Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes, 13089-13092 [E9-6569]
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Federal Register / Vol. 74, No. 57 / Thursday, March 26, 2009 / Rules and Regulations
FAA AD Differences
information on the availability of this
material at NARA, call 202–741–6030, or go
to: https://www.archives.gov/federal_register/
code_of_federal_regulations/
ibr_locations.html.
Note 2: This AD differs from the MCAI
and/or service information as follows: No
differences.
Other FAA AD Provisions
(g) The following provisions also apply to
this AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, New York Aircraft
Certification Office, 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: Fabio Buttitta,
Aerospace Engineer, Airframe & Propulsion
Branch, ANE–171, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue,
Suite 410, Westbury, New York 11590;
telephone (516) 228–7303; fax (516) 794–
5531. Before using any approved AMOC on
any airplane to which the AMOC applies,
notify your appropriate principal inspector
(PI) in the FAA Flight Standards District
Office (FSDO), or lacking a PI, your local
FSDO.
(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 FAAapproved 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,
the Office of Management and Budget (OMB)
has approved the information collection
requirements and has assigned OMB Control
Number 2120–0056.
Related Information
(h) Refer to MCAI Canadian Airworthiness
Directive CF–2008–09, dated February 5,
2008; and Bombardier Service Bulletin 601R–
24–113, Revision A, dated August 11, 2005;
for related information.
Material Incorporated by Reference
(i) You must use Bombardier Service
Bulletin 601R–24–113, Revision A, dated
August 11, 2005, to do the actions required
by this AD, unless the AD specifies
otherwise.
(1) The Director of the Federal Register
approved the incorporation by reference of
this service information under 5 U.S.C.
552(a) and 1 CFR part 51.
(2) For service information identified in
ˆ
this AD, contact Bombardier, Inc., 400 CoteVertu Road West, Dorval, Qubec H4S 1Y9,
Canada; telephone 514–855–5000; fax 514–
855–7401; e-mail
thd.crj@aero.bombardier.com; Internet https://
www.bombardier.com.
(3) You may review copies of the 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 or 425–227–1152.
(4) You may also review copies of the
service information that is incorporated by
reference at the National Archives and
Records Administration (NARA). For
VerDate Nov<24>2008
16:51 Mar 25, 2009
Jkt 217001
Issued in Renton, Washington, on March 6,
2009.
Linda Navarro,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. E9–6221 Filed 3–25–09; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2008–0888; Directorate
Identifier 2008–NM–084–AD; Amendment
39–15840; AD 2009–06–04]
RIN 2120–AA64
Airworthiness Directives; Bombardier
Model CL–600–2B19 (Regional Jet
Series 100 & 440) Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
SUMMARY: We are adopting a new
airworthiness directive (AD) for the
products listed above. This 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:
Bombardier Aerospace has completed a
system safety review of the CL–600–2B19
aircraft fuel system against new fuel tank
safety standards * * *.
This assessment showed that there is
insufficient electrical bonding for lightning
protection at certain locations inside the fuel
tanks. In addition, the assessment also
revealed that existing bonding jumpers across
self-bonded couplings are not required.
Insufficient electrical bonding, if not
corrected, could result in arcing and
potential ignition source inside the fuel tank
during lightning strikes and consequent fuel
tank explosion.
We are issuing this AD to require
actions to correct the unsafe condition
on these products.
DATES: This AD becomes effective April
30, 2009.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of April 30, 2009.
ADDRESSES: You may examine the AD
docket on the Internet at https://
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13089
www.regulations.gov or in person at the
U.S. Department of Transportation,
Docket Operations, M–30, West
Building Ground Floor, Room W12–140,
1200 New Jersey Avenue, SE.,
Washington, DC.
