Rule2021-21117
Airworthiness Directives; Airbus Helicopters
Primary source
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Published
September 30, 2021
Effective
November 4, 2021
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is superseding Airworthiness Directive (AD) 2020-24- 03, which applied to certain Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350D, AS355E, AS355F, AS355F1, and AS355F2 helicopters. AD 2020-24-03 required testing the UP/DOWN switches of a certain part-numbered DUNLOP cyclic stick grip, installing a placard, and revising the existing Rotorcraft Flight Manual (RFM) for your helicopter, or removing the DUNLOP cyclic stick grip. This AD retains some requirements of AD 2020-24-03 and also requires incorporating a new modification, and removing the placard and the RFM amendment installed previously as required by AD 2020-24-03. The additional actions are required as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by the development of a modification (MOD) procedure by Airbus Helicopters for the electrical wiring of the hoist control of the DUNLOP cyclic stick. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 86 Issue 187 (Thursday, September 30, 2021)</title>
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[Federal Register Volume 86, Number 187 (Thursday, September 30, 2021)]
[Rules and Regulations]
[Pages 54035-54037]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2021-21117]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2021-0559; Project Identifier MCAI-2021-00079-R;
Amendment 39-21727; AD 2021-19-09]
RIN 2120-AA64
Airworthiness Directives; Airbus Helicopters
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2020-24-
03, which applied to certain Airbus Helicopters Model AS350B, AS350BA,
AS350B1, AS350B2, AS350D, AS355E, AS355F, AS355F1, and AS355F2
helicopters. AD 2020-24-03 required testing the UP/DOWN switches of a
certain part-numbered DUNLOP cyclic stick grip, installing a placard,
and revising the existing Rotorcraft Flight Manual (RFM) for your
helicopter, or removing the DUNLOP cyclic stick grip. This AD retains
some requirements of AD 2020-24-03 and also requires incorporating a
new modification, and removing the placard and the RFM amendment
installed previously as required by AD 2020-24-03. The additional
actions are required as specified in a European Union Aviation Safety
Agency (EASA) AD, which is incorporated by reference. This AD was
prompted by the development of a modification (MOD) procedure by Airbus
Helicopters for the electrical wiring of the hoist control of the
DUNLOP cyclic stick. The FAA is issuing this AD to address the unsafe
condition on these products.
DATES: This AD is effective November 4, 2021.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of November 4,
2021.
ADDRESSES: For material incorporated by reference (IBR) in this AD,
contact the EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany;
telephone +49 221 8999 000; email <a href="/cdn-cgi/l/email-protection#e6a7a295a683879587c8839394899687c88393"><span class="__cf_email__" data-cfemail="7e3f3a0d3e1b1f0d1f501b0b0c110e1f501b0b">[email protected]</span></a>; internet
www.easa.europa.eu. You may find this material on the EASA website at
<a href="https://ad.easa.europa.eu">https://ad.easa.europa.eu</a>. You may view this material at the FAA,
Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy.,
Room 6N-321, Fort Worth, TX 76177. For information on the availability
of this material at the FAA, call (817) 222-5110. It is also available
in the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and
locating Docket No. FAA-2021-0559.
Examining the AD Docket
You may examine the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by
searching for and locating Docket No. FAA-2021-0559; 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, 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.
FOR FURTHER INFORMATION CONTACT: Daniel Poblete, Aerospace Engineer,
Systems & Equipment Section, Los Angeles ACO Branch, Compliance &
Airworthiness Division, 3960 Paramount Blvd., Lakewood, CA 90712;
telephone (562) 627-5335; email: <a href="/cdn-cgi/l/email-protection#9efafff0f7fbf2b0fab0eef1fcf2fbeafbdef8ffffb0f9f1e8"><span class="__cf_email__" data-cfemail="8febeee1e6eae3a1eba1ffe0ede3eafbeacfe9eeeea1e8e0f9">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
EASA, which is the Technical Agent for the Member States of the
European Union, has issued EASA AD 2021-0023, dated January 19, 2021
(EASA AD 2021-0023) to correct an unsafe condition for Airbus
Helicopters Model AS 350 and AS 355 helicopters.
