Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes, 67354-67359 [2022-24289]
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67354
Federal Register / Vol. 87, No. 215 / Tuesday, November 8, 2022 / Rules and Regulations
(k) Terminating Action
(3) An improved serviceable part is a
flexible hose having a part number as
specified in figure 1 to paragraph (g)(1) of
this AD.
(h) Retained Repetitive Inspections, With
Revised Service Information
This paragraph restates the requirements of
paragraph (h) of AD 2021–06–07, with
revised service information. Within 1,600
flight hours after April 20, 2021 (the effective
date of AD 2021–06–07) and thereafter at
intervals not to exceed 1,600 flight hours, do
a detailed inspection (including functional
testing) for leakage or damage of the CAOS
and lavatory A oxygen system in accordance
with the Accomplishment Instructions of
Elbe Flugzeugwerke GmbH Service Bulletin
EFW–SB–35–0001, dated March 8, 2019; Elbe
Flugzeugwerke GmbH Service Bulletin EFW–
SB–35–0002, dated September 2, 2019; Elbe
Flugzeugwerke GmbH Service Bulletin EFW–
SB–35–0001, Revision 01, dated July 3, 2020;
or Elbe Flugzeugwerke GmbH Service
Bulletin EFW–SB–35–0002, Revision 01,
dated June 22, 2020; as applicable.
(i) Retained Replacement, With Revised
Service Information and a New Replacement
Action Option
This paragraph restates the requirements of
paragraph (i) of AD 2021–06–07, with revised
service information and a new replacement
action option. If, during any inspection
required by paragraph (h) of this AD, any
leakage or damage (i.e., cracking) is found:
Before further flight, do the actions specified
in paragraph (i)(1) or (2) of this AD:
(1) Replace the affected part with a
serviceable part, as defined in paragraph
(g)(2) of this AD, in accordance with the
Accomplishment Instructions of Elbe
Flugzeugwerke GmbH Service Bulletin EFW–
SB–35–0001, dated March 8, 2019; Elbe
Flugzeugwerke GmbH Service Bulletin EFW–
SB–35–0002, dated September 2, 2019; Elbe
Flugzeugwerke GmbH Service Bulletin EFW–
SB–35–0001, Revision 01, dated July 3, 2020;
or Elbe Flugzeugwerke GmbH Service
Bulletin EFW–SB–35–0002, Revision 01,
dated June 22, 2020; as applicable.
(2) Replace each affected part with an
improved serviceable part, as defined in
paragraph (g)(3) of this AD, in accordance
with the Accomplishment Instructions of
Elbe Flugzeugwerke GmbH Service Bulletin
EFW–SB–35–0003, dated January 27, 2021;
or Elbe Flugzeugwerke GmbH Service
Bulletin EFW–SB–35–0006, dated June 9,
2021; as applicable.
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(j) New Requirement of This AD:
Modification
Unless already accomplished as specified
in paragraph (i) of this AD, within 42 months
after the effective date of this AD, modify the
airplane by replacing each affected part with
an improved serviceable part, as defined in
paragraph (g)(3) of this AD, in accordance
with the Accomplishment Instructions of
Elbe Flugzeugwerke GmbH Service Bulletin
EFW–SB–35–0003, dated January 27, 2021;
or Elbe Flugzeugwerke GmbH Service
Bulletin EFW–SB–35–0006, dated June 9,
2021; as applicable.
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(1) Replacement of an affected part with a
serviceable part, as specified in paragraph (i)
of this AD, does not terminate the repetitive
inspections required by paragraph (h) of this
AD.
(2) Modification of an airplane by
installing improved serviceable parts as
required by paragraph (j) of this AD, or as
specified in paragraph (i) of this AD, as
applicable, terminates the repetitive
inspections required by paragraph (h) of this
AD for that airplane.
(l) Parts Installation Prohibition
After modifying an airplane by replacing
each affected part with an improved
serviceable part as required by paragraph (j)
of this AD, or as specified in paragraph (i) of
this AD, as applicable, no person may install
an affected part on any airplane.
(m) Other FAA AD Provisions
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, 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 International Validation Branch, send
it to the attention of the person identified in
paragraph (n)(2) of this AD. Information may
be emailed to: 9-AVS-AIR-730-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 the
European Union Aviation Safety Agency
(EASA); or Airbus SAS’s EASA Design
Organization Approval (DOA). If approved by
the DOA, the approval must include the
DOA-authorized signature.
(2) You must use this service information
as applicable to do the actions required by
this AD, unless this AD specifies otherwise.
(3) The following service information was
approved for IBR on November 23, 2022.
(i) Elbe Flugzeugwerke GmbH Service
Bulletin EFW–SB–35–0001, Revision 01,
dated July 3, 2020.
(ii) Elbe Flugzeugwerke GmbH Service
Bulletin EFW–SB–35–0002, Revision 01,
dated June 22, 2020.
(iii) Elbe Flugzeugwerke GmbH Service
Bulletin EFW–SB–35–0003, dated January
27, 2021.
(iv) Elbe Flugzeugwerke GmbH Service
Bulletin EFW–SB–35–0006, dated June 9,
2021.
(4) The following service information was
approved for IBR on April 20, 2021 (86 FR
17512, April 5, 2021).
(i) Elbe Flugzeugwerke GmbH Service
Bulletin EFW–SB–35–0001, dated March 8,
2019.
(ii) Elbe Flugzeugwerke GmbH Service
Bulletin EFW–SB–35–0002, dated September
2, 2019.
(5) For service information identified in
this AD, contact Elbe Flugzeugwerke GmbH
Customer Support, Grenzstra+e 1, 01109
Dresden, Germany; phone: +49 351 8839
2749; fax: +49 351 8839 2125; email:
efw.techpub@efw.aero; website:
elbeflugzeugwerke.com/en/.
(6) 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.
(7) You may view this 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,
email fr.inspection@nara.gov, or go to:
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued on September 26, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2022–24307 Filed 11–7–22; 8:45 am]
BILLING CODE 4910–13–P
(n) Related Information
(1) Refer to EASA AD 2021–0173, dated
July 21, 2021, for related information. This
EASA AD may be found in the AD docket at
regulations.gov by searching for and locating
Docket No. FAA–2022–1247.
(2) For more information about this AD,
contact Elizabeth Dowling, Aerospace
Engineer, Mechanical Systems and
Administrative Services Section, FAA, New
York ACO Branch, 1600 Stewart Avenue,
Suite 410, Westbury, NY 11590; telephone
516–228–7300; email 9-avs-nyaco-cos@
faa.gov.
(o) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR
part 51.
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2022–0672; Project
Identifier MCAI–2020–01606–T; Amendment
39–22228; AD 2022–23–01]
RIN 2120–AA64
Airworthiness Directives; De Havilland
Aircraft of Canada Limited (Type
Certificate Previously Held by
Bombardier, Inc.) Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
AGENCY:
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Federal Register / Vol. 87, No. 215 / Tuesday, November 8, 2022 / Rules and Regulations
ACTION:
Final rule.