FOR FURTHER INFORMATION CONTACT:
Mazdak Hobbi, Aerospace Engineer,
Airframe and Propulsion Branch, ANE–
171, FAA, New York Aircraft
Certification Office, 1600 Stewart
Avenue, Suite 410, Westbury, New York
11590; telephone (516) 228–7330; fax
(516) 794–5531.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would
apply to the specified products. That
NPRM was published in the Federal
Register on August 19, 2008 (73 FR
48312). That NPRM proposed to correct
an unsafe condition for the specified
products. The MCAI states:
Bombardier Aerospace has completed a
system safety review of the CL–600–2B19
aircraft fuel system against new fuel tank
safety standards, introduced in Chapter 525
of the Airworthiness Manual through Notice
of Proposed Amendment (NPA) 2002–043.
The identified non-compliances were
assessed using Transport Canada Policy
Letter No. 525–001 to determine if mandatory
corrective action is required.
This assessment showed that there is
insufficient electrical bonding for lightning
protection at certain locations inside the fuel
tanks. In addition, the assessment also
revealed that existing bonding jumpers across
self-bonded couplings are not required.
Insufficient electrical bonding, if not
corrected, could result in arcing and
potential ignition source inside the fuel tank
during lightning strikes and consequent fuel
tank explosion.
To correct the unsafe condition, this
directive mandates the modification of
certain bonding jumpers inside the fuel
tanks.
Corrective actions include, for certain
airplanes, a general visual inspection to
determine if the modification has been
done on both sides of the airplane. You
may obtain further information by
examining the MCAI in the AD docket.
Revision to Service Bulletin
Information
Since the NPRM was issued, we have
received Revision F of Bombardier
Service Bulletin 601R–28–055, dated
May 27, 2008. We referred to
Bombardier Service Bulletin 601R–28–
055, Revision E, dated March 17, 2008,
as the appropriate source of service
information for accomplishing the
actions proposed in the NPRM. Revision
F of Bombardier Service Bulletin 601R–
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28–055 changes Figure 7 in the
Accomplishment Instructions and also
includes small editorial changes that do
not affect the technical content of the
service bulletin. We have revised
paragraphs (f)(1) and (f)(2) of this AD to
refer to Revision F of Bombardier
Service Bulletin 601R–28–055, and we
have added paragraph (f)(3) of this AD
to give credit for actions done before the
effective date of this AD in accordance
with Revision E of Bombardier Service
Bulletin 601R–28–055.
Comments
We gave the public the opportunity to
participate in developing this AD. We
considered the comments received.
Request To Revise the Costs of
Compliance Section
Air Wisconsin states that the service
information does not discuss warranty
consideration for parts needed to do the
modification proposed in the NPRM,
and requests that we amend the Costs of
Compliance section of the NPRM to
reflect the cost of kits at $427 per
airplane.
We agree to revise the Costs of
Compliance section to reflect the parts
cost. The cost per product and fleet cost
have increased accordingly.
Request To Allow Credit for Prior
Service Bulletin Revision
Air Wisconsin states that Revision D
of Bombardier Service Bulletin 601R–
28–055, dated July 17, 2006, added a
statement to modify both sides of the
airplane, and requests that we revise the
NPRM to give credit for actions
performed according to Revision D of
the service bulletin. Air Wisconsin
notes that Canadian Airworthiness
Directive CF–2007–34 allows
compliance with Bombardier Service
Bulletin 601R–28–055, Revision D.
We agree with Air Wisconsin to give
credit for Revision D of Bombardier
Service Bulletin 601R–28–055, and have
revised paragraph (f)(3) of this AD
accordingly. We have also revised Table
1 of this AD to remove the restriction on
Revision D of Bombardier Service
Bulletin 601R–28–055. In addition, we
have removed Note (1) from the NPRM
and therefore Note (2) of the NPRM
becomes Note 1 of this AD. Note (2) is
also revised to remove the difference for
Revision D of Bombardier Service
Bulletin 601R–28–055.
Conclusion
We reviewed the available data,
including the comments received, and
determined that air safety and the
public interest require adopting the AD
with the changes described previously.
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16:51 Mar 25, 2009
Jkt 217001
We determined that these changes will
not increase the economic burden on
any operator or increase the scope of the
AD.
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 required different
actions in this AD from those in the
MCAI in order to follow our FAA
policies. Any such differences are
highlighted in a NOTE within the AD.
