007.
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Issued in Renton, Washington, on June 25, 2007.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E7-13081 Filed 7-11-07; 8:45 am]
BILLING CODE 4910-13-P