Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters, 19571-19574 [2021-07687]
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19571
Rules and Regulations
Federal Register
Vol. 86, No. 70
Wednesday, April 14, 2021
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–2021–0305; Project
Identifier AD–2021–00334–R; Amendment
39–21512; AD 2021–08–18]
RIN 2120–AA64
Airworthiness Directives; Sikorsky
Aircraft Corporation Helicopters
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule; request for
comments.
AGENCY:
The FAA is superseding
Airworthiness Directive (AD) 2021–04–
16 which applied to certain Sikorsky
Aircraft Corporation (Sikorsky) Model
S–92A helicopters. AD 2021–04–16
required a one-time inspection of the
landing gear for components with nonconforming threads and removal of any
non-conforming threaded hinge pin and
main landing gear (MLG) and nose
landing gear (NLG) actuator pins. AD
2021–04–16 also prohibited installing
certain part-numbered hinge and
actuator pins on any helicopter. This
AD requires the same actions but
corrects erroneous part numbers. This
AD was prompted by the discovery that
certain part numbers listed in AD 2021–
04–16 are incorrect. The FAA is issuing
this AD to address the unsafe condition
on these products.
DATES: This AD is effective April 29,
2021
The Director of the Federal Register
approved the incorporation by reference
of a certain other publication listed in
this AD as of April 14, 2021 (86 FR
13631, March 10, 2021).
The FAA must receive any comments
on this AD by June 1, 2021.
ADDRESSES: You may send comments,
using the procedures found in 14 CFR
11.43 and 11.45, by any of the following
methods:
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SUMMARY:
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• Federal eRulemaking Portal: Go to
https://www.regulations.gov. Follow the
instructions for submitting comments.
• Fax: (202) 493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations,
M–30, West Building Ground Floor,
Room W12–140, 1200 New Jersey
Avenue SE, Washington, DC 20590.
• Hand Delivery: Deliver to Mail
address above between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
For service information identified in
this final rule, contact your local
Sikorsky Field Representative or
Sikorsky’s Service Engineering Group at
Sikorsky Aircraft Corporation, Mailstop
K100, 124 Quarry Road, Trumbull, CT
06611; telephone 1–800–946–4337
(1–800–Winged–S); email wcs_cust_
service_eng.gr-sik@lmco.com. Operators
may also log on to the Sikorsky 360
website at https://
www.sikorsky360.com. 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. It is also available
at https://www.regulations.gov by
searching for and locating Docket No.
FAA–2021–0305.
Examining the AD Docket
You may examine the AD docket at
https://www.regulations.gov by
searching for and locating Docket No.
FAA–2021–0305; 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 street address for
Docket Operations is listed above.
FOR FURTHER INFORMATION CONTACT:
Dorie Resnik, Aviation Safety Engineer,
Boston ACO Branch, FAA, 1200 District
Avenue, Burlington, MA 01803; phone:
(781) 238–7693; fax: (781) 238–7199;
email: dorie.resnik@faa.gov.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued AD 2021–04–16,
Amendment 39–21438 (86 FR 13631,
March 10, 2021) (AD 2021–04–16), for
Sikorsky Model S–92A helicopters with
serial numbers (S/Ns) 920006 through
920334 inclusive. AD 2021–04–16
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required a one-time inspection of the
landing gear and the removal from
service of certain serial-numbered
threaded hinge pins part number (P/N)
92250–12281–101 and certain serialnumbered MLG and NLG actuator pins
P/N 92250–12287–101 and 92250–
12287–103. AD 2021–04–16 was
prompted by the manufacturer
discovering nonconforming threads,
resulting in a life limit reduction on
multiple landing gear components
including threaded hinge pins and MLG
and NLG actuator pins. The FAA issued
AD 2021–04–16 to prevent failure of
components on the MLG and NLG. The
unsafe condition, if not addressed,
could result in damage to the helicopter
and reduced ability to control the
helicopter during landing.
Actions Since AD 2021–04–16 Was
Issued
Since the FAA issued AD 2021–04–
16, it was discovered that the P/Ns for
the actuator pins were incorrect in
certain paragraphs. Portions of the
Required Actions paragraph incorrectly
identified the actuator pin
P/Ns as 92240–12287–101 and 92240–
12287–103; the correct P/Ns are 92250–
12287–101 and 92250–12287–103. The
Installation Prohibition paragraph
incorrectly identified the actuator pin P/
Ns as 92240–12287–101 and 92240–
12287–103; the correct P/Ns are 92250–
12287–101 and 92250–12287–103. The
FAA is issuing this AD to correct these
P/N errors and address the unsafe
condition on these products.