The FAA is superseding
Airworthiness Directive (AD) 2020–04–
20, which applied to certain De
Havilland Aircraft of Canada Limited
Model DHC–8–400 series airplanes. AD
2020–04–20 required repetitive
inspections of certain parts for
discrepancies that meet specified
criteria, and replacement as necessary;
repetitive inspections of certain parts for
damage and wear, and rework of parts;
and electrical bonding checks of certain
couplings. AD 2020–04–20 also required
revising the existing maintenance or
inspection program, as applicable, to
incorporate new or more restrictive
airworthiness limitations. For certain
airplanes, AD 2020–04–20 allowed a
modification that terminates the
repetitive inspections. This AD
continues to require the actions in AD
2020–04–20, revises the applicability by
adding airplanes, and requires, for
certain airplanes, the previously
optional rework and retrofit of certain
parts of the fuel system. Doing the
rework and retrofit terminates the
retained initial and repetitive
inspections in this AD. This AD was
prompted by reports of wear on fuel
couplings, bonding springs, and sleeves
as well as fuel tube end ferrules and fuel
component end ferrules, and by a
determination that a more robust
lightning ignition protection design is
necessary. The FAA is issuing this AD
to address the unsafe condition on these
products.
DATES: This AD is effective December
13, 2022.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of May 4, 2020 (85 FR 17473, March
30, 2020).
ADDRESSES:
AD Docket: You may examine the AD
docket at regulations.gov under Docket
No. FAA–2022–0672; 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 final rule, the mandatory
continuing airworthiness information
(MCAI), any comments received, and
other information. The address for
Docket Operations is U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE,
Washington, DC 20590.
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SUMMARY:
Material Incorporated by Reference
• For service information identified
in this final rule, contact De Havilland
Aircraft of Canada Limited, Dash 8
Series Customer Response Centre, 5800
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16:02 Nov 07, 2022
Jkt 259001
Explorer Drive, Mississauga, Ontario,
L4W 5K9, Canada; telephone North
America (toll-free): 855–310–1013,
Direct: 647–277–5820; email thd@
dehavilland.com; website
dehavilland.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. It is also available at
regulations.gov under Docket No. FAA–
2022–0672.
FOR FURTHER INFORMATION CONTACT:
Joseph Catanzaro, Aerospace Engineer,
Airframe and Propulsion Section, FAA,
New York ACO Branch, 1600 Stewart
Avenue, Suite 410, Westbury, NY
11590; telephone 516–228–7366; email
9-avs-nyaco-cos@faa.gov.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2020–04–20,
Amendment 39–19857 (85 FR 17473,
March 30, 2020) (AD 2020–04–20). AD
2020–04–20 applied to certain De
Havilland Aircraft of Canada Limited
Model DHC–8–400 series airplanes. AD
2020–04–20 required repetitive
inspections of certain parts for
discrepancies that meet specified
criteria, and replacement as necessary;
repetitive inspections of certain parts for
damage and wear, and rework of parts;
and electrical bonding checks of certain
couplings. AD 2020–04–20 also required
revising the existing maintenance or
inspection program, as applicable, to
incorporate new or more restrictive
airworthiness limitations. For certain
airplanes, AD 2020–04–20 allowed a
modification that terminated the
repetitive inspections. The FAA issued
AD 2020–04–20 to address wear on fuel
couplings, bonding springs, and sleeves
as well as fuel tube end ferrules and fuel
component end ferrules, which could
reduce the integrity of the electrical
bonding paths through the fuel line and
components, and ultimately lead to fuel
tank ignition in the event of a lightning
strike.
The NPRM published in the Federal
Register on June 9, 2022 (87 FR 35128).
The NPRM was prompted by AD CF–
2017–04R3, dated April 1, 2020, issued
by Transport Canada Civil Aviation
(TCCA), which is the aviation authority
for Canada (referred to after this as the
MCAI). The MCAI states that wear has
been detected on fuel couplings,
bonding springs, and sleeves as well as
fuel tube end ferrules and fuel
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67355
component end ferrules. The MCAI also
states that a more robust lightning
ignition protection design is necessary.
The MCAI states that such wear could
reduce the integrity of the electrical
bonding paths through the fuel line and
components, and ultimately lead to fuel
tank ignition in the event of a lightning
strike.
You may examine the MCAI in the
AD docket at regulations.gov under
Docket No. FAA–2022–0672.
In the NPRM, the FAA proposed to
continue to require the actions in AD
2020–04–20, revise the applicability by
adding airplanes, and require, for
certain airplanes, the previously
optional rework and retrofit of certain
parts of the fuel system.
The FAA issued a supplemental
notice of proposed rulemaking (SNPRM)
to amend 14 CFR part 39 to supersede
AD 2020–04–20. The SNPRM published
in the Federal Register on August 31,
2022 (87 FR 53424) (the SNPRM). The
SNPRM was prompted by the FAA’s
determination that the NPRM
inadvertently limited the proposed new
terminating rework and retrofit to
airplanes that had accomplished certain
service information. In addition, the
FAA determined that the optional
terminating action specified in AD
2020–04–20, and corresponding credit,
should be carried over to this AD. In the
SNPRM, the FAA proposed to continue
to require the actions in AD 2020–04–
20, revise the applicability by adding
airplanes, and require, for certain
airplanes, the previously optional
rework and retrofit of certain parts of
the fuel system. The FAA is issuing this
AD to address the unsafe condition on
these products.
Discussion of Final Airworthiness
Directive
Comments
The FAA received comments from the
Air Line Pilots Association,
International (ALPA) who supported the
SNPRM without change.
Conclusion
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 this State of
Design Authority, it has notified the
FAA of the unsafe condition described
in the MCAI referenced above. The FAA
reviewed the relevant data, considered
the comment received, and determined
that air safety requires adopting this AD
as proposed. Accordingly, the FAA is
issuing this AD to address the unsafe
condition on this product. Except for
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67356
Federal Register / Vol. 87, No. 215 / Tuesday, November 8, 2022 / Rules and Regulations
• Bombardier Service Bulletin 84–28–
20, Revision D, dated November 23,
2018.
• Bombardier Service Bulletin 84–28–
21, Revision C, dated July 13, 2018.
• Bombardier Service Bulletin 84–28–
26, Revision A, dated November 29,
2018.
• Q400 Dash 8 (Bombardier)
Temporary Revision ALI–0192, dated
April 24, 2018.
• Q400 Dash 8 (Bombardier)
Temporary Revision ALI–0193, dated
April 24, 2018.
minor editorial changes, this AD is
adopted as proposed in the SNPRM.
None of the changes will increase the
economic burden on any operator.
Related Service Information Under 1
CFR Part 51
This AD requires the following
service information, which the Director
of the Federal Register approved for
incorporation by reference as of May 4,
2020 (85 FR 17473, March 30, 2020).
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.
Costs of Compliance
The FAA estimates that this AD
affects 54 airplanes of U.S. registry.
The FAA estimates the following
costs to comply with this AD:
ESTIMATED COSTS FOR REQUIRED ACTIONS *
Action
Labor cost
Retained actions from AD 2020–04–20 ......
268 work-hours × $85 per hour =
$22,780.
Up to 1,747 work-hours × $85 per
hour = Up to $148,495.
New actions ................................................
Parts cost
Cost per product
Cost on U.S.
operators
$0
$22,780 ...................
$1,230,120.
87,385
Up to $235,880 .......
Up to $12,737,520.
* Table does not include estimated costs for revising the existing maintenance or inspection program.