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to supersede AD 2020-24-03, Amendment 39-21333 (85 FR
76955, December 1, 2020) (AD 2020-24-03). AD 2020-24-03 applied to
Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350D,
AS355E, AS355F, AS355F1, and AS355F2 helicopters with DUNLOP cyclic
stick grip manufacturer part number (MP/N) AC66444 with UP/DOWN
switches for rescue hoist control installed. The NPRM published in the
Federal Register on July 12, 2021 (86 FR 36516). The NPRM was prompted
by Airbus Helicopters developing MOD MC20096 and Airbus Helicopters
issuing service information for performing this modification on the
DUNLOP cyclic stick. The NPRM proposed to continue to require ground
testing of the UP/DOWN switches, installing a placard, and revising the
existing RFM for your helicopter. The NPRM also proposed to require
modifying the electrical wiring of the DUNLOP cyclic stick and removing
both the placard and RFM amendment previously installed as specified in
EASA AD 2021-0023.
The FAA is issuing this AD to address inadvertent activation of the
rescue hoist cable cutter function and consequent detachment of an
external load or person from the helicopter hoist, possibly resulting
in personal injury, or injury to persons on the ground, as specified in
an EASA AD. See EASA AD 2021-0023 for additional background
information.
Discussion of Final Airworthiness Directive
Comments
The FAA gave the public the opportunity to participate in
developing this final rule. The FAA received no comments on the NPRM or
on the determination of the cost to the public.
Conclusion
The FAA reviewed the relevant data and determined that air safety
and the public interest require adopting this final rule as proposed,
except for minor editorial changes. As published in the NPRM, three
instances of ``EASA AD 2020-0023'' have been changed to ``EASA AD 2021-
0023'' in this Final rule. These minor changes correct a typographical
error and the FAA has determined that they:
<bullet> Are consistent with the intent that was proposed in the
NPRM for addressing the unsafe condition; and
<bullet> Do not add any additional burden upon the public than was
already proposed in the NPRM.
Related Service Information Under 1 CFR Part 51
EASA AD 2021-0023 specifies procedures for installing the placard
and revising the Flight Manual to prohibit the use of the UP/DOWN
switches of the DUNLOP cyclic stick MP/N AC66444. EASA AD 2021-0023
also specifies procedures for modifying the electrical wiring of the
DUNLOP cyclic stick and removing both the placard and RFM amendment
previously installed.
This material 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.
[[Page 54036]]
Differences Between This AD and the EASA AD
For helicopters with DUNLOP cyclic stick grip MP/N AC66444 with UP/
DOWN switches for rescue hoist control installed, this AD requires
accomplishing a ground test of the UP/DOWN switches for proper function
before each hoist operation, whereas the EASA AD does not. Where EASA
AD 2021-0023 refers to its effective date or the effective date of EASA
Emergency AD 2020-0217-E, dated October 8, 2020, this AD requires using
the effective date of this AD. Where the service information referenced
in EASA AD 2021-0023 specifies ``work must be performed on the
helicopter by the operator,'' this AD requires that the work be
accomplished by a mechanic that meets the requirements of 14 CFR part
65 subpart D. Where the service information referenced in EASA AD 2021-
0023 specifies to discard certain placards and Flight Manual pages
(that were required by EASA AD 2020-0217-E), this AD requires removing
them instead.
EASA AD 2021-0023 requires operators to ``inform all flight crews''
of revisions to the RFM, and thereafter to ``operate the helicopter
accordingly.'' However, this AD does not specifically require those
actions.
14 CFR 91.9 requires that no person may operate a civil aircraft
without complying with the operating limitations specified in the RFM.
Therefore, including a requirement in this AD to operate the helicopter
according to the revised RFM would be redundant and unnecessary.
Further, compliance with such a requirement in an AD would be
impracticable to demonstrate or track on an ongoing basis; therefore, a
requirement to operate the helicopter in such a manner would be
unenforceable.
