[Federal Register Volume 63, Number 20 (Friday, January 30, 1998)]
[Rules and Regulations]
[Pages 4564-4565]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 98-1973]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 97-NM-256-AD; Amendment 39-10294; AD 98-03-02]
RIN 2120-AA64
Airworthiness Directives; Bombardier Model CL-600-1A11 and CL-
600-2A12 Series Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule.
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SUMMARY: This amendment adopts a new airworthiness directive (AD),
applicable to certain Bombardier Model CL-600-1A11 and CL-600-2A12
series airplanes, that requires replacement of the anti-noise filter on
the standby and auxiliary power unit (APU) fuel pump assemblies with a
new filter. This amendment is prompted by issuance of mandatory
continuing airworthiness information by a foreign civil airworthiness
authority. The actions specified by this AD are intended to prevent
electrical arcing between the internal wiring and casing of the anti-
noise filter on the standby and APU fuel pump assemblies, and
consequent increased risk of fuel tank explosion or fire.
DATES: Effective March 6, 1998.
The incorporation by reference of certain publications listed in
the regulations is approved by the Director of the Federal Register as
of March 6, 1998.
ADDRESSES: The service information referenced in this AD may be
obtained from Bombardier, Inc., Canadair, Aerospace Group, P.O. Box
6087, Station A, Montreal, Quebec H3C 3G9, Canada. This information may
be examined at the Federal Aviation Administration (FAA), Transport
Airplane Directorate, Rules Docket, 1601 Lind Avenue, SW., Renton,
Washington; or at the FAA, Engine and Propeller Directorate, New York
Aircraft Certification Office, 10 Fifth Street, Third Floor, Valley
Stream, New York; or at the Office of the Federal Register, 800 North
Capitol Street, NW., suite 700, Washington, DC.
FOR FURTHER INFORMATION CONTACT: Wing Chan, Aerospace Engineer, Systems
and Equipment Branch, ANE-172, FAA, Engine and Propeller Directorate,
New York Aircraft Certification Office, 10 Fifth Street, Third Floor,
Valley Stream, New York 11581; telephone (516) 256-7511; fax (516) 568-
2716.
SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal
Aviation Regulations (14 CFR part 39) to include an airworthiness
directive (AD) that is applicable to certain Bombardier Model CL-600-
1A11 and CL-600-2A12 series airplanes was published in the Federal
Register on November 19, 1997 (62 FR 61706). That action proposed to
require replacement of the anti-noise filter on the standby and
auxiliary power unit (APU) fuel pump assemblies with a new filter.
Comments
Interested persons have been afforded an opportunity to participate
in the making of this amendment. Due consideration has been given to
the single comment received.
The commenter supports the proposed rule.
Conclusion
After careful review of the available data, including the comment
noted above, the FAA has determined that air safety and the public
interest require the adoption of the rule as proposed.
Cost Impact
The FAA estimates that 84 Model CL-600-1A11 and CL-600-2A12 series
airplanes of U.S. registry will be affected by this AD, that it will
take approximately 20 work hours per airplane to accomplish the
required actions, and that the average labor rate is $60 per work hour.
Required parts will cost approximately $5,689 per airplane. Based on
these figures, the cost impact of the AD on U.S. operators is estimated
to be $578,676, or $6,889 per airplane.
The cost impact figure discussed above is based on assumptions that
no operator has yet accomplished any of the requirements of this AD
action, and that no operator would accomplish those actions in the
future if this AD were not adopted.
Regulatory Impact
The regulations adopted herein will not have substantial direct
effects 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. Therefore, in
accordance with Executive Order 12612, it is determined that this final
rule does not have sufficient federalism implications to warrant the
preparation of a Federalism Assessment.
For the reasons discussed above, I certify that this action (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. A final evaluation has been prepared for this action
and it is contained in the Rules Docket. A copy of it may be obtained
from the Rules Docket at the location provided under the caption
ADDRESSES.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
Accordingly, pursuant to the authority delegated to me by the
Administrator, the Federal Aviation Administration amends part 39 of
the Federal Aviation Regulations (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]
2. Section 39.13 is amended by adding the following new
airworthiness directive:
98-03-02 Bombardier, Inc. (Formerly Canadair): Amendment 39-10294.
