Airworthiness Directives; Viking Air Limited (Type Certificate Previously Held by Bombardier, Inc.; Canadair Limited) Airplanes, 31145-31148 [2023-10332]
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31145
Rules and Regulations
Federal Register
Vol. 88, No. 94
Tuesday, May 16, 2023
This section of the FEDERAL REGISTER
contains regulatory documents having general
applicability and legal effect, most of which
are keyed to and codified in the Code of
Federal Regulations, which is published under
50 titles pursuant to 44 U.S.C. 1510.
The Code of Federal Regulations is sold by
the Superintendent of Documents.
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2022–1301; Project
Identifier MCAI–2021–01447–T; Amendment
39–22412; AD 2023–07–10]
RIN 2120–AA64
Airworthiness Directives; Viking Air
Limited (Type Certificate Previously
Held by Bombardier, Inc.; Canadair
Limited) Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
The FAA is superseding
Airworthiness Directive (AD) 96–12–11,
which applied to all Canadair Model
CL–215–1A10 airplanes. AD 96–12–11
required repetitive inspections to detect
discrepancies of the microswitches
fitted at the water door actuator;
replacement of any discrepant
microswitch; and modification of the
water door actuator switches, which
terminates the repetitive inspections.
This AD continues to require the
modification of the water door actuator
switches. This AD also requires
modification of the water door solenoid
valve common grounds, adds airplanes
to the applicability, and specifies a parts
installation limitation for the water door
solenoid valve. This AD was prompted
by reports of uncommanded opening of
the water doors during flight and water
scooping. The FAA is issuing this AD to
address the unsafe condition on these
products.
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SUMMARY:
This AD is effective June 20,
2023.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of June 20, 2023.
ADDRESSES:
DATES:
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AD Docket: You may examine the AD
docket at regulations.gov under Docket
No. FAA–2022–1301; 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 Viking Air
Limited, 1959 de Havilland Way,
Sidney, British Columbia V8L 5V5,
Canada; telephone +1–250–656–7227;
fax +1–250–656–0673; email acstechnical.publications@vikingair.com;
website vikingair.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–
2022–1301.
FOR FURTHER INFORMATION CONTACT:
Thomas Niczky, Aerospace Engineer,
Avionics and Electrical Systems
Section, FAA, New York ACO Branch,
1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516–
228–7347; email 9-avs-nyaco-cos@
faa.gov.
run, or a landing run, which could
cause serious damage to the airplane.
The NPRM published in the Federal
Register on October 27, 2022 (87 FR
65016). The NPRM was prompted by
AD CF–2021–51, dated December 21,
2021, issued by Transport Canada,
which is the aviation authority for
Canada (referred to after this as the
MCAI). The MCAI states that mandating
the modification of the water door
actuator microswitches, in lieu of the
previous repetitive inspections, will
provide a more robust water door design
that will better mitigate the risk of
uncommanded water door opening.
Also, it has been determined that
modifying the water door solenoid valve
common grounds will mitigate the risk
of corroded or contaminated electrical
contact leading to a sneak path and
subsequent uncommanded opening of
the water doors.
In the NPRM, the FAA proposed to
continue to require the modification of
the water door actuator switches. The
FAA also proposed to require
modification of the water door solenoid
valve common grounds, add airplanes to
the applicability, and prohibit the
installation of certain water door
solenoid valve selector assemblies. The
FAA is issuing this AD to address the
uncommanded opening of water doors,
which, at high speed during the take-off
run, water pick-up run, or landing run,
could cause serious damage to the
airplane.
You may examine the MCAI in the
AD docket at regulations.gov under
Docket No. FAA–2022–1301.
SUPPLEMENTARY INFORMATION:
Discussion of Final Airworthiness
Directive
Background
Comments
The FAA issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 96–12–11,
Amendment 39–9653 (61 FR 28734,
June 6, 1996) (AD 96–12–11). AD 96–
12–11 applied to all Canadair Model
CL–215–1A10 airplanes. AD 96–12–11
required repetitive inspections to detect
discrepancies of the microswitches
fitted at the water door actuator,
replacement of any discrepant
microswitch, and a terminating action
for the repetitive inspections. The FAA
issued AD 96–12–11 to address a
possible uncommanded opening of the
water doors, especially at high speed
during a takeoff run, a water pick-up
The FAA received comments from
Bridger Aerospace. The following
presents the comments received on the
NPRM and the FAA’s response to each
comment.
