Airworthiness Directives; Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) Airplanes, Model CL-600-2D15 (Regional Jet Series 705) Airplanes, and Model CL-600-2D24 (Regional Jet Series 900) Airplanes, 25791-25794 [2010-10887]
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25791
Federal Register / Vol. 75, No. 89 / Monday, May 10, 2010 / Proposed Rules
(6) Actions accomplished in accordance
with the service information specified in
Table 2 of this AD, before the effective date
of this AD, are acceptable for compliance
with the corresponding actions required by
paragraphs (g)(4) and (g)(5) of this AD.
TABLE 2—ACCEPTABLE SERVICE INFORMATION
Bombardier Service Bulletin—
Revision—
Dated—
601R-30–031
601R-30–031
601R-30–031
601R-30–031
Original ..................
A ............................
B ............................
C ............................
May 15, 2009.
September 8, 2009.
October 28, 2009.
December 23, 2009.
.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................
(7) Replacing DCUs P/N 622–9820–007,
622–9820–008, or 622–9820–009 with
modified DCUs having P/N 622–9820–010,
and modifying CSUs, are also acceptable for
compliance with the requirements of
paragraph (g)(3) of this AD if done before the
effective date of this AD, in accordance with
Accomplishment Instructions of Bombardier
Service Bulletin 601R–30–034, dated
November 19, 2007.
FAA AD Differences
Note 5: This AD differs from the MCAI
and/or service information as follows: No
differences.
Other FAA AD Provisions
(h) The following provisions also apply to
this AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, New York Aircraft
Certification Office (ACO), ANE–170, FAA,
has the authority to approve AMOCs for this
AD, if requested using the procedures found
in 14 CFR 39.19. Send information to Attn:
Program Manager, Continuing Operational
Safety, FAA, New York ACO, 1600 Stewart
Avenue, Suite 410, Westbury, New York,
11590; telephone 516–228–7300; fax 516–
794–5531. Before using any approved AMOC
on any airplane to which the AMOC applies,
notify your principal maintenance inspector
(PMI) or principal avionics inspector (PAI),
as appropriate, or lacking a principal
inspector, your local Flight Standards District
Office. The AMOC approval letter must
specifically reference this AD.
(2) Airworthy Product: For any requirement
in this AD to obtain corrective actions from
a manufacturer or other source, use these
actions if they are FAA-approved. Corrective
actions are considered FAA-approved if they
are approved by the State of Design Authority
(or their delegated agent). You are required
to assure the product is airworthy before it
is returned to service.
(3) Reporting Requirements: For any
reporting requirement in this AD, under the
provisions of the Paperwork Reduction Act
(44 U.S.C. 3501 et seq.), the Office of
Management and Budget (OMB) has
approved the information collection
requirements and has assigned OMB Control
Number 2120–0056.
Related Information
(i) Refer to MCAI Transport Canada Civil
Aviation (TCCA) Airworthiness Directive
CF–2009–37, dated September 30, 2009; and
the service information specified in Table 3
of this AD; for related information.
TABLE 3—SERVICE INFORMATION
Service information
Revision
Bombardier Service Bulletin 601R–30–031 ........................................................................................
Bombardier Service Bulletin 601R–31–034 ........................................................................................
Bombardier Temporary Revision 2A–46 to Appendix A—Certification Maintenance Requirements
of Part 2 of the Bombardier CL-600–2B19 Maintenance Requirements Manual.
Canadair (Bombardier) Temporary Revision RJ/164–2 to the Canadair Regional Jet Airplane
Flight Manual CSP A–012.
D ............................
A ............................
Original ..................
February 3, 2010.
April 10, 2008.
July 24, 2009.
Original ..................
May 14, 2009.
Issued in Renton, Washington, on April 28,
2010.
Jeffrey E. Duven,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
DEPARTMENT OF TRANSPORTATION
[FR Doc. 2010–10884 Filed 5–7–10; 8:45 am]
[Docket No. FAA–2010–0438; Directorate
Identifier 2009–NM–265–AD]
BILLING CODE 4910–13–P
Federal Aviation Administration
14 CFR Part 39
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RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc. Model CL–600–2C10 (Regional Jet
Series 700, 701, & 702) Airplanes,
Model CL–600–2D15 (Regional Jet
Series 705) Airplanes, and Model CL–
600–2D24 (Regional Jet Series 900)
Airplanes
AGENCY: Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
We propose to adopt a new
airworthiness directive (AD) for the
products listed above that would
SUMMARY:
VerDate Mar<15>2010
16:19 May 07, 2010
Jkt 220001
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Fmt 4702
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Date
supersede an existing AD. This
proposed AD results from mandatory
continuing airworthiness information
(MCAI) originated by an aviation
authority of another country to identify
and correct an unsafe condition on an
aviation product. The MCAI describes
the unsafe condition as:
The heating capability of several [angle of
attack] AOA transducer heating elements
removed from in-service aircraft has been
found to be below the minimum requirement.