Costs of Compliance
We estimate that this AD will affect
about 686 products of U.S. registry. We
also estimate that it will take about 18
work-hours per product to comply with
the basic requirements of this AD. The
average labor rate is $80 per work-hour.
Required parts will cost about $427 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 parts. 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 this AD
to the U.S. operators to be $1,280,762,
or $1,867 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:
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.
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Regulatory Findings
We 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 this AD:
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.
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 the NPRM, 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.
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:
■
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 adding
the following new AD:
■
2009–06–04 Bombardier, Inc. (Formerly
Canadair): Amendment 39–15840.
Docket No. FAA–2008–0888; Directorate
Identifier 2008–NM–084–AD.
Effective Date
(a) This airworthiness directive (AD)
becomes effective April 30, 2009.
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Federal Register / Vol. 74, No. 57 / Thursday, March 26, 2009 / Rules and Regulations
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier Model
CL–600–2B19 (Regional Jet Series 100 & 440)
airplanes, serial numbers 7003 through 7067,
and 7069 through 7929, certificated in any
category.
Subject
(d) Air Transport Association (ATA) of
America Code 28: Fuel.
Reason
(e) The mandatory continuing
airworthiness information (MCAI) states:
Bombardier Aerospace has completed a
system safety review of the CL–600–2B19
aircraft fuel system against new fuel tank
safety standards, introduced in Chapter 525
of the Airworthiness Manual through Notice
of Proposed Amendment (NPA) 2002–043.
The identified non-compliances were
assessed using Transport Canada Policy
Letter No. 525–001 to determine if mandatory
corrective action is required.
This assessment showed that there is
insufficient electrical bonding for lightning
protection at certain locations inside the fuel
tanks. In addition, the assessment also
revealed that existing bonding jumpers across
self-bonded couplings are not required.
Insufficient electrical bonding, if not
corrected, could result in arcing and
potential ignition source inside the fuel tank
during lightning strikes and consequent fuel
tank explosion.
To correct the unsafe condition, this
directive mandates the modification of
certain bonding jumpers inside the fuel
tanks.
Corrective actions include, for certain
airplanes, a general visual inspection to
determine if the modification has been done
on both sides of the airplane.
Actions and Compliance
(f) Unless already done: Within 5,000 flight
hours after the effective date of this AD, do
the following actions.
(1) For airplanes on which none of the
Bombardier service bulletins identified in
Table 1 of this AD have been incorporated as
of the effective date of this AD: Modify the
fuel tank bonding jumpers inside the wing
and center fuel tanks in accordance with Part
A of the Accomplishment Instructions of
Bombardier Service Bulletin 601R–28–055,
Revision F, dated May 27, 2008.
TABLE 1—SERVICE BULLETINS
Bombardier service bulletin—
601R–28–055
601R–28–055
601R–28–055
601R–28–055
...............................................................................................................................................
...............................................................................................................................................
...............................................................................................................................................
...............................................................................................................................................
(2) For airplanes on which any Bombardier
service bulletin identified in Table 1 of this
AD has been incorporated as of the effective
date of this AD: Do a general visual
inspection of the inside of the wing and
center fuel tanks to determine if the actions
in Part A of the Accomplishment Instructions
of Bombardier Service Bulletin 601R–28–055,
Revision F, dated May 27, 2008, have been
done on both sides of the airplane. If Part A
of Bombardier Service Bulletin 601R–28–055,
Revision F, dated May 27, 2008, has not been
done on either side of the airplane, before
further flight, do the actions specified in Part
A of the Accomplishment Instructions of
Bombardier Service Bulletin 601R–28–055,
Revision F, dated May 27, 2008; for the side
of the airplane on which Part A of
Bombardier Service Bulletin 601R–28–055,
Revision F, dated May 27, 2008, has not been
done.
(3) Actions done before the effective date
of this AD in accordance with Bombardier
Service Bulletin 601R–28–055, Revision D,
dated July 17, 2006; or Bombardier Service
Bulletin 601R–28–055, Revision E, dated
March 17, 2008; is acceptable for compliance
with the corresponding requirements of this
AD.
