[Federal Register: March 17, 2005 (Volume 70, Number 51)]
[Rules and Regulations]
[Page 12963-12966]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr17mr05-1]
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Rules and Regulations
Federal Register
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[[Page 12963]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2005-20631; Directorate Identifier 2005-NM-025-AD;
Amendment 39-14012; AD 2005-06-04]
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; request for comments.
-----------------------------------------------------------------------
SUMMARY: The FAA is superseding an existing airworthiness directive
(AD) that applies to certain Bombardier Model CL-600-2B19 (Regional Jet
Series 100 & 440) airplanes. The existing AD currently requires
repetitive inspections of the left and right engine throttle control
gearboxes for wear, and corrective action if necessary. The existing AD
was prompted by numerous failures of the engine throttle control
gearbox, some of which resulted in an in-flight engine shutdown. This
AD adds airplanes to the applicability of the existing AD. We are
issuing this AD to prevent excessive wear of the gearboxes and
subsequent movement or jamming of the engine throttle; movement of the
throttle towards the idle position brings it close to the fuel shut-off
position, which could result in an in-flight engine shutdown.
DATES: Effective April 1, 2005.
On July 9, 2004 (69 FR 35239, June 24, 2004), the Director of the
Federal Register approved the incorporation by reference of Bombardier
Service Bulletin 601R-76-019, Revision `A,' dated February 19, 2004.
On March 25, 2004 (69 FR 11293, March 10, 2004), the Director of
the Federal Register approved the incorporation by reference of
Bombardier Service Bulletin 601R-76-019, dated August 21, 2003.
We must receive any comments on this AD by May 16, 2005.
ADDRESSES: Use one of the following addresses to submit comments on
this AD.
DOT Docket Web site: Go to http://dms.dot.gov and follow
the instructions for sending your comments electronically.
Government-wide rulemaking Web site: Go to http://www.regulations.gov
and follow the instructions for sending your
comments electronically.
Mail: Docket Management Facility, U.S. Department of
Transportation, 400 Seventh Street SW., Nassif Building, room PL-401,
Washington, DC 20590.
Fax: (202) 493-2251.
Hand Delivery: Room PL-401 on the plaza level of the
Nassif Building, 400 Seventh Street SW., Washington, DC, between 9 a.m.
and 5 p.m., Monday through Friday, except Federal holidays.
For service information identified in this AD, contact Bombardier,
Inc., Canadair, Aerospace Group, P.O. Box 6087, Station Centre-ville,
Montreal, Quebec H3C 3G9, Canada.
You can examine the contents of this 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., room PL-401,
on the plaza level of the Nassif Building, Washington, DC. This docket
number is FAA-2005-20631; the directorate identifier for this docket is
2005-NM-025-AD.
Examining the Docket
You can 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 DOT
street address stated in the ADDRESSES section. Comments will be
available in the AD docket shortly after the DMS receives them.
FOR FURTHER INFORMATION CONTACT: Richard Beckwith, Aerospace Engineer,
Airframe and Propulsion Branch, ANE-171, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Westbury, New York 11581;
telephone (516) 228-7302; fax (516) 794-5531.
SUPPLEMENTARY INFORMATION: On June 10, 2004, the FAA issued AD 2004-05-
12 R1, amendment 39-13683 (69 FR 35239, June 24, 2004), for certain
Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes.
That AD requires repetitive inspections of the left and right engine
throttle control gearboxes for wear, and corrective action if
necessary. That AD was prompted by numerous failures of the engine
throttle control gearbox, some of which resulted in an in-flight engine
shutdown. We issued that AD to prevent excessive wear of the gearboxes
and subsequent movement or jamming of the engine throttle; movement of
the throttle towards the idle position brings it close to the fuel
shut-off position, which could result in an in-flight engine shutdown.
Actions Since AD Was Issued
AD 2004-05-12 R1 was originally issued with a limited applicability
because Transport Canada Civil Aviation (TCCA), which is Canada's
aviation authority, did not expect that Bombardier would produce any
airplanes beyond serial number 7999. Recently, Bombardier has produced
airplanes with serial numbers 8000 and subsequent.