Also, it was discovered that a large number
of AOA transducers repaired in an approved
maintenance facility were not calibrated
accurately.
Inaccurate calibration of the AOA
transducer and/or degraded AOA transducer
heating elements can result in early or late
activation of the stall warning, stick shaker
and stick pusher by the Stall Protection
Computer (SPC).
Inaccurate calibration of the AOA
transducers and/or degraded AOA
transducer heating elements could
result in an ineffective response to an
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Federal Register / Vol. 75, No. 89 / Monday, May 10, 2010 / Proposed Rules
aerodynamic stall and reduced
controllability of the airplane. The
proposed AD would require actions that
are intended to address the unsafe
condition described in the MCAI.
DATES: We must receive comments on
this proposed AD by June 24, 2010.
ADDRESSES: You may send comments by
any of the following methods:
• Federal eRulemaking Portal: Go to
https://www.regulations.gov. Follow the
instructions for submitting comments.
• Fax: (202) 493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations,
M–30, West Building Ground Floor,
Room W12–140, 1200 New Jersey
Avenue, SE., Washington, DC 20590.
• Hand Delivery: U.S. Department of
Transportation, Docket Operations,
M–30, West Building Ground Floor,
Room W12–40, 1200 New Jersey
Avenue, SE., 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,
ˆ
Inc., 400 Cote-Vertu Road West, Dorval,
´
Quebec H4S 1Y9, Canada; telephone
514–855–5000; fax 514–855–7401;
e-mail thd.crj@aero.bombardier.com;
Internet https://www.bombardier.com.
You may review copies of the
referenced service information at the
FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW., Renton,
Washington. For information on the
availability of this material at the FAA,
call 425–227–1221.
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Examining the AD Docket
You may examine the AD docket on
the Internet at https://
www.regulations.gov; or in person at the
Docket Operations office between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket
contains this proposed AD, the
regulatory evaluation, any comments
received, and other information. The
street address for the Docket Operations
office (telephone (800) 647–5527) is in
the ADDRESSES section. Comments will
be available in the AD docket shortly
after receipt.
FOR FURTHER INFORMATION CONTACT:
Wing Chan, Aerospace Engineer,
Avionics and Flight Test Branch,
ANE–172, FAA, New York Aircraft
Certification Office, 1600 Stewart
Avenue, Suite 410, Westbury, New York
11590; telephone (516) 228–7311; fax
(516) 794–5531.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written
relevant data, views, or arguments about
VerDate Mar<15>2010
16:19 May 07, 2010
Jkt 220001
this proposed AD. Send your comments
to an address listed under the
ADDRESSES section. Include ‘‘Docket No.
FAA–2010–0438; Directorate Identifier
2009–NM–265–AD’’ at the beginning of
your comments. We specifically invite
comments on the overall regulatory,
economic, environmental, and energy
aspects of this proposed AD. We will
consider all comments received by the
closing date and may amend this
proposed AD based on those comments.
We have lengthened the 30-day
comment period for proposed ADs that
address MCAI originated by aviation
authorities of other countries to provide
adequate time for interested parties to
submit comments. The comment period
for these proposed ADs is now typically
45 days, which is consistent with the
comment period for domestic transport
ADs.
We will post all comments we
receive, without change, to https://
www.regulations.gov, including any
personal information you provide. We
will also post a report summarizing each
substantive verbal contact we receive
about this proposed AD.
Discussion
On October 16, 2009, we issued AD
2009–22–12, Amendment 39–16065 (74
FR 55767, October 29, 2009). That AD
required actions intended to address an
unsafe condition on the products listed
above.
When we issued AD 2009–22–12, we
stated that we did not include certain
actions (the inspection to determine if
certain transducers are installed and
replaced if necessary in paragraph (h) of
this proposed AD) because the planned
compliance time was not enough to give
notice as AD 2009–22–12 was issued as
an immediately adopted rule. We now
have determined that further
rulemaking is indeed necessary, and
this proposed AD follows from that
determination.