FAA AD Differences
Note 1: This AD differs from the MCAI
and/or service information as follows:
The MCAI specifies that the modification
must be done on all airplanes in accordance
with Bombardier Service Bulletin 601R–28–
055, Revision D, dated July 17, 2006, and that
accomplishing Bombardier Service Bulletin
601R–28–055, dated May 4, 2004;
Bombardier Service Bulletin 601R–28–055,
Revision A, dated February 14, 2005; or
Bombardier Service Bulletin 601R–28–055,
Revision B, dated September 14, 2005; does
not satisfy the requirements of the MCAI.
This AD requires doing the modification on
VerDate Nov<24>2008
Revision—
16:51 Mar 25, 2009
Jkt 217001
Original ........
A ..................
B ..................
C .................
Dated—
May 4, 2004.
February 14, 2005.
September 14, 2005.
January 9, 2006.
airplanes on which any Bombardier service
bulletin identified in Table 1 of this AD, has
not been done. For airplanes on which any
Bombardier service bulletin identified in
Table 1 of this AD has been done, this AD
requires inspecting to determine if the
modification is done on both sides of the
airplane and modifying the airplane if the
modification was not done on both sides.
requirements and has assigned OMB Control
Number 2120–0056.
Other FAA AD Provisions
(g) The following provisions also apply to
this AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, New York Aircraft
Certification Office, 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: Mazdak Hobbi,
Aerospace Engineer, Airframe and
Propulsion Branch, ANE–171, FAA, New
York Aircraft Certification Office, 1600
Stewart Avenue, Suite 410, Westbury, New
York 11590; telephone (516) 228–7330; fax
(516) 794–5531. Before using any approved
AMOC on any airplane to which the AMOC
applies, notify your appropriate principal
inspector (PI) in the FAA Flight Standards
District Office (FSDO), or lacking a PI, your
local FSDO.
(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 FAAapproved 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,
the Office of Management and Budget (OMB)
has approved the information collection
Material Incorporated by Reference
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Related Information
(h) Refer to MCAI Canadian Airworthiness
Directive CF–2007–34, dated December 21,
2007; and Bombardier Service Bulletin 601R–
28–055, Revision F, dated May 27, 2008; for
related information.
(i) You must use Bombardier Service
Bulletin 601R–28–055, Revision F, dated
May 27, 2008, to do the actions required by
this AD, unless the AD specifies otherwise.
(1) The Director of the Federal Register
approved the incorporation by reference of
this service information under 5 U.S.C.
552(a) and 1 CFR part 51.
(2) For service information identified in
ˆ
this AD, contact Bombardier, 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.
(3) You may review copies of the 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 or 425–227–1152.
(4) You may also review copies of the
service information that is incorporated by
reference at the National Archives and
Records Administration (NARA). For
information on the availability of this
material at NARA, call 202–741–6030, or go
to: https://www.archives.gov/federal_register/
code_of_federal_regulations/
ibr_locations.html.
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Federal Register / Vol. 74, No. 57 / Thursday, March 26, 2009 / Rules and Regulations
Issued in Renton, Washington, on February
27, 2009.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E9–6569 Filed 3–25–09; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2008–1025; Directorate
Identifier 2008–NE–31–AD; Amendment 39–
15862; AD 2009–07–03]
RIN 2120–AA64
Airworthiness Directives; General
Electric Company CF6–80C2 and CF6–
80E1 Series Turbofan Engines
AGENCY: Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
SUMMARY: The FAA is adopting a new
airworthiness directive (AD) for General
Electric Company (GE) CF6–80C2 and
CF6–80E1 series turbofan engines with
high-pressure compressor rotor (HPCR)
spool shaft stage 14 disks, part number
(P/N) 1703M49G02, 1703M49G03, or
1509M71G10 installed. This AD
requires a one-time eddy current
inspection (ECI) of the HPCR spool shaft
stage 14 disk web for crack indications,
and removing from service any parts
with web cracks. This AD results from
reports of 12 HPCR spool shaft stage 14
disks with web cracks discovered to
date. We are issuing this AD to prevent
cracks from propagating to an
uncontained failure of the disk and
damage to the airplane.