FAA’s Determination
The FAA is issuing this AD because
the agency determined the unsafe
condition described previously is likely
to exist or develop in other products of
the same type design.
Related Service Information Under 1
CFR Part 51
The FAA reviewed Sikorsky Alert
Service Bulletin 92–32–008, Basic Issue,
dated January 21, 2020 (the ASB). The
ASB describes procedures for a one-time
inspection and replacement of nonconforming components on the MLG
and NLG.
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.
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AD Requirements
This AD requires, within 300 hours
time-in-service (TIS) after the effective
date of this AD, visually inspecting the
components of the right MLG assembly,
left MLG assembly, and NLG kit for
threaded hinge pins P/N 92250–12281–
101 and actuator pins P/N 92250–
12287–101 and 92250–12287–103 with
an S/N as specified in the ASB. If there
is any threaded hinge pin P/N 92250–
12281–101 or any MLG or NLG actuator
pin P/N 92250–12287–101 or P/N
92250–12287–103 with an S/N as
specified in the ASB, removing it from
service is required before further flight.
This AD also prohibits, as of the
effective date of this AD, installing any
threaded hinge pin P/N 92250–12281–
101 or actuator pin P/N 92250–12287–
101 or 92250–12287–103 with an S/N as
specified in the ASB, on any helicopter.
Differences Between This AD and the
Service Information
This AD requires replacing only
affected hinge pins and MLG and NLG
actuator pins. The ASB requires
replacing additional parts such as the
MLG and NLG crossbolt and the MLG
and NLG upper nut. The FAA has
determined that the MLG and NLG
crossbolt and the MLG and NLG upper
nut fail in a safe and contained manner
and therefore are not subject to this AD.
Additionally, this AD requires the
one-time inspection within 300 hours
TIS after the effective date of this AD
and requires that any affected hinge
pins and MLG and NLG actuator pins be
removed from service before further
flight. The ASB specifies inspecting and
replacing the affected hinge pins and
MLG and NLG actuator pins occur no
later than January 21, 2021.
Justification for Immediate Adoption
and Determination of the Effective Date
Section 553(b)(3)(B) of the
Administrative Procedure Act (APA) (5
U.S.C. 551 et seq.) authorizes agencies
to dispense with notice and comment
procedures for rules when the agency,
for ‘‘good cause,’’ finds that those
procedures are ‘‘impracticable,
unnecessary, or contrary to the public
interest.’’ Under this section, an agency,
upon finding good cause, may issue a
final rule without providing notice and
seeking comment prior to issuance.
Further, section 553(d) of the APA
authorizes agencies to make rules
effective in less than thirty days, upon
a finding of good cause.
This AD corrects an obvious error in
AD 2021–04–16 that affects compliance
and the public was previously provided
opportunity for comment on the costs of
the AD and required actions.
Accordingly, notice and opportunity
for prior public comment are
unnecessary pursuant to 5 U.S.C.
553(b)(3)(B). In addition, the FAA finds
that good cause exists pursuant to 5
U.S.C. 553(d) for making this
amendment effective in less than 30
days, for the same reasons the FAA
found good cause to forgo notice and
comment.
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–2021–0305
and Project Identifier AD–2021–
00334–R’’ 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 https://
www.regulations.gov, including any
personal information you provide. The
agency will also post a report
summarizing each substantive verbal
contact received about this 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
containing CBI as ‘‘PROPIN.’’ The FAA
will treat such marked submissions as
confidential under the FOIA, and they
will not be placed in the public docket
of this AD. Submissions containing CBI
should be sent to Dorie Resnik,
Aerospace Engineer, Boston ACO
Branch, FAA, 1200 District Avenue,
Burlington, MA 01803; phone: (781)
238–7693; fax: (781) 238–7199; email:
dorie.resnik@faa.gov. Any commentary
that the FAA receives which is not
specifically designated as CBI will be
placed in the public docket for this
rulemaking.
Regulatory Flexibility Act
The requirements of the Regulatory
Flexibility Act (RFA) do not apply when
an agency finds good cause pursuant to
5 U.S.C. 553 to adopt a rule without
prior notice and comment. Because FAA
has determined that it has good cause to
adopt this rule without prior notice and
comment, RFA analysis is not required.
