[Federal Register: August 22, 2005 (Volume 70, Number 161)]
[Rules and Regulations]
[Page 48852-48854]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr22au05-8]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2005-20353; Directorate Identifier 2004-NM-255-AD;
Amendment 39-14224; AD 2005-17-03]
RIN 2120-AA64
Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional
Jet Series 100 & 440) 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-600-2B19 (Regional Jet Series 100 & 440)
airplanes. This AD requires installing additional shielding of the
hydraulic lines in the wing box area. This AD results from the
determination that the additional hydraulic line shields will protect
the lines from possible impact by tire debris if the tire tread fails.
We are issuing this AD to prevent damage to the hydraulic lines and
subsequent leakage from the two hydraulic systems, which could result
in loss of braking capability on the affected side of the airplane,
asymmetrical braking, and reduced directional control--particularly
during a rejected takeoff.
DATES: Effective September 26, 2005.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in the AD as of September 26,
2005.
ADDRESSES: You may examine the AD docket on the Internet at http://dms.dot.gov
or in person at the Docket Management Facility, U.S.
Department of Transportation, 400 Seventh Street, SW., Nassif Building,
Room PL-401, Washington, DC.
For the service information identified in this AD, contact
Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 6087, Station
Centre-ville, Montreal, Quebec H3C 3G9, Canada.
FOR FURTHER INFORMATION CONTACT: Daniel Parillo, Aerospace Engineer,
Systems and Flight Test Branch, ANE-172, FAA, New York Aircraft
[[Page 48853]]
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 Management Facility office between 9 a.m.
and 5 p.m., Monday through Friday, except Federal holidays. The Docket
Management Facility office (telephone (800) 647-5227) is located on the
plaza level of the Nassif Building at the street address stated in the
ADDRESSES section.
Discussion
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to include an AD that would apply to certain Bombardier
Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. That NPRM
was published in the Federal Register on February 15, 2005 (70 FR
7674). That NPRM proposed to require installing additional shielding of
the hydraulic lines in the wing box area.
Comments
We provided the public the opportunity to participate in the
development of this AD. We received no comments on the NPRM or on the
determination of the cost to the public.
Change to the NPRM
Since the NPRM was issued, Bombardier has revised Service Bulletin
601R-57-021. Revision `D,' dated July 11, 2005, adds a procedure to cut
the shield, changes the illustration, and incorporates minor editorial
changes. The technical content remains otherwise unchanged from that in
Revision `C.' We have revised paragraphs (f) and (g) in this final rule
to indicate that accomplishment of the actions specified in revision
`B,' `C,' or `D' of the service bulletin is acceptable for compliance
with the requirements of this AD.
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 operator nor increase the
scope of the AD.
Costs of Compliance
The following table provides the estimated costs for U.S. operators
to comply with this AD.
Estimated Costs
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Average Number of
Work labor Cost per U.S.- Fleet
Action hours rate per Parts airplane registered cost
hour airplanes
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Shield installation................. 16 $65 $0 $1,040 91 $94,640
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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
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):
2005-17-03 Bombardier, Inc. (Formerly Canadair): Amendment 39-14224.
Docket No. FAA-2005-20353; Directorate Identifier 2004-NM-255-AD.
Effective Date
(a) This AD becomes effective September 26, 2005.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier Model CL-600-2B19 (Regional
Jet series 100 & 440) airplanes, certificated in any category,
serial numbers 7003 through 7067 inclusive, 7069 through 7165
inclusive, 7167 through 7169 inclusive, and 7171 through 7188
inclusive.
Unsafe Condition
(d) This AD was prompted by the determination that additional
shielding of the hydraulic lines in the wing box area will protect
the lines from possible impact by tire debris if the tire tread
fails. We are issuing this AD to prevent damage to the hydraulic
lines and subsequent leakage from the two hydraulic systems, which
could result in loss of braking capability on the affected side of
the airplane, asymmetrical braking, and
[[Page 48854]]
reduced directional control--particularly during a rejected takeoff.
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.
Installation of Hydraulic Line Shields
(f) Within 24 months after the effective date of this AD,
install additional shielding of the hydraulic lines in the wing box
area, by doing all the actions specified in the Accomplishment
Instructions of Bombardier Service Bulletin 601R-57-021, Revision D,
dated July 11, 2005.
(g) Installations accomplished before the effective date of this
AD according to Bombardier Service Bulletin 601R-57-021, Revision
``B,'' dated July 18, 2001; or Revision ``C,'' dated February 23,
2004; are considered acceptable for compliance with the
corresponding action specified in this AD.
Alternative Methods of Compliance (AMOCs)
(h) 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.
Related Information
(i) Canadian airworthiness directive CF-2004-20, dated October
5, 2004, also addresses the subject of this AD.
Material Incorporated by Reference
(j) You must use Bombardier Service Bulletin 601R-57-021,
Revision D, dated July 11, 2005, 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
this document 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 Centreville, Montreal, Quebec H3C 3G9, Canada, for a copy of
this service information. You may review copies at the Docket
Management Facility, U.S. Department of Transportation, 400 Seventh
Street SW., Room PL-401, Nassif Building, Washington, DC; on the
internet at http://dms.dot.gov; or at the National Archives and
Records Administration (NARA). For information on the availability
of this material at the 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 August 10, 2005.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-16264 Filed 8-19-05; 8:45 am]
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