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Sfmt 4700
Request To Incorporate Global
Alternative Method of Compliance
(AMOC) and Remove Parts Installation
Prohibition
Bridger Aerospace (Bridger) requested
that the requirements in Global AMOC
No. AARDG 2022/A33 issued by
Transport Canada be incorporated into
the proposed AD by mandating that
design change Mod CL/0076, as
specified in Viking Technical Bulletin
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16MYR1
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Federal Register / Vol. 88, No. 94 / Tuesday, May 16, 2023 / Rules and Regulations
V215–3214, be incorporated if the part
number (P/N) 362–0377 valve is to be
used as a replacement. Bridger stated
that the additional backup protection
provided by this EMF kit is ‘‘very
conclusive in addressing the possibility
of reoccurrence.’’ In addition, Bridger
Aerospace requested that the statement
that P/N 362–0377 cannot be used as a
replacement part specified in paragraph
(i) of the proposed AD be removed.
Bridger Aerospace stated that P/N 362–
0377 can be used in other locations of
the airplane (e.g., main and auxiliary
hydraulic system, landing gear
extension/retraction, and nosewheel
steering) that do not require backup
EMF protection. Bridger Aerospace also
stated that the replacement P/N 20P16–
2 has an exorbitant cost and are
unavailable for up to eight months.
The FAA agrees that P/N 362–0377
can be used in other locations of the
airplane other than the water door and
agrees to incorporate the intent of
Transport Canada’s approved Global
AMOC No. AARDG 2022/A33 into this
AD. This allows the water door solenoid
valve selector assembly, P/N 362–0377,
to be used as a replacement part if it has
been modified in accordance with
Viking Technical Bulletin V215/0713,
Revision A, dated June 20, 2022; or
Viking Technical Bulletin V215/3214,
Revision A, dated June 20, 2022.
Paragraph (i) of this AD has been
changed to allow P/N 362–0377 to be
used as a replacement part as long as it
has been modified in accordance with
Viking Technical Bulletin V215/0713,
Revision A, dated June 20, 2022; or
Viking Technical Bulletin V215/3214,
Revision A, dated June 20, 2022.
In addition, paragraph (i)(2) of this
AD further requires that airplanes
installed with this modification must
revise their existing maintenance or
inspection program, as applicable, to
incorporate the information specified in
Viking Temporary Revision 25–27,
dated April 13, 2022, for Chapter 25–
70–00 of the Viking CL–215
Maintenance Manual, PSP 292.
Paragraph (i) of this AD has also been
changed to allow water door solenoid
valve, 4-way selector valve, P/N 20P16–
2, specification control drawing (SCD)
215T92392–2, or superseding part with
internal back electro-motive force (EMF)
protection on which the design change
modification specified in Viking
Technical Bulletin V215/0713, Revision
A, dated June 20, 2022; or Viking
Technical Bulletin V215/3214, Revision
A, dated June 20, 2022; is incorporated
as replacements parts.
In addition, paragraph (j)(2) of this AD
has been added to provide credit if
modifications were done prior to the
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effective date of this AD in accordance
with Viking Technical Bulletin V215/
0713, dated April 14, 2022; or Viking
Technical Bulletin V215/3214, dated
April 14, 2022.
Request To Require Modification of
Existing Valves
Bridger requested that the proposed
AD be changed to require P/N 362–0377
valves currently installed in the water
door system to be modified within 24
months. Bridger stated this modification
will assure the water door system has
the maximum level of safety to not have
any more uncommanded door openings.
The FAA does not agree with
requiring a modification to the P/N 362–
0377 valves currently installed in the
water door system. The actions required
by this AD address the identified unsafe
condition. However, operators may elect
to modify these parts in accordance
with Viking Technical Bulletin V215/
0713, Revision A, dated June 20, 2022;
or Viking Technical Bulletin V215/3214,
Revision A, dated June 20, 2022. This
AD has not been changed with regard to
this request.
Additional Changes Made to This Final
Rule
The FAA reviewed Viking Service
Bulletin 215–389, Revision 3, dated
February 15, 2023, which limits the
effectivity to Model CL–215–1A10
airplanes because Model CL–215–6B11
(CL–215T Variant) airplanes already
have an equivalent modification
incorporated. Viking Service Bulletin
215–389, Revision 3, dated February 15,
2023, does not revise the modification
procedures. Therefore, the FAA revised
paragraph (g) of this AD to specify that
only Model CL–215–1A10 airplanes are
affected. The FAA has also revised
paragraph (g) of this AD to refer to
Viking Service Bulletin 215–389,
Revision 3, dated February 15, 2023. In
addition, Viking Service Bulletin 215–
389, Revision 2, dated September 21,
2021, was added as credit to paragraph
(j) of this AD.