Relevant Service Information
Bombardier Inc. has issued Service
Bulletin 670BA–27–053, Revision A,
dated July 7, 2009. The actions
described in this service information are
intended to correct the unsafe condition
identified in the MCAI.
FAA’s Determination and Requirements
of This Proposed AD
This product has been approved by
the aviation authority of another
country, and is approved for operation
in the United States. Pursuant to our
bilateral agreement with the State of
Design Authority, we have been notified
of the unsafe condition described in the
MCAI and service information
PO 00000
Frm 00008
Fmt 4702
Sfmt 4702
referenced above. We are proposing this
AD because we evaluated all pertinent
information and determined an unsafe
condition exists and is likely to exist or
develop on other products of the same
type design.
Differences Between This AD and the
MCAI or Service Information
We have reviewed the MCAI and
related service information and, in
general, agree with their substance. But
we might have found it necessary to use
different words from those in the MCAI
to ensure the AD is clear for U.S.
operators and is enforceable. In making
these changes, we do not intend to differ
substantively from the information
provided in the MCAI and related
service information.
We might also have proposed
different actions in this AD from those
in the MCAI in order to follow FAA
policies. Any such differences are
highlighted in a NOTE within the
proposed AD.
Costs of Compliance
Based on the service information, we
estimate that this proposed AD would
affect about 368 products of U.S.
registry.
The actions that are required by AD
2009–22–12 and retained in this
proposed AD take about 1 work-hour
per product, at an average labor rate of
$85 per work hour. Based on these
figures, the estimated cost of the
currently required actions is $85 per
product.
We estimate that it would take about
5 work-hours per product to comply
with the new basic requirements of this
proposed AD. The average labor rate is
$85 per work-hour. Required parts
would cost about $0 per product. Where
the service information lists required
parts costs that are covered under
warranty, we have assumed that there
will be no charge for these costs. As we
do not control warranty coverage for
affected parties, some parties may incur
costs higher than estimated here. Based
on these figures, we estimate the cost of
the proposed AD on U.S. operators to be
$156,400, or $425 per product.
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:
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Federal Register / Vol. 75, No. 89 / Monday, May 10, 2010 / Proposed Rules
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 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 this 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 and placed it in the
AD docket.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
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.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by
removing Amendment 39–16065 (74 FR
55767, October 29, 2009) and adding the
following new AD:
Bombardier, Inc.: Docket No. FAA–2010–
0438; Directorate Identifier 2009–NM–
265–AD.
Comments Due Date
(a) We must receive comments by June 24,
2010.
Affected ADs
(b) This AD supersedes AD 2009–22–12,
Amendment 39–16065.
Applicability
(c) This AD applies to Bombardier, Inc.
Model CL–600–2C10 (Regional Jet Series 700,
701, & 702) airplanes, Model CL–600–2D15
(Regional Jet Series 705) airplanes, and
Model CL–600–2D24 (Regional Jet Series
900) airplanes; certificated in any category,
that are equipped with Thales angle of attack
(AOA) transducers having part number (P/N)
C16258AA.
25793
Subject
(d) Air Transport Association (ATA) of
America Code 27: Flight Controls.
Reason
(e) The mandatory continuing
airworthiness information (MCAI) states:
The heating capability of several [angle of
attack] AOA transducer heating elements
removed from in-service aircraft has been
found to be below the minimum requirement.
Also, it was discovered that a large number
of AOA transducers repaired in an approved
maintenance facility were not calibrated
accurately.
Inaccurate calibration of the AOA
transducer and/or degraded AOA transducer
heating elements can result in early or late
activation of the stall warning, stick shaker
and stick pusher by the Stall Protection
Computer (SPC).
This [Canadian] directive mandates a
periodic inspection of the inrush current to
verify the AOA heating capability and
replacement of the inaccurately calibrated
AOA transducers.
Inaccurate calibration of the AOA
transducers and/or degraded AOA transducer
heating elements could result in an
ineffective response to an aerodynamic stall
and reduced controllability of the airplane.
Compliance
(f) 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 Requirements of AD 2009–
22–12:
(g) Do the following actions.
(1) Within the applicable compliance times
specified in Table 1 of this AD: Measure the
inrush current of both AOA transducers, in
accordance with Part A of the
Accomplishment Instructions of Bombardier
Service Bulletin 670BA–27–051, dated May
14, 2009.