Costs of Compliance
The FAA estimates that this AD
affects 85 helicopters of U.S. registry
and estimates the following costs to
comply with this AD:
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ESTIMATED COSTS
Action
Labor cost
Parts cost
Cost per
product
Cost on U.S.
operators
Visually inspect landing gear (right MLG assembly, left MLG assembly, and NLG kit).
1 work-hour × $85 per hour =
$85 (per landing gear).
$0
$255 (three landing gear installed on each helicopter).
$21,675
The FAA estimates the following
costs to do any necessary replacements
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that are required based on the results of
the inspection. The FAA has no way of
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determining the number of helicopters
that might need these replacements:
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19573
ON-CONDITION COSTS
Action
Labor cost
Replace threaded hinge pin, P/N 92250–12281–101 ...............................
Replace MLG/NLG actuator pin, P/N 92250–12287–101 .........................
Replace MLG/NLG actuator pin, P/N 92250–12287–103 .........................
1 work-hour × $85 per hour = $85 ..
1 work-hour × $85 = $85 ................
1 work-hour × $85 = $85 ................
According to the manufacturer, some
of the costs of this AD may be covered
under warranty, thereby reducing the
cost impact on affected individuals. The
FAA does not control warranty coverage
for affected individuals. As a result, the
FAA has included all costs in its cost
estimate.
Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
Section 106, describes the authority of
the FAA Administrator. Subtitle VII,
Aviation Programs, describes in more
detail the scope of the Agency’s
authority.
The FAA is issuing this rulemaking
under the authority described in
Subtitle VII, Part A, Subpart III, Section
44701, General requirements. Under
that section, Congress charges the FAA
with promoting safe flight of civil
aircraft in air commerce by prescribing
regulations for practices, methods, and
procedures the Administrator finds
necessary for safety in air commerce.
This regulation is within the scope of
that authority because it addresses an
unsafe condition that is likely to exist or
develop on products identified in this
rulemaking action.
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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,
and
(2) Will not affect intrastate aviation
in Alaska.
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,
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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
2021–04–16, Amendment 39–21438 (86
FR 13631, March 10, 2021); and
■ b. Adding the following new
airworthiness directive:
■
■
2021–08–18 Sikorsky Aircraft Corporation
(Sikorsky): Amendment 39–21512;
Docket No. FAA–2021–0305; Project
Identifier AD–2021–00334–R
(a) Effective Date
This airworthiness directive (AD) is
effective April 29, 2021.
(b) Affected ADs
This AD replaces AD 2021–04–16,
Amendment 39–21438 (86 FR 13631, March
10, 2021) (AD 2021–04–16).
(c) Applicability
This AD applies to Sikorsky Model S–92A
helicopters, certificated in any category, with
serial numbers (S/Ns) 920006 through
920334 inclusive.
(d) Subject
Joint Aircraft System Component (JASC)
Code 3220, Nose/Tail Landing Gear and
3210, Main Landing Gear.
(e) Unsafe Condition
This AD was prompted by the discovery
that certain part numbers listed in AD 2021–
04–16 were incorrect. AD 2021–04–16 was
issued after the manufacturer determined
that because of non-conforming threads, due
to a quality escape, the life limit of the
threaded hinge pin and main landing gear
(MLG) and nose landing gear (NLG) actuator
pins was reduced. The FAA is issuing this
AD to correct the errors in AD 2021–04–16
and prevent failure of components on the
MLG and NLG. The unsafe condition, if not
addressed, could result in damage to the
helicopter and reduced ability to control the
helicopter during landing.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
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Parts cost
$4,535
557
609
Cost per
product
$4,620
642
694
(g) Required Actions
Within 300 hours time in service after the
effective date of this AD, visually inspect the
components of the right MLG assembly, left
MLG assembly, and NLG kit for threaded
hinge pins part number (P/N) 92250–12281–
101 and actuator pins P/N 92250–12287–101
and P/N 92250–12287–103 with S/Ns
identified in Table 1 or 2 (threaded hinge
pins) or in Table 1 (actuator pins), in Section
3, the Accomplishment Instructions, in the
Sikorsky Aircraft Corporation Alert Service
Bulletin 92–32–008, Basic Issue, dated
January 21, 2020 (the ASB).
