[Federal Register: December 28, 2006 (Volume 71, Number 249)]
[Proposed Rules]
[Page 78096-78099]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr28de06-15]
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Proposed Rules
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains notices to the public of
the proposed issuance of rules and regulations. The purpose of these
notices is to give interested persons an opportunity to participate in
the rule making prior to the adoption of the final rules.
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[[Page 78096]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2006-26378; Directorate Identifier 2006-NM-230-AD]
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: Supplemental notice of proposed rulemaking (NPRM); reopening of
comment period.
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SUMMARY: The FAA is revising an earlier NPRM for an airworthiness
directive (AD) that applies to certain Bombardier Model CL-600-2B16
(CL-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, RJ440, CRJ100, CRJ200, CRJ440, and CL-65.
The original NPRM would have superseded an existing AD that currently
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. The existing 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. The existing AD also
requires revising the Normal section of the AFM to require a review of
the location of certain circuit breakers and a functional check of the
stabilizer trim system. In addition, the existing AD requires
installing circuit breaker identification collars and provides an
optional terminating action for the requirements of the AD. The
original NPRM proposed to require doing the previously optional
terminating action (installation of a new horizontal stabilizer trim
control unit). The original NPRM resulted from a determination that the
terminating action is necessary to address reports of uncommanded
horizontal stabilizer trim motion. This new action revises the original
NPRM by not allowing the removal of applicable temporary revisions
(TRs) to the Emergency and Abnormal Procedures sections of the AFM and
by adding the proposed requirement for certain airplanes to re-insert
the applicable TRs of the Emergency and Abnormal Procedures sections of
the AFM under certain conditions. We are proposing this supplemental
NPRM to prevent horizontal stabilizer trim uncommanded motion, which
could result in reduced controllability of the airplane.
DATES: We must receive comments on this supplemental NPRM by January
17, 2007.
ADDRESSES: Use one of the following addresses to submit comments on
this proposed 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.
Contact Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 6087,
Station Centre-ville, Montreal, Quebec H3C 3G9, Canada, for service
information identified in this proposed 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:
Comments Invited
We invite you to submit any relevant written data, views, or
arguments regarding this proposal. Send your comments to an address
listed in the ADDRESSES section. Include the docket number ``Docket No.
FAA-2006-26378; Directorate Identifier 2006-NM-230-AD'' at the
beginning of your comments. We specifically invite comments on the
overall regulatory, economic, environmental, and energy aspects of this
supplemental NPRM. We will consider all comments received by the
closing date and may amend this supplemental NPRM in light of those
comments.
We will post all comments submitted, 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 proposed 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 http://dms.dot.gov.
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 DOT
street address stated in ADDRESSES. Comments will be available in the
AD docket shortly after the Docket Management System receives them.
Discussion
The FAA issued a notice of proposed rulemaking (NPRM) (the
``original NPRM'') to amend 14 CFR part 39 to include an AD that
supersedes AD 2006-22-06, amendment 39-14803 (71 FR 63219, October 30,
2006). The existing AD applies to certain Bombardier Model CL-600-2B16
(CL-604) airplanes and Model CL-600-2B19 (Regional Jet Series 100 &
440)
[[Page 78097]]
airplanes. The original NPRM was published in the Federal Register on
November 22, 2006 (71 FR 67502). The original NPRM proposed to
supersede AD 2006-22-06 and proposed to require terminating action
(installation of a new horizontal stabilizer trim control unit
(HSTCU)).
Actions Since Original NPRM Was Issued
Since we issued the original NPRM, we determined that paragraph (m)
of AD 2006-22-06 inadvertently allows the removal of the airplane
flight manual (AFM) revisions specified in paragraph (h) of AD 2006-22-
06. We also determined that paragraph (l) of the original NPRM
inadvertently allowed the same removal of the AFM revisions. The AFM
revisions specified in paragraph (f) of the original NPRM (which
correspond to the AFM revisions specified in paragraph (h) of the AD
2006-22-06) should not be allowed to be removed after the installation
specified in paragraph (l) of the original NPRM unless the revision is
incorporated into the general revisions of the corresponding AFM.
Therefore, we have revised paragraph (l) of this supplemental NPRM
by removing the phrase ``the AFM revisions required by paragraph (f) of
this AD may be removed from the applicable AFM.''
We have also added paragraph (n) of this supplemental NPRM to
propose to reinsert the AFM revisions specified in paragraph (f) of
this supplemental NPRM for airplanes for which the AFM revisions have
been removed in accordance with the requirements of paragraph (m) of
the AD 2006-22-06.