TABLE 1—INITIAL MEASUREMENT
For any AOA transducer that, as of November 13, 2009 (the effective
date of AD 2009–22–12), has accumulated—
Do the initial inrush current measurement—
Less than 6,500 total flight hours .............................................................
More than or equal to 6,500 total flight hours but less than 7,500 total
flight hours.
Before the AOA transducer has accumulated 7,500 total flight hours.
Within 500 flight hours after November 13, 2009 (the effective date of
AD 2009-22–12), but before the AOA transducer has accumulated
8,000 total flight hours.
Within 250 flight hours after November 13, 2009.
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More than or equal to 7,500 total flight hours ..........................................
(2) If, during any measurement required by
paragraph (g)(1) of this AD, an AOA
transducer is found to have an inrush current
less than 1.60 amps (‘‘degraded’’ transducer),
before further flight replace the transducer
with a new or serviceable transducer, in
accordance with Part C of the
Accomplishment Instructions of Bombardier
Service Bulletin 670BA–27–051, dated May
14, 2009. Do the measurement specified in
VerDate Mar<15>2010
16:19 May 07, 2010
Jkt 220001
paragraph (g)(1) of this AD for that
replacement transducer at the times specified
in (g)(2)(i) or (g)(2)(ii) of this AD.
(i) At the applicable time specified in Table
2 of this AD if the degraded transducer was
replaced with a serviceable transducer that is
not new; or
(ii) Within 2,000 flight hours after
replacement if the degraded transducer was
replaced with a new one.
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Fmt 4702
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(3) If, during any measurement required by
paragraph (g)(1) of this AD, an AOA
transducer is found to have an inrush current
more than or equal to 1.60 amps, repeat the
measurement specified in paragraph (g)(1) of
this AD thereafter at intervals not to exceed
the applicable interval specified in Table 2 of
this AD.
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25794
Federal Register / Vol. 75, No. 89 / Monday, May 10, 2010 / Proposed Rules
TABLE 2—REPETITIVE MEASUREMENT INTERVALS
If the last inrush current measurement of the serviceable AOA transducer is—
Then repeat the measurement—
More
More
More
More
Within
Within
Within
Within
than
than
than
than
or
or
or
or
equal
equal
equal
equal
to
to
to
to
1.90
1.80
1.70
1.60
amps
amps
amps
amps
.............................................................
but less than 1.90 amps ....................
but less than 1.80 amps ....................
but less than 1.70 amps ....................
New Requirements of This AD
(h) Within 6,000 flight hours after the
effective date of this AD: Do an inspection to
determine the serial number of the AOA
transducer having P/N C16258AA, and to
determine if the serial number has suffix ‘‘A,’’
in accordance with the Accomplishment
Instructions of Bombardier Service Bulletin
670BA–27–053, Revision A, dated July 7,
2009.
(1) If the serial number is not specified in
paragraph 1.A.(1) of Bombardier Service
Bulletin 670BA–27–053, Revision A, dated
July 7, 2009, no further action is required by
this paragraph.
(2) If the serial number is specified in
paragraph 1.A.(1) of Bombardier Service
Bulletin 670BA–27–053, Revision A, dated
July 7, 2009, and the serial number has a
suffix ‘‘A,’’ no further action is required by
this paragraph.
(3) If the serial number is specified in
paragraph 1.A.(1) of Bombardier Service
Bulletin 670BA–27–053, Revision A, dated
July 7, 2009, and the serial number does not
have suffix ‘‘A,’’ before further flight, replace
the AOA transducer with a serviceable
transducer, in accordance with the
Accomplishment Instructions of Bombardier
Service Bulletin 670BA–27–053, Revision A,
dated July 7, 2009.
(i) As of the effective date of this AD, no
person may install, on any airplane, an AOA
transducer having P/N C16258AA with any
serial number specified in paragraph 1.A.(1)
of Bombardier Service Bulletin 670BA–27–
053, Revision A, dated July 7, 2009, unless
the serial number has a suffix ‘‘A.’’
(j) Inspections and replacements
accomplished before the effective date of this
AD according to Bombardier Service Bulletin
670BA–27–051, dated May 14, 2009, are
considered acceptable for compliance with
the corresponding actions specified in this
AD.
2,000 flight hours after the last measurement.
1,500 flight hours after the last measurement.
1,000 flight hours after the last measurement.
500 flight hours after the last measurement.