Note 1 to the introductory text of
paragraph (g): See Figures 1 and 2 in Section
3, the Accomplishment Instructions, in the
ASB for guidance on performing the visual
inspection.
(1) If there is any threaded hinge pin, P/
N 92250–12281–101, with an S/N listed in
Table 1 or 2 in the ASB, before further flight,
remove the threaded hinge pin from service.
(2) If there is any MLG or NLG actuator
pin, P/N 92250–12287–101 or P/N 92250–
12287–103, with an S/N listed in Table 1 in
the ASB, before further flight, remove the
actuator pin from service.
(h) Installation Prohibition
As of the effective date of this AD, do not
install any threaded hinge pin 92250–12281–
101 or actuator pin, P/N 92250–12287–101 or
92250–12287–103 with an S/N listed in
Table 1 or 2 in Section 3, the
Accomplishment Instructions, in the ASB, on
any helicopter.
(i) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, Boston 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 local Flight Standards
District Office, as appropriate. If sending
information directly to the manager of the
certification office, send it to the attention of
the person identified in paragraph (j) of this
AD.
(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.
(j) Related Information
For more information about this AD,
contact Dorie Resnik, Aviation Safety
Engineer, Boston ACO Branch, Compliance &
Airworthiness Division, FAA, 1200 District
Avenue, Burlington, MA 01803; phone: (781)
238–7693; fax: (781) 238–7199; email:
dorie.resnik@faa.gov.
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Federal Register / Vol. 86, No. 70 / Wednesday, April 14, 2021 / Rules and Regulations
(k) Material Incorporated by Reference
(1) The Director of the Federal Register
previously 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 the AD specifies otherwise.
(3) The following service information was
approved for IBR on April 14, 2021 (86 FR
13631, March 10, 2021).
(i) Sikorsky Aircraft Corporation Alert
Service Bulletin 92–32–008, Basic Issue,
dated January 21, 2020.
(ii) [Reserved]
(4) For Sikorsky Aircraft Corporation
service information identified in this AD,
contact your local Sikorsky Field
Representative or Sikorsky’s Service
Engineering Group at Sikorsky Aircraft
Corporation, Mailstop K100, 124 Quarry
Road, Trumbull, CT 06611; telephone 1–800–
946–4337 (1–800-Winged-S); email wcs_cust_
service_eng.gr-sik@lmco.com. Operators may
also log on to the Sikorsky 360 website at
https://www.sikorsky360.com.
(5) 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.
(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: fedreg.legal@nara.gov, or go to:
https://www.archives.gov/federal-register/cfr/
ibr-locations.html.
Issued on April 9, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
To view documents
mentioned in this preamble as being
available in the docket, go to https://
www.regulations.gov. Type USCG–
2020–0513 in the ‘‘SEARCH’’ box and
click ‘‘SEARCH.’’ Click on Open Docket
Folder on the line associated with this
rule.
FOR FURTHER INFORMATION CONTACT: If
you have questions on this rule, call or
email: Mr. Lee D. Soule, Bridge
Management Specialist, Ninth Coast
Guard District; telephone 216–902–
6085, email Lee.D.Soule@uscg.mil.
SUPPLEMENTARY INFORMATION:
ADDRESSES:
I. Table of Abbreviations
CFR Code of Federal Regulations
DHS Department of Homeland Security
FR Federal Register
IGLD85 International Great Lakes Datum of
1985
LWD Low Water Datum based on IGLD85
OMB Office of Management and Budget
NPRM Notice of Proposed Rulemaking
(Advance, Supplemental)
§ Section
U.S.C. United States Code
II. Background Information and
Regulatory History
[FR Doc. 2021–07687 Filed 4–12–21; 11:15 am]
IV. Discussion of Comments, Changes
and the Final Rule
We did not receive any comments
from the waterway users.
V. Discussion of Final Rule
The proposed rule will establish the
procedures to move the bridge to allow
rail traffic to cross the bridge while
giving notice to the vessels transiting
the waterway that the bridge will be
lowering. Ten minutes before the bridge
is lowered for train traffic a
crewmember from the train will initiate
a SECURITE call on VHF–FM Marine
Channel 16 that the bridge will be
lowering for train traffic and invite any
concerned mariners to contact the
drawtender on VHF–FM Marine
Channel 12. The drawtender will also
visually monitor for vessel traffic and
listen for the standard bridge opening
signal of one prolonged blast and one
short blast from vessels already
transiting the waterway. After the ten
minute warning, one last SECURITE call
will be made that the bridge will be
lowering for rail traffic five minutes
before lowering. Once the drawtender is
satisfied that it is safe the bridge will be
lowered for rail traffic. Once the rail
traffic has cleared the bridge, the bridge
will be raised and locked in the fully
open to navigation position.