FAA's Determination and Proposed Requirements of the Supplemental NPRM
The changes discussed above expand the scope of the original NPRM;
therefore, we have determined that it is necessary to reopen the
comment period to provide additional opportunity for public comment on
this supplemental NPRM.
Costs of Compliance
The following table provides the estimated costs for U.S. operators
to comply with this proposed AD. The average labor rate is $80 per work
hour.
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Number of
U.S.-
Action Work hours Parts Cost per airplane registered Fleet cost
airplanes
----------------------------------------------------------------------------------------------------------------
AFM Revisions and Installation 2 $3............... $163............. 875 $142,625
of Circuit Breaker Collars
(required by AD 2006-22-06).
Installation of HSTCU (new 11 Between $2,530 Between $3,410 875 Between
proposed action). and $3,995. and $4,875. $2,983,750 and
$4,265,625
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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 proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would 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 proposed
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 supplemental NPRM 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, Safety.
The Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 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. The Federal Aviation Administration (FAA) amends Sec. 39.13 by
removing amendment 39-14803 (71 FR 63219, October 30, 2006) and adding
the following new airworthiness directive (AD):
Bombardier, Inc. (Formerly Canadair): Docket No. FAA-2006-26378;
Directorate Identifier 2006-NM-230-AD.
Comments Due Date
(a) The FAA must receive comments on this AD action by January
17, 2007.
Affected ADs
(b) This AD supersedes AD 2006-22-06.
Applicability
(c) This AD applies to Bombardier Model CL-600-2B16 (CL-604)
airplanes, serial numbers 5301 through 5665 inclusive; and Model CL-
600-2B19 (Regional Jet Series 100 & 440) airplanes, serial numbers
7003 through 7990 inclusive and 8000 through 8066 inclusive;
certificated in any category.
Note 1: The Model CL-600-2B19 (Regional Jet Series 100 & 440)
airplanes may be
[[Page 78098]]
referred to by their marketing designations as RJ100, RJ200, RJ440,
CRJ100, CRJ200, CRJ440, and CL-65.
Unsafe Condition
(d) This AD results from reports of uncommanded horizontal
stabilizer trim motion. We are issuing this AD to prevent horizontal
stabilizer trim uncommanded motion, which could result in 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.
Restatement of Certain Requirements of AD 2006-22-06
Airplane Flight Manual (AFM) Revisions
(f) Within 14 days after November 14, 2006 (the effective date
of AD 2006-22-06), 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 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 revised
procedures to follow in the event of MACH TRIM, STAB TRIM, and
horizontal stabilizer trim malfunctions.
(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 revised 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
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For Bombardier Model Use Dated To the
----------------------------------------------------------------------------------------------------------------
CL-600-2B16 (CL-604) airplanes.... Canadair Challenger TR 604/ October 3, 2006...... Canadair Challenger CL-
21-1. 604 AFM, PSP 604-1.
CL-600-2B19 (Regional Jet Series Canadair Regional Jet TR October 3, 2006...... Canadair Regional Jet
100 & 440) airplanes. RJ/152-5. AFM, CSP A-012.
----------------------------------------------------------------------------------------------------------------
(g) When the applicable TR specified in paragraph (f) of this AD
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.
Installation of Circuit Breaker Identification Collars
(h) Within 14 days after November 14, 2006, install circuit
breaker identification collars in accordance with Bombardier
Modification Summary Package IS601R27410051, Revision C, dated
September 29, 2006 (for Model CL-600-2B19 (Regional Jet Series 100 &
440) airplanes); or the Accomplishment Instructions of Bombardier
Alert Service Bulletin A604-27-029, dated September 28, 2006 (for
Model CL-600-2B16 (CL-604) airplanes); as applicable.
Additional AFM Revision
(i) For Model CL-600-2B19 (Regional Jet Series 100 & 440)
airplanes: Within 14 days after November 14, 2006, revise the Normal
section of the Canadair Regional Jet AFM, CSP A-012, to include the
statement specified in Figure 1 of this AD. This may be done by
inserting a copy of Figure 1 of this AD into the AFM.
``Prior to the flightcrew's first flight of the day, do the
following actions:
1. Review the location of the STAB CH1 HSTCU and STAB CH2 HSTCU
circuit breakers.
2. Complete a functional check of the stabilizer trim system as
detailed below.