The FAA has determined that revising
the existing maintenance or inspection
program takes an average of 90 workhours per operator, although the FAA
recognizes that this number may vary
from operator to operator. In the past,
the FAA has estimated that this action
takes 1 work-hour per airplane. Since
operators incorporate maintenance or
inspection program changes for their
affected fleet(s), the FAA has
determined that a per-operator estimate
is more accurate than a per-airplane
estimate. Therefore, the FAA estimates
the total cost per operator to be $7,650
(90 work-hours × $85 per work-hour).
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Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
section 106, describes the authority of
the FAA Administrator. Subtitle VII:
Aviation Programs, describes in more
detail the scope of the Agency’s
authority.
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.
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Regulatory Findings
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
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.
■
[Amended]
2. The FAA amends § 39.13 by:
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2022–23–01 De Havilland Aircraft of
Canada Limited (Type Certificate
previously held by Bombardier, Inc.):
Amendment 39–22228; Docket No.
FAA–2022–0672; Project Identifier
MCAI–2020–01606–T.
(a) Effective Date
This airworthiness directive (AD) is
effective December 13, 2022.
(b) Affected ADs
This AD replaces AD 2020–04–20,
Amendment 39–19857 (85 FR 17473, March
30, 2020) (AD 2020–04–20).
(c) Applicability
This AD applies to De Havilland Aircraft
of Canada Limited Model DHC–8–400, –401,
and –402 airplanes, certificated in any
category, manufacturer serial numbers 4001
and 4003 and subsequent.
(d) Subject
The Amendment
§ 39.13
a. Removing Airworthiness Directive
(AD) 2020–04–20, Amendment 39–
19857 (85 FR 17473, March 30, 2020);
and
■ b. Adding the following new AD:
■
The FAA 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 that this AD:
(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.
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Air Transport Association (ATA) of
America Code 28, Fuel.
(e) Reason
This AD was prompted by reports of wear
on fuel couplings, bonding springs, and
sleeves as well as fuel tube end ferrules and
fuel component end ferrules, and by a
determination that a more robust lightning
ignition protection design is necessary. The
FAA is issuing this AD to address such wear,
which could reduce the integrity of the
electrical bonding paths through the fuel line
and components, and ultimately lead to fuel
tank ignition in the event of a lightning
strike.
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Federal Register / Vol. 87, No. 215 / Tuesday, November 8, 2022 / Rules and Regulations
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
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(g) Retained Initial Inspection Compliance
Times, With New Terminating Action
This paragraph restates the requirements of
paragraph (g) of AD 2020–04–20, with new
terminating action. For airplanes having
serial numbers 4001 and 4003 through 4575
inclusive that, as of May 4, 2020 (the
effective date of AD 2020–04–20), have not
done the actions specified in Bombardier
Service Bulletin 84–28–21: At the applicable
times specified in paragraph (g)(1) or (2) of
this AD, do the actions specified in
paragraphs (h)(1) and (2) of this AD.
Accomplishing the terminating action
required by paragraph (p) of this AD
terminates the initial inspection required by
this paragraph.
(1) For all airplanes except those identified
in paragraph (g)(2) of this AD: Within 6,000
flight hours or 36 months, whichever occurs
first after May 4, 2020 (the effective date of
AD 2020–04–20).
(2) For airplanes with an original
airworthiness certificate or original export
certificate of airworthiness issued on or after
May 4, 2020 (the effective date of AD 2020–
04–20): Within 6,000 flight hours or 36
months, whichever occurs first after the date
of issuance of the original airworthiness
certificate or the date of issuance of the
original export certificate of airworthiness.
(h) Retained Repetitive Inspections and
Corrective Actions, With New Terminating
Action
This paragraph restates the requirements of
paragraph (h) of AD 2020–04–20, with new
terminating action. For airplanes having
serial numbers 4001 and 4003 through 4575
inclusive that, as of May 4, 2020 (the
effective date of AD 2020–04–20), have not
done the actions specified in Bombardier
Service Bulletin 84–28–21: At the applicable
times specified in paragraph (g)(1) or (2) of
this AD, do the actions specified in
paragraphs (h)(1) and (2) of this AD. Repeat
the actions thereafter at intervals not to
exceed 6,000 flight hours or 36 months,
whichever occurs first. Accomplishing the
terminating action required by paragraph (p)
of this AD terminates the repetitive
inspections required by this paragraph.
(1) Do a detailed inspection of the
clamshell coupling bonding wires, fuel
couplings, and associated sleeves for
discrepancies that meet specified criteria, as
identified in, and in accordance with,
paragraph 3.B., ‘‘Procedure,’’ of the
Accomplishment Instructions of Bombardier
Service Bulletin 84–28–20, Revision D, dated
November 23, 2018. If any conditions are
found meeting the criteria specified in
Bombardier Service Bulletin 84–28–20,
Revision D, dated November 23, 2018, before
further flight, replace affected parts with new
couplings and sleeves of the same part
number, in accordance with paragraph 3.B.,
‘‘Procedure,’’ of the Accomplishment
Instructions of Bombardier Bulletin 84–28–
20, Revision D, dated November 23, 2018.
(2) Do a detailed inspection of the fuel tube
end ferrules, fuel component end ferrules,
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16:02 Nov 07, 2022
Jkt 259001
and ferrule O-ring flanges for damage and
wear, and rework (repair, replace, or blend,
as applicable) the parts, in accordance with
paragraph 3.B., ‘‘Procedure,’’ of the
Accomplishment Instructions of Bombardier
Service Bulletin 84–28–20, Revision D, dated
November 23, 2018.
(i) Retained Optional Terminating Action for
Repetitive Inspections With No Changes
This paragraph restates the requirements of
paragraph (i) of AD 2020–04–20, with no
changes. For airplanes having serial numbers
4001 and 4003 through 4575 inclusive: Doing
a detailed inspection of the fuel tube end
ferrules, fuel component end ferrules, and
ferrule O-ring flanges for damage and wear,
and reworking (repair, replace, or blend, as
applicable) the parts; and doing a retrofit
(structural rework) of the fuel couplings,
isolators, and structural provisions, in
accordance with paragraph 3.B.,
‘‘Procedure,’’ of the Accomplishment
Instructions of Bombardier Service Bulletin
84–28–21, Revision C, dated July 13, 2018,
terminates the inspections specified in
paragraphs (h)(1) and (2) of this AD.
(j) Retained Electrical Bonding Checks/
Detailed Inspection, With No Changes
This paragraph restates the requirements of
paragraph (j) of AD 2020–04–20, with no
changes. For airplanes having serial numbers
4001, 4003 through 4489 inclusive, and 4491
through 4575 inclusive that, as of May 4,
2020 (the effective date of AD 2020–04–20),
have done the actions specified in
Bombardier Service Bulletin 84–28–21,
Revision A, dated September 29, 2017; and
airplanes having serial numbers 4576
through 4581 inclusive: Within 6,000 flight
hours or 36 months after May 4, 2020,
whichever occurs first, do the actions
specified in paragraph (j)(1) or (2) of this AD.
(1) Accomplish electrical bonding checks
of all threaded couplings on the inboard vent
lines in the left and right wings, in
accordance with paragraph 3.B.,
‘‘Procedure,’’ of the Accomplishment
Instructions of Bombardier Service Bulletin
84–28–26, Revision A, dated November 29,
2018.
(2) Do a detailed inspection of the fuel tube
end ferrules, fuel component end ferrules,
and ferrule O-ring flanges for damage and
wear, and rework (repair, replace, or blend,
as applicable) the parts; and a retrofit
(structural rework) of the fuel couplings,
isolators, and structural provisions; in
accordance with paragraph 3.B.,
‘‘Procedure,’’ of the Accomplishment
Instructions of Bombardier Service Bulletin
84–28–21, Revision C, dated July 13, 2018.