794–5531. Before using any approved AMOC
on any airplane to which the AMOC applies,
notify your principal maintenance inspector
(PMI) or principal avionics inspector (PAI),
as appropriate, or lacking a principal
inspector, your local Flight Standards District
Office. The AMOC approval letter must
specifically reference this AD.
(2) Airworthy Product: For any requirement
in this AD to obtain corrective actions from
a manufacturer or other source, use these
actions if they are FAA-approved. Corrective
actions are considered FAA-approved if they
are approved by the State of Design Authority
(or their delegated agent). You are required
to assure the product is airworthy before it
is returned to service.
(3) Reporting Requirements: For any
reporting requirement in this AD, under the
provisions of the Paperwork Reduction Act
(44 U.S.C. 3501 et seq.), the Office of
Management and Budget (OMB) has
approved the information collection
requirements and has assigned OMB Control
Number 2120–0056.
Related Information
(l) Refer to MCAI Canadian Airworthiness
Directive CF–2009–35, dated August 31,
2009; Bombardier Service Bulletin 670BA–
27–051, dated May 14, 2009; and Bombardier
Service Bulletin 670BA–27–053, Revision A,
dated July 7, 2009; for related information.
Issued in Renton, Washington, on April 29,
2010.
Jeffrey E. Duven,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2010–10887 Filed 5–7–10; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF HOMELAND
SECURITY
FAA AD Differences
Coast Guard
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Note 1: This AD differs from the MCAI
and/or service information as follows: No
differences.
33 CFR Part 165
Other FAA AD Provisions
(k) The following provisions also apply to
this AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, New York Aircraft
Certification Office (ACO), ANE–170, FAA,
has the authority to approve AMOCs for this
AD, if requested using the procedures found
in 14 CFR 39.19. Send information to Attn:
Program Manager, Continuing Operational
Safety, FAA, New York ACO, 1600 Stewart
Avenue, Suite 410, Westbury, New York,
11590; telephone 516–228–7300; fax 516–
VerDate Mar<15>2010
16:19 May 07, 2010
Jkt 220001
[Docket No. USCG–2010–0092]
RIN 1625–AA08
Regulated Navigation Area: Red Bull
Air Race World Championship, Upper
New York Bay, Lower Hudson River,
NJ and NY
Coast Guard, DHS.
Notice of proposed rulemaking.
AGENCY:
ACTION:
SUMMARY: The Coast Guard proposes to
establish a temporary regulated
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Fmt 4702
Sfmt 4702
navigation area on the navigable waters
of the lower Hudson River and Upper
New York Bay in the vicinity of Liberty
State Park, New Jersey and Ellis Island,
New Jersey and New York for the Red
Bull Air Race World Championship, an
event scheduled to be held over water.
This regulation is necessary to protect
participants and spectators from the
hazards associated with air races. This
proposed action is intended to restrict
vessel traffic in a portion of the lower
Hudson River and Upper New York Bay
during the event.
DATES: Comments and related material
must be received by the Coast Guard on
or before June 9, 2010.
Requests for public meetings must be
received by the Coast Guard on or before
June 9, 2010.
ADDRESSES: You may submit comments
identified by docket number USCG–
2010–0092 using any one of the
following methods:
• Federal eRulemaking Portal: https://
www.regulations.gov.
• Fax: 202–493–2251.
• Mail: Docket Management Facility
(M–30), U.S. Department of
Transportation, West Building Ground
Floor, Room W12–140, 1200 New Jersey
Avenue, SE., Washington, DC 20590–
0001.
• Hand delivery: Same as mail
address above, between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays. The telephone number
is 202–366–9329.
To avoid duplication, please use only
one of these four methods. See the
‘‘Public Participation and Request for
Comments’’ portion of the
SUPPLEMENTARY INFORMATION section
below for instructions on submitting
comments.
FOR FURTHER INFORMATION CONTACT: If
you have questions on this proposed
rule, call or e-mail LTJG Eunice James,
Coast Guard Sector New York
Waterways Management Division,
Marine Events Branch; telephone 718–
354–4163, e-mail
Eunice.A.James@uscg.mil. If you have
questions on viewing or submitting
material to the docket, call Renee V.
Wright, Program Manager, Docket
Operations, telephone 202–366–9826.