In addition, the FAA determined that
the retained compliance time specified
in paragraph (g) of this AD should not
apply to airplanes on which the
modification specified Canadair Service
Bulletin 215–389, dated November 15,
1988, has been done because those
airplanes would be immediately out of
compliance with the requirements as
specified in paragraph (g) of the
proposed AD. Those airplanes were
previously in compliance with AD 96–
12–11 as specified in Note 2 to
paragraph (d) of AD 96–12–11.
However, Canadair Service Bulletin
215–389, dated November 15, 1988, is
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no longer acceptable for compliance for
this AD. Therefore, those operators must
accomplish additional actions using a
later revision of Canadair Service
Bulletin 215–389, dated November 15,
1988. The FAA has revised the
compliance time in paragraph (g) of this
AD to allow 2 years after the effective
date of this AD to do the modification,
which corresponds to the compliance
time specified in Part I of Transport
Canada AD CF–2021–51, dated
December 21, 2021. The FAA has
determined that the compliance time
represents the maximum interval of
time allowable for the affected airplanes
to continue to safely operate before the
modification is done.
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 comments 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
minor editorial changes, and any other
changes described previously, this AD is
adopted as proposed in the NPRM.
None of the changes will increase the
economic burden on any operator.
Related Service Information Under 1
CFR Part 51
Viking Air Limited has issued Viking
Service Bulletin 215–389, Revision 3,
dated February 15, 2023. This service
information describes procedures for
modifying the water door actuator
switches, which includes replacing the
water door actuator microswitches,
installing a relay channel and relays,
and modifying related wiring.
Bombardier has issued Alert Service
Bulletin 215–A497, dated November 16,
1998. This service information describes
procedures for installing two additional
water door solenoid common grounds,
as well as inspecting the existing ground
studs for corrosion and cleaning if
necessary.
Viking Air Limited has issued Viking
Technical Bulletin V215/0713, Revision
A, dated June 20, 2022. This service
information provides instructions to
install terminal rails and terminal
modules with Zener-diodes to suppress
back-electro-motive force (EMF) in
Viking Air Limited Model CL–215–
1A10 airplanes.
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Federal Register / Vol. 88, No. 94 / Tuesday, May 16, 2023 / Rules and Regulations
Viking Air Limited has issued Viking
Temporary Revision 25–27, dated April
13, 2022. This service information
describes procedures in Chapter 25–70–
00 for the Mod CL/0076, Water Drop
System—Hydraulic Solenoid Electrical
Back-EMF Protection.
This service information is reasonably
available because the interested parties
Viking Air Limited has issued Viking
Technical Bulletin V215/3214, Revision
A, dated June 20, 2022. This service
information provides instructions to
install terminal rails and terminal
modules with Zener-diodes to suppress
back-EMF in Viking Air Limited Model
CL–215–6B11 (CL–215T Variant)
airplanes.
31147
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 6 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 96–12–11 .....
New actions ............................................
40 work-hours × $85 per hour = $3,400
2 work-hours × $85 per hour = $170 .....
List of Subjects in 14 CFR Part 39
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.
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
Regulatory Findings
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$10,038
108
Authority for This Rulemaking
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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The Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as
follows:
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by:
a. Removing Airworthiness Directive
(AD) 96–12–11, Amendment 39–9653
(61 FR 28734, June 6, 1996); and
■ b. Adding the following new AD:
■
■
2023–07–10 Viking Air Limited (Type
Certificate Previously Held by
Bombardier, Inc.; Canadair Limited):
Amendment 39–22412; Docket No.
FAA–2022–1301; Project Identifier
MCAI–2021–01447–T.
(a) Effective Date
This airworthiness directive (AD) is
effective June 20, 2023.
(b) Affected ADs
This AD replaces AD 96–12–11,
Amendment 39–9653 (61 FR 28734, June 6,
1996) (AD 96–12–11).
(c) Applicability
This AD applies to all Viking Air Limited
(Type Certificate previously held by
Bombardier, Inc.; Canadair Limited) Model
CL–215–1A10 and CL–215–6B11 (CL–215T
Variant) airplanes, certificated in any
category.
(d) Subject
Air Transport Association (ATA) of
America Code 25, Equipment/furnishings.
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Cost per
product
Parts cost
Sfmt 4700
$13,438
278
Cost on U.S.
operators
$26,876 (2 airplanes).
1,668.
(e) Reason
This AD was prompted by reports of
uncommanded opening of the water doors
during flight and water scooping. The FAA
is issuing this AD to address the
uncommanded opening of water doors,
which, at high speed during the take-off run,
water pick-up run, or landing run, could
cause serious damage to the airplane.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Modification of Microswitches, with
Revised Service Information and a New
Compliance Time
This paragraph restates the requirements of
paragraph (d) of AD 96–12–11, with revised
service information and a new compliance
time. For Model CL–215–1A10 airplanes:
Within 24 months after the effective date of
this AD, modify the water door
microswitches in accordance with Viking
Service Bulletin 215–389, Revision 3, dated
February 15, 2023.