DATES: This AD becomes effective April
30, 2009. The Director of the Federal
Register approved the incorporation by
reference of certain publications listed
in the regulations as of April 30, 2009.
ADDRESSES: You can get the service
information identified in this AD from
General Electric Company via Lockheed
Martin Technology Services, 10525
Chester Road, Suite C, Cincinnati, Ohio
45215, telephone (513) 672–8400, fax
(513) 672–8422.
The Docket Operations office is
located at Docket Management Facility,
U.S. Department of Transportation, 1200
New Jersey Avenue, SE., West Building
Ground Floor, Room W12–140,
Washington, DC 20590–0001.
FOR FURTHER INFORMATION CONTACT:
Christopher Richards, Aerospace
Engineer, Engine Certification Office,
FAA, Engine & Propeller Directorate, 12
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16:51 Mar 25, 2009
Jkt 217001
New England Executive Park,
Burlington, MA 01803; e-mail:
christopher.j.richards@faa.gov;
telephone (781) 238–7133; fax (781)
238–7199.
SUPPLEMENTARY INFORMATION: The FAA
proposed to amend 14 CFR part 39 with
a proposed AD. The proposed AD
applies to GE CF6–80C2 and CF6–80E1
series turbofan engines with HPCR
spool shaft stage 14 disks, P/N
1703M49G02, 1703M49G03, or
1509M71G10 installed. We published
the proposed AD in the Federal Register
on November 26, 2008 (73 FR 71949).
That action proposed to require a onetime ECI of the HPCR spool shaft stage
14 disk web for crack indications, and
removing from service any parts with
web cracks.
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 AD, the regulatory
evaluation, any comments received, and
other information. The street address for
the Docket Operations office (telephone
(800) 647–5527) is provided in the
ADDRESSES section. Comments will be
available in the AD docket shortly after
receipt.
Comments
We provided the public the
opportunity to participate in the
development of this AD. We have
considered the comments received.
Compliance Should Be at Next Engine
Shop Visit
One commenter, Amiri Flight, states
that the compliance should be at next
engine shop visit and should not have
a calendar time limit, which may
require forced removal/shop visit of
low-utilization engines.
We agree. The compliance in the
proposed AD, and the AD, require
inspection at next engine shop visit
only. We did not change the AD.
Request To Correct the Boeing Airplane
Models
One commenter, The Boeing
Company, requests that we correct some
of the minor models listed in the
applicability section, and add a missing
model. They state that for their
airplanes, the AD should only list 747
and 767 models as-listed in the type
certificate data sheet. We agree. We
changed the AD to state ‘‘Boeing 747–
200B/300/400/400D/400F, 767–200/
300/400F/400ER and MD–11 airplanes’’.
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Costs of Compliance Is the Cost of a
Single Spool Replacement
One commenter, FedEx Express,
states that it appears that the proposed
AD costs of compliance total to U.S.
operators of $594,500, is inaccurate and
might be the cost of a single spool
replacement, rather than the
accumulated total of the proposed
action, if the estimate of 10 affected
units is accurate.
We agree that the proposed AD total
is inaccurate. We had a typo in the
proposed AD costs of compliance. The
total cost should have been $5,594,500.
We corrected the total in the final rule
AD.
Conclusion
We have carefully reviewed the
available data, including the comments
received, and determined that air safety
and the public interest require adopting
the AD with the changes described
previously. We have determined that
these changes will neither increase the
economic burden on any operator nor
increase the scope of the AD.
Costs of Compliance
We estimate that this AD will affect
126 CF6–80C2 and CF6–80E1 series
turbofan engines installed on airplanes
of U.S. registry. We also estimate that it
will take about 10 work-hours per
engine to perform the inspection, and
about 281 hours to complete the actions
if done at module level, and that the
average labor rate is $80 per work-hour.
The pro-rated cost of a HPCR stage 10–
14 spool shaft, based on average life
remaining on disks found cracked, is
$526,890. Using data on the percentage
of the affected fleet already in
compliance with the corrective actions,
we estimate there will be 10 disks found
cracked as a result of these inspections.
