Airworthiness Directives; Gulfstream Aerospace LP Airplanes
| Published date | 10 June 2021 |
| Record Number | 2021-12170 |
| Section | Proposed rules |
| Court | Federal Aviation Administration |
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Federal Register / Vol. 86, No. 110 / Thursday, June 10, 2021 / Proposed Rules
electronically should be provided in
PDF (preferred), Microsoft Word or
Excel, WordPerfect, or text (ASCII) file
format. Provide documents that are not
secured, that are written in English, and
that are free of any defects or viruses.
Documents should not contain special
characters or any form of encryption
and, if possible, they should carry the
electronic signature of the author.
Campaign form letters. Please submit
campaign form letters by the originating
organization in batches of between 50 to
500 form letters per PDF or as one form
letter with a list of supporters’ names
compiled into one or more PDFs. This
reduces comment processing and
posting time.
Confidential Business Information.
Pursuant to 10 CFR 1004.11, any person
submitting information that he or she
believes to be confidential and exempt
by law from public disclosure should
submit via email two well-marked
copies: One copy of the document
marked ‘‘confidential’’ including all the
information believed to be confidential,
and one copy of the document marked
‘‘non-confidential’’ with the information
believed to be confidential deleted. DOE
will make its own determination about
the confidential status of the
information and treat it according to its
determination.
It is DOE’s policy that all comments
may be included in the public docket,
without change and as received,
including any personal information
provided in the comments (except
information deemed to be exempt from
public disclosure).
E. Issues on Which DOE Seeks Comment
Although DOE welcomes comments
on any aspect of this proposed
determination, DOE is particularly
interested in receiving comments and
views of interested parties concerning
the following issues:
(1) DOE requests data and information
related to achievable R-values of
polyurethane foam insulation on
jacketed UFHWSTs at thicknesses above
3 inches. DOE also seeks comment on
its understanding of the difficulties
associated with applying more than 3
inches of foam to jacketed UFHWSTs.
(2) DOE seeks comment on the
considered efficiency levels analyzed
for UFHWSTs. Additionally, DOE seeks
comment on its assumption that
polyurethane foam has an R-value per
inch of 6.25, up to a maximum
thickness of 3 inches.
(3) DOE requests comment on the
inputs and assumptions used in its
engineering analysis. In particular, DOE
requests input on its choice of
representative volumes, its assumptions
about the typical coverage of various
insulation materials, and its estimated
R-values for each insulation material at
each EL considered.
(4) DOE requests comment on the
appropriateness of its assumption
regarding the use of a constant internal
water temperature of 140 °F.
(5) DOE requests comment on its
assumption regarding the typical
ambient temperatures for UFHWSTs
installed indoors and outdoors.
(6) DOE requests comment on its
assumption that 10 percent of all
UFHWST would be installed outdoors.
DOE requests information on the typical
capacities and R-values of outdoor
equipment.
(7) DOE requests comment on its
assumption that outdoor installations
would be limited to climate zones 1A,
2A, and 2B. DOE requests information
or data on the fraction of installations
that occur within these, or other,
climate zones.
(8) DOE requests comment on its Tank
Thermal Loss Model.
(9) DOE requests data and information
which can be used to estimate
installation costs of UFHWSTs with
modified dimensions.
(10) DOE requests information and
data characterizing the types of
buildings where installation difficulties
are likely to occur and to lead to
increased installation cost, as well as
the frequency with which such
installation problems may arise.
(11) DOE requests information and
data characterizing the average
installation costs for UFHWSTs at all
different storage volumes.
(12) DOE requests information and
data characterizing the circumstances
that would drive the decision to
potentially restructure existing building
spaces, including doorways and
mechanical rooms, when installing a
replacement UFHWST. For example, is
the decision driven by a minimum
building code requirement for door
openings?
(13) DOE requests comments
generally regarding its stock analysis for
UFHWSTs.
(14) DOE requests comment regarding
its assumption that there would be only
one UFWHST per building.
(15) DOE requests comment regarding
its disaggregation of UFHWST stock by
sector.
(16) DOE requests comment on its
assumption that UFHWSTs are not used
for industrial process hot water storage.
(17) DOE requests comment on its
assumption of a 12-year lifetime for
UFHWSTs similar to commercial
electric hot water storage tanks.
(18) DOE requests comment on its use
of AEO 2021 trends as a scaler to project
shipments to new construction.
(19) DOE requests comment on its
distribution of shipments by storage
volume, and on its assumption that the
distribution of shipments by storage
volume does not change over time.
(20) DOE requests comment regarding
its applied efficiency distribution that
99 percent of all units sold are currently
at baseline (R–12.5).
VIII. Approval of the Office of the
Secretary
The Secretary of Energy has approved
publication of this notification of
proposed determination.
Signing Authority
This document of the Department of
Energy was signed on June 3, 2021, by
Kelly Speakes-Backman, Principal
Deputy Assistant Secretary and Acting
Assistant Secretary for Energy Efficiency
and Renewable Energy, pursuant to
delegated authority from the Secretary
of Energy. That document with the
original signature and date is
maintained by DOE. For administrative
purposes only, and