(h) New Requirement of This AD:
Installation of Common Grounds
Within 24 months after the effective date
of this AD, install two new water door
solenoid valve common grounds in
accordance with the Accomplishment
Instructions of Bombardier Alert Service
Bulletin 215–A497, dated November 16,
1998.
(i) Parts Installation Limitation
(1) As of the effective date of this AD, only
the parts identified in paragraphs (i)(1)(i)
through (iii) of this AD are allowed for use
as a replacement part for the water door
solenoid valve.
(i) Water door solenoid valve, selector
assembly, part number (P/N) 362–0377, on
which the design change modification
specified in Viking Technical Bulletin V215/
0713, Revision A, dated June 20, 2022; or
Viking Technical Bulletin V215/3214,
Revision A, dated June 20, 2022; is
incorporated.
(ii) Water door solenoid valve, 4-way
selector valve, P/N 20P16–2, specification
control drawing (SCD) 215T92392–2, or
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Federal Register / Vol. 88, No. 94 / Tuesday, May 16, 2023 / Rules and Regulations
superseding part with internal back electromotive force (EMF) protection.
(iii) Water door solenoid valve, 4-way
selector valve, P/N 20P16–2, SCD
215T92392–2, or superseding part with
internal back EMF protection on which the
design change modification specified in
Viking Technical Bulletin V215/0713,
Revision A, dated June 20, 2022; or Viking
Technical Bulletin V215/3214, Revision A,
dated June 20, 2022; is incorporated.
(2) For airplanes on which a part identified
in paragraph (i)(1)(i) or (iii) of this AD is
installed: Before further flight after
installation, revise the exiting maintenance
or inspection program to incorporate the
information for Chapter 25–70–00 specified
in Viking Temporary Revision 25–27, dated
April 13, 2022, into the Viking CL–215
Maintenance Manual, PSP 292.
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(j) Credit for Previous Actions
(1) This paragraph provides credit for
actions required by paragraph (g) of this AD,
if those actions were performed before the
effective date of this AD using Canadair
Service Bulletin 215–389, Revision 1, dated
September 30, 1991, including the
retrospective action for aircraft modified in
accordance with Canadair Service Bulletin
215–389, dated November 15, 1988; or Viking
Service Bulletin 215–389 Revision 2, dated
September 21, 2021.
(2) This paragraph provides credit for
actions required by paragraphs (i)(1)(i) and
(iii) of this AD, if those actions were
performed before the effective date of this AD
using Viking Technical Bulletin V215/0713,
dated April 14, 2022; or Viking Technical
Bulletin V215/3214, dated April 14, 2022.
(k) Other FAA AD Provisions
(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
(Transport Canada); or Viking Air Limited’s
Transport Canada Design Approval
Organization (DAO). If approved by the DAO,
the approval must include the DAOauthorized signature.
2021, for related information. This Transport
Canada AD may be found in the AD docket
at regulations.gov under Docket No. FAA–
2022–1301.
(2) For more information about this AD,
contact Thomas Niczky, Aerospace Engineer,
Avionics and Electrical Systems Section,
FAA, New York ACO Branch, 1600 Stewart
Avenue, Suite 410, Westbury, NY 11590;
telephone 516–228–7347; email 9-avs-nyacocos@faa.gov.
(m) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference 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.
(i) Bombardier Alert Service Bulletin 215–
A497, dated November 16, 1998.
(ii) Viking Service Bulletin 215–389,
Revision 3, dated February 15, 2023.
(iii) Viking Technical Bulletin V215/0713,
Revision A, dated June 20, 2022.
(iv) Viking Technical Bulletin V215/3214,
Revision A, dated June 20, 2022.
(v) Viking CL–215 Maintenance Manual,
PSP 292, Temporary Revision 25–27, dated
April 13, 2022.
(3) For service information identified in
this AD, contact Viking Air Limited, 1959 de
Havilland Way, Sidney, British Columbia
V8L 5V5, Canada; telephone +1–250–656–
7227; fax +1–250–656–0673; email acstechnical.publications@vikingair.com;
website vikingair.com.
(4) 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.
(5) 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 April 8, 2023.
