Airworthiness Directives; Bombardier, Inc., Airplanes, 11191-11193 [2021-03585]
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Federal Register / Vol. 86, No. 35 / Wednesday, February 24, 2021 / Proposed Rules
any category, as identified in European
Union Aviation Safety Agency (EASA) AD
2020–0188, dated August 24, 2020 (EASA AD
2020–0188).
(d) Subject
Air Transport Association (ATA) of
America Code 25, Equipment/Furnishings.
(e) Reason
This AD was prompted by a report that
non-certified ANCRA seat tracks were
installed on some airplanes and that those
seat tracks might not sustain required loads
during an emergency landing. The FAA is
issuing this AD to address seat tracks that
could fail and lead to seat detachment during
an emergency landing, which could result in
injury to airplane occupants and prevent
evacuation of the airplane.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Requirements
Except as specified in paragraph (h) of this
AD: Comply with all required actions and
compliance times specified in, and in
accordance with, EASA AD 2020–0188.
(h) Exceptions to EASA AD 2020–0188
(1) Where EASA AD 2020–0188 refers to its
effective date, this AD requires using the
effective date of this AD.
(2) The ‘‘Remarks’’ section of EASA AD
2020–0188 does not apply to this AD.
khammond on DSKJM1Z7X2PROD with PROPOSALS
(i) No Reporting Requirement
Although the service information
referenced in EASA AD 2020–0188 specifies
to submit certain information to the
manufacturer, this AD does not include that
requirement.
(j) Other FAA AD Provisions
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, Large Aircraft
Section, International Validation Branch,
FAA, has the authority to approve AMOCs
for this AD, if requested using the procedures
found in 14 CFR 39.19. In accordance with
14 CFR 39.19, send your request to your
principal inspector or responsible Flight
Standards Office, as appropriate. If sending
information directly to the Large Aircraft
Section, International Validation Branch,
send it to the attention of the person
identified in paragraph (k)(2) of this AD.
Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov. Before using any
approved AMOC, notify your appropriate
principal inspector, or lacking a principal
inspector, the manager of the responsible
Flight Standards Office.
(2) Contacting the Manufacturer: For any
requirement in this AD to obtain instructions
from a manufacturer, the instructions must
be accomplished using a method approved
by the Manager, Large Aircraft Section,
International Validation Branch, FAA; or
EASA; or Dassault Aviation’s EASA Design
Organization Approval (DOA). If approved by
the DOA, the approval must include the
DOA-authorized signature.
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Jkt 253001
(k) Related Information
(1) For information about EASA AD 2020–
0188, contact the EASA, Konrad-AdenauerUfer 3, 50668 Cologne, Germany; telephone
+49 221 8999 000; email ADs@
easa.europa.eu; internet
www.easa.europa.eu. You may find this
EASA AD on the EASA website at https://
ad.easa.europa.eu. You may view this
material at the FAA, Airworthiness Products
Section, Operational Safety Branch, 2200
South 216th St., Des Moines, WA. For
information on the availability of this
material at the FAA, call 206–231–3195. This
material may be found in the AD docket on
the internet at https://www.regulations.gov
by searching for and locating Docket No.
FAA–2021–0029.
(2) For more information about this AD,
contact Tom Rodriguez, Aerospace Engineer,
Large Aircraft Section, International
Validation Branch, FAA, 2200 South 216th
St., Des Moines, WA 98198; telephone and
fax 206–231–3226; email tom.rodriguez@
faa.gov.
Issued on February 4, 2021.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives,
Compliance & Airworthiness Division,
Aircraft Certification Service.
[FR Doc. 2021–03579 Filed 2–23–21; 8:45 am]
BILLING CODE 4910–13–P
11191
The FAA must receive comments
on this proposed AD by April 12, 2021.
ADDRESSES: You may send comments,
using the procedures found in 14 CFR
11.43 and 11.45, 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: Deliver to Mail
address above between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
For service information identified in
this NPRM, contact Bombardier, Inc.,
400 Coˆte-Vertu Road West, Dorval,
Que´bec H4S 1Y9, Canada; telephone
514–855–5000; fax 514–855–7401; email
thd.crj@aero.bombardier.com; internet
https://www.bombardier.com. You may
view this service information at the
FAA, Airworthiness Products Section,
Operational Safety Branch, 2200 South
216th St., Des Moines, WA. For
information on the availability of this
material at the FAA, call 206–231–3195.