The Delray Connecting Railroad
Bridge, mile 0.34, has had limited
requests for openings and provides
access to Zug Island for vehicles and rail
traffic. The owner of the railroad states
the bridge has been operating with
advance notice illegally without
complaints for several years.
Coast Guard
On October 27, 2020 we published in
the Federal Register (85 FR 68019) a
Notice of Proposed Rule Making. There
we stated why we issued the NPRM,
and invited comments on our proposed
regulatory action. During the 60-day
comment period, we received no
comments.
33 CFR Part 117
III. Legal Authority and Need for Rule
VI. Regulatory Analyses
The Coast Guard has developed this
rule after considering numerous statutes
and Executive Orders related to
rulemaking. Below we summarize our
analyses based on a number of these
statutes and Executive Orders, and we
discuss First Amendment rights of
protesters.
[Docket No. USCG–2020–0513]
The Coast Guard is issuing this rule
under authority 33 U.S.C. 499.
The National Steel Corporation
Railroad Bridge, mile 0.40, the Delray
Connecting Railroad Bridge, mile 0.34,
and the Delray Connecting Railroad
Bridge, mile 0.80, over the River Rouge,
currently open on signal pursuant to 33
CFR 117 and are required to be manned
by a drawtender at each bridge. The
reason for the request to stop continual
drawtender service it that the primary
customer, a still mill on Zug Island, has
been placed into caretaker status,
significantly decreasing the rail traffic
across these bridges.
A. Regulatory Planning and Review
Executive Orders 12866 and 13563
direct agencies to assess the costs and
benefits of available regulatory
alternatives and, if regulation is
necessary, to select regulatory
approaches that maximize net benefits.
Executive Order 13771 directs agencies
to control regulatory costs through a
budgeting process. This rule has not
been designated a ‘‘significant
regulatory action,’’ under Executive
Order 12866. Accordingly, it has not
been reviewed by the Office of
Management and Budget (OMB) and
pursuant to OMB guidance it is exempt
BILLING CODE 4910–13–P
DEPARTMENT OF HOMELAND
SECURITY
RIN 1625–AA09
Drawbridge Operation Regulation;
River Rouge, Detroit, MI
Coast Guard, DHS.
Final rule.
AGENCY:
ACTION:
The Coast Guard is modifying
the operating schedule that governs the
National Steel Corporation Railroad
Bridge, mile 0.40, the Delray Connecting
Railroad Bridge, mile 0.34, and the
Delray Connecting Railroad Bridge, mile
0.80, over the River Rouge. Delray
SUMMARY:
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Connecting Railroad Company, the
owner and operator of these three
bridges, has requested to stop continual
drawtender service and to operate the
two bridges only while trains are
crossing the bridge, leaving them in the
open position at all other times, while
the third bridge would open upon signal
if a 4-hour advance notice is received.
DATES: This rule is effective May 14,
2021.
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]]>Agencies
[Federal Register Volume 86, Number 70 (Wednesday, April 14, 2021)]
[Rules and Regulations]
[Pages 19571-19574]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-07687]
========================================================================
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. 86, No. 70 / Wednesday, April 14, 2021 /
Rules and Regulations
[[Page 19571]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2021-0305; Project Identifier AD-2021-00334-R;
Amendment 39-21512; AD 2021-08-18]
RIN 2120-AA64
Airworthiness Directives; Sikorsky Aircraft Corporation
Helicopters
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule; request for comments.
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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2021-04-16
which applied to certain Sikorsky Aircraft Corporation (Sikorsky) Model
S-92A helicopters. AD 2021-04-16 required a one-time inspection of the
landing gear for components with non-conforming threads and removal of
any non-conforming threaded hinge pin and main landing gear (MLG) and
nose landing gear (NLG) actuator pins. AD 2021-04-16 also prohibited
installing certain part-numbered hinge and actuator pins on any
helicopter. This AD requires the same actions but corrects erroneous
part numbers. This AD was prompted by the discovery that certain part
numbers listed in AD 2021-04-16 are incorrect. The FAA is issuing this
AD to address the unsafe condition on these products.
