[Federal Register: June 22, 2005 (Volume 70, Number 119)]
[Proposed Rules]
[Page 36067-36070]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr22jn05-34]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2005-21599; Directorate Identifier 2005-NM-036-AD]
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: Notice of proposed rulemaking (NPRM).
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SUMMARY: The FAA proposes to supersede an existing airworthiness
directive (AD) that applies to all Bombardier Model CL-600-2B19 series
airplanes. The existing AD currently requires revising the Airplane
Flight Manual (AFM) to provide the flightcrew with operating
limitations and procedures to enable them to maintain controllability
of the airplane in the event that aileron control stiffness is
encountered during flight. This proposed AD would revise the
Airworthiness Limitations section of the Instructions of Continued
Airworthiness to incorporate certain repetitive tasks for the aileron
control system and would require a briefing to advise flight crews that
certain aileron control checks are no longer required. After
accomplishing the applicable initial tasks, the existing AFM revisions
for the aileron control check may be removed from the AFM. This
proposed AD is prompted by the development of terminating actions for
the AFM revisions. We are proposing this AD to prevent aileron control
stiffness during flight, which could result in reduced or possible loss
of controllability of the airplane.
DATES: We must receive comments on this proposed AD by July 22, 2005.
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.
For service information identified in this proposed 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-2005-21599; the directorate identifier for this docket is
2005-NM-036-AD.
FOR FURTHER INFORMATION CONTACT: Dan Parillo, Aerospace Engineer,
Systems and Flight Test Branch, ANE-172, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Westbury, suite 410, 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 proposed AD. Send your comments to an address
listed under ADDRESSES. Include ``Docket No. FAA-
[[Page 36068]]
2005-21599; Directorate Identifier 2005-NM-036-AD'' at the beginning of
your comments. We specifically invite comments on the overall
regulatory, economic, environmental, and energy aspects of the proposed
AD. We will consider all comments received by the closing date and may
amend the proposed 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 proposed 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.
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 Docket Management System
(DMS) receives them.
Discussion
On September 16, 2002, we issued AD 2002-19-07, amendment 39-12887
(67 FR 60117, September 25, 2002), for all Bombardier Model CL-600-2B19
series airplanes. That AD requires revising the Canadair Regional Jet
Airplane Flight Manual (AFM) to provide the flightcrew with operating
limitations and procedures to enable them to maintain controllability
of the airplane in the event that aileron control stiffness is
encountered during flight. That AD was prompted by a significant number
of reports of aileron control stiffness. We issued that AD to prevent
aileron control stiffness during flight, which could result in the
reduction or possible loss of controllability of the airplane.
Actions Since Existing AD Was Issued
Since we issued AD 2002-19-07, Transport Canada Civil Aviation
(TCCA), which is the airworthiness authority for Canada, issued
Canadian airworthiness directive CF-2002-35R2 on January 6, 2005 (CF-
2002-35R1, dated August 16, 2002, was referenced in AD 2002-19-07).
TCCA mandated the service information described below and a briefing to
advise flight crews that aileron control checks are no longer required
to ensure the continued airworthiness of the affected airplanes in
Canada.
The airplane manufacturer has issued Canadair Regional Jet
Temporary Revision (TR) 2B-2068, dated December 13, 2004, which
describes, among others, the tasks specified in the following table.
Accomplishing the applicable initial tasks eliminates the need for the
AFM revisions for the aileron control check required by AD 2002-19-07.
The compliance time for the applicable initial tasks range between
1,000 flight hours and 10,500 flight hours.
Table--Affected Task Numbers
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Task No. Description
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R22-11-A083-01................................................................ Lubrication of aileron autopilot
servo and servo mount engage
clutch faces.
R27-00-A053-01................................................................ Replacement of the aileron
control pulleys with new or
serviceable parts.
R27-11-A082-01................................................................ Lubrication of the aileron
control cables at the wing
pulley interfaces.
R27-11-A082-02................................................................ Lubrication of the aileron rear
quadrant and trim lever
bearings.
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Accomplishing the actions specified in the service information is
intended to adequately address the unsafe condition.
FAA's Determination and Requirements of the Proposed AD
This airplane model is manufactured in Canada and is 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 AD action is
necessary for airplanes of this type design that are certificated for
operation in the United States.