DATES:
DEPARTMENT OF TRANSPORTATION
Examining the AD Docket
Federal Aviation Administration
You may examine the AD docket on
the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2021–
0030; or in person at Docket Operations
between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
The AD docket contains this NPRM, any
comments received, and other
information. The street address for
Docket Operations is listed above.
Comments will be available in the AD
docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT:
Siddeeq Bacchus, Aerospace Engineer,
Mechanical Systems and Administrative
Services Section, FAA, New York ACO
Branch, 1600 Stewart Avenue, Suite
410, Westbury, NY 11590; telephone
516–228–7362; fax 516–794–5531; email
9-avs-nyaco-cos@faa.gov.
SUPPLEMENTARY INFORMATION:
14 CFR Part 39
[Docket No. FAA–2021–0030; Project
Identifier MCAI–2020–01395–T]
RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc., Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
The FAA proposes to adopt a
new airworthiness directive (AD) for
certain Bombardier, Inc., Model BD–
700–1A10 airplanes. This proposed AD
was prompted by a report indicating
that during installation, a fuel pipe
bracket assembly on the intermediate rib
in the center fuel tank was mislocated,
resulting in an offset between the fitting
assembly and the refuel/defuel tube
assembly. This proposed AD would
require modification of the fuel pipe
bracket assembly, including all related
investigative actions and corrective
actions, if necessary; and performing an
operational test of the refuel and defuel
system. The FAA is proposing this AD
to address the unsafe condition on these
products.
SUMMARY:
PO 00000
Frm 00036
Fmt 4702
Sfmt 4702
Comments Invited
The FAA invites you to send any
written relevant data, views, or
arguments about this proposal. Send
your comments to an address listed
under ADDRESSES. Include ‘‘Docket No.
FAA–2021–0030; Project Identifier
MCAI–2020–01395–T’’ at the beginning
of your comments. The most helpful
comments reference a specific portion of
the proposal, explain the reason for any
E:\FR\FM\24FEP1.SGM
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11192
Federal Register / Vol. 86, No. 35 / Wednesday, February 24, 2021 / Proposed Rules
recommended change, and include
supporting data. The FAA will consider
all comments received by the closing
date and may amend the proposal
because of those comments.
Except for Confidential Business
Information (CBI) as described in the
following paragraph, and other
information as described in 14 CFR
11.35, the FAA will post all comments
received, without change, to https://
www.regulations.gov, including any
personal information you provide. The
agency will also post a report
summarizing each substantive verbal
contact received about this proposed
AD.
Confidential Business Information
CBI is commercial or financial
information that is both customarily and
actually treated as private by its owner.
Under the Freedom of Information Act
(FOIA) (5 U.S.C. 552), CBI is exempt
from public disclosure. If your
comments responsive to this NPRM
contain commercial or financial
information that is customarily treated
as private, that you actually treat as
private, and that is relevant or
responsive to this NPRM, it is important
that you clearly designate the submitted
comments as CBI. Please mark each
page of your submission containing CBI
as ‘‘PROPIN.’’ The FAA will treat such
marked submissions as confidential
under the FOIA, and they will not be
placed in the public docket of this
NPRM. Submissions containing CBI
should be sent to Siddeeq Bacchus,
Aerospace Engineer, Mechanical
Systems and Administrative Services
Section, FAA, New York ACO Branch,
1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516–
228–7362; fax 516–794–5531; email 9avs-nyaco-cos@faa.gov. Any
commentary that the FAA receives
which is not specifically designated as
CBI will be placed in the public docket
for this rulemaking.
Discussion
Transport Canada Civil Aviation
(TCCA), which is the aviation authority
for Canada, has issued TCCA AD CF–
2020–37, dated October 9, 2020
(referred to after this as the Mandatory
Continuing Airworthiness Information,
or the MCAI), to correct an unsafe
condition for certain Bombardier, Inc.,
Model BD–700–1A10 airplanes. You
may examine the MCAI in the AD
docket on the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2021–
0030.