(k) Retained Revision of the Existing
Maintenance or Inspection Program, With
No Changes
This paragraph restates the requirements of
paragraph (k) of AD 2020–04–20, with no
changes. Within 30 days after May 4, 2020
(the effective date of AD 2020–04–20), revise
the existing maintenance or inspection
program, as applicable, to incorporate the
information specified in Q400 Dash 8
(Bombardier) Temporary Revision ALI–0192,
dated April 24, 2018; and Q400 Dash 8
(Bombardier) Temporary Revision ALI–0193,
PO 00000
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67357
dated April 24, 2018. Except as specified in
paragraph (l) of this AD, the initial
compliance time for doing the tasks in Q400
Dash 8 (Bombardier) Temporary Revision
ALI–0192, dated April 24, 2018, is at the time
specified in Q400 Dash 8 (Bombardier)
Temporary Revision ALI–0192, dated April
24, 2018, or within 30 days after May 4, 2020,
whichever occurs later.
(l) Retained Initial Compliance Time for
Task 284000–419, With No Changes
This paragraph restates the requirements of
paragraph (l) of AD 2020–04–20, with no
changes. The initial compliance time for task
284000–419 is at the time specified in
paragraph (l)(1) or (2) of this AD, as
applicable, or within 30 days after May 4,
2020 (the effective date of AD 2020–04–20),
whichever occurs later.
(1) For airplanes having serial numbers
4001 and 4003 through 4575 inclusive:
Within 18,000 flight hours or 108 months,
whichever occurs first, after the earliest date
of embodiment of Bombardier Service
Bulletin 84–28–21 on the airplane.
(2) For airplanes having serial numbers
4576 and subsequent: Within 18,000 flight
hours or 108 months, whichever occurs first,
from the date of issuance of the original
airworthiness certificate or original export
certificate of airworthiness.
(m) Retained No Alternative Actions,
Intervals, or Critical Design Configuration
Control Limitations (CDCCLs), With No
Changes
This paragraph restates the requirements of
paragraph (m) of AD 2020–04–20, with no
changes. After the existing maintenance or
inspection program has been revised as
required by paragraph (k) of this AD, no
alternative actions (e.g., inspections),
intervals, or CDCCLs may be used unless the
actions, intervals, and CDCCLs are approved
as an alternative method of compliance
(AMOC) in accordance with the procedures
specified in paragraph (r)(1) of this AD.
(n) Retained No Reporting Provisions, With
No Changes
This paragraph restates the provisions of
paragraph (n) of AD 2020–04–20, with no
changes. Although Bombardier Service
Bulletin 84–28–20, Revision D, dated
November 23, 2018, specifies to submit
certain information to the manufacturer, this
AD does not include that requirement.
(o) Retained Credit for Previous Actions,
With No Changes
(1) This paragraph restates the provisions
of paragraph (o) of AD 2020–04–20, with no
changes. This paragraph provides credit for
the actions required by paragraphs (h)(1) and
(2) of this AD, if those actions were
performed before May 4, 2020 (the effective
date of AD 2020–04–20), using the service
information specified in paragraph (o)(1)(i)
through (iii) of this AD.
(i) Bombardier Service Bulletin 84–28–20,
Revision A, dated December 14, 2016.
(ii) Bombardier Service Bulletin 84–28–20,
Revision B, dated February 13, 2017.
(iii) Bombardier Service Bulletin 84–28–20,
Revision C, dated April 28, 2017.
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(2) For the airplane having serial number
4164, this paragraph provides credit for the
initial inspections required by paragraphs
(h)(1) and (2) of this AD, if those actions were
performed before May 4, 2020 (the effective
date of AD 2020–04–20), using Bombardier
Service Bulletin 84–28–20, dated September
30, 2016.
(3) This paragraph provides credit for the
actions specified in paragraph (i) of this AD
if those actions were performed before May
4, 2020 (the effective date of AD 2020–04–
20), using the service information specified
in paragraph (o)(3)(i) through (iii) of this AD.
(i) Bombardier Service Bulletin 84–28–21,
dated August 31, 2017.
(ii) Bombardier Service Bulletin 84–28–21,
Revision A, dated September 29, 2017.
(iii) Bombardier Service Bulletin 84–28–21,
Revision B, dated June 8, 2018.
(4) This paragraph provides credit for the
actions required by paragraph (j)(1) of this
AD if those actions were performed before
May 4, 2020 (the effective date of AD 2020–
04–20), using Bombardier Service Bulletin
84–28–26, dated August 14, 2018.
(5) This paragraph provides credit for the
actions required by paragraph (j)(2) of this
AD if those actions were performed before
May 4, 2020 (the effective date of AD 2020–
04–20), using Bombardier Service Bulletin
84–28–21, Revision B, dated June 8, 2018.
(6) For airplanes having serial numbers
4001, 4003 through 4489 inclusive, and 4491
through 4575 inclusive, and that are post
Bombardier Service Bulletin 84–28–21,
Revision A, dated September 29, 2017: This
paragraph provides credit for the actions
required by paragraph (j) of this AD if those
actions were performed before May 4, 2020
(the effective date of AD 2020–04–20), using
the service information specified in
paragraph (o)(6)(i) or (ii) of this AD.
(i) Bombardier Modification Summary
Package (ModSum) IS4Q2800032, dated
February 1, 2018.
(ii) Any airworthiness limitation change
request (ACR) specified in figure 1 to
paragraph (o)(6)(ii) of this AD.
Figure 1 to paragraph (o)(6)(ii)-ACRs
lotter on DSK11XQN23PROD with RULES1
(p) New Rework and Retrofit
For airplanes having serial numbers 4001
and 4003 through 4575 inclusive: At the
applicable time specified in paragraph (p)(1)
or (2) of this AD, rework (repair, replace, or
blend, as applicable) the parts (fuel tube end
ferrules, fuel component end ferrules, and
ferrule O-ring flanges); and do a retrofit
(structural rework) of the fuel couplings,
isolators, and structural provisions; in
accordance with Part B of paragraph 3.B.,
‘‘Procedure,’’ of the Accomplishment
Instructions of Bombardier Service Bulletin
84–28–21, Revision C, dated July 13, 2018.
Accomplishing these actions terminates the
initial and repetitive inspections required by
paragraphs (g) and (h) of this AD.
(1) For airplanes with greater than 20,000
total flight hours as of the effective date of
this AD: Do the actions within 6,000 flight
hours or 36 months after the effective date of
this AD, whichever occurs first.
(2) For airplanes with less than or equal to
20,000 total flight hours as of the effective
VerDate Sep<11>2014
16:02 Nov 07, 2022
Jkt 259001
Dated
400-072
January 24, 2018
400-073
January 23, 2018
400-074
January 24, 2018
400-077
February 27, 2018
400-078
March 21, 2018
400-079
April 18, 2018
400-080
April 30, 2018
400-081
May 4, 2018
400-082
May 4, 2018
400-083
June 4, 2018
400-084
May 18, 2018
date of this AD: Do the actions within 8,000
flight hours or 48 months after the effective
date of this AD, whichever occurs first.