Based on these figures, we estimate the
total cost of the AD to U.S. operators to
be $5,594,500.
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
E:\FR\FM\26MRR1.SGM
26MRR1
]]>Agencies
[Federal Register Volume 74, Number 57 (Thursday, March 26, 2009)]
[Rules and Regulations]
[Pages 13089-13092]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E9-6569]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2008-0888; Directorate Identifier 2008-NM-084-AD;
Amendment 39-15840; AD 2009-06-04]
RIN 2120-AA64
Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional
Jet Series 100 & 440) Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for the
products listed above. This 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:
Bombardier Aerospace has completed a system safety review of the
CL-600-2B19 aircraft fuel system against new fuel tank safety
standards * * *.
This assessment showed that there is insufficient electrical
bonding for lightning protection at certain locations inside the
fuel tanks. In addition, the assessment also revealed that existing
bonding jumpers across self-bonded couplings are not required.
Insufficient electrical bonding, if not corrected, could result in
arcing and potential ignition source inside the fuel tank during
lightning strikes and consequent fuel tank explosion.
We are issuing this AD to require actions to correct the unsafe
condition on these products.
DATES: This AD becomes effective April 30, 2009.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of April 30,
2009.
ADDRESSES: You may examine the AD docket on the Internet at https://www.regulations.gov or in person at the U.S. Department of
Transportation, Docket Operations, M-30, West Building Ground Floor,
Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC.
FOR FURTHER INFORMATION CONTACT: Mazdak Hobbi, Aerospace Engineer,
Airframe and Propulsion Branch, ANE-171, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New
York 11590; telephone (516) 228-7330; fax (516) 794-5531.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would apply to the specified products.
That NPRM was published in the Federal Register on August 19, 2008 (73
FR 48312). That NPRM proposed to correct an unsafe condition for the
specified products. The MCAI states:
Bombardier Aerospace has completed a system safety review of the
CL-600-2B19 aircraft fuel system against new fuel tank safety
standards, introduced in Chapter 525 of the Airworthiness Manual
through Notice of Proposed Amendment (NPA) 2002-043. The identified
non-compliances were assessed using Transport Canada Policy Letter
No. 525-001 to determine if mandatory corrective action is required.
This assessment showed that there is insufficient electrical
bonding for lightning protection at certain locations inside the
fuel tanks. In addition, the assessment also revealed that existing
bonding jumpers across self-bonded couplings are not required.
Insufficient electrical bonding, if not corrected, could result in
arcing and potential ignition source inside the fuel tank during
lightning strikes and consequent fuel tank explosion.
To correct the unsafe condition, this directive mandates the
modification of certain bonding jumpers inside the fuel tanks.
Corrective actions include, for certain airplanes, a general visual
inspection to determine if the modification has been done on both sides
of the airplane. You may obtain further information by examining the
MCAI in the AD docket.
Revision to Service Bulletin Information
Since the NPRM was issued, we have received Revision F of
Bombardier Service Bulletin 601R-28-055, dated May 27, 2008. We
referred to Bombardier Service Bulletin 601R-28-055, Revision E, dated
March 17, 2008, as the appropriate source of service information for
accomplishing the actions proposed in the NPRM. Revision F of
Bombardier Service Bulletin 601R-
[[Page 13090]]
28-055 changes Figure 7 in the Accomplishment Instructions and also
includes small editorial changes that do not affect the technical
content of the service bulletin. We have revised paragraphs (f)(1) and
(f)(2) of this AD to refer to Revision F of Bombardier Service Bulletin
601R-28-055, and we have added paragraph (f)(3) of this AD to give
credit for actions done before the effective date of this AD in
accordance with Revision E of Bombardier Service Bulletin 601R-28-055.
Comments
We gave the public the opportunity to participate in developing
this AD. We considered the comments received.
Request To Revise the Costs of Compliance Section
Air Wisconsin states that the service information does not discuss
warranty consideration for parts needed to do the modification proposed
in the NPRM, and requests that we amend the Costs of Compliance section
of the NPRM to reflect the cost of kits at $427 per airplane.