Docket 97-NM-256-AD.
Applicability: Model CL-600-1A11 series airplanes, as listed in
Bombardier Canadair Challenger Alert Service Bulletin A600-0644,
[[Page 4565]]
Revision 01, dated March 31, 1995; and Model CL-600-2A12 series
airplanes, as listed in Bombardier Canadair Challenger Alert Service
Bulletin A601-0441, Revision 01, dated March 31, 1995; certificated
in any category.
Note 1: This AD applies to each airplane identified in the
preceding applicability provision, regardless of whether it has been
modified, altered, or repaired in the area subject to the
requirements of this AD. For airplanes that have been modified,
altered, or repaired so that the performance of the requirements of
this AD is affected, the owner/operator must request approval for an
alternative method of compliance in accordance with paragraph (c) of
this AD. The request should include an assessment of the effect of
the modification, alteration, or repair on the unsafe condition
addressed by this AD; and, if the unsafe condition has not been
eliminated, the request should include specific proposed actions to
address it.
Compliance: Required as indicated, unless accomplished
previously.
To prevent electrical arcing between the internal wiring and
casing of the anti-noise filter on the standby and auxiliary power
unit (APU) fuel pump assemblies, and consequent increased risk of
fuel tank explosion or fire, accomplish the following:
(a) Within 100 flight hours after the effective date of this AD,
replace the anti-noise filter on the standby and auxiliary power
unit (APU) fuel pump assemblies with a new filter, in accordance
with Part B of Bombardier Canadair Challenger Alert Service Bulletin
A600-0644, Revision 01, dated March 31, 1995 (for Model CL-600-1A11
series airplanes), or Bombardier Canadair Challenger Alert Service
Bulletin A601-0441, Revision 01, dated March 31, 1995 (for Model CL-
600-2A12 series airplanes); as applicable.
(b) As of the effective date of this AD, no person shall install
on any airplane a fuel pump having part number (P/N) 600-62966-25 or
600-62966-27 with an anti-noise filter having P/N 160-151501 (prior
to revision H stamped on the part) installed.
(c) An alternative method of compliance or adjustment of the
compliance time that provides an acceptable level of safety may be
used if approved by the Manager, New York Aircraft Certification
Office (ACO), FAA, Engine and Propeller Directorate. Operators shall
submit their requests through an appropriate FAA Principal
Maintenance Inspector, who may add comments and then send it to the
Manager, New York ACO.
Note 2: Information concerning the existence of approved
alternative methods of compliance with this AD, if any, may be
obtained from the New York ACO.
(d) Special flight permits may be issued in accordance with
sections 21.197 and 21.199 of the Federal Aviation Regulations (14
CFR 21.197 and 21.199) to operate the airplane to a location where
the requirements of this AD can be accomplished.
(e) The replacement shall be done in accordance with Bombardier
Canadair Challenger Alert Service Bulletin A600-0644, Revision 01,
dated March 31, 1995; Bombardier Canadair Challenger Alert Service
Bulletin A601-0441, Revision 01, dated March 31, 1995; as
applicable. This incorporation by reference was approved by the
Director of the Federal Register in accordance with 5 U.S.C. 552(a)
and 1 CFR part 51. Copies may be obtained from Bombardier, Inc.,
Canadair, Aerospace Group, P.O. Box 6087, Station A, Montreal,
Quebec H3C 3G9, Canada. Copies may be inspected at the FAA,
Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton,
Washington; or at the FAA Engine and Propeller Directorate, New York
Aircraft Certification Office, 10 Fifth Street, Third Floor, Valley
Stream, New York; or at the Office of the Federal Register, 800
North Capitol Street, NW., suite 700, Washington, DC.
Note 3: The subject of this AD is addressed in Canadian
airworthiness directive CF-97-02, dated February 25, 1997.
(f) This amendment becomes effective on March 6, 1998.
Issued in Renton, Washington, on January 21, 1998.
Darrell M. Pederson,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 98-1973 Filed 1-29-98; 8:45 am]
BILLING CODE 4910-13-U