Christina Underwood,
Acting Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2023–10332 Filed 5–15–23; 8:45 am]
BILLING CODE 4910–13–P
(l) Additional Information
(1) Refer to Mandatory Continuing
Airworthiness Information (MCAI) Transport
Canada AD CF–2021–51, dated December 21,
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16:03 May 15, 2023
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2022–1403; Project
Identifier MCAI–2022–00122–T; Amendment
39–22408; AD 2023–07–06]
RIN 2120–AA64
Airworthiness Directives; De Havilland
Aircraft of Canada Limited (Type
Certificate Previously Held by
Bombardier, Inc.) Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
The FAA is adopting a new
airworthiness directive (AD) for certain
De Havilland Aircraft of Canada Limited
Model DHC–8–401 and –402 airplanes.
This AD was prompted by reports of
corrosion on the horizontal stabilizer
lower center skin panel, including a
finding of corrosion where the skin
thickness had been substantially
reduced, which affected design margins.
This AD requires inspecting the
horizontal stabilizer lower center skin
panel for corrosion, and reworking,
repairing, or replacing the lower center
skin panel if necessary. The FAA is
issuing this AD to address the unsafe
condition on these products.
DATES: This AD is effective June 20,
2023.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of June 20, 2023.
ADDRESSES:
AD Docket: You may examine the AD
docket at regulations.gov under Docket
No. FAA–2022–1403; 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 855–310–
1013 or 647–277–5820; email thd@
dehavilland.com; website
dehavilland.com.
SUMMARY:
E:\FR\FM\16MYR1.SGM
16MYR1
Agencies
[Federal Register Volume 88, Number 94 (Tuesday, May 16, 2023)]
[Rules and Regulations]
[Pages 31145-31148]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-10332]
========================================================================
Rules and Regulations
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains regulatory documents
having general applicability and legal effect, most of which are keyed
to and codified in the Code of Federal Regulations, which is published
under 50 titles pursuant to 44 U.S.C. 1510.
The Code of Federal Regulations is sold by the Superintendent of Documents.
========================================================================
Federal Register / Vol. 88, No. 94 / Tuesday, May 16, 2023 / Rules
and Regulations
[[Page 31145]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-1301; Project Identifier MCAI-2021-01447-T;
Amendment 39-22412; AD 2023-07-10]
RIN 2120-AA64
Airworthiness Directives; Viking Air Limited (Type Certificate
Previously Held by Bombardier, Inc.; Canadair Limited) Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is superseding Airworthiness Directive (AD) 96-12-11,
which applied to all Canadair Model CL-215-1A10 airplanes. AD 96-12-11
required repetitive inspections to detect discrepancies of the
microswitches fitted at the water door actuator; replacement of any
discrepant microswitch; and modification of the water door actuator
switches, which terminates the repetitive inspections. This AD
continues to require the modification of the water door actuator
switches. This AD also requires modification of the water door solenoid
valve common grounds, adds airplanes to the applicability, and
specifies a parts installation limitation for the water door solenoid
valve. This AD was prompted by reports of uncommanded opening of the
water doors during flight and water scooping. The FAA is issuing this
AD to address the unsafe condition on these products.
DATES: This AD is effective June 20, 2023.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of June 20,
2023.
ADDRESSES:
AD Docket: You may examine the AD docket at regulations.gov under
Docket No. FAA-2022-1301; 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 Viking Air Limited, 1959 de Havilland Way, Sidney, British
Columbia V8L 5V5, Canada; telephone +1-250-656-7227; fax +1-250-656-
0673; email vikingair.com">[email protected]vikingair.com; website
vikingair.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-2022-1301.
FOR FURTHER INFORMATION CONTACT: Thomas Niczky, Aerospace Engineer,
Avionics and Electrical Systems Section, FAA, New York ACO Branch, 1600
Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7347;
email [email protected].
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to supersede AD 96-12-11, Amendment 39-9653 (61 FR 28734,
June 6, 1996) (AD 96-12-11). AD 96-12-11 applied to all Canadair Model
CL-215-1A10 airplanes. AD 96-12-11 required repetitive inspections to
detect discrepancies of the microswitches fitted at the water door
actuator, replacement of any discrepant microswitch, and a terminating
action for the repetitive inspections. The FAA issued AD 96-12-11 to
address a possible uncommanded opening of the water doors, especially
at high speed during a takeoff run, a water pick-up run, or a landing
run, which could cause serious damage to the airplane.
The NPRM published in the Federal Register on October 27, 2022 (87
FR 65016). The NPRM was prompted by AD CF-2021-51, dated December 21,
2021, issued by Transport Canada, which is the aviation authority for
Canada (referred to after this as the MCAI). The MCAI states that
mandating the modification of the water door actuator microswitches, in
lieu of the previous repetitive inspections, will provide a more robust
water door design that will better mitigate the risk of uncommanded
water door opening. Also, it has been determined that modifying the
water door solenoid valve common grounds will mitigate the risk of
corroded or contaminated electrical contact leading to a sneak path and
subsequent uncommanded opening of the water doors.