We agree to revise the Costs of Compliance section to reflect the
parts cost. The cost per product and fleet cost have increased
accordingly.
Request To Allow Credit for Prior Service Bulletin Revision
Air Wisconsin states that Revision D of Bombardier Service Bulletin
601R-28-055, dated July 17, 2006, added a statement to modify both
sides of the airplane, and requests that we revise the NPRM to give
credit for actions performed according to Revision D of the service
bulletin. Air Wisconsin notes that Canadian Airworthiness Directive CF-
2007-34 allows compliance with Bombardier Service Bulletin 601R-28-055,
Revision D.
We agree with Air Wisconsin to give credit for Revision D of
Bombardier Service Bulletin 601R-28-055, and have revised paragraph
(f)(3) of this AD accordingly. We have also revised Table 1 of this AD
to remove the restriction on Revision D of Bombardier Service Bulletin
601R-28-055. In addition, we have removed Note (1) from the NPRM and
therefore Note (2) of the NPRM becomes Note 1 of this AD. Note (2) is
also revised to remove the difference for Revision D of Bombardier
Service Bulletin 601R-28-055.
Conclusion
We reviewed the available data, including the comments received,
and determined that air safety and the public interest require adopting
the AD with the changes described previously. We determined that these
changes will not increase the economic burden on any operator or
increase the scope of the AD.
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 required different actions in this AD from those
in the MCAI in order to follow our FAA policies. Any such differences
are highlighted in a NOTE within the AD.
Costs of Compliance
We estimate that this AD will affect about 686 products of U.S.
registry. We also estimate that it will take about 18 work-hours per
product to comply with the basic requirements of this AD. The average
labor rate is $80 per work-hour. Required parts will cost about $427
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 parts. 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 this AD to the
U.S. operators to be $1,280,762, or $1,867 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: 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 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 this AD:
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.
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 the NPRM, 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.
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 FAA amends Sec. 39.13 by adding the following new AD:
2009-06-04 Bombardier, Inc. (Formerly Canadair): Amendment 39-15840.
Docket No. FAA-2008-0888; Directorate Identifier 2008-NM-084-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective April
30, 2009.
[[Page 13091]]
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier Model CL-600-2B19 (Regional
Jet Series 100 & 440) airplanes, serial numbers 7003 through 7067,
and 7069 through 7929, certificated in any category.
Subject
(d) Air Transport Association (ATA) of America Code 28: Fuel.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
Bombardier Aerospace has completed a system safety review of the
CL-600-2B19 aircraft fuel system against new fuel tank safety
standards, introduced in Chapter 525 of the Airworthiness Manual
through Notice of Proposed Amendment (NPA) 2002-043. The identified
non-compliances were assessed using Transport Canada Policy Letter
No. 525-001 to determine if mandatory corrective action is required.
This assessment showed that there is insufficient electrical
bonding for lightning protection at certain locations inside the
fuel tanks. In addition, the assessment also revealed that existing
bonding jumpers across self-bonded couplings are not required.
Insufficient electrical bonding, if not corrected, could result in
arcing and potential ignition source inside the fuel tank during
lightning strikes and consequent fuel tank explosion.
To correct the unsafe condition, this directive mandates the
modification of certain bonding jumpers inside the fuel tanks.
Corrective actions include, for certain airplanes, a general
visual inspection to determine if the modification has been done on
both sides of the airplane.
Actions and Compliance
(f) Unless already done: Within 5,000 flight hours after the
effective date of this AD, do the following actions.
(1) For airplanes on which none of the Bombardier service
bulletins identified in Table 1 of this AD have been incorporated as
of the effective date of this AD: Modify the fuel tank bonding
jumpers inside the wing and center fuel tanks in accordance with
Part A of the Accomplishment Instructions of Bombardier Service
Bulletin 601R-28-055, Revision F, dated May 27, 2008.
Table 1--Service Bulletins
----------------------------------------------------------------------------------------------------------------
Bombardier service bulletin-- Revision-- Dated--
----------------------------------------------------------------------------------------------------------------
601R-28-055............................. Original.................... May 4, 2004.
