Airworthiness Directives; Bombardier Model CL-600-2B16 (CL-604) Airplanes and Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes, 51990-51993 [E6-14617]
Download as PDF
Federal Register / Vol. 71, No. 170 / Friday, September 1, 2006 / Rules and Regulations
(i) Clean the end of each tailpipe assembly
with a cloth. While applying slight pressure
on it, inspect for a crack using a flashlight.
(ii) Inspect each tailpipe assembly toward
the centerline of the helicopter for a crack
using a flashlight.
(iii) Inspect each tailpipe assembly toward
the outboard side of the helicopter for a crack
using a mirror and a flashlight.
(3) If you find a crack, before further flight,
replace the tailpipe assembly with an
airworthy tailpipe assembly.
(b) To request a different method of
compliance or a different compliance time
for this AD, follow the procedures in 14 CFR
39.19. Contact the Manager, Safety
Management Group, FAA, ATTN: Ed Cuevas,
Aviation Safety Engineer, Fort Worth, Texas
76193–0111, telephone (817) 222–5355, fax
(817) 222–5961, for information about
previously approved alternative methods of
compliance.
Note 3: The subject of this AD is addressed
in the European Aviation Safety Agency
(EASA) AD 2006–0242–E, dated August 11,
2006.
allow repairs of certain cracks in each
tailpipe assembly.
(c) This amendment becomes effective on
September 18, 2006, to all persons except
those persons to whom it was made
immediately effective by Emergency AD
2006–17–51 issued August 15, 2006, which
contained the requirements of this
amendment.
DEPARTMENT OF TRANSPORTATION
Issued in Fort Worth, Texas, on August 24,
2006.
David A. Downey,
Manager, Rotorcraft Directorate, Aircraft
Certification Service.
[FR Doc. E6–14548 Filed 8–31–06; 8:45 am]
RIN 2120–AA64
BILLING CODE 4910–13–P
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14 CFR Part 39
[Docket No. FAA–2006–25724; Directorate
Identifier 2006–NM–197–AD; Amendment
39–14742; AD 2006–18–04]
Airworthiness Directives; Bombardier
Model CL–600–2B16 (CL–604)
Airplanes and Model CL–600–2B19
(Regional Jet Series 100 & 440)
Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule; request for
comments.
AGENCY:
SUMMARY: The FAA is adopting a new
airworthiness directive (AD) for certain
Bombardier Model CL–600–2B16 (CL–
Note 4: This AD differs from the BT and
the EASA AD in that the BT and EASA AD
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Federal Aviation Administration
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Federal Register / Vol. 71, No. 170 / Friday, September 1, 2006 / Rules and Regulations
604) airplanes and Model CL–600–2B19
(Regional Jet Series 100 & 440)
airplanes. These models may be referred
to by their marketing designations as
RJ100, RJ200, CRJ100, CRJ200, and CL–
65. This AD requires revising the
Emergency Procedures section of the
airplane flight manual (AFM) to advise
the flightcrew of additional procedures
to follow in the event of stabilizer trim
runaway. For certain airplanes, this AD
also requires revising the Abnormal
Procedures section of the AFM to advise
the flightcrew of procedures to follow in
the event of MACH TRIM, STAB TRIM,
and horizontal stabilizer trim
malfunctions. This AD results from
reports of uncommanded horizontal
stabilizer trim motion. We are issuing
this AD to ensure that the flightcrew is
advised of appropriate procedures to
follow in the event of stabilizer trim
runaway. Failure to follow these
procedures could result in excessive
uncommanded movement of the
horizontal stabilizer trim actuator
(HSTA) and loss of ability to use trim
switches to override uncommanded
movement or yoke disconnect switches
to disconnect the HSTA, which could
result in reduction of or loss of pitch
trim control and consequent reduced
controllability of the airplane.
This AD becomes effective
September 1, 2006.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in the AD
as of September 1, 2006.
We must receive comments on this
AD by October 31, 2006.
DATES:
Use one of the following
addresses to submit comments on this
AD.
• DOT Docket Web site: Go to https://
dms.dot.gov and follow the instructions
for sending your comments
electronically.
• Government-wide rulemaking Web
site: Go to https://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.
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:
Bruce Valentine, 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) 228–7328; fax
(516) 794–5531.