(q) New Credit for Previous Actions
This paragraph provides credit for the
actions required by paragraph (p) of this AD,
if those actions were performed before the
effective date of this AD using the service
information specified in paragraph (q)(1), (2),
or (3) of this AD.
(1) Bombardier Service Bulletin 84–28–21,
dated August 31, 2017.
(2) Bombardier Service Bulletin 84–28–21,
Revision A, dated September 29, 2017.
(3) Bombardier Service Bulletin 84–28–21,
Revision B, dated June 8, 2018.
(r) Additional 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
PO 00000
Frm 00008
Fmt 4700
Sfmt 4700
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 New York ACO Branch,
mail it to ATTN: Program Manager,
Continuing Operational Safety, at the address
identified in paragraph (s)(2) of this AD or
email to: 9-avs-nyaco-cos@faa.gov. If mailing
information, also submit information by
email. 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 De Havilland Aircraft of Canada
Limited’s TCCA Design Approval
Organization (DAO). If approved by the DAO,
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the approval must include the DAOauthorized signature.
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
(s) Additional Information
(1) Refer to TCCA AD CF–2017–04R3,
dated April 1, 2020, for related information.
This TCCA AD may be found in the AD
docket at regulations.gov under Docket No.
FAA–2022–0672.
(2) For more information about this AD,
contact Joseph Catanzaro, Aerospace
Engineer, Airframe and Propulsion Section,
FAA, New York ACO Branch, 1600 Stewart
Avenue, Suite 410, Westbury, NY 11590;
telephone 516–228–7366; email 9-avs-nyacocos@faa.gov.
(3) Service information identified in this
AD that is not incorporated by reference is
available at the addresses specified in
paragraphs (t)(4) and (5) of this AD.
(t) Material Incorporated by Reference
lotter on DSK11XQN23PROD with RULES1
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR
part 51.
(2) You must use this service information
as applicable to do the actions required by
this AD, unless this AD specifies otherwise.
(3) The following service information was
approved for IBR on May 4, 2020 (85 FR
17473, March 30, 2020).
(i) Bombardier Service Bulletin 84–28–20,
Revision D, dated November 23, 2018.
(ii) Bombardier Service Bulletin 84–28–21,
Revision C, dated July 13, 2018.
(iii) Bombardier Service Bulletin 84–28–26,
Revision A, dated November 29, 2018.
(iv) Bombardier Q400 Dash 8 (Bombardier)
Temporary Revision ALI–0192, dated April
24, 2018.
(v) Q400 Dash 8 (Bombardier) Temporary
Revision ALI–0193, dated April 24, 2018.
(4) For service information identified in
this AD, contact De Havilland Aircraft of
Canada Limited, Dash 8 Series Customer
Response Centre, 5800 Explorer Drive,
Mississauga, Ontario, L4W 5K9, Canada;
telephone North America (toll-free): 855–
310–1013, Direct: 647–277–5820; email thd@
dehavilland.com; website dehavilland.com.
(5) 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.
(6) You may view this 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,
email fr.inspection@nara.gov, or go to:
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued on October 25, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2022–24289 Filed 11–7–22; 8:45 am]
BILLING CODE 4910–13–P
VerDate Sep<11>2014
16:02 Nov 07, 2022
Jkt 259001
14 CFR Part 39
[Docket No. FAA–2022–1164; Project
Identifier MCAI–2021–01379–T; Amendment
39–22186; AD 2022–20–02]
RIN 2120–AA64
Airworthiness Directives; Airbus SAS
Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule; request for
comments.
AGENCY:
The FAA is adopting a new
airworthiness directive (AD) for all
Airbus SAS Model A350–1041
airplanes. This AD was prompted by a
potential interference between the ram
air turbine (RAT) blade tip and the belly
fairing (BF) RAT inboard door. This AD
requires replacing the BF inboard RAT
door and BF adjacent panels, and
prohibits the installation of affected
parts, as specified in a European Union
Aviation Safety Agency (EASA), which
is incorporated by reference. The FAA
is issuing this AD to address the unsafe
condition on these products.
DATES: This AD becomes effective
November 23, 2022.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of November 23, 2022.
The FAA must receive comments on
this AD by December 23, 2022.
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
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.
AD Docket: You may examine the AD
docket at regulations.gov under Docket
No. FAA–2022–1164; 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 AD, the mandatory
continuing airworthiness information
(MCAI), any comments received, and
other information. The street address for
Docket Operations is listed above.
SUMMARY:
PO 00000
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67359
Material Incorporated by Reference:
• For material incorporated by
reference (IBR) in this AD, contact
EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; telephone +49 221
8999 000; email ADs@easa.europa.eu;
website easa.europa.eu. You may find
this material on the EASA website at
ad.easa.europa.eu.
• 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.
FOR FURTHER INFORMATION CONTACT: Dan
Rodina, Aerospace Engineer, Large
Aircraft Section, International
Validation Branch, FAA, 2200 South
216th Street, Des Moines, WA 98198;
telephone 206–231–3225; email
dan.rodina@faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any
written data, views, or arguments about
this final rule. Send your comments to
an address listed under ADDRESSES.
Include ‘‘Docket No. FAA–2022–1164;
Project Identifier MCAI–2021–01379–T’’
at the beginning of your comments. The
most helpful comments reference a
specific portion of the final rule, explain
the reason for any recommended
change, and include supporting data.
The FAA will consider all comments
received by the closing date and may
amend this final rule 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
regulations.gov, including any personal
information you provide. The agency
will also post a report summarizing each
substantive verbal contact received
about this final rule.
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 AD 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 AD,
it is important that you clearly designate
the submitted comments as CBI. Please
mark each page of your submission
E:\FR\FM\08NOR1.SGM
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]]>Agencies
[Federal Register Volume 87, Number 215 (Tuesday, November 8, 2022)]
[Rules and Regulations]
[Pages 67354-67359]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-24289]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-0672; Project Identifier MCAI-2020-01606-T;
Amendment 39-22228; AD 2022-23-01]
RIN 2120-AA64
Airworthiness Directives; De Havilland Aircraft of Canada Limited
(Type Certificate Previously Held by Bombardier, Inc.) Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
[[Page 67355]]
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2020-04-
20, which applied to certain De Havilland Aircraft of Canada Limited
Model DHC-8-400 series airplanes. AD 2020-04-20 required repetitive
inspections of certain parts for discrepancies that meet specified
criteria, and replacement as necessary; repetitive inspections of
certain parts for damage and wear, and rework of parts; and electrical
bonding checks of certain couplings. AD 2020-04-20 also required
revising the existing maintenance or inspection program, as applicable,
to incorporate new or more restrictive airworthiness limitations. For
certain airplanes, AD 2020-04-20 allowed a modification that terminates
the repetitive inspections. This AD continues to require the actions in
AD 2020-04-20, revises the applicability by adding airplanes, and
requires, for certain airplanes, the previously optional rework and
retrofit of certain parts of the fuel system. Doing the rework and
retrofit terminates the retained initial and repetitive inspections in
this AD. This AD was prompted by reports of wear on fuel couplings,
bonding springs, and sleeves as well as fuel tube end ferrules and fuel
component end ferrules, and by a determination that a more robust
lightning ignition protection design is necessary. The FAA is issuing
this AD to address the unsafe condition on these products.
DATES: This AD is effective December 13, 2022.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of May 4, 2020
(85 FR 17473, March 30, 2020).