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10MYP1
]]>Agencies
[Federal Register Volume 75, Number 89 (Monday, May 10, 2010)]
[Proposed Rules]
[Pages 25791-25794]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2010-10887]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2010-0438; Directorate Identifier 2009-NM-265-AD]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc. Model CL-600-2C10
(Regional Jet Series 700, 701, & 702) Airplanes, Model CL-600-2D15
(Regional Jet Series 705) Airplanes, and Model CL-600-2D24 (Regional
Jet Series 900) Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: We propose to adopt a new airworthiness directive (AD) for the
products listed above that would supersede an existing AD. This
proposed AD results from mandatory continuing airworthiness information
(MCAI) originated by an aviation authority of another country to
identify and correct an unsafe condition on an aviation product. The
MCAI describes the unsafe condition as:
The heating capability of several [angle of attack] AOA
transducer heating elements removed from in-service aircraft has
been found to be below the minimum requirement. Also, it was
discovered that a large number of AOA transducers repaired in an
approved maintenance facility were not calibrated accurately.
Inaccurate calibration of the AOA transducer and/or degraded AOA
transducer heating elements can result in early or late activation
of the stall warning, stick shaker and stick pusher by the Stall
Protection Computer (SPC).
Inaccurate calibration of the AOA transducers and/or degraded AOA
transducer heating elements could result in an ineffective response to
an
[[Page 25792]]
aerodynamic stall and reduced controllability of the airplane. The
proposed AD would require actions that are intended to address the
unsafe condition described in the MCAI.
DATES: We must receive comments on this proposed AD by June 24, 2010.
ADDRESSES: You may send comments by any of the following methods:
Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments.
Fax: (202) 493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue, SE., Washington, DC 20590.
Hand Delivery: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-40, 1200 New
Jersey Avenue, SE., 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., 400 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec
H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-7401; e-mail
thd.crj@aero.bombardier.com; Internet https://www.bombardier.com. You
may review copies of the referenced service information at the FAA,
Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton,
Washington. For information on the availability of this material at the
FAA, call 425-227-1221.
Examining the AD Docket
You may examine the AD docket on the Internet at https://www.regulations.gov; or in person at the Docket Operations office
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains this proposed AD, the regulatory
evaluation, any comments received, and other information. The street
address for the Docket Operations office (telephone (800) 647-5527) is
in the ADDRESSES section. Comments will be available in the AD docket
shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Wing Chan, Aerospace Engineer,
Avionics and Flight Test Branch, ANE-172, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New
York 11590; telephone (516) 228-7311; fax (516) 794-5531.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written relevant data, views, or
arguments about this proposed AD. Send your comments to an address
listed under the ADDRESSES section. Include ``Docket No. FAA-2010-0438;
Directorate Identifier 2009-NM-265-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this proposed AD. We
will consider all comments received by the closing date and may amend
this proposed AD based on those comments.
We have lengthened the 30-day comment period for proposed ADs that
address MCAI originated by aviation authorities of other countries to
provide adequate time for interested parties to submit comments. The
comment period for these proposed ADs is now typically 45 days, which
is consistent with the comment period for domestic transport ADs.
We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this proposed AD.
Discussion
On October 16, 2009, we issued AD 2009-22-12, Amendment 39-16065
(74 FR 55767, October 29, 2009). That AD required actions intended to
address an unsafe condition on the products listed above.
When we issued AD 2009-22-12, we stated that we did not include
certain actions (the inspection to determine if certain transducers are
installed and replaced if necessary in paragraph (h) of this proposed
AD) because the planned compliance time was not enough to give notice
as AD 2009-22-12 was issued as an immediately adopted rule. We now have
determined that further rulemaking is indeed necessary, and this
proposed AD follows from that determination.
Relevant Service Information
Bombardier Inc. has issued Service Bulletin 670BA-27-053, Revision
A, dated July 7, 2009. The actions described in this service
information are intended to correct the unsafe condition identified in
the MCAI.
FAA's Determination and Requirements of This Proposed AD
This product has been approved by the aviation authority of another
country, and is approved for operation in the United States. Pursuant
to our bilateral agreement with the State of Design Authority, we have
been notified of the unsafe condition described in the MCAI and service
information referenced above. We are proposing this AD because we
evaluated all pertinent information and determined an unsafe condition
exists and is likely to exist or develop on other products of the same
type design.
Differences Between This AD and the MCAI or Service Information
We have reviewed the MCAI and related service information and, in
general, agree with their substance. But we might have found it
necessary to use different words from those in the MCAI to ensure the
AD is clear for U.S. operators and is enforceable. In making these
changes, we do not intend to differ substantively from the information
provided in the MCAI and related service information.
We might also have proposed different actions in this AD from those
in the MCAI in order to follow FAA policies. Any such differences are
highlighted in a NOTE within the proposed AD.