This proposed AD was prompted by
a report indicating that during
installation, a fuel pipe bracket
assembly on the intermediate rib in the
center fuel tank was mislocated,
resulting in an offset between the fitting
assembly and the refuel/defuel tube
assembly. The FAA is proposing this
AD to address the offset, which could
cause a preload on the fuel pipes and
reduce their ability to absorb shock or
vibration-induced loads, making the
tube and clamp more prone to stress
corrosion cracking. This could lead to
failure of the coupling and the bracket
and p-clamp assembly, resulting in fuel
leakage and loss of electrical bonding
between fuel pipes, and lightninginduced sparking that could induce fuel
ignition. See the MCAI for additional
background information.
Related Service Information Under 1
CFR Part 51
Bombardier has issued Service
Bulletin 700–28–6006, dated June 1,
2020. This service information describes
procedures for a modification of the fuel
pipe bracket assembly, including
investigative actions (a detailed visual
inspection of the fuel pipe assembly for
any damaged paint, permanent
deformation, corrosion, cracking,
gouges, dents, or deep scratches);
installation of certain new parts;
replacement of the fuel pipe and fuel
pipe bracket assembly, if necessary; and
an operational test of the refuel and
defuel system. This service information
is reasonably available because the
interested parties have access to it
through their normal course of business
or by the means identified in the
ADDRESSES section.
FAA’s Determination
This product has been approved by
the aviation authority of another
country, and is approved for operation
in the United States. Pursuant to the
FAA’s bilateral agreement with the State
of Design Authority, the FAA has been
notified of the unsafe condition
described in the MCAI and service
information referenced above. The FAA
is proposing this AD because the FAA
evaluated all the relevant information
and determined the unsafe condition
described previously is likely to exist or
develop on other products of the same
type design.
Proposed Requirements of This NPRM
This proposed AD would require
accomplishing the actions specified in
the service information described
previously.
Costs of Compliance
The FAA estimates that this proposed
AD affects 51 airplanes of U.S. registry.
The FAA estimates the following costs
to comply with this proposed AD:
ESTIMATED COSTS FOR REQUIRED ACTIONS
Labor cost
Parts cost
Cost per
product
Cost on U.S.
operators
10 work-hours × $85 per hour = $850 ........................................................................................
$904
$1,754
$89,454
khammond on DSKJM1Z7X2PROD with PROPOSALS
The FAA estimates the following
costs to do any necessary on-condition
action that would be required based on
the results of any required actions. The
FAA has no way of determining the
number of aircraft that might need this
on-condition action:
ESTIMATED COSTS OF ON-CONDITION ACTIONS
Labor cost
Parts cost
3 work-hours × $85 per hour = $255 ......................................................................................................................
VerDate Sep<11>2014
16:41 Feb 23, 2021
Jkt 253001
PO 00000
Frm 00037
Fmt 4702
Sfmt 4702
E:\FR\FM\24FEP1.SGM
24FEP1
$1,937
Cost per
product
$2,192
Federal Register / Vol. 86, No. 35 / Wednesday, February 24, 2021 / Proposed Rules
According to the manufacturer, some
or all of the costs of this proposed AD
may be covered under warranty, thereby
reducing the cost impact on affected
individuals. The FAA does not control
warranty coverage for affected
individuals. As a result, the FAA has
included all known costs in the cost
estimate.
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.
Authority for This Rulemaking
§ 39.13
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.
The FAA is 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
The FAA 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) Will not affect intrastate aviation
in Alaska, 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.
khammond on DSKJM1Z7X2PROD with PROPOSALS
the FAA proposes to amend 14 CFR part
39 as follows:
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,
VerDate Sep<11>2014
16:41 Feb 23, 2021
Jkt 253001
[Amended]
2. The FAA amends § 39.13 by adding
the following new airworthiness
directive:
Bombardier, Inc.: Docket No. FAA–2021–
0030; Project Identifier MCAI–2020–
01395–T.
(a) Comments Due Date
The FAA must receive comments by April
12, 2021.
(b) Affected Airworthiness Directives (ADs)
None.
(c) Applicability
This AD applies to Bombardier, Inc.,
Model BD–700–1A10 airplanes, certificated
in any category, serial numbers 9657 through
9844 inclusive.
(d) Subject
Air Transport Association (ATA) of
America Code 28, Fuel.