ADDRESSES:
AD Docket: You may examine the AD docket at regulations.gov under
Docket No. FAA-2022-0672; 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 final rule, the mandatory continuing airworthiness
information (MCAI), any comments received, and other information. The
address for Docket Operations is U.S. Department of Transportation,
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200
New Jersey Avenue SE, Washington, DC 20590.
Material Incorporated by Reference
For service information identified in this final rule,
contact De Havilland Aircraft of Canada Limited, Dash 8 Series Customer
Response Centre, 5800 Explorer Drive, Mississauga, Ontario, L4W 5K9,
Canada; telephone North America (toll-free): 855-310-1013, Direct: 647-
277-5820; email dehavilland.com">[email protected]dehavilland.com; website dehavilland.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. It is also available at
regulations.gov under Docket No. FAA-2022-0672.
FOR FURTHER INFORMATION CONTACT: Joseph Catanzaro, Aerospace Engineer,
Airframe and Propulsion Section, FAA, New York ACO Branch, 1600 Stewart
Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7366; email [email protected].
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to supersede AD 2020-04-20, Amendment 39-19857 (85 FR
17473, March 30, 2020) (AD 2020-04-20). AD 2020-04-20 applied to
certain De Havilland Aircraft of Canada Limited Model DHC-8-400 series
airplanes. AD 2020-04-20 required repetitive inspections of certain
parts for discrepancies that meet specified criteria, and replacement
as necessary; repetitive inspections of certain parts for damage and
wear, and rework of parts; and electrical bonding checks of certain
couplings. AD 2020-04-20 also required revising the existing
maintenance or inspection program, as applicable, to incorporate new or
more restrictive airworthiness limitations. For certain airplanes, AD
2020-04-20 allowed a modification that terminated the repetitive
inspections. The FAA issued AD 2020-04-20 to address wear on fuel
couplings, bonding springs, and sleeves as well as fuel tube end
ferrules and fuel component end ferrules, which could reduce the
integrity of the electrical bonding paths through the fuel line and
components, and ultimately lead to fuel tank ignition in the event of a
lightning strike.
The NPRM published in the Federal Register on June 9, 2022 (87 FR
35128). The NPRM was prompted by AD CF-2017-04R3, dated April 1, 2020,
issued by Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada (referred to after this as the MCAI). The MCAI
states that wear has been detected on fuel couplings, bonding springs,
and sleeves as well as fuel tube end ferrules and fuel component end
ferrules. The MCAI also states that a more robust lightning ignition
protection design is necessary. The MCAI states that such wear could
reduce the integrity of the electrical bonding paths through the fuel
line and components, and ultimately lead to fuel tank ignition in the
event of a lightning strike.
You may examine the MCAI in the AD docket at regulations.gov under
Docket No. FAA-2022-0672.
In the NPRM, the FAA proposed to continue to require the actions in
AD 2020-04-20, revise the applicability by adding airplanes, and
require, for certain airplanes, the previously optional rework and
retrofit of certain parts of the fuel system.
The FAA issued a supplemental notice of proposed rulemaking (SNPRM)
to amend 14 CFR part 39 to supersede AD 2020-04-20. The SNPRM published
in the Federal Register on August 31, 2022 (87 FR 53424) (the SNPRM).
The SNPRM was prompted by the FAA's determination that the NPRM
inadvertently limited the proposed new terminating rework and retrofit
to airplanes that had accomplished certain service information. In
addition, the FAA determined that the optional terminating action
specified in AD 2020-04-20, and corresponding credit, should be carried
over to this AD. In the SNPRM, the FAA proposed to continue to require
the actions in AD 2020-04-20, revise the applicability by adding
airplanes, and require, for certain airplanes, the previously optional
rework and retrofit of certain parts of the fuel system. The FAA is
issuing this AD to address the unsafe condition on these products.
Discussion of Final Airworthiness Directive
Comments
The FAA received comments from the Air Line Pilots Association,
International (ALPA) who supported the SNPRM without change.
Conclusion
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 this State of Design Authority, it
has notified the FAA of the unsafe condition described in the MCAI
referenced above. The FAA reviewed the relevant data, considered the
comment received, and determined that air safety requires adopting this
AD as proposed. Accordingly, the FAA is issuing this AD to address the
unsafe condition on this product. Except for
[[Page 67356]]
minor editorial changes, this AD is adopted as proposed in the SNPRM.
None of the changes will increase the economic burden on any operator.
Related Service Information Under 1 CFR Part 51
This AD requires the following service information, which the
Director of the Federal Register approved for incorporation by
reference as of May 4, 2020 (85 FR 17473, March 30, 2020).
Bombardier Service Bulletin 84-28-20, Revision D, dated
November 23, 2018.
Bombardier Service Bulletin 84-28-21, Revision C, dated
July 13, 2018.
Bombardier Service Bulletin 84-28-26, Revision A, dated
November 29, 2018.
Q400 Dash 8 (Bombardier) Temporary Revision ALI-0192,
dated April 24, 2018.
Q400 Dash 8 (Bombardier) Temporary Revision ALI-0193,
dated April 24, 2018.
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.
Costs of Compliance
The FAA estimates that this AD affects 54 airplanes of U.S.
registry.
The FAA estimates the following costs to comply with this AD:
Estimated Costs for Required Actions *
----------------------------------------------------------------------------------------------------------------
Cost on U.S.
Action Labor cost Parts cost Cost per product operators
----------------------------------------------------------------------------------------------------------------
Retained actions from AD 2020-04- 268 work-hours x $85 $0 $22,780............ $1,230,120.
20. per hour = $22,780.
New actions..................... Up to 1,747 87,385 Up to $235,880..... Up to $12,737,520.
work[dash]hours x
$85 per hour = Up to
$148,495.
----------------------------------------------------------------------------------------------------------------
* Table does not include estimated costs for revising the existing maintenance or inspection program.
The FAA has determined that revising the existing maintenance or
inspection program takes an average of 90 work-hours per operator,
although the FAA recognizes that this number may vary from operator to
operator. In the past, the FAA has estimated that this action takes 1
work-hour per airplane. Since operators incorporate maintenance or
inspection program changes for their affected fleet(s), the FAA has
determined that a per-operator estimate is more accurate than a per-
airplane estimate. Therefore, the FAA estimates the total cost per
operator to be $7,650 (90 work-hours x $85 per work-hour).
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 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 that this AD:
(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 Amendment
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:
0
a. Removing Airworthiness Directive (AD) 2020-04-20, Amendment 39-19857
(85 FR 17473, March 30, 2020); and
0
b. Adding the following new AD:
2022-23-01 De Havilland Aircraft of Canada Limited (Type Certificate
previously held by Bombardier, Inc.): Amendment 39-22228; Docket No.
FAA-2022-0672; Project Identifier MCAI-2020-01606-T.
(a) Effective Date
This airworthiness directive (AD) is effective December 13,
2022.
(b) Affected ADs
This AD replaces AD 2020-04-20, Amendment 39-19857 (85 FR 17473,
March 30, 2020) (AD 2020-04-20).
(c) Applicability
This AD applies to De Havilland Aircraft of Canada Limited Model
DHC-8-400, -401, and -402 airplanes, certificated in any category,
manufacturer serial numbers 4001 and 4003 and subsequent.
(d) Subject
Air Transport Association (ATA) of America Code 28, Fuel.