SUPPLEMENTARY INFORMATION:
ADDRESSES:
Discussion
Transport Canada Civil Aviation
(TCCA), which is the airworthiness
authority for Canada, notified us that an
unsafe condition may exist on certain
Bombardier Model CL–600–2B16 (CL–
604) airplanes and Model CL–600–2B19
(Regional Jet Series 100 & 440)
51991
airplanes. TCAA advises that there have
been reports of uncommanded
horizontal stabilizer trim motion on
Model CL–600–2B16 (CL–604)
airplanes. Investigation revealed
contamination of the circuit board of the
horizontal stabilizer trim control unit
(HSTCU). The circuit boards installed
on HSTCUs were not conformal coated
to protect against moisture exposure.
Contamination of the circuit board
could lead to one or more of the
following types of behavior:
• Erratic/intermittent uncommanded
movement of the horizontal stabilizer
trim actuator (HSTA).
• Uncommanded movement of the
HSTA to the full up or full down
position.
• Loss of the flightcrew’s ability to
override uncommanded movement by
use of the trim switches.
• Loss of the flightcrew’s ability to
disconnect the HSTA using the yoke
disconnect switches.
These conditions, if not corrected,
could result in reduction of or loss of
pitch trim control and consequent
reduced controllability of the airplane.
The HSTCU circuit boards on Model
CL–600–2B19 (Regional Jet Series 100 &
440) airplanes are identical to that on
the affected Model CL–600–2B16 (CL–
604) airplanes. Therefore, those Model
CL–600–2B19 (Regional Jet Series 100 &
440) airplanes may be subject to the
unsafe condition revealed on the Model
CL–600–2B16 (CL–604) airplanes.
Relevant Service Information
Canadair (Bombardier) has issued the
temporary revisions (TRs) specified in
the table below.
TABLE—TRS
For Bombardier model—
Use—
Dated—
CL–600–2B16 (CL–604) airplanes ..............................
Canadair Challenger TR
604/21.
Canadair Regional Jet TR
RJ/152–4.
August 1, 2006 .................
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CL–600–2B19 (Regional Jet Series 100 & 440) airplanes.
TR 604/21 describes revising the
Emergency Procedures section of the
airplane flight manual (AFM) to advise
the flightcrew of additional procedures
to follow in the event of stabilizer trim
runaway. TR RJ/152–4 describes
revising the Emergency and Abnormal
Procedures sections of the AFM to
advise the flightcrew of additional
procedures to follow in the event of
stabilizer trim runaway and to advise
the flightcrew of procedures to follow in
the event of MACH TRIM, STAB TRIM,
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August 9, 2006 .................
and horizontal stabilizer trim
malfunctions.
TCCA mandated the service
information and issued Canadian
airworthiness directives CF–2006–20,
dated August 22, 2006, and CF–2006–
21, dated August 23, 2006, 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
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To the—
Canadair Challenger CL–604
AFM, PSP 604–1.
Canadair Regional Jet AFM,
CSP A–012.
certificated for operation in the United
States under the provisions of section
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 the FAA informed of the situation
described above. We have examined
TCCA’s findings, evaluated all pertinent
information, and determined that we
need to issue an AD for products of this
type design that are certificated for
operation in the United States.
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Federal Register / Vol. 71, No. 170 / Friday, September 1, 2006 / Rules and Regulations
Therefore, we are issuing this AD to
ensure that the flightcrew is advised of
appropriate procedures to follow in the
event of stabilizer trim runaway. Failure
to follow these procedures could result
in excessive uncommanded movement
of the HSTA and loss of ability to use
trim switches to override uncommanded
movement or yoke disconnect switches
to disconnect the HSTA, which could
result in reduction of or loss of pitch
trim control and consequent reduced
controllability of the airplane. This AD
requires revising the Emergency and
Abnormal Procedures sections, as
applicable, of the AFM to advise the
flightcrew of additional procedures to
follow in the event of stabilizer trim
runaway. This AD follows the Canadian
airworthiness directives referred to
previously and adopts the same
requirements.
Interim Action
We consider this AD interim action.
The manufacturer is currently
developing service bulletins that specify
replacing HSTCU circuit boards with
HSTCU circuit boards having conformal
coating and is exploring other interim
measures that will address the
identified unsafe condition specified in
this AD. Once new service information
is developed, approved, and available,
we may consider additional rulemaking.
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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 in the
ADDRESSES section. Include ‘‘Docket No.