(e) Reason
This AD was prompted by a report
indicating that during installation, a fuel pipe
bracket assembly on the intermediate rib in
the center fuel tank was mislocated, resulting
in an offset between the fitting assembly and
the refuel/defuel tube assembly. The FAA is
issuing this AD to address the offset, which
could cause a preload on the fuel pipes and
reduce their ability to absorb shock or
vibration-induced loads, making the tube and
clamp more prone to stress corrosion
cracking. This could lead to failure of the
coupling and the bracket and p-clamp
assembly, resulting in fuel leakage and loss
of electrical bonding between fuel pipes, and
lightning-induced sparking that could induce
fuel ignition.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Inspection and Corrective Action
Within 30 months after the effective date
of this AD: Perform a modification of the fuel
pipe bracket assembly and refuel tube
assembly; do all related investigative actions
and applicable corrective actions; and
perform an operational test of the refuel and
defuel system; in accordance with paragraphs
2.B. and 2.C. of the Accomplishment
Instructions of Bombardier Service Bulletin
700–28–6006, dated June 1, 2020. All related
investigative and corrective actions must be
done before further flight.
PO 00000
Frm 00038
Fmt 4702
Sfmt 4702
11193
(h) Other FAA AD Provisions
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, New York ACO
Branch, FAA, has the authority to approve
AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19. In
accordance with 14 CFR 39.19, send your
request to your principal inspector or
responsible Flight Standards Office, as
appropriate. If sending information directly
to the manager of the certification office,
send it to ATTN: Program Manager,
Continuing Operational Safety, FAA, New
York ACO Branch, 1600 Stewart Avenue,
Suite 410, Westbury, NY 11590; telephone
516–228–7300; fax 516–794–5531. Before
using any approved AMOC, notify your
appropriate principal inspector, or lacking a
principal inspector, the manager of the
responsible Flight Standards Office.
(2) Contacting the Manufacturer: For any
requirement in this AD to obtain instructions
from a manufacturer, the instructions must
be accomplished using a method approved
by the Manager, New York ACO Branch,
FAA; or Transport Canada Civil Aviation
(TCCA); or Bombardier, Inc.’s TCCA Design
Approval Organization (DAO). If approved by
the DAO, the approval must include the
DAO-authorized signature.
(i) Related Information
(1) Refer to Mandatory Continuing
Airworthiness Information (MCAI) TCCA AD
CF–2020–37, dated October 9, 2020, for
related information. This MCAI may be
found in the AD docket on the internet at
https://www.regulations.gov by searching for
and locating Docket No. FAA–2021–0030.
(2) For more information about this AD,
contact Siddeeq Bacchus, Aerospace
Engineer, Mechanical Systems and
Administrative Services Section, FAA, New
York ACO Branch, 1600 Stewart Avenue,
Suite 410, Westbury, NY 11590; telephone
516–228–7362; fax 516–794–5531; email 9avs-nyaco-cos@faa.gov.
(3) For service information identified in
this AD, contact Bombardier, Inc., 400 CoˆteVertu Road West, Dorval, Que´bec H4S 1Y9,
Canada; telephone 514–855–5000; fax 514–
855–7401; email thd.crj@
aero.bombardier.com; internet https://
www.bombardier.com. You may view this
service information at the FAA,
Airworthiness Products Section, Operational
Safety Branch, 2200 South 216th St., Des
Moines, WA. For information on the
availability of this material at the FAA, call
206–231–3195.
Issued on February 4, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2021–03585 Filed 2–23–21; 8:45 am]
BILLING CODE 4910–13–P
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Agencies
[Federal Register Volume 86, Number 35 (Wednesday, February 24, 2021)]
[Proposed Rules]
[Pages 11191-11193]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-03585]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2021-0030; Project Identifier MCAI-2020-01395-T]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc., Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for certain Bombardier, Inc., Model BD-700-1A10 airplanes. This
proposed AD was prompted by a report indicating that during
installation, a fuel pipe bracket assembly on the intermediate rib in
the center fuel tank was mislocated, resulting in an offset between the
fitting assembly and the refuel/defuel tube assembly. This proposed AD
would require modification of the fuel pipe bracket assembly, including
all related investigative actions and corrective actions, if necessary;
and performing an operational test of the refuel and defuel system. The
FAA is proposing this AD to address the unsafe condition on these
products.