DATES: This AD is effective April 29, 2021
The Director of the Federal Register approved the incorporation by
reference of a certain other publication listed in this AD as of April
14, 2021 (86 FR 13631, March 10, 2021).
The FAA must receive any comments on this AD by June 1, 2021.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments.
Fax: (202) 493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For service information identified in this final rule, contact your
local Sikorsky Field Representative or Sikorsky's Service Engineering
Group at Sikorsky Aircraft Corporation, Mailstop K100, 124 Quarry Road,
Trumbull, CT 06611; telephone 1-800-946-4337 (1-800-Winged-S); email
[email protected]. Operators may also log on to the
Sikorsky 360 website at https://www.sikorsky360.com. 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. It is also available at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-
0305.
Examining the AD Docket
You may examine the AD docket at https://www.regulations.gov by
searching for and locating Docket No. FAA-2021-0305; 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 street address for Docket
Operations is listed above.
FOR FURTHER INFORMATION CONTACT: Dorie Resnik, Aviation Safety
Engineer, Boston ACO Branch, FAA, 1200 District Avenue, Burlington, MA
01803; phone: (781) 238-7693; fax: (781) 238-7199; email:
[email protected].
SUPPLEMENTARY INFORMATION:
Background
The FAA issued AD 2021-04-16, Amendment 39-21438 (86 FR 13631,
March 10, 2021) (AD 2021-04-16), for Sikorsky Model S-92A helicopters
with serial numbers (S/Ns) 920006 through 920334 inclusive. AD 2021-04-
16 required a one-time inspection of the landing gear and the removal
from service of certain serial-numbered threaded hinge pins part number
(P/N) 92250-12281-101 and certain serial-numbered MLG and NLG actuator
pins P/N 92250-12287-101 and 92250-12287-103. AD 2021-04-16 was
prompted by the manufacturer discovering nonconforming threads,
resulting in a life limit reduction on multiple landing gear components
including threaded hinge pins and MLG and NLG actuator pins. The FAA
issued AD 2021-04-16 to prevent failure of components on the MLG and
NLG. The unsafe condition, if not addressed, could result in damage to
the helicopter and reduced ability to control the helicopter during
landing.
Actions Since AD 2021-04-16 Was Issued
Since the FAA issued AD 2021-04-16, it was discovered that the P/Ns
for the actuator pins were incorrect in certain paragraphs. Portions of
the Required Actions paragraph incorrectly identified the actuator pin
P/Ns as 92240-12287-101 and 92240-12287-103; the correct P/Ns are
92250-12287-101 and 92250-12287-103. The Installation Prohibition
paragraph incorrectly identified the actuator pin P/Ns as 92240-12287-
101 and 92240-12287-103; the correct P/Ns are 92250-12287-101 and
92250-12287-103. The FAA is issuing this AD to correct these P/N errors
and address the unsafe condition on these products.
FAA's Determination
The FAA is issuing this AD because the agency determined the unsafe
condition described previously is likely to exist or develop in other
products of the same type design.
Related Service Information Under 1 CFR Part 51
The FAA reviewed Sikorsky Alert Service Bulletin 92-32-008, Basic
Issue, dated January 21, 2020 (the ASB). The ASB describes procedures
for a one-time inspection and replacement of non-conforming components
on the MLG and NLG.
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.
[[Page 19572]]
AD Requirements
This AD requires, within 300 hours time-in-service (TIS) after the
effective date of this AD, visually inspecting the components of the
right MLG assembly, left MLG assembly, and NLG kit for threaded hinge
pins P/N 92250-12281-101 and actuator pins P/N 92250-12287-101 and
92250-12287-103 with an S/N as specified in the ASB. If there is any
threaded hinge pin P/N 92250-12281-101 or any MLG or NLG actuator pin
P/N 92250-12287-101 or P/N 92250-12287-103 with an S/N as specified in
the ASB, removing it from service is required before further flight.
This AD also prohibits, as of the effective date of this AD, installing
any threaded hinge pin P/N 92250-12281-101 or actuator pin P/N 92250-
12287-101 or 92250-12287-103 with an S/N as specified in the ASB, on
any helicopter.
Differences Between This AD and the Service Information
This AD requires replacing only affected hinge pins and MLG and NLG
actuator pins. The ASB requires replacing additional parts such as the
MLG and NLG crossbolt and the MLG and NLG upper nut. The FAA has
determined that the MLG and NLG crossbolt and the MLG and NLG upper nut
fail in a safe and contained manner and therefore are not subject to
this AD.