Relevant Service Information
Bombardier has issued Service Bulletin 601R-76-019, dated August
21, 2003; and Revision `A', dated February 19, 2004; which provide
instructions for detailed inspection for wear of the left and right
engine throttle control gearboxes, and corrective actions if necessary.
The corrective actions include replacing the gearbox with a new or
serviceable gearbox. We have determined that accomplishment of the
actions specified in the service information will adequately address
the unsafe condition.
TCCA mandated the service information and issued Canadian
airworthiness directive CF-2004-01, dated January 21, 2004, to ensure
the continued airworthiness of these airplanes in Canada.
FAA's Determination and Requirements of This AD
These airplane models are manufactured in Canada and are type
[[Page 12964]]
certificated for operation in the United States under the provisions of
Sec. 21.29 of the Federal Aviation Regulations (14 CFR 21.29) and the
applicable bilateral airworthiness agreement. Pursuant to this
bilateral airworthiness agreement, TCCA has kept us informed of the
situation described above. We have examined TCCA's findings, evaluated
all pertinent information, and determined that AD action is necessary
for products of this type design that are certificated for operation in
the United States.
Therefore, we are issuing this AD to supersede AD 2004-05-12 R1.
This new AD continues to require repetitive inspections of the left and
right engine throttle control gearboxes for wear, and corrective action
if necessary. This AD also applies to additional serial numbered
airplanes beyond the last serial number listed in the applicability of
the existing AD. This AD requires you to use the Bombardier service
information described previously to perform these actions, except as
discussed under ``Difference Between the AD and Service Information.''
This action also requires that operators report the inspection results
to Bombardier.
Differences Between the AD and Service Information
Although the Bombardier service information recommends returning
discrepant gearboxes to the parts manufacturer, this AD does not
contain that requirement.
The service information also does not define the type of inspection
for wear of the engine throttle control gearboxes. We have clarified
the inspection requirement contained in the AD as a detailed
inspection. A note has been added to the AD to define that inspection.
Differences Between the AD and Canadian Airworthiness Directive CF-
2004-01
TCCA did not anticipate that Bombardier would produce additional
Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes beyond
serial numbers 7003 through 7067 inclusive, and 7069 through 7999
inclusive. Therefore, Canadian airworthiness directive CF-2004-01,
dated January 21, 2004, limits the applicability to those serial
numbers. Because Bombardier has recently produced airplanes with serial
numbers 8000 and subsequent, this AD applies to Model CL-600-2B19
(Regional Jet Series 100 & 440) airplanes, serial numbers 7003 through
7067 inclusive, and 7069 and subsequent. We have coordinated with TCCA
that we are superseding AD 2004-05-12 R1 to include airplanes having
serial numbers 8000 and subsequent.
Change to Existing AD
This AD retains all requirements of AD 2004-05-12 R1. Since AD
2004-05-12 R1 was issued, the AD format has been revised, and certain
paragraphs have been rearranged. As a result, the corresponding
paragraph identifiers have changed in this AD, as listed in the
following table:
Revised Paragraph Identifiers
------------------------------------------------------------------------
Corresponding requirement in
Requirement in AD 2004-05-12 R1 this AD
------------------------------------------------------------------------
Paragraph (a).......................... Paragraph (f).
Paragraph (b).......................... Paragraph (g).
Paragraph (c).......................... Paragraph (h).
------------------------------------------------------------------------
Interim Action
We consider this AD to be interim action. The reports that you are
required to submit will enable the manufacturer to obtain better
insight into the nature, cause, and extent of the wear of the engine
throttle control gearbox, and eventually to develop final action to
address the unsafe condition. Once final action has been identified, we
may consider further rulemaking.
FAA's Determination of the Effective Date
An unsafe condition exists that requires the immediate adoption of
this AD; therefore, providing notice and opportunity for public comment
before the AD is issued is impracticable, and good cause exists to make
this AD effective in less than 30 days.
Comments Invited
This AD is a final rule that involves requirements that affect
flight safety and was not preceded by notice and an opportunity for
public comment; however, we invite you to submit any relevant written
data, views, or arguments regarding this AD. Send your comments to an
address listed under ADDRESSES. Include ``Docket No. FAA-2005-20631;
Directorate Identifier 2005-NM-025-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of the AD. We will consider
all comments received by the closing date and may amend the AD in light
of those comments.