In the NPRM, the FAA proposed to continue to require the
modification of the water door actuator switches. The FAA also proposed
to require modification of the water door solenoid valve common
grounds, add airplanes to the applicability, and prohibit the
installation of certain water door solenoid valve selector assemblies.
The FAA is issuing this AD to address the uncommanded opening of water
doors, which, at high speed during the take-off run, water pick-up run,
or landing run, could cause serious damage to the airplane.
You may examine the MCAI in the AD docket at regulations.gov under
Docket No. FAA-2022-1301.
Discussion of Final Airworthiness Directive
Comments
The FAA received comments from Bridger Aerospace. The following
presents the comments received on the NPRM and the FAA's response to
each comment.
Request To Incorporate Global Alternative Method of Compliance (AMOC)
and Remove Parts Installation Prohibition
Bridger Aerospace (Bridger) requested that the requirements in
Global AMOC No. AARDG 2022/A33 issued by Transport Canada be
incorporated into the proposed AD by mandating that design change Mod
CL/0076, as specified in Viking Technical Bulletin
[[Page 31146]]
V215-3214, be incorporated if the part number (P/N) 362-0377 valve is
to be used as a replacement. Bridger stated that the additional backup
protection provided by this EMF kit is ``very conclusive in addressing
the possibility of reoccurrence.'' In addition, Bridger Aerospace
requested that the statement that P/N 362-0377 cannot be used as a
replacement part specified in paragraph (i) of the proposed AD be
removed. Bridger Aerospace stated that P/N 362-0377 can be used in
other locations of the airplane (e.g., main and auxiliary hydraulic
system, landing gear extension/retraction, and nosewheel steering) that
do not require backup EMF protection. Bridger Aerospace also stated
that the replacement P/N 20P16-2 has an exorbitant cost and are
unavailable for up to eight months.
The FAA agrees that P/N 362-0377 can be used in other locations of
the airplane other than the water door and agrees to incorporate the
intent of Transport Canada's approved Global AMOC No. AARDG 2022/A33
into this AD. This allows the water door solenoid valve selector
assembly, P/N 362-0377, to be used as a replacement part if it has been
modified in accordance with Viking Technical Bulletin V215/0713,
Revision A, dated June 20, 2022; or Viking Technical Bulletin V215/
3214, Revision A, dated June 20, 2022. Paragraph (i) of this AD has
been changed to allow P/N 362-0377 to be used as a replacement part as
long as it has been modified in accordance with Viking Technical
Bulletin V215/0713, Revision A, dated June 20, 2022; or Viking
Technical Bulletin V215/3214, Revision A, dated June 20, 2022.
In addition, paragraph (i)(2) of this AD further requires that
airplanes installed with this modification must revise their existing
maintenance or inspection program, as applicable, to incorporate the
information specified in Viking Temporary Revision 25-27, dated April
13, 2022, for Chapter 25-70-00 of the Viking CL-215 Maintenance Manual,
PSP 292. Paragraph (i) of this AD has also been changed to allow water
door solenoid valve, 4-way selector valve, P/N 20P16-2, specification
control drawing (SCD) 215T92392-2, or superseding part with internal
back electro-motive force (EMF) protection on which the design change
modification specified in Viking Technical Bulletin V215/0713, Revision
A, dated June 20, 2022; or Viking Technical Bulletin V215/3214,
Revision A, dated June 20, 2022; is incorporated as replacements parts.
In addition, paragraph (j)(2) of this AD has been added to provide
credit if modifications were done prior to the effective date of this
AD in accordance with Viking Technical Bulletin V215/0713, dated April
14, 2022; or Viking Technical Bulletin V215/3214, dated April 14, 2022.
Request To Require Modification of Existing Valves
Bridger requested that the proposed AD be changed to require P/N
362-0377 valves currently installed in the water door system to be
modified within 24 months. Bridger stated this modification will assure
the water door system has the maximum level of safety to not have any
more uncommanded door openings.
The FAA does not agree with requiring a modification to the P/N
362-0377 valves currently installed in the water door system. The
actions required by this AD address the identified unsafe condition.
However, operators may elect to modify these parts in accordance with
Viking Technical Bulletin V215/0713, Revision A, dated June 20, 2022;
or Viking Technical Bulletin V215/3214, Revision A, dated June 20,
2022. This AD has not been changed with regard to this request.
Additional Changes Made to This Final Rule
The FAA reviewed Viking Service Bulletin 215-389, Revision 3, dated
February 15, 2023, which limits the effectivity to Model CL-215-1A10
airplanes because Model CL-215-6B11 (CL-215T Variant) airplanes already
have an equivalent modification incorporated. Viking Service Bulletin
215-389, Revision 3, dated February 15, 2023, does not revise the
modification procedures. Therefore, the FAA revised paragraph (g) of
this AD to specify that only Model CL-215-1A10 airplanes are affected.