This proposed AD would supersede AD 2002-19-07. This proposed AD
would retain the requirements of the existing AD (i.e., AFM revisions).
This proposed AD would also require revising the Airworthiness
Limitations (AWL) section of the Instructions of Continued
Airworthiness to incorporate certain repetitive tasks for the aileron
control system specified in Canadair Regional Jet TR 2B-2068 described
previously. After accomplishing the applicable initial tasks, the AFM
revisions for the aileron control checks required by AD 2002-19-07 may
be removed from the AFM.
Difference Between the Proposed AD and Canadian Airworthiness Directive
Canadian airworthiness directive CF-2002-35R2 mandates revising the
AFM by inserting a copy of the changes specified in Canadair Regional
Jet TR RJ/142, dated August 16, 2004, into AFM CSP A-012. The TR
specifies to delete the aileron control check and procedures covering
suspected frozen ailerons, which were incorporated by the AFM revisions
required by AD 2002-19-07 (paragraph (g) of this proposed AD). We have
determined that the following sentence in paragraph (i) of the proposed
AD would accomplish the intent of the Canadian airworthiness directive:
``After accomplishing the applicable initial tasks, the AFM revisions
required by paragraph (g) of this AD and allowed by paragraph (h) of
this AD may be removed from the AFM.'' We have coordinated this
difference with TCCA.
Clarification of Compliance Times Specified in Service Information
Canadair Regional Jet TR 2B-2068 recommends accomplishing the
applicable initial tasks no later than the applicable compliance time
``from November 5, 2004.'' This proposed AD would require accomplishing
the task within the applicable compliance time ``after the effective
date of this AD.''
[[Page 36069]]
Change to Existing AD
This proposed AD would retain all requirements of AD 2002-19-07.
Since AD 2002-19-07 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 proposed AD, as listed in
the following table:
Revised Paragraph Identifiers
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Corresponding requirement
Requirement in AD 2002-19-07 in this proposed AD
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Paragraph (a)............................. Paragraph (f).
Paragraph (b)............................. Paragraph (g).
Paragraph (c)............................. Paragraph (h).
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Costs of Compliance
The following table provides the estimated costs for U.S. operators
to comply with this proposed AD.
Estimated Costs
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Number of U.S.-
Action Work hours Average labor Parts Cost per registered Fleet cost
rate per hour airplane airplanes
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AFM revisions (required by AD 2002-19-07) 1 $65 None......................... $65 727 $47,255
AWL revision (new proposed action)....... 1 65 None......................... 65 727 47,255
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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 proposed AD. 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 FAA amends Sec. 39.13 by removing amendment 39-12887 (67 FR
60117, September 25, 2002) and adding the following new airworthiness
directive (AD):
Bombardier, Inc. (Formerly Canadair): Docket No. FAA-2005-21599;
Directorate Identifier 2005-NM-036-AD.
Comments Due Date
(a) The Federal Aviation Administration must receive comments on
this AD action by July 22, 2005.
Affected ADs
(b) This AD supersedes AD 2002-19-07, amendment 39-12887 (67 FR
60117, September 25, 2002).
Applicability
(c) This AD applies to all Bombardier Model CL-600-2B19
(Regional Jet series 100 & 440) airplanes, certificated in any
category.
Note 1: This AD requires revisions to certain operator
maintenance documents to include new inspections. Compliance with
these inspections is required by 14 CFR 91.403(c). For airplanes
that have been previously modified, altered, or repaired in the
areas addressed by these inspections, the operator may not be able
to accomplish the inspections described in the revisions. In this
situation, to comply with 14 CFR 91.403(c), the operator must
request approval for an alternative method of compliance according
to paragraph (m) of this AD. The request should include a
description of changes to the required inspections that will ensure
the continued damage tolerance of the affected structure. The FAA
has provided guidance for this determination in Advisory Circular
(AC) 25-1529.
Unsafe Condition
(d) This AD was prompted by the development of terminating
actions for the Airplane Flight Manual (AFM) revisions. We are
issuing this AD to prevent aileron control stiffness during flight,
which could result in the reduction or possible loss of
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.