We will post all comments we receive, without change, to http://dms.dot.gov
, including any personal information you provide. We will
also post a report summarizing each substantive verbal contact with FAA
personnel concerning this AD. Using the search function of our docket
Web site, anyone can find and read the comments in any of our dockets,
including the name of the individual who sent the comment (or signed
the comment on behalf of an association, business, labor union, etc.).
You can review the DOT's complete Privacy Act Statement in the Federal
Register published on April 11, 2000 (65 FR 19477-78), or you can visit
http://dms.dot.gov.
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 the regulation:
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. See the ADDRESSES section for a location to
examine the regulatory evaluation.
[[Page 12965]]
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 part 39 of the Federal Aviation Regulations (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 removing amendment 39-13683 (69 FR
35239, June 24, 2004), and adding the following new airworthiness
directive (AD):
2005-06-04 Bombardier, Inc (Formerly Canadair): Amendment 39-14012.
Docket No. FAA-2005-20631; Directorate Identifier 2005-NM-025-AD.
Effective Date
(a) This AD becomes effective April 1, 2005.
Affected ADs
(b) This AD supersedes AD 2004-05-12 R1, amendment 39-13683 (69
FR 35239, June 24, 2004).
Applicability
(c) This AD applies to Bombardier Model CL-600-2B19 (Regional
Jet Series 100 & 440) airplanes, serial numbers (S/Ns) 7003 through
7067 inclusive, and 7069 and subsequent, certificated in any
category.
Unsafe Condition
(d) This AD was prompted by numerous failures of the engine
throttle control gearbox, some of which resulted in an in-flight
engine shutdown. We are issuing this AD to prevent excessive wear of
the gearboxes and subsequent movement or jamming of the engine
throttle; movement of the throttle towards the idle position brings
it close to the fuel shut-off position, which could result in an in-
flight engine shutdown.
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.
Repetitive Inspections
(f) At the applicable time specified in paragraph (f)(1) or
(f)(2) of this AD, do a detailed inspection for wear of the left and
right engine throttle control gearboxes having part number (P/N)
2100140-005 or 2100140-007 by doing all the actions per part A,
paragraphs A., B., and C.(1) through C.(4), of the Accomplishment
Instructions of Bombardier Service Bulletin 601R-76-019, dated
August 21, 2003; or Revision ``A,'' dated February 19, 2004. If the
wear value is the same as that specified in part A, paragraph B.(8),
of the Accomplishment Instructions of the service bulletin, repeat
the inspection thereafter at intervals not to exceed 1,000 flight
hours.
(1) For airplanes having SNs 7003 through 7067 inclusive and
7069 through 7999 inclusive: Within 1,000 flight hours or 90 days
after March 25, 2004 (the effective date of AD 2004-05-12),
whichever is later.
(2) For airplanes having S/Ns 8000 and subsequent: Within 1,000
flight hours or 90 days after the effective date of this AD,
whichever is later.
Note 1: For the purposes of this AD, a detailed inspection is:
``An intensive visual examination of a specific structural area,
system, installation, or assembly to detect damage, failure, or
irregularity. Available lighting is normally supplemented with a
direct source of good lighting at an intensity deemed appropriate by
the inspector. Inspection aids such as mirror, magnifying lenses,
etc., may be used. Surface cleaning and elaborate access procedures
may be required.''
Corrective Action
(g) If the wear value found during any inspection required by
paragraph (f) of this AD is not the same as that specified in part
A, paragraph B.(8), of the Accomplishment Instructions of Bombardier
Service Bulletin 601R-76-019, dated August 21, 2003; or Revision
``A,'' dated February 19, 2004: Do the applicable actions required
by paragraph (g)(1), (g)(2), or (g)(3) of this AD, at the time
specified, per the Accomplishment Instructions of the service
bulletin. Repeat the inspection required by paragraph (f) of this AD
thereafter at intervals not to exceed 1,000 flight hours.
(1) If the wear value on one or both of the gearboxes is the
same as that specified in part A, paragraph B.(5), of the
Accomplishment Instructions of the service bulletin: Before further
flight, replace the affected gearbox with a new or serviceable
gearbox, by doing all the actions per part B, paragraphs D. through
F.(7), of the Accomplishment Instructions of the service bulletin.