The FAA has also revised paragraph (g) of this AD to refer to Viking
Service Bulletin 215-389, Revision 3, dated February 15, 2023. In
addition, Viking Service Bulletin 215-389, Revision 2, dated September
21, 2021, was added as credit to paragraph (j) of this AD.
In addition, the FAA determined that the retained compliance time
specified in paragraph (g) of this AD should not apply to airplanes on
which the modification specified Canadair Service Bulletin 215-389,
dated November 15, 1988, has been done because those airplanes would be
immediately out of compliance with the requirements as specified in
paragraph (g) of the proposed AD. Those airplanes were previously in
compliance with AD 96-12-11 as specified in Note 2 to paragraph (d) of
AD 96-12-11. However, Canadair Service Bulletin 215-389, dated November
15, 1988, is no longer acceptable for compliance for this AD.
Therefore, those operators must accomplish additional actions using a
later revision of Canadair Service Bulletin 215-389, dated November 15,
1988. The FAA has revised the compliance time in paragraph (g) of this
AD to allow 2 years after the effective date of this AD to do the
modification, which corresponds to the compliance time specified in
Part I of Transport Canada AD CF-2021-51, dated December 21, 2021. The
FAA has determined that the compliance time represents the maximum
interval of time allowable for the affected airplanes to continue to
safely operate before the modification is done.
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
comments 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 minor editorial
changes, and any other changes described previously, this AD is adopted
as proposed in the NPRM. None of the changes will increase the economic
burden on any operator.
Related Service Information Under 1 CFR Part 51
Viking Air Limited has issued Viking Service Bulletin 215-389,
Revision 3, dated February 15, 2023. This service information describes
procedures for modifying the water door actuator switches, which
includes replacing the water door actuator microswitches, installing a
relay channel and relays, and modifying related wiring.
Bombardier has issued Alert Service Bulletin 215-A497, dated
November 16, 1998. This service information describes procedures for
installing two additional water door solenoid common grounds, as well
as inspecting the existing ground studs for corrosion and cleaning if
necessary.
Viking Air Limited has issued Viking Technical Bulletin V215/0713,
Revision A, dated June 20, 2022. This service information provides
instructions to install terminal rails and terminal modules with Zener-
diodes to suppress back-electro-motive force (EMF) in Viking Air
Limited Model CL-215-1A10 airplanes.
[[Page 31147]]
Viking Air Limited has issued Viking Technical Bulletin V215/3214,
Revision A, dated June 20, 2022. This service information provides
instructions to install terminal rails and terminal modules with Zener-
diodes to suppress back-EMF in Viking Air Limited Model CL-215-6B11
(CL-215T Variant) airplanes.
Viking Air Limited has issued Viking Temporary Revision 25-27,
dated April 13, 2022. This service information describes procedures in
Chapter 25-70-00 for the Mod CL/0076, Water Drop System--Hydraulic
Solenoid Electrical Back-EMF Protection.
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 6 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
Cost per
Action Labor cost Parts cost product Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
Retained actions from AD 96- 40 work-hours x $10,038 $13,438 $26,876 (2 airplanes).
12-11. $85 per hour =
$3,400.
New actions.................. 2 work-hours x 108 278 1,668.
$85 per hour =
$170.
----------------------------------------------------------------------------------------------------------------
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) 96-12-11, Amendment 39-9653
(61 FR 28734, June 6, 1996); and
0
b. Adding the following new AD:
2023-07-10 Viking Air Limited (Type Certificate Previously Held by
Bombardier, Inc.; Canadair Limited): Amendment 39-22412; Docket No.
FAA-2022-1301; Project Identifier MCAI-2021-01447-T.
(a) Effective Date
This airworthiness directive (AD) is effective June 20, 2023.
(b) Affected ADs
This AD replaces AD 96-12-11, Amendment 39-9653 (61 FR 28734,
June 6, 1996) (AD 96-12-11).
(c) Applicability
This AD applies to all Viking Air Limited (Type Certificate
previously held by Bombardier, Inc.; Canadair Limited) Model CL-215-
1A10 and CL-215-6B11 (CL-215T Variant) airplanes, certificated in
any category.
(d) Subject
Air Transport Association (ATA) of America Code 25, Equipment/
furnishings.