DATES: The FAA must receive comments on this proposed AD by April 12,
2021.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, 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: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For service information identified in this NPRM, 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; email
[email protected]; internet https://www.bombardier.com. You
may view this service information at the FAA, Airworthiness Products
Section, Operational Safety Branch, 2200 South 216th St., Des Moines,
WA. For information on the availability of this material at the FAA,
call 206-231-3195.
Examining the AD Docket
You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-
0030; or in person at Docket Operations between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays. The AD docket contains
this NPRM, any comments received, and other information. The street
address for Docket Operations is listed above. Comments will be
available in the AD docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Siddeeq Bacchus, Aerospace Engineer,
Mechanical Systems and Administrative Services Section, FAA, New York
ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone 516-228-7362; fax 516-794-5531; email [email protected].
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under ADDRESSES. Include ``Docket No. FAA-2021-0030; Project Identifier
MCAI-2020-01395-T'' at the beginning of your comments. The most helpful
comments reference a specific portion of the proposal, explain the
reason for any
[[Page 11192]]
recommended change, and include supporting data. The FAA will consider
all comments received by the closing date and may amend the proposal
because of those comments.
Except for Confidential Business Information (CBI) as described in
the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to
https://www.regulations.gov, including any personal information you
provide. The agency will also post a report summarizing each
substantive verbal contact received about this proposed AD.
Confidential Business Information
CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this NPRM contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this NPRM, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this NPRM. Submissions containing CBI should be sent to
Siddeeq Bacchus, Aerospace Engineer, Mechanical Systems and
Administrative Services Section, FAA, New York ACO Branch, 1600 Stewart
Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7362; fax 516-
794-5531; email [email protected]. Any commentary that the FAA
receives which is not specifically designated as CBI will be placed in
the public docket for this rulemaking.
Discussion
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued TCCA AD CF-2020-37, dated October 9,
2020 (referred to after this as the Mandatory Continuing Airworthiness
Information, or the MCAI), to correct an unsafe condition for certain
Bombardier, Inc., Model BD-700-1A10 airplanes. You may examine the MCAI
in the AD docket on the internet at https://www.regulations.gov by
searching for and locating Docket No. FAA-2021-0030.
This proposed AD was prompted by a report indicating that during
installation, a fuel pipe bracket assembly on the intermediate rib in
the center fuel tank was mislocated, resulting in an offset between the
fitting assembly and the refuel/defuel tube assembly. The FAA is
proposing this AD to address the offset, which could cause a preload on
the fuel pipes and reduce their ability to absorb shock or vibration-
induced loads, making the tube and clamp more prone to stress corrosion
cracking. This could lead to failure of the coupling and the bracket
and p-clamp assembly, resulting in fuel leakage and loss of electrical
bonding between fuel pipes, and lightning-induced sparking that could
induce fuel ignition. See the MCAI for additional background
information.
Related Service Information Under 1 CFR Part 51
Bombardier has issued Service Bulletin 700-28-6006, dated June 1,
2020. This service information describes procedures for a modification
of the fuel pipe bracket assembly, including investigative actions (a
detailed visual inspection of the fuel pipe assembly for any damaged
paint, permanent deformation, corrosion, cracking, gouges, dents, or
deep scratches); installation of certain new parts; replacement of the
fuel pipe and fuel pipe bracket assembly, if necessary; and an
operational test of the refuel and defuel system. This service
information is reasonably available because the interested parties have
access to it through their normal course of business or by the means
identified in the ADDRESSES section.
FAA's Determination
This product has been approved by the aviation authority of another
country, and is approved for operation in the United States. Pursuant
to the FAA's bilateral agreement with the State of Design Authority,
the FAA has been notified of the unsafe condition described in the MCAI
and service information referenced above. The FAA is proposing this AD
because the FAA evaluated all the relevant information and determined
the unsafe condition described previously is likely to exist or develop
on other products of the same type design.
Proposed Requirements of This NPRM
This proposed AD would require accomplishing the actions specified
in the service information described previously.