(2) If the wear value on both the left and right gearboxes is
the same as that specified in part A, paragraph B.(6), of the
Accomplishment Instructions of the service bulletin: Before further
flight, replace the gearbox having the higher wear value with a new
or serviceable gearbox, by doing all the actions per part B,
paragraphs D. through F.(7), of the Accomplishment Instructions of
the service bulletin. Within 1,000 flight hours after doing the
replacement, replace the other gearbox.
(3) If the wear value on only one gearbox is the same as that
specified in part A, paragraph B.(7), and the wear value on the
other gearbox is the same as that specified in part A, paragraph
B.(8), of the Accomplishment Instructions of the service bulletin:
Within 1,000 flight hours after the inspection, replace the gearbox
with the wear value that is the same as that specified in part A,
paragraph B.(7), with a new or serviceable gearbox. Do the
replacement by doing all the actions per part B, paragraphs D.
through F.(7), of the Accomplishment Instructions of the service
bulletin.
Additional Service Information
Note 2: Bombardier Service Bulletin 601R-76-019, dated August
21, 2003; and Revision `A,' dated February 19, 2004; reference Trans
Digm, Inc., AeroControlex Group, Service Bulletin 2100140-007-76-04,
dated July 22, 2003, as an additional source of service information
for accomplishment of the inspections and replacement.
Reporting Requirement
(h) At the applicable time specified in paragraph (h)(1) or
(h)(2) of this AD, submit a report of gearbox wear to Bombardier
Aerospace, In-Service Engineering (Engine Group); fax (514) 855-
7708. The report must include the airplane serial number, the number
of flight hours on the airplane, and the number of flight hours on
each gearbox (if different than the number of flight hours on the
airplane). Under the provisions of the Paperwork Reduction Act of
1980 (44 U.S.C. 3501 et seq.), the Office of Management and Budget
(OMB) has approved the information collection requirements contained
in this AD and has assigned OMB Control Number 2120-0056.
(1) For Bombardier Model CL-600-2B19 (Regional Jet Series 100 &
440) airplanes, serial numbers 7003 through 7067 inclusive, and 7069
through 7999 inclusive: Submit a report within 10 days after doing
the inspection required by paragraph (f) of this AD, or within 10
days after March 25, 2004, whichever is later.
(2) For Bombardier Model CL-600-2B19 (Regional Jet Series 100 &
440) airplanes, serial numbers 8000 and subsequent: Submit a report
within 10 days after doing the inspection required by paragraph (f)
of this AD, or within 10 days after the effective date of this AD,
whichever is later.
Alternative Methods of Compliance
(i) The Manager, New York Aircraft Certification Office, FAA,
has the authority to approve alternative methods of compliance
(AMOCs) for this AD, if requested using the procedures found in 14
CFR 39.19.
Related Information
(j) Canadian airworthiness directive CF-2004-01, dated January
21, 2004, also addresses the subject of this AD.
Material Incorporated by Reference
(k) You must use Bombardier Service Bulletin 601R-76-019, dated
August 21, 2003; or Bombardier Service Bulletin 601R-76-019,
Revision `A,' dated February 19, 2004; to perform the actions that
are required by this AD, unless the AD specifies otherwise.
(1) The Director of the Federal Register previously approved the
incorporation by reference of Bombardier Service Bulletin 601R-76-
019, Revision ``A,'' dated February 19, 2004; on July 9, 2004, (69
FR 35239, June 24, 2004).
(2) The Director of the Federal Register previously approved the
incorporation by
[[Page 12966]]
reference of Bombardier Service Bulletin 601R-76-019, dated August
21, 2003; on March 25, 2004 (69 FR 11293, March 10, 2004).
(3) You can get copies of the service information from
Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 6087, Station
Centre-ville, Montreal, Quebec H3C 3G9, Canada. You can review
copies at the Docket Management Facility, U.S. Department of
Transportation, 400 Seventh Street SW., room PL-401, Nassif
Building, Washington, DC; 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/code_of_federal_regulations/ibr_locations.html
.
Issued in Renton, Washington, on March 8, 2005.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-5139 Filed 3-16-05; 8:45 am]
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