(e) Reason
This AD was prompted by reports of uncommanded opening of the
water doors during flight and water scooping. The FAA is issuing
this AD to address the uncommanded opening of water doors, which, at
high speed during the take-off run, water pick-up run, or landing
run, could cause serious damage to the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Modification of Microswitches, with Revised Service Information and
a New Compliance Time
This paragraph restates the requirements of paragraph (d) of AD
96-12-11, with revised service information and a new compliance
time. For Model CL-215-1A10 airplanes: Within 24 months after the
effective date of this AD, modify the water door microswitches in
accordance with Viking Service Bulletin 215-389, Revision 3, dated
February 15, 2023.
(h) New Requirement of This AD: Installation of Common Grounds
Within 24 months after the effective date of this AD, install
two new water door solenoid valve common grounds in accordance with
the Accomplishment Instructions of Bombardier Alert Service Bulletin
215-A497, dated November 16, 1998.
(i) Parts Installation Limitation
(1) As of the effective date of this AD, only the parts
identified in paragraphs (i)(1)(i) through (iii) of this AD are
allowed for use as a replacement part for the water door solenoid
valve.
(i) Water door solenoid valve, selector assembly, part number
(P/N) 362-0377, on which the design change modification specified in
Viking Technical Bulletin V215/0713, Revision A, dated June 20,
2022; or Viking Technical Bulletin V215/3214, Revision A, dated June
20, 2022; is incorporated.
(ii) Water door solenoid valve, 4-way selector valve, P/N 20P16-
2, specification control drawing (SCD) 215T92392-2, or
[[Page 31148]]
superseding part with internal back electro-motive force (EMF)
protection.
(iii) Water door solenoid valve, 4-way selector valve, P/N
20P16-2, SCD 215T92392-2, or superseding part with internal back EMF
protection on which the design change modification specified in
Viking Technical Bulletin V215/0713, Revision A, dated June 20,
2022; or Viking Technical Bulletin V215/3214, Revision A, dated June
20, 2022; is incorporated.
(2) For airplanes on which a part identified in paragraph
(i)(1)(i) or (iii) of this AD is installed: Before further flight
after installation, revise the exiting maintenance or inspection
program to incorporate the information for Chapter 25-70-00
specified in Viking Temporary Revision 25-27, dated April 13, 2022,
into the Viking CL-215 Maintenance Manual, PSP 292.
(j) Credit for Previous Actions
(1) This paragraph provides credit for actions required by
paragraph (g) of this AD, if those actions were performed before the
effective date of this AD using Canadair Service Bulletin 215-389,
Revision 1, dated September 30, 1991, including the retrospective
action for aircraft modified in accordance with Canadair Service
Bulletin 215-389, dated November 15, 1988; or Viking Service
Bulletin 215-389 Revision 2, dated September 21, 2021.
(2) This paragraph provides credit for actions required by
paragraphs (i)(1)(i) and (iii) of this AD, if those actions were
performed before the effective date of this AD using Viking
Technical Bulletin V215/0713, dated April 14, 2022; or Viking
Technical Bulletin V215/3214, dated April 14, 2022.
(k) Other FAA AD Provisions
(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 (Transport Canada);
or Viking Air Limited's Transport Canada Design Approval
Organization (DAO). If approved by the DAO, the approval must
include the DAO-authorized signature.
(l) Additional Information
(1) Refer to Mandatory Continuing Airworthiness Information
(MCAI) Transport Canada AD CF-2021-51, dated December 21, 2021, for
related information. This Transport Canada AD may be found in the AD
docket at regulations.gov under Docket No. FAA-2022-1301.
(2) For more information about this AD, contact Thomas Niczky,
Aerospace Engineer, Avionics and Electrical Systems Section, FAA,
New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY
11590; telephone 516-228-7347; email [email protected].
(m) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference 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.
(i) Bombardier Alert Service Bulletin 215-A497, dated November
16, 1998.
(ii) Viking Service Bulletin 215-389, Revision 3, dated February
15, 2023.
(iii) Viking Technical Bulletin V215/0713, Revision A, dated
June 20, 2022.
(iv) Viking Technical Bulletin V215/3214, Revision A, dated June
20, 2022.
(v) Viking CL-215 Maintenance Manual, PSP 292, Temporary
Revision 25-27, dated April 13, 2022.
(3) For service information identified in this AD, contact
Viking Air Limited, 1959 de Havilland Way, Sidney, British Columbia
V8L 5V5, Canada; telephone +1-250-656-7227; fax +1-250-656-0673;
email vikingair.com">[email protected]vikingair.com; website
vikingair.com.
(4) 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.
(5) 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 April 8, 2023.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2023-10332 Filed 5-15-23; 8:45 am]
BILLING CODE 4910-13-P