Costs of Compliance
The FAA estimates that this proposed AD affects 51 airplanes of
U.S. registry. The FAA estimates the following costs to comply with
this proposed AD:
Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
10 work-hours x $85 per hour = $850.......................... $904 $1,754 $89,454
----------------------------------------------------------------------------------------------------------------
The FAA estimates the following costs to do any necessary on-
condition action that would be required based on the results of any
required actions. The FAA has no way of determining the number of
aircraft that might need this on-condition action:
Estimated Costs of On-Condition Actions
------------------------------------------------------------------------
Cost per
Labor cost Parts cost product
------------------------------------------------------------------------
3 work-hours x $85 per hour = $255...... $1,937 $2,192
------------------------------------------------------------------------
[[Page 11193]]
According to the manufacturer, some or all of the costs of this
proposed AD may be covered under warranty, thereby reducing the cost
impact on affected individuals. The FAA does not control warranty
coverage for affected individuals. As a result, the FAA has included
all known costs in the cost estimate.
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.
The FAA is 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
The FAA 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) Will not affect intrastate aviation in Alaska, 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.
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
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 airworthiness
directive:
Bombardier, Inc.: Docket No. FAA-2021-0030; Project Identifier MCAI-
2020-01395-T.
(a) Comments Due Date
The FAA must receive comments by April 12, 2021.
(b) Affected Airworthiness Directives (ADs)
None.
(c) Applicability
This AD applies to Bombardier, Inc., Model BD-700-1A10
airplanes, certificated in any category, serial numbers 9657 through
9844 inclusive.
(d) Subject
Air Transport Association (ATA) of America Code 28, Fuel.
(e) Reason
This AD was prompted by a report indicating that during
installation, a fuel pipe bracket assembly on the intermediate rib
in the center fuel tank was mislocated, resulting in an offset
between the fitting assembly and the refuel/defuel tube assembly.
The FAA is issuing this AD to address the offset, which could cause
a preload on the fuel pipes and reduce their ability to absorb shock
or vibration-induced loads, making the tube and clamp more prone to
stress corrosion cracking. This could lead to failure of the
coupling and the bracket and p-clamp assembly, resulting in fuel
leakage and loss of electrical bonding between fuel pipes, and
lightning-induced sparking that could induce fuel ignition.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Inspection and Corrective Action
Within 30 months after the effective date of this AD: Perform a
modification of the fuel pipe bracket assembly and refuel tube
assembly; do all related investigative actions and applicable
corrective actions; and perform an operational test of the refuel
and defuel system; in accordance with paragraphs 2.B. and 2.C. of
the Accomplishment Instructions of Bombardier Service Bulletin 700-
28-6006, dated June 1, 2020. All related investigative and
corrective actions must be done before further flight.
(h) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, New
York ACO Branch, FAA, has the authority to approve AMOCs for this
AD, if requested using the procedures found in 14 CFR 39.19. In
accordance with 14 CFR 39.19, send your request to your principal
inspector or responsible Flight Standards Office, as appropriate. If
sending information directly to the manager of the certification
office, send it to ATTN: Program Manager, Continuing Operational
Safety, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516-228-7300; fax 516-794-5531. Before
using any approved AMOC, notify your appropriate principal
inspector, or lacking a principal inspector, the manager of the
responsible Flight Standards Office.
(2) Contacting the Manufacturer: For any requirement in this AD
to obtain instructions from a manufacturer, the instructions must be
accomplished using a method approved by the Manager, New York ACO
Branch, FAA; or Transport Canada Civil Aviation (TCCA); or
Bombardier, Inc.'s TCCA Design Approval Organization (DAO). If
approved by the DAO, the approval must include the DAO-authorized
signature.
(i) Related Information
(1) Refer to Mandatory Continuing Airworthiness Information
(MCAI) TCCA AD CF-2020-37, dated October 9, 2020, for related
information. This MCAI may be found in the AD docket on the internet
at https://www.regulations.gov by searching for and locating Docket
No. FAA-2021-0030.
(2) For more information about this AD, contact Siddeeq Bacchus,
Aerospace Engineer, Mechanical Systems and Administrative Services
Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516-228-7362; fax 516-794-5531; email
[email protected].
(3) 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; email [email protected]; internet https://www.bombardier.com. You may view this service information at the
FAA, Airworthiness Products Section, Operational Safety Branch, 2200
South 216th St., Des Moines, WA. For information on the availability
of this material at the FAA, call 206-231-3195.
Issued on February 4, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2021-03585 Filed 2-23-21; 8:45 am]
BILLING CODE 4910-13-P