Costs of Compliance
Based on the service information, we estimate that this proposed AD
would affect about 368 products of U.S. registry.
The actions that are required by AD 2009-22-12 and retained in this
proposed AD take about 1 work-hour per product, at an average labor
rate of $85 per work hour. Based on these figures, the estimated cost
of the currently required actions is $85 per product.
We estimate that it would take about 5 work-hours per product to
comply with the new basic requirements of this proposed AD. The average
labor rate is $85 per work-hour. Required parts would cost about $0 per
product. Where the service information lists required parts costs that
are covered under warranty, we have assumed that there will be no
charge for these costs. As we do not control warranty coverage for
affected parties, some parties may incur costs higher than estimated
here. Based on these figures, we estimate the cost of the proposed AD
on U.S. operators to be $156,400, or $425 per product.
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:
[[Page 25793]]
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 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 this 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 and placed it in the AD docket.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, 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 39-16065 (74 FR
55767, October 29, 2009) and adding the following new AD:
Bombardier, Inc.: Docket No. FAA-2010-0438; Directorate Identifier
2009-NM-265-AD.
Comments Due Date
(a) We must receive comments by June 24, 2010.
Affected ADs
(b) This AD supersedes AD 2009-22-12, Amendment 39-16065.
Applicability
(c) This AD applies to Bombardier, Inc. Model CL-600-2C10
(Regional Jet Series 700, 701, & 702) airplanes, Model CL-600-2D15
(Regional Jet Series 705) airplanes, and Model CL-600-2D24 (Regional
Jet Series 900) airplanes; certificated in any category, that are
equipped with Thales angle of attack (AOA) transducers having part
number (P/N) C16258AA.
Subject
(d) Air Transport Association (ATA) of America Code 27: Flight
Controls.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
The heating capability of several [angle of attack] AOA
transducer heating elements removed from in-service aircraft has
been found to be below the minimum requirement. Also, it was
discovered that a large number of AOA transducers repaired in an
approved maintenance facility were not calibrated accurately.
Inaccurate calibration of the AOA transducer and/or degraded AOA
transducer heating elements can result in early or late activation
of the stall warning, stick shaker and stick pusher by the Stall
Protection Computer (SPC).
This [Canadian] directive mandates a periodic inspection of the
inrush current to verify the AOA heating capability and replacement
of the inaccurately calibrated AOA transducers.
Inaccurate calibration of the AOA transducers and/or degraded AOA
transducer heating elements could result in an ineffective response
to an aerodynamic stall and reduced controllability of the airplane.
Compliance
(f) 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 Requirements of AD 2009-22-12:
(g) Do the following actions.
(1) Within the applicable compliance times specified in Table 1
of this AD: Measure the inrush current of both AOA transducers, in
accordance with Part A of the Accomplishment Instructions of
Bombardier Service Bulletin 670BA-27-051, dated May 14, 2009.
Table 1--Initial Measurement
------------------------------------------------------------------------
For any AOA transducer that, as of
November 13, 2009 (the effective date Do the initial inrush current
of AD 2009-22-12), has accumulated-- measurement--
------------------------------------------------------------------------
Less than 6,500 total flight hours..... Before the AOA transducer has
accumulated 7,500 total flight
hours.
More than or equal to 6,500 total Within 500 flight hours after
flight hours but less than 7,500 total November 13, 2009 (the
flight hours. effective date of AD
2009[dash]22-12), but before
the AOA transducer has
accumulated 8,000 total flight
hours.
More than or equal to 7,500 total Within 250 flight hours after
flight hours. November 13, 2009.
------------------------------------------------------------------------
(2) If, during any measurement required by paragraph (g)(1) of
this AD, an AOA transducer is found to have an inrush current less
than 1.60 amps (``degraded'' transducer), before further flight
replace the transducer with a new or serviceable transducer, in
accordance with Part C of the Accomplishment Instructions of
Bombardier Service Bulletin 670BA-27-051, dated May 14, 2009. Do the
measurement specified in paragraph (g)(1) of this AD for that
replacement transducer at the times specified in (g)(2)(i) or
(g)(2)(ii) of this AD.
(i) At the applicable time specified in Table 2 of this AD if
the degraded transducer was replaced with a serviceable transducer
that is not new; or
(ii) Within 2,000 flight hours after replacement if the degraded
transducer was replaced with a new one.