FAA–2006–25724; Directorate Identifier
2006–NM–197–AD’’ at the beginning of
your comments. We specifically invite
comments on the overall regulatory,
economic, environmental, and energy
aspects of the AD that might suggest a
need to modify it.
We will post all comments we
receive, without change, to https://
dms.dot.gov, including any personal
information you provide. We will also
post a report summarizing each
substantive verbal contact with FAA
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16:15 Aug 31, 2006
Jkt 208001
personnel concerning this AD. Using the
search function of that 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 may review the DOT’s complete
Privacy Act Statement in the Federal
Register published on April 11, 2000
(65 FR 19477–78), or you may visit
https://dms.dot.gov.
Examining the Docket
You may examine the AD docket on
the Internet at https://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 Docket
Management System receives them.
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;
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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.
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
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as
follows:
I
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
I
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The Federal Aviation
Administration (FAA) amends § 39.13
by adding the following new
airworthiness directive (AD):
I
2006–18–04 Bombardier, Inc. (Formerly
Canadair): Amendment 39–14742.
Docket No. FAA–2006–25724;
Directorate Identifier 2006–NM–197–AD.
Effective Date
(a) This AD becomes effective September 1,
2006.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier Model
CL–600–2B16 (CL–604) airplanes, serial
numbers 5301 and subsequent; and Model
CL–600–2B19 (Regional Jet Series 100 & 440)
airplanes, serial numbers 7003 through 7990
inclusive and 8000 and subsequent;
certificated in any category.
Note 1: The Model CL–600–2B19 (Regional
Jet Series 100 & 440) airplanes may be
referred to by their marketing designations as
RJ100, RJ200, CRJ100, CRJ200, and CL–65.
Unsafe Condition
(d) This AD results from reports of
uncommanded horizontal stabilizer trim
motion. We are issuing this AD to ensure that
the flightcrew is advised of appropriate
procedures to follow in the event of stabilizer
trim runaway. Failure to follow these
procedures could result in excessive
uncommanded movement of the horizontal
stabilizer trim actuator (HSTA) and loss of
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Federal Register / Vol. 71, No. 170 / Friday, September 1, 2006 / Rules and Regulations
ability to use trim switches to override
uncommanded movement or yoke disconnect
switches to disconnect the HSTA, which
could result in reduction of or loss of pitch
trim control and consequent reduced
controllability of the airplane.
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.
Airplane Flight Manual (AFM) Revision
(f) Within 7 days after the effective date of
this AD, make the applicable AFM revisions
specified in paragraph (f)(1) or (f)(2) of this
AD by incorporating the applicable Canadair
(Bombardier) temporary revisions (TRs)
identified in Table 1 of this AD into the
applicable AFM.
(1) For Model CL–600–2B16 (CL–604)
airplanes: Revise the Emergency Procedures
section of the AFM to advise the flightcrew
51993
of additional procedures to follow in the
event of stabilizer trim runaway.
(2) For Model CL–600–2B19 (Regional Jet
Series 100 & 440) airplanes: Revise the
Emergency and Abnormal Procedures
sections of the AFM to advise the flightcrew
of additional procedures to follow in the
event of stabilizer trim runaway and in the
event of MACH TRIM, STAB TRIM, and
horizontal stabilizer trim malfunctions.
TABLE 1.—TRS
For Bombardier Model—
Use—
Dated—
CL–600–2B16 (CL–604) airplanes ..............................
Canadair Challenger TR
604/21.
Canadair Regional Jet TR
RJ/152–4.
August 1, 2006 .................
CL–600–2B19 (Regional Jet Series 100 & 440) airplanes.
(g) When the applicable TR has been
included in the general revisions of the
applicable AFM, those general revisions may
be inserted into the AFM and the applicable
TR may be removed, provided the relevant
information in the general revisions is
identical to that in the TR.
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) Before using any AMOC approved in
accordance with § 39.19 on any airplane to
which the AMOC applies, notify the
To the—
August 9, 2006 .................
appropriate principal inspector in the FAA
Flight Standards Certificate Holding District
Office.
Related Information
(i) Canadian airworthiness directives CF–
2006–20, dated August 22, 2006, and CF–
2006–21, dated August 23, 2006, also address
the subject of this AD.
Material Incorporated by Reference
(j) You must use the applicable service
information specified 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.
Canadair Challenger CL–604
AFM, PSP 604–1.
Canadair Regional Jet AFM,
CSP A–012.