(e) Reason
This AD was prompted by reports of wear on fuel couplings,
bonding springs, and sleeves as well as fuel tube end ferrules and
fuel component end ferrules, and by a determination that a more
robust lightning ignition protection design is necessary. The FAA is
issuing this AD to address such wear, which could reduce the
integrity of the electrical bonding paths through the fuel line and
components, and ultimately lead to fuel tank ignition in the event
of a lightning strike.
[[Page 67357]]
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Retained Initial Inspection Compliance Times, With New Terminating
Action
This paragraph restates the requirements of paragraph (g) of AD
2020-04-20, with new terminating action. For airplanes having serial
numbers 4001 and 4003 through 4575 inclusive that, as of May 4, 2020
(the effective date of AD 2020-04-20), have not done the actions
specified in Bombardier Service Bulletin 84-28-21: At the applicable
times specified in paragraph (g)(1) or (2) of this AD, do the
actions specified in paragraphs (h)(1) and (2) of this AD.
Accomplishing the terminating action required by paragraph (p) of
this AD terminates the initial inspection required by this
paragraph.
(1) For all airplanes except those identified in paragraph
(g)(2) of this AD: Within 6,000 flight hours or 36 months, whichever
occurs first after May 4, 2020 (the effective date of AD 2020-04-
20).
(2) For airplanes with an original airworthiness certificate or
original export certificate of airworthiness issued on or after May
4, 2020 (the effective date of AD 2020-04-20): Within 6,000 flight
hours or 36 months, whichever occurs first after the date of
issuance of the original airworthiness certificate or the date of
issuance of the original export certificate of airworthiness.
(h) Retained Repetitive Inspections and Corrective Actions, With New
Terminating Action
This paragraph restates the requirements of paragraph (h) of AD
2020-04-20, with new terminating action. For airplanes having serial
numbers 4001 and 4003 through 4575 inclusive that, as of May 4, 2020
(the effective date of AD 2020-04-20), have not done the actions
specified in Bombardier Service Bulletin 84-28-21: At the applicable
times specified in paragraph (g)(1) or (2) of this AD, do the
actions specified in paragraphs (h)(1) and (2) of this AD. Repeat
the actions thereafter at intervals not to exceed 6,000 flight hours
or 36 months, whichever occurs first. Accomplishing the terminating
action required by paragraph (p) of this AD terminates the
repetitive inspections required by this paragraph.
(1) Do a detailed inspection of the clamshell coupling bonding
wires, fuel couplings, and associated sleeves for discrepancies that
meet specified criteria, as identified in, and in accordance with,
paragraph 3.B., ``Procedure,'' of the Accomplishment Instructions of
Bombardier Service Bulletin 84-28-20, Revision D, dated November 23,
2018. If any conditions are found meeting the criteria specified in
Bombardier Service Bulletin 84-28-20, Revision D, dated November 23,
2018, before further flight, replace affected parts with new
couplings and sleeves of the same part number, in accordance with
paragraph 3.B., ``Procedure,'' of the Accomplishment Instructions of
Bombardier Bulletin 84-28-20, Revision D, dated November 23, 2018.
(2) Do a detailed inspection of the fuel tube end ferrules, fuel
component end ferrules, and ferrule O-ring flanges for damage and
wear, and rework (repair, replace, or blend, as applicable) the
parts, in accordance with paragraph 3.B., ``Procedure,'' of the
Accomplishment Instructions of Bombardier Service Bulletin 84-28-20,
Revision D, dated November 23, 2018.
(i) Retained Optional Terminating Action for Repetitive Inspections
With No Changes
This paragraph restates the requirements of paragraph (i) of AD
2020-04-20, with no changes. For airplanes having serial numbers
4001 and 4003 through 4575 inclusive: Doing a detailed inspection of
the fuel tube end ferrules, fuel component end ferrules, and ferrule
O-ring flanges for damage and wear, and reworking (repair, replace,
or blend, as applicable) the parts; and doing a retrofit (structural
rework) of the fuel couplings, isolators, and structural provisions,
in accordance with paragraph 3.B., ``Procedure,'' of the
Accomplishment Instructions of Bombardier Service Bulletin 84-28-21,
Revision C, dated July 13, 2018, terminates the inspections
specified in paragraphs (h)(1) and (2) of this AD.
(j) Retained Electrical Bonding Checks/Detailed Inspection, With No
Changes
This paragraph restates the requirements of paragraph (j) of AD
2020-04-20, with no changes. For airplanes having serial numbers
4001, 4003 through 4489 inclusive, and 4491 through 4575 inclusive
that, as of May 4, 2020 (the effective date of AD 2020-04-20), have
done the actions specified in Bombardier Service Bulletin 84-28-21,
Revision A, dated September 29, 2017; and airplanes having serial
numbers 4576 through 4581 inclusive: Within 6,000 flight hours or 36
months after May 4, 2020, whichever occurs first, do the actions
specified in paragraph (j)(1) or (2) of this AD.
(1) Accomplish electrical bonding checks of all threaded
couplings on the inboard vent lines in the left and right wings, in
accordance with paragraph 3.B., ``Procedure,'' of the Accomplishment
Instructions of Bombardier Service Bulletin 84-28-26, Revision A,
dated November 29, 2018.
(2) Do a detailed inspection of the fuel tube end ferrules, fuel
component end ferrules, and ferrule O-ring flanges for damage and
wear, and rework (repair, replace, or blend, as applicable) the
parts; and a retrofit (structural rework) of the fuel couplings,
isolators, and structural provisions; in accordance with paragraph
3.B., ``Procedure,'' of the Accomplishment Instructions of
Bombardier Service Bulletin 84-28-21, Revision C, dated July 13,
2018.
(k) Retained Revision of the Existing Maintenance or Inspection
Program, With No Changes
This paragraph restates the requirements of paragraph (k) of AD
2020-04-20, with no changes. Within 30 days after May 4, 2020 (the
effective date of AD 2020-04-20), revise the existing maintenance or
inspection program, as applicable, to incorporate the information
specified in Q400 Dash 8 (Bombardier) Temporary Revision ALI-0192,
dated April 24, 2018; and Q400 Dash 8 (Bombardier) Temporary
Revision ALI-0193, dated April 24, 2018. Except as specified in
paragraph (l) of this AD, the initial compliance time for doing the
tasks in Q400 Dash 8 (Bombardier) Temporary Revision ALI-0192, dated
April 24, 2018, is at the time specified in Q400 Dash 8 (Bombardier)
Temporary Revision ALI-0192, dated April 24, 2018, or within 30 days
after May 4, 2020, whichever occurs later.
(l) Retained Initial Compliance Time for Task 284000-419, With No
Changes
This paragraph restates the requirements of paragraph (l) of AD
2020-04-20, with no changes. The initial compliance time for task
284000-419 is at the time specified in paragraph (l)(1) or (2) of
this AD, as applicable, or within 30 days after May 4, 2020 (the
effective date of AD 2020-04-20), whichever occurs later.
(1) For airplanes having serial numbers 4001 and 4003 through
4575 inclusive: Within 18,000 flight hours or 108 months, whichever
occurs first, after the earliest date of embodiment of Bombardier
Service Bulletin 84-28-21 on the airplane.
(2) For airplanes having serial numbers 4576 and subsequent:
Within 18,000 flight hours or 108 months, whichever occurs first,
from the date of issuance of the original airworthiness certificate
or original export certificate of airworthiness.