(3) If, during any measurement required by paragraph (g)(1) of
this AD, an AOA transducer is found to have an inrush current more
than or equal to 1.60 amps, repeat the measurement specified in
paragraph (g)(1) of this AD thereafter at intervals not to exceed
the applicable interval specified in Table 2 of this AD.
[[Page 25794]]
Table 2--Repetitive Measurement Intervals
------------------------------------------------------------------------
If the last inrush current measurement
of the serviceable AOA transducer is-- Then repeat the measurement--
------------------------------------------------------------------------
More than or equal to 1.90 amps........ Within 2,000 flight hours after
the last measurement.
More than or equal to 1.80 amps but Within 1,500 flight hours after
less than 1.90 amps. the last measurement.
More than or equal to 1.70 amps but Within 1,000 flight hours after
less than 1.80 amps. the last measurement.
More than or equal to 1.60 amps but Within 500 flight hours after
less than 1.70 amps. the last measurement.
------------------------------------------------------------------------
New Requirements of This AD
(h) Within 6,000 flight hours after the effective date of this
AD: Do an inspection to determine the serial number of the AOA
transducer having P/N C16258AA, and to determine if the serial
number has suffix ``A,'' in accordance with the Accomplishment
Instructions of Bombardier Service Bulletin 670BA-27-053, Revision
A, dated July 7, 2009.
(1) If the serial number is not specified in paragraph 1.A.(1)
of Bombardier Service Bulletin 670BA-27-053, Revision A, dated July
7, 2009, no further action is required by this paragraph.
(2) If the serial number is specified in paragraph 1.A.(1) of
Bombardier Service Bulletin 670BA-27-053, Revision A, dated July 7,
2009, and the serial number has a suffix ``A,'' no further action is
required by this paragraph.
(3) If the serial number is specified in paragraph 1.A.(1) of
Bombardier Service Bulletin 670BA-27-053, Revision A, dated July 7,
2009, and the serial number does not have suffix ``A,'' before
further flight, replace the AOA transducer with a serviceable
transducer, in accordance with the Accomplishment Instructions of
Bombardier Service Bulletin 670BA-27-053, Revision A, dated July 7,
2009.
(i) As of the effective date of this AD, no person may install,
on any airplane, an AOA transducer having P/N C16258AA with any
serial number specified in paragraph 1.A.(1) of Bombardier Service
Bulletin 670BA-27-053, Revision A, dated July 7, 2009, unless the
serial number has a suffix ``A.''
(j) Inspections and replacements accomplished before the
effective date of this AD according to Bombardier Service Bulletin
670BA-27-051, dated May 14, 2009, are considered acceptable for
compliance with the corresponding actions specified in this AD.
FAA AD Differences
Note 1: This AD differs from the MCAI and/or service information
as follows: No differences.
Other FAA AD Provisions
(k) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, New
York Aircraft Certification Office (ACO), ANE-170, FAA, has the
authority to approve AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19. Send information to Attn: Program
Manager, Continuing Operational Safety, FAA, New York ACO, 1600
Stewart Avenue, Suite 410, Westbury, New York, 11590; telephone 516-
228-7300; fax 516-794-5531. Before using any approved AMOC on any
airplane to which the AMOC applies, notify your principal
maintenance inspector (PMI) or principal avionics inspector (PAI),
as appropriate, or lacking a principal inspector, your local Flight
Standards District Office. The AMOC approval letter must
specifically reference this AD.
(2) Airworthy Product: For any requirement in this AD to obtain
corrective actions from a manufacturer or other source, use these
actions if they are FAA-approved. Corrective actions are considered
FAA-approved if they are approved by the State of Design Authority
(or their delegated agent). You are required to assure the product
is airworthy before it is returned to service.
(3) Reporting Requirements: For any reporting requirement in
this AD, under the provisions of the Paperwork Reduction Act (44
U.S.C. 3501 et seq.), the Office of Management and Budget (OMB) has
approved the information collection requirements and has assigned
OMB Control Number 2120-0056.
Related Information
(l) Refer to MCAI Canadian Airworthiness Directive CF-2009-35,
dated August 31, 2009; Bombardier Service Bulletin 670BA-27-051,
dated May 14, 2009; and Bombardier Service Bulletin 670BA-27-053,
Revision A, dated July 7, 2009; for related information.
Issued in Renton, Washington, on April 29, 2010.
Jeffrey E. Duven,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2010-10887 Filed 5-7-10; 8:45 am]
BILLING CODE 4910-13-P