Where paragraph (4) of EASA AD 2021-0023 allows modifying a Group 2
helicopter into a Group 1 helicopter, this AD also requires
accomplishing the requirements of paragraph (g)(1) of this AD. Finally,
the service information referenced in EASA AD 2021-0023 requires
reporting certain information, whereas this AD does not.
Costs of Compliance
The FAA estimates that this AD affects 390 helicopters of U.S.
Registry. The FAA estimates that operators may incur the following
costs in order to comply with this AD. Labor costs are estimated at $85
per work-hour.
Accomplishing a ground test of the UP/DOWN switches for proper
function takes a minimal amount of time for a nominal cost. Replacing a
DUNLOP cyclic stick grip, if required, takes about 2.5 work-hours and
parts cost about $2,500 for an estimated cost of $2,713. Installing the
placard and revising the existing RFM for your helicopter takes about
0.5 work-hour for an estimated cost of $43 per helicopter and $16,770
for the U.S. fleet.
Modifying the electrical wiring of the DUNLOP cyclic stick takes up
to 4 work-hours and parts cost $2,147 for an estimated cost of up to
$2,487 per helicopter and $969,930 for the U.S. fleet. Removing the
placard and revising the existing RFM for your helicopter takes about
0.5 work-hour for an estimated cost of $43 per helicopter and $16,770
for the U.S. fleet.
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
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) 2020-24-03, Amendment 39-21333
(85 FR 76955, December 1, 2020); and
0
b. Adding the following new AD:
2021-19-09 Airbus Helicopters: Amendment 39-21727; Docket No. FAA-
2021-0559; Project Identifier MCAI-2021-00079-R.
(a) Effective Date
This airworthiness directive (AD) is effective November 4, 2021.
(b) Affected ADs
This AD replaces AD 2020-24-03, Amendment 39-21333 (85 FR 76955,
December 1, 2020) (AD 2020-24-03).
(c) Applicability
This AD applies to Airbus Helicopters Model AS350B, AS350BA,
AS350B1, AS350B2, AS350D, AS355E, AS355F, AS355F1, and AS355F2
helicopters, certificated in any category, as identified in European
Union Aviation Safety Agency (EASA) AD 2021-0023, dated January 19,
2021 (EASA AD 2021-0023).
(d) Subject
Joint Aircraft System Component (JASC) Code 2500, Cabin
Equipment/Furnishings.
(e) Unsafe Condition
This AD was prompted by the development of a modification of the
electrical wiring of the hoist control on the DUNLOP cyclic stick
grip. The FAA is issuing this AD to prevent inadvertent activation
of the rescue hoist cable cutter and consequent detachment of an
external load or person from the helicopter hoist. This condition
could result in personal injury or injury to persons on the ground.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Requirements
(1) For helicopters with DUNLOP cyclic stick grip manufacturer
part number AC66444 with UP/DOWN switches for rescue
[[Page 54037]]
hoist control installed, before each hoist operation after December
16, 2020 (the effective date of AD 2020-24-03), accomplish a ground
test of the UP/DOWN switches for proper function. If there is any
uncommanded hoist action, before further flight, remove the DUNLOP
cyclic stick grip from service. Accomplishing the modification in
paragraph (2) of EASA AD 2021-0023 constitutes terminating action
for the requirements of this paragraph.
(2) Except as specified in paragraph (h) of this AD: Comply with
all required actions and compliance times specified in, and in
accordance with, EASA AD 2021-0023.
(h) Exceptions to EASA AD 2021-0023
(1) Where EASA AD 2021-0023 refers to October 8, 2020 (the
effective date of EASA Emergency AD 2020-0217-E, dated October 6,
2020 (EASA AD 2020-0217-E)), this AD requires using the effective
date of this AD.
(2) Where the service information referenced in paragraph (1) of
EASA AD 2021-0023 specifies that the ``work must be performed on the
helicopter by the operator,'' this AD requires that the work be
accomplished by a mechanic that meets the requirements of 14 CFR
part 65 subpart D.