Additionally, this AD requires the one-time inspection within 300
hours TIS after the effective date of this AD and requires that any
affected hinge pins and MLG and NLG actuator pins be removed from
service before further flight. The ASB specifies inspecting and
replacing the affected hinge pins and MLG and NLG actuator pins occur
no later than January 21, 2021.
Justification for Immediate Adoption and Determination of the Effective
Date
Section 553(b)(3)(B) of the Administrative Procedure Act (APA) (5
U.S.C. 551 et seq.) authorizes agencies to dispense with notice and
comment procedures for rules when the agency, for ``good cause,'' finds
that those procedures are ``impracticable, unnecessary, or contrary to
the public interest.'' Under this section, an agency, upon finding good
cause, may issue a final rule without providing notice and seeking
comment prior to issuance. Further, section 553(d) of the APA
authorizes agencies to make rules effective in less than thirty days,
upon a finding of good cause.
This AD corrects an obvious error in AD 2021-04-16 that affects
compliance and the public was previously provided opportunity for
comment on the costs of the AD and required actions.
Accordingly, notice and opportunity for prior public comment are
unnecessary pursuant to 5 U.S.C. 553(b)(3)(B). In addition, the FAA
finds that good cause exists pursuant to 5 U.S.C. 553(d) for making
this amendment effective in less than 30 days, for the same reasons the
FAA found good cause to forgo notice and comment.
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-2021-0305 and Project Identifier
AD-2021- 00334-R'' 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
https://www.regulations.gov, including any personal information you
provide. The agency will also post a report summarizing each
substantive verbal contact received about this 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 containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this AD. Submissions containing CBI should be sent to Dorie
Resnik, Aerospace Engineer, Boston ACO Branch, FAA, 1200 District
Avenue, Burlington, MA 01803; phone: (781) 238-7693; fax: (781) 238-
7199; email: [email protected]. Any commentary that the FAA receives
which is not specifically designated as CBI will be placed in the
public docket for this rulemaking.
Regulatory Flexibility Act
The requirements of the Regulatory Flexibility Act (RFA) do not
apply when an agency finds good cause pursuant to 5 U.S.C. 553 to adopt
a rule without prior notice and comment. Because FAA has determined
that it has good cause to adopt this rule without prior notice and
comment, RFA analysis is not required.
Costs of Compliance
The FAA estimates that this AD affects 85 helicopters of U.S.
registry and estimates the following costs to comply with this AD:
Estimated Costs
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Cost on U.S.
Action Labor cost Parts cost Cost per product operators
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Visually inspect landing gear 1 work-hour x $85 $0 $255 (three landing $21,675
(right MLG assembly, left MLG per hour = $85 (per gear installed on
assembly, and NLG kit). landing gear). each helicopter).
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The FAA estimates the following costs to do any necessary
replacements that are required based on the results of the inspection.
The FAA has no way of determining the number of helicopters that might
need these replacements:
[[Page 19573]]
On-Condition Costs
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Cost per
Action Labor cost Parts cost product
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Replace threaded hinge pin, P/N 92250-12281- 1 work-hour x $85 per hour = $85 $4,535 $4,620
101.
Replace MLG/NLG actuator pin, P/N 92250-12287- 1 work-hour x $85 = $85......... 557 642
101.
Replace MLG/NLG actuator pin, P/N 92250-12287- 1 work-hour x $85 = $85......... 609 694
103.
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According to the manufacturer, some of the costs of this AD may be
covered under warranty, thereby reducing the cost impact on affected
individuals. The FAA does not control warranty coverage for affected
individuals. As a result, the FAA has included all costs in its cost
estimate.
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, Section 106, describes the
authority of the FAA Administrator. Subtitle VII, Aviation Programs,
describes in more detail the scope of the Agency's authority.
The FAA is issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701, General requirements.
Under that section, Congress charges the FAA with promoting safe flight
of civil aircraft in air commerce by prescribing regulations for
practices, methods, and procedures the Administrator finds necessary
for safety in air commerce. This regulation is within the scope of that
authority because it addresses an unsafe condition that is likely to
exist or develop on products identified in this rulemaking action.
Regulatory Findings
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, and
(2) Will not affect intrastate aviation in Alaska.