601R-28-055............................. A........................... February 14, 2005.
601R-28-055............................. B........................... September 14, 2005.
601R-28-055............................. C........................... January 9, 2006.
----------------------------------------------------------------------------------------------------------------
(2) For airplanes on which any Bombardier service bulletin
identified in Table 1 of this AD has been incorporated as of the
effective date of this AD: Do a general visual inspection of the
inside of the wing and center fuel tanks to determine if the actions
in Part A of the Accomplishment Instructions of Bombardier Service
Bulletin 601R-28-055, Revision F, dated May 27, 2008, have been done
on both sides of the airplane. If Part A of Bombardier Service
Bulletin 601R-28-055, Revision F, dated May 27, 2008, has not been
done on either side of the airplane, before further flight, do the
actions specified in Part A of the Accomplishment Instructions of
Bombardier Service Bulletin 601R-28-055, Revision F, dated May 27,
2008; for the side of the airplane on which Part A of Bombardier
Service Bulletin 601R-28-055, Revision F, dated May 27, 2008, has
not been done.
(3) Actions done before the effective date of this AD in
accordance with Bombardier Service Bulletin 601R-28-055, Revision D,
dated July 17, 2006; or Bombardier Service Bulletin 601R-28-055,
Revision E, dated March 17, 2008; is acceptable for compliance with
the corresponding requirements of this AD.
FAA AD Differences
Note 1: This AD differs from the MCAI and/or service information
as follows:
The MCAI specifies that the modification must be done on all
airplanes in accordance with Bombardier Service Bulletin 601R-28-
055, Revision D, dated July 17, 2006, and that accomplishing
Bombardier Service Bulletin 601R-28-055, dated May 4, 2004;
Bombardier Service Bulletin 601R-28-055, Revision A, dated February
14, 2005; or Bombardier Service Bulletin 601R-28-055, Revision B,
dated September 14, 2005; does not satisfy the requirements of the
MCAI. This AD requires doing the modification on airplanes on which
any Bombardier service bulletin identified in Table 1 of this AD,
has not been done. For airplanes on which any Bombardier service
bulletin identified in Table 1 of this AD has been done, this AD
requires inspecting to determine if the modification is done on both
sides of the airplane and modifying the airplane if the modification
was not done on both sides.
Other FAA AD Provisions
(g) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, New
York Aircraft Certification Office, 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: Mazdak Hobbi, Aerospace
Engineer, Airframe and Propulsion Branch, ANE-171, FAA, New York
Aircraft Certification Office, 1600 Stewart Avenue, Suite 410,
Westbury, New York 11590; telephone (516) 228-7330; fax (516) 794-
5531. Before using any approved AMOC on any airplane to which the
AMOC applies, notify your appropriate principal inspector (PI) in
the FAA Flight Standards District Office (FSDO), or lacking a PI,
your local FSDO.
(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, the
Office of Management and Budget (OMB) has approved the information
collection requirements and has assigned OMB Control Number 2120-
0056.
Related Information
(h) Refer to MCAI Canadian Airworthiness Directive CF-2007-34,
dated December 21, 2007; and Bombardier Service Bulletin 601R-28-
055, Revision F, dated May 27, 2008; for related information.
Material Incorporated by Reference
(i) You must use Bombardier Service Bulletin 601R-28-055,
Revision F, dated May 27, 2008, to do the actions required by this
AD, unless the AD specifies otherwise.
(1) The Director of the Federal Register approved the
incorporation by reference of this service information under 5
U.S.C. 552(a) and 1 CFR part 51.
(2) For service information identified in this 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.
(3) You may review copies of the 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 or 425-227-1152.
(4) You may also review copies of the service information that
is incorporated by reference at the National Archives and Records
Administration (NARA). For information on the availability of this
material at NARA, call 202-741-6030, or go to: https://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
[[Page 13092]]
Issued in Renton, Washington, on February 27, 2009.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E9-6569 Filed 3-25-09; 8:45 am]
BILLING CODE 4910-13-P