(3) Where EASA AD 2021-0023 refers to its effective date, this
AD requires using the effective date of this AD.
(4) Where EASA AD 2021-0023 refers to flight hours (FH), this AD
requires using hours time-in-service.
(5) Where the service information referenced in EASA AD 2021-
0023 specifies to discard certain placards and Flight Manual pages
(that were required by EASA AD 2020-0217-E), this AD requires
removing them.
(6) Where paragraph (3) of EASA AD 2021-0023 specifies to
``inform all flight crews and, thereafter, operate the helicopter
accordingly,'' this AD does not require those actions.
(7) Where paragraph (4) of EASA AD 2021-0023 allows modifying a
Group 2 helicopter into a Group 1 helicopter, this AD also requires
accomplishing the requirements of paragraph (g)(1) of this AD.
(8) The ``Remarks'' section of EASA AD 2021-0023 does not apply
to this AD.
(i) No Reporting Requirement
Where the service information referenced in EASA AD 2021-0023
specifies to submit certain information to the manufacturer, this AD
does not include that requirement.
(j) Alternative Methods of Compliance (AMOCs)
(1) 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 local Flight
Standards District Office, as appropriate. If sending information
directly to the manager of the International Validation Branch, send
it to the attention of the person identified in paragraph (k) of
this AD. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#2e17036f787d036f677c03191d1e036f63616d6e484f4f00494158"><span class="__cf_email__" data-cfemail="e2dbcfa3b4b1cfa3abb0cfd5d1d2cfa3afada1a2848383cc858d94">[email protected]</span></a>.
(2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the local flight standards district office/certificate holding
district office.
(k) Related Information
For more information about this AD, contact Daniel Poblete,
Aerospace Engineer, Systems & Equipment Section, Los Angeles ACO
Branch, Compliance & Airworthiness Division, 3960 Paramount Blvd.,
Lakewood, CA 90712; telephone (562) 627-5335; email
<a href="/cdn-cgi/l/email-protection#7b1f1a15121e17551f550b1419171e0f1e3b1d1a1a551c140d"><span class="__cf_email__" data-cfemail="2246434c4b474e0c460c524d404e475647624443430c454d54">[email protected]</span></a>.
(l) 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.
(i) European Union Aviation Safety Agency (EASA) AD 2021-0023,
dated January 19, 2021.
(ii) [Reserved]
(3) For EASA AD 2021-0023, contact the EASA, Konrad-Adenauer-
Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email
<a href="/cdn-cgi/l/email-protection#b6f7f2c5f6d3d7c5d798d3c3c4d9c6d798d3c3"><span class="__cf_email__" data-cfemail="92d3d6e1d2f7f3e1f3bcf7e7e0fde2f3bcf7e7">[email protected]</span></a>; internet www.easa.europa.eu. You may find this
EASA AD on the EASA website at <a href="https://ad.easa.europa.eu">https://ad.easa.europa.eu</a>.
(4) You may view this service information at the FAA, Office of
the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room
6N-321, Fort Worth, TX 76177. For information on the availability of
this material at the FAA, call 817-222-5110. This material may be
found in the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching
for and locating Docket No. FAA-2021-0559.
(5) You may view this material that is incorporated by reference
at the National Archives and Records Administration (NARA). For
information on the availability of this material at NARA, email
<a href="/cdn-cgi/l/email-protection#1e786c3077706d6e7b7d6a7771705e707f6c7f30797168"><span class="__cf_email__" data-cfemail="d2b4a0fcbbbca1a2b7b1a6bbbdbc92bcb3a0b3fcb5bda4">[email protected]</span></a>, or go to: <a href="https://www.archives.gov/federal-register/cfr/ibr-locations.html">https://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued on September 7, 2021.
Ross Landes,
Deputy Director for Regulatory Operations, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2021-21117 Filed 9-29-21; 8:45 am]
BILLING CODE 4910-13-P
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