(m) Retained No Alternative Actions, Intervals, or Critical Design
Configuration Control Limitations (CDCCLs), With No Changes
This paragraph restates the requirements of paragraph (m) of AD
2020-04-20, with no changes. After the existing maintenance or
inspection program has been revised as required by paragraph (k) of
this AD, no alternative actions (e.g., inspections), intervals, or
CDCCLs may be used unless the actions, intervals, and CDCCLs are
approved as an alternative method of compliance (AMOC) in accordance
with the procedures specified in paragraph (r)(1) of this AD.
(n) Retained No Reporting Provisions, With No Changes
This paragraph restates the provisions of paragraph (n) of AD
2020-04-20, with no changes. Although Bombardier Service Bulletin
84-28-20, Revision D, dated November 23, 2018, specifies to submit
certain information to the manufacturer, this AD does not include
that requirement.
(o) Retained Credit for Previous Actions, With No Changes
(1) This paragraph restates the provisions of paragraph (o) of
AD 2020-04-20, with no changes. This paragraph provides credit for
the actions required by paragraphs (h)(1) and (2) of this AD, if
those actions were performed before May 4, 2020 (the effective date
of AD 2020-04-20), using the service information specified in
paragraph (o)(1)(i) through (iii) of this AD.
(i) Bombardier Service Bulletin 84-28-20, Revision A, dated
December 14, 2016.
(ii) Bombardier Service Bulletin 84-28-20, Revision B, dated
February 13, 2017.
(iii) Bombardier Service Bulletin 84-28-20, Revision C, dated
April 28, 2017.
[[Page 67358]]
(2) For the airplane having serial number 4164, this paragraph
provides credit for the initial inspections required by paragraphs
(h)(1) and (2) of this AD, if those actions were performed before
May 4, 2020 (the effective date of AD 2020-04-20), using Bombardier
Service Bulletin 84-28-20, dated September 30, 2016.
(3) This paragraph provides credit for the actions specified in
paragraph (i) of this AD if those actions were performed before May
4, 2020 (the effective date of AD 2020-04-20), using the service
information specified in paragraph (o)(3)(i) through (iii) of this
AD.
(i) Bombardier Service Bulletin 84-28-21, dated August 31, 2017.
(ii) Bombardier Service Bulletin 84-28-21, Revision A, dated
September 29, 2017.
(iii) Bombardier Service Bulletin 84-28-21, Revision B, dated
June 8, 2018.
(4) This paragraph provides credit for the actions required by
paragraph (j)(1) of this AD if those actions were performed before
May 4, 2020 (the effective date of AD 2020-04-20), using Bombardier
Service Bulletin 84-28-26, dated August 14, 2018.
(5) This paragraph provides credit for the actions required by
paragraph (j)(2) of this AD if those actions were performed before
May 4, 2020 (the effective date of AD 2020-04-20), using Bombardier
Service Bulletin 84-28-21, Revision B, dated June 8, 2018.
(6) For airplanes having serial numbers 4001, 4003 through 4489
inclusive, and 4491 through 4575 inclusive, and that are post
Bombardier Service Bulletin 84-28-21, Revision A, dated September
29, 2017: This paragraph provides credit for the actions required by
paragraph (j) of this AD if those actions were performed before May
4, 2020 (the effective date of AD 2020-04-20), using the service
information specified in paragraph (o)(6)(i) or (ii) of this AD.
(i) Bombardier Modification Summary Package (ModSum)
IS4Q2800032, dated February 1, 2018.
(ii) Any airworthiness limitation change request (ACR) specified
in figure 1 to paragraph (o)(6)(ii) of this AD.
[GRAPHIC] [TIFF OMITTED] TR08NO22.000
(p) New Rework and Retrofit
For airplanes having serial numbers 4001 and 4003 through 4575
inclusive: At the applicable time specified in paragraph (p)(1) or
(2) of this AD, rework (repair, replace, or blend, as applicable)
the parts (fuel tube end ferrules, fuel component end ferrules, and
ferrule O-ring flanges); and do a retrofit (structural rework) of
the fuel couplings, isolators, and structural provisions; in
accordance with Part B of paragraph 3.B., ``Procedure,'' of the
Accomplishment Instructions of Bombardier Service Bulletin 84-28-21,
Revision C, dated July 13, 2018. Accomplishing these actions
terminates the initial and repetitive inspections required by
paragraphs (g) and (h) of this AD.
(1) For airplanes with greater than 20,000 total flight hours as
of the effective date of this AD: Do the actions within 6,000 flight
hours or 36 months after the effective date of this AD, whichever
occurs first.
(2) For airplanes with less than or equal to 20,000 total flight
hours as of the effective date of this AD: Do the actions within
8,000 flight hours or 48 months after the effective date of this AD,
whichever occurs first.
(q) New Credit for Previous Actions
This paragraph provides credit for the actions required by
paragraph (p) of this AD, if those actions were performed before the
effective date of this AD using the service information specified in
paragraph (q)(1), (2), or (3) of this AD.
(1) Bombardier Service Bulletin 84-28-21, dated August 31, 2017.
(2) Bombardier Service Bulletin 84-28-21, Revision A, dated
September 29, 2017.
(3) Bombardier Service Bulletin 84-28-21, Revision B, dated June
8, 2018.
(r) Additional 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 New York ACO
Branch, mail it to ATTN: Program Manager, Continuing Operational
Safety, at the address identified in paragraph (s)(2) of this AD or
email to: [email protected]. If mailing information, also
submit information by email. 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 De
Havilland Aircraft of Canada Limited's TCCA Design Approval
Organization (DAO). If approved by the DAO,
[[Page 67359]]
the approval must include the DAO-authorized signature.
(s) Additional Information
(1) Refer to TCCA AD CF-2017-04R3, dated April 1, 2020, for
related information. This TCCA AD may be found in the AD docket at
regulations.gov under Docket No. FAA-2022-0672.
(2) For more information about this AD, contact Joseph
Catanzaro, Aerospace Engineer, Airframe and Propulsion Section, FAA,
New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY
11590; telephone 516-228-7366; email [email protected].
(3) Service information identified in this AD that is not
incorporated by reference is available at the addresses specified in
paragraphs (t)(4) and (5) of this AD.
(t) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless this AD specifies otherwise.
(3) The following service information was approved for IBR on
May 4, 2020 (85 FR 17473, March 30, 2020).
(i) Bombardier Service Bulletin 84-28-20, Revision D, dated
November 23, 2018.
(ii) Bombardier Service Bulletin 84-28-21, Revision C, dated
July 13, 2018.
(iii) Bombardier Service Bulletin 84-28-26, Revision A, dated
November 29, 2018.
(iv) Bombardier Q400 Dash 8 (Bombardier) Temporary Revision ALI-
0192, dated April 24, 2018.
(v) Q400 Dash 8 (Bombardier) Temporary Revision ALI-0193, dated
April 24, 2018.
(4) For service information identified in this AD, contact De
Havilland Aircraft of Canada Limited, Dash 8 Series Customer
Response Centre, 5800 Explorer Drive, Mississauga, Ontario, L4W 5K9,
Canada; telephone North America (toll-free): 855-310-1013, Direct:
647-277-5820; email dehavilland.com">[email protected]dehavilland.com; website dehavilland.com.
(5) 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.
(6) You may view this 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, email [email protected], or go to: www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued on October 25, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2022-24289 Filed 11-7-22; 8:45 am]
BILLING CODE 4910-13-P