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 Docket Management
Facility, U.S. Department of Transportation,
400 Seventh Street SW., Room PL–401,
Nassif Building, Washington, DC; on the
Internet at https://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 https://
www.archives.gov/federal_register/
code_of_federal_regulations/
ibr_locations.html.
TABLE 2.—TEMPORARY REVISIONS INCORPORATED BY REFERENCE
Temporary revision
Dated—
To the—
Canadair Challenger Temporary Revision 604/21 .........................................
August 1, 2006 ..................................
Canadair Regional Jet Temporary Revision RJ/152–4 ..................................
August 9, 2006 ..................................
Canadair Challenger CL–
604 Airplane Flight Manual, PSP 604–1.
Canadair Regional Jet Airplane Flight Manual, CSP
A–012.
Issued in Renton, Washington, on August
29, 2006.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E6–14617 Filed 8–31–06; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 71
[Docket No. 29334; Amendment No. 71–38]
Airspace Designations; Incorporation
by Reference
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
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AGENCY:
SUMMARY: This action amends Title 14
Code of Federal Regulations (14 CFR)
part 71 relating to airspace designations
to reflect the approval by the Director of
the Federal Register of the
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16:15 Aug 31, 2006
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incorporation by reference of FAA
Order 7400.9P, Airspace Designations
and Reporting Points. This action also
explains the procedures the FAA will
use to amend the listings of Class A, B,
C, D, and E airspace areas; air traffic
service routes; and reporting points
incorporated by reference.
DATES: Effective Date: These regulations
are effective September 15, 2006,
through September 15, 2007. The
incorporation by reference of FAA
Order 7400.9P is approved by the
Director of the Federal Register as of
September 15, 2006, through September
15, 2007.
FOR FURTHER INFORMATION CONTACT:
Tameka Bentley, Airspace and Rules,
Office of System Operations Airspace
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Agencies
[Federal Register Volume 71, Number 170 (Friday, September 1, 2006)]
[Rules and Regulations]
[Pages 51990-51993]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E6-14617]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2006-25724; Directorate Identifier 2006-NM-197-AD;
Amendment 39-14742; AD 2006-18-04]
RIN 2120-AA64
Airworthiness Directives; Bombardier Model CL-600-2B16 (CL-604)
Airplanes and 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 adopting a new airworthiness directive (AD) for
certain Bombardier Model CL-600-2B16 (CL-
[[Page 51991]]
604) airplanes and Model CL-600-2B19 (Regional Jet Series 100 & 440)
airplanes. These models may be referred to by their marketing
designations as RJ100, RJ200, CRJ100, CRJ200, and CL-65. This AD
requires revising the Emergency Procedures section of the airplane
flight manual (AFM) to advise the flightcrew of additional procedures
to follow in the event of stabilizer trim runaway. For certain
airplanes, this AD also requires revising the Abnormal Procedures
section of the AFM to advise the flightcrew of procedures to follow in
the event of MACH TRIM, STAB TRIM, and horizontal stabilizer trim
malfunctions. This AD results from reports of uncommanded horizontal
stabilizer trim motion. We are issuing this AD to ensure that the
flightcrew is advised of appropriate procedures to follow in the event
of stabilizer trim runaway. Failure to follow these procedures could
result in excessive uncommanded movement of the horizontal stabilizer
trim actuator (HSTA) and loss of ability to use trim switches to
override uncommanded movement or yoke disconnect switches to disconnect
the HSTA, which could result in reduction of or loss of pitch trim
control and consequent reduced controllability of the airplane.
DATES: This AD becomes effective September 1, 2006.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in the AD as of September 1,
2006.
We must receive comments on this AD by October 31, 2006.
ADDRESSES: Use one of the following addresses to submit comments on
this AD.
DOT Docket Web site: Go to https://dms.dot.gov and follow
the instructions for sending your comments electronically.
Government-wide rulemaking Web site: Go to https://
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.
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: Bruce Valentine, 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) 228-7328; fax (516) 794-5531.
SUPPLEMENTARY INFORMATION:
Discussion
Transport Canada Civil Aviation (TCCA), which is the airworthiness
authority for Canada, notified us that an unsafe condition may exist on
certain Bombardier Model CL-600-2B16 (CL-604) airplanes and Model CL-
600-2B19 (Regional Jet Series 100 & 440) airplanes. TCAA advises that
there have been reports of uncommanded horizontal stabilizer trim
motion on Model CL-600-2B16 (CL-604) airplanes. Investigation revealed
contamination of the circuit board of the horizontal stabilizer trim
control unit (HSTCU). The circuit boards installed on HSTCUs were not
conformal coated to protect against moisture exposure. Contamination of
the circuit board could lead to one or more of the following types of
behavior:
Erratic/intermittent uncommanded movement of the
horizontal stabilizer trim actuator (HSTA).
Uncommanded movement of the HSTA to the full up or full
down position.
Loss of the flightcrew's ability to override uncommanded
movement by use of the trim switches.
Loss of the flightcrew's ability to disconnect the HSTA
using the yoke disconnect switches.
These conditions, if not corrected, could result in reduction of or
loss of pitch trim control and consequent reduced controllability of
the airplane.
The HSTCU circuit boards on Model CL-600-2B19 (Regional Jet Series
100 & 440) airplanes are identical to that on the affected Model CL-
600-2B16 (CL-604) airplanes. Therefore, those Model CL-600-2B19
(Regional Jet Series 100 & 440) airplanes may be subject to the unsafe
condition revealed on the Model CL-600-2B16 (CL-604) airplanes.
Relevant Service Information
Canadair (Bombardier) has issued the temporary revisions (TRs)
specified in the table below.
Table--TRs
----------------------------------------------------------------------------------------------------------------
For Bombardier model-- Use-- Dated-- To the--
----------------------------------------------------------------------------------------------------------------
CL-600-2B16 (CL-604) airplanes. Canadair August 1, 2006.... Canadair Challenger CL-604 AFM, PSP 604-
Challenger TR 604/ 1.
21.
CL-600-2B19 (Regional Jet Canadair Regional August 9, 2006.... Canadair Regional Jet AFM, CSP A-012.
Series 100 & 440) airplanes. Jet TR RJ/152-4.
----------------------------------------------------------------------------------------------------------------
TR 604/21 describes revising the Emergency Procedures section of
the airplane flight manual (AFM) to advise the flightcrew of additional
procedures to follow in the event of stabilizer trim runaway. TR RJ/
152-4 describes revising the Emergency and Abnormal Procedures sections
of the AFM to advise the flightcrew of additional procedures to follow
in the event of stabilizer trim runaway and to advise the flightcrew of
procedures to follow in the event of MACH TRIM, STAB TRIM, and
horizontal stabilizer trim malfunctions.
TCCA mandated the service information and issued Canadian
airworthiness directives CF-2006-20, dated August 22, 2006, and CF-
2006-21, dated August 23, 2006, 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
certificated for operation in the United States under the provisions of
section 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 the FAA informed of
the situation described above. We have examined TCCA's findings,
evaluated all pertinent information, and determined that we need to
issue an AD for products of this type design that are certificated for
operation in the United States.
[[Page 51992]]
Therefore, we are issuing this AD to ensure that the flightcrew is
advised of appropriate procedures to follow in the event of stabilizer
trim runaway. Failure to follow these procedures could result in
excessive uncommanded movement of the HSTA and loss of ability to use
trim switches to override uncommanded movement or yoke disconnect
switches to disconnect the HSTA, which could result in reduction of or
loss of pitch trim control and consequent reduced controllability of
the airplane. This AD requires revising the Emergency and Abnormal
Procedures sections, as applicable, of the AFM to advise the flightcrew
of additional procedures to follow in the event of stabilizer trim
runaway. This AD follows the Canadian airworthiness directives referred
to previously and adopts the same requirements.
Interim Action
We consider this AD interim action. The manufacturer is currently
developing service bulletins that specify replacing HSTCU circuit
boards with HSTCU circuit boards having conformal coating and is
exploring other interim measures that will address the identified
unsafe condition specified in this AD. Once new service information is
developed, approved, and available, we may consider additional
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 in the ADDRESSES section. Include ``Docket No. FAA-2006-
25724; Directorate Identifier 2006-NM-197-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of the AD that might
suggest a need to modify it.
We will post all comments we receive, without change, to https://
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 that 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 may review the DOT's complete Privacy Act Statement in the Federal
Register published on April 11, 2000 (65 FR 19477-78), or you may visit
https://dms.dot.gov.
Examining the Docket
You may examine the AD docket on the Internet at https://
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 Docket Management System
receives them.
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 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):
2006-18-04 Bombardier, Inc. (Formerly Canadair): Amendment 39-14742.