Requirements of AD 2002-19-07
AFM Revisions
(f) Within 14 days after October 10, 2002 (the effective date of
AD 2002-19-07), insert the procedures for aileron system jams
specified in Canadair Regional Jet Temporary Revision (TR) RJ/109-2,
dated August 9, 2002, into the Emergency Procedures and Abnormal
Procedures Sections, as applicable, of the FAA-approved Canadair
Regional Jet AFM.
(g) Upon the accumulation of 5,000 total flight hours, or within
14 days after October 10, 2002, whichever occurs later, insert the
procedures for the aileron control check specified in Canadair
Regional Jet TR RJ/109-2, dated August 9, 2002, into the Limitations
[[Page 36070]]
and Normal Procedures Sections, as applicable, of the Canadair
Regional Jet AFM.
Note 2: The Limitations and Normal Procedures specified by
paragraph (g) of this AD are required to be implemented only when an
airplane has accumulated 5,000 total flight hours. However,
individual pilots may operate other airplanes that have not yet
accumulated 5,000 total flight hours, and that are not subject to
those limitations and procedures. Therefore, to avoid any confusion
or misunderstanding, it is important that airlines have
communication mechanisms in place to ensure that pilots are aware,
for each flight, whether the Limitations and Normal Procedures
apply.
(h) When the information in Canadair Regional Jet TR RJ/109-2,
dated August 9, 2002, of the Canadair Regional Jet AFM, has been
incorporated into the FAA-approved general revisions of the AFM, the
TR may be removed from the AFM.
New Actions Required by This AD
Revision of Airworthiness Limitations (AWL) Section
(i) Within 60 days after the effective date of this AD, revise
the AWL section of the Instructions of Continued Airworthiness by
incorporating the tasks specified in Table 1 of this AD and the
corresponding ``Task Threshold/Interval'' of Canadair Regional Jet
TR 2B-2068, dated December 13, 2004, into Appendix B--Airworthiness
Limitations of Part 2 of Canadair Regional Jet Model CL-600-2B19
Maintenance Requirements Manual. Thereafter, except as provided in
paragraph (m) of this AD, no alternative lubrication/replacement
intervals may be approved for the aileron control system. After
accomplishing the applicable initial tasks, the AFM revisions for
the aileron control check required by paragraph (g) of this AD and
allowed by paragraph (h) of this AD may be removed from the AFM.
Table 1.--Affected Task Numbers
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Task No. Description
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(1) R22-11-A083-01............................................................ Lubrication of aileron autopilot
servo and servo mount engage
clutch faces.
(2) R27-00-A053-01............................................................ Replacement of aileron control
pulleys with new or serviceable
parts.
(3) R27-11-A082-01............................................................ Lubrication of the aileron
control cables at the wing
pulley interfaces.
(4) R27-11-A082-02............................................................ Lubrication of the aileron rear
quadrant and trim lever
bearings.
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(j) For airplanes that have exceeded the task threshold for the
new tasks specified in paragraph (i) of this AD as of the effective
date of this AD: Do the initial tasks at the applicable ``Phase-In''
time specified in Canadair Regional Jet TR 2B-2068, dated December
13, 2004; except where the TR specifies accomplishing the task no
later than the applicable compliance time ``from November 5, 2004,''
this AD requires accomplishing the task within the applicable
compliance time ``after the effective date of this AD.''
(k) When the information in Canadair Regional Jet TR 2B-2068,
dated December 13, 2004, is included in the general revisions of the
Maintenance Requirements Manual, this TR may be removed.
Flight Crew Briefing
(l) After accomplishing the applicable initial tasks required by
paragraph (i) of this AD, brief flight crews that there is no longer
a requirement to perform aileron control checks following takeoff
from a wet or contaminated runway.
Alternative Methods of Compliance (AMOCs)
(m) The Manager, New York Aircraft Certification Office (ACO),
FAA, has the authority to approve AMOCs for this AD, if requested in
accordance with the procedures found in 14 CFR 39.19.
Related Information
(n) Canadian airworthiness directive CF-2002-35R2, issued
January 6, 2005, also addresses the subject of this AD.
Issued in Renton, Washington, on June 15, 2005.
Kevin Mullin,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-12298 Filed 6-21-05; 8:45 am]
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