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 2021-04-16, Amendment 39-21438 (86
FR 13631, March 10, 2021); and
0
b. Adding the following new airworthiness directive:
2021-08-18 Sikorsky Aircraft Corporation (Sikorsky): Amendment 39-
21512; Docket No. FAA-2021-0305; Project Identifier AD-2021-00334-R
(a) Effective Date
This airworthiness directive (AD) is effective April 29, 2021.
(b) Affected ADs
This AD replaces AD 2021-04-16, Amendment 39-21438 (86 FR 13631,
March 10, 2021) (AD 2021-04-16).
(c) Applicability
This AD applies to Sikorsky Model S-92A helicopters,
certificated in any category, with serial numbers (S/Ns) 920006
through 920334 inclusive.
(d) Subject
Joint Aircraft System Component (JASC) Code 3220, Nose/Tail
Landing Gear and 3210, Main Landing Gear.
(e) Unsafe Condition
This AD was prompted by the discovery that certain part numbers
listed in AD 2021-04-16 were incorrect. AD 2021-04-16 was issued
after the manufacturer determined that because of non-conforming
threads, due to a quality escape, the life limit of the threaded
hinge pin and main landing gear (MLG) and nose landing gear (NLG)
actuator pins was reduced. The FAA is issuing this AD to correct the
errors in AD 2021-04-16 and prevent failure of components on the MLG
and NLG. The unsafe condition, if not addressed, could result in
damage to the helicopter and reduced ability to control the
helicopter during landing.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
Within 300 hours time in service after the effective date of
this AD, visually inspect the components of the right MLG assembly,
left MLG assembly, and NLG kit for threaded hinge pins part number
(P/N) 92250-12281-101 and actuator pins P/N 92250-12287-101 and P/N
92250-12287-103 with S/Ns identified in Table 1 or 2 (threaded hinge
pins) or in Table 1 (actuator pins), in Section 3, the
Accomplishment Instructions, in the Sikorsky Aircraft Corporation
Alert Service Bulletin 92-32-008, Basic Issue, dated January 21,
2020 (the ASB).
Note 1 to the introductory text of paragraph (g): See Figures 1
and 2 in Section 3, the Accomplishment Instructions, in the ASB for
guidance on performing the visual inspection.
(1) If there is any threaded hinge pin, P/N 92250-12281-101,
with an S/N listed in Table 1 or 2 in the ASB, before further
flight, remove the threaded hinge pin from service.
(2) If there is any MLG or NLG actuator pin, P/N 92250-12287-101
or P/N 92250-12287-103, with an S/N listed in Table 1 in the ASB,
before further flight, remove the actuator pin from service.
(h) Installation Prohibition
As of the effective date of this AD, do not install any threaded
hinge pin 92250-12281-101 or actuator pin, P/N 92250-12287-101 or
92250-12287-103 with an S/N listed in Table 1 or 2 in Section 3, the
Accomplishment Instructions, in the ASB, on any helicopter.
(i) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Boston 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 local Flight Standards District
Office, as appropriate. If sending information directly to the
manager of the certification office, send it to the attention of the
person identified in paragraph (j) of this AD.
(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.
(j) Related Information
For more information about this AD, contact Dorie Resnik,
Aviation Safety Engineer, Boston ACO Branch, Compliance &
Airworthiness Division, FAA, 1200 District Avenue, Burlington, MA
01803; phone: (781) 238-7693; fax: (781) 238-7199; email:
[email protected].
[[Page 19574]]
(k) Material Incorporated by Reference
(1) The Director of the Federal Register previously 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 the AD specifies otherwise.
(3) The following service information was approved for IBR on
April 14, 2021 (86 FR 13631, March 10, 2021).
(i) Sikorsky Aircraft Corporation Alert Service Bulletin 92-32-
008, Basic Issue, dated January 21, 2020.
(ii) [Reserved]
(4) For Sikorsky Aircraft Corporation service information
identified in this AD, contact your local Sikorsky Field
Representative or Sikorsky's Service Engineering Group at Sikorsky
Aircraft Corporation, Mailstop K100, 124 Quarry Road, Trumbull, CT
06611; telephone 1-800-946-4337 (1-800-Winged-S); email
[email protected]. Operators may also log on to
the Sikorsky 360 website at https://www.sikorsky360.com.
(5) 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.
(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: https://www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued on April 9, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2021-07687 Filed 4-12-21; 11:15 am]
BILLING CODE 4910-13-P