Docket No. FAA-2006-25724; Directorate Identifier 2006-NM-197-AD.
Effective Date
(a) This AD becomes effective September 1, 2006.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier Model CL-600-2B16 (CL-604)
airplanes, serial numbers 5301 and subsequent; and Model CL-600-2B19
(Regional Jet Series 100 & 440) airplanes, serial numbers 7003
through 7990 inclusive and 8000 and subsequent; certificated in any
category.
Note 1: The Model CL-600-2B19 (Regional Jet Series 100 & 440)
airplanes may be referred to by their marketing designations as
RJ100, RJ200, CRJ100, CRJ200, and CL-65.
Unsafe Condition
(d) This AD results from reports of uncommanded horizontal
stabilizer trim motion. We are issuing this AD to ensure that the
flightcrew is advised of appropriate procedures to follow in the
event of stabilizer trim runaway. Failure to follow these procedures
could result in excessive uncommanded movement of the horizontal
stabilizer trim actuator (HSTA) and loss of
[[Page 51993]]
ability to use trim switches to override uncommanded movement or
yoke disconnect switches to disconnect the HSTA, which could result
in reduction of or loss of pitch trim control and consequent reduced
controllability of the airplane.
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.
Airplane Flight Manual (AFM) Revision
(f) Within 7 days after the effective date of this AD, make the
applicable AFM revisions specified in paragraph (f)(1) or (f)(2) of
this AD by incorporating the applicable Canadair (Bombardier)
temporary revisions (TRs) identified in Table 1 of this AD into the
applicable AFM.
(1) For Model CL-600-2B16 (CL-604) airplanes: Revise the
Emergency Procedures section of the AFM to advise the flightcrew of
additional procedures to follow in the event of stabilizer trim
runaway.
(2) For Model CL-600-2B19 (Regional Jet Series 100 & 440)
airplanes: Revise the Emergency and Abnormal Procedures sections of
the AFM to advise the flightcrew of additional procedures to follow
in the event of stabilizer trim runaway and in the event of MACH
TRIM, STAB TRIM, and horizontal stabilizer trim malfunctions.
Table 1.--TRs
----------------------------------------------------------------------------------------------------------------
For Bombardier Model-- Use-- Dated-- To the--
----------------------------------------------------------------------------------------------------------------
CL-600-2B16 (CL-604) airplanes. Canadair August 1, 2006.... Canadair Challenger CL-604 AFM, PSP 604-
Challenger TR 604/ 1.
21.
CL-600-2B19 (Regional Jet Canadair Regional August 9, 2006.... Canadair Regional Jet AFM, CSP A-012.
Series 100 & 440) airplanes. Jet TR RJ/152-4.
----------------------------------------------------------------------------------------------------------------
(g) When the applicable TR has been included in the general
revisions of the applicable AFM, those general revisions may be
inserted into the AFM and the applicable TR may be removed, provided
the relevant information in the general revisions is identical to
that in the TR.
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) Before using any AMOC approved in accordance with Sec.
39.19 on any airplane to which the AMOC applies, notify the
appropriate principal inspector in the FAA Flight Standards
Certificate Holding District Office.
Related Information
(i) Canadian airworthiness directives CF-2006-20, dated August
22, 2006, and CF-2006-21, dated August 23, 2006, also address the
subject of this AD.
Material Incorporated by Reference
(j) You must use the applicable service information specified 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 Docket Management
Facility, U.S. Department of Transportation, 400 Seventh Street SW.,
Room PL-401, Nassif Building, Washington, DC; on the Internet at
https://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 https://
www.archives.gov/federal_register/code_of_federal_regulations/
ibr_locations.html.
Table 2.--Temporary Revisions Incorporated by Reference
----------------------------------------------------------------------------------------------------------------
Temporary revision Dated-- To the--
----------------------------------------------------------------------------------------------------------------
Canadair Challenger Temporary Revision August 1, 2006............ Canadair Challenger CL-604 Airplane Flight
604/21. Manual, PSP 604-1.
Canadair Regional Jet Temporary August 9, 2006............ Canadair Regional Jet Airplane Flight
Revision RJ/152-4. Manual, CSP A-012.
----------------------------------------------------------------------------------------------------------------
Issued in Renton, Washington, on August 29, 2006.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E6-14617 Filed 8-31-06; 8:45 am]
BILLING CODE 4910-13-P