Control Wheel Stab Trim Disconnect Check
Control Wheel Stab Trim Disconnect switches--Check
Make sure STAB TRIM caution message is out.
Activate the pilot's Control
Wheel Stab Trim Disconnect switch and make sure the STAB TRIM
caution message comes on.
Note: During ground testing only, do not activate the Control
Wheel Stab Trim Disconnect switch if the horizontal stabilizer trim
is in motion.
Engage the STAB TRIM switches and make sure the STAB TRIM
caution message is out.
Activate the co-pilot's Control Wheel Stab Trim Disconnect
switch and make sure the STAB TRIM caution message comes on.
Engage the STAB TRIM and MACH TRIM switches and make sure
the STAB TRIM and MACH TRIM caution messages are out.''
Figure 1
Note 2: When a statement identical to that in paragraph (i) of
this AD has been included in the general revisions of the applicable
AFM, those general revisions may be inserted into the AFM, and the
copy of this AD may be removed from the AFM.
(j) For Model CL-600-2B16 (CL-604) airplanes: Within 14 days
after November 14, 2006, revise the Normal section of the Canadair
Challenger CL-604 AFM, PSP 604-1, to include the following
statement. This may be done by inserting a copy of this AD into the
AFM.
``Prior to the flightcrew's first flight of the day, do the
following actions:
1. Review the location of the STAB CH1 HSTCU and STAB CH2 HSTCU
circuit breakers.
2. Check the stabilizer trim system as detailed in CL-604 AFM
`Normal Procedures' section titled `Flight Controls Trim Systems,
Before Flight--First Flight of the Day.' ''
Note 3: When a statement identical to that in paragraph (j) of
this AD has been included in the general revisions of the applicable
AFM, those general revisions may be inserted into the AFM, and the
copy of this AD may be removed from the AFM.
Previous Actions Accomplished According to Modification Summary
Package
(k) Actions accomplished before November 14, 2006, in accordance
with Bombardier Modification Summary Package IS601R27410051,
Revision A, dated September 18, 2006; or Revision B, dated September
27, 2006; are considered acceptable for compliance with the action
specified in paragraph (h) of this AD, provided that the circuit
breaker collars meet the color requirements of Bombardier
Modification Summary Package IS601R27410051, Revision C, dated
September 29, 2006.
New Requirements of This AD
Terminating Action--Installation of New, Improved Part
(l) Within 9 months after the effective date of this AD, install
horizontal stabilizer trim control unit (HSTCU), part number (P/N)
601R92301-15 (vendor P/N 7060-10) or higher dash number, in
accordance with the Accomplishment Instructions of Bombardier Alert
Service Bulletin A604-27-029, dated September 28, 2006 (for Model
CL-600-2B16 (CL-604) airplanes); or Bombardier Service Bulletin
601R-27-147, dated September 28, 2006 (for Model CL-600-2B19
(Regional Jet Series 100 & 440) airplanes); as applicable. After
doing the installation, the circuit breaker identification collars
required by paragraph (h) of this AD may be removed. After doing the
installation, the AFM revision required by paragraphs (i) and (j) of
this AD may also be removed from the AFM but operators should note
that the functional check of the stabilizer trim system on the
airplane's first flight of the day must still be done.
Note 4: Bombardier Service Bulletin 601R-27-147, dated September
28, 2006, refers to Sagem Service Bulletin HSTCU-27-011, dated
September 22, 2006, as an additional source of service information
for accomplishment of the installation.
[[Page 78099]]
Service Bulletin Exception
(m) Although Bombardier Alert Service Bulletin A604-27-029,
dated September 28, 2006, specifies to return certain parts to the
manufacturer, this AD does not include that requirement.
Reinsert AFM Revisions
(n) For airplanes on which the AFM revisions required by
paragraph (f) of this AD were removed from the applicable AFM before
the effective date of this AD: Within 14 days after the effective
date of this AD, reinsert the applicable AFM revisions specified in
paragraph (f) of this AD. When the applicable TR specified in
paragraph (f) of this AD has been included in the general revisions
of the applicable AFM, the applicable TR may be removed.
Alternative Methods of Compliance (AMOCs)
(o)(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
(p) Canadian airworthiness directives CF-2006-20R1, dated
October 4, 2006, and CF-2006-21R1, dated October 3, 2006, also
address the subject of this AD.
Issued in Renton, Washington, on December 14, 2006.
Stephen P. Boyd,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E6-22271 Filed 12-27-06; 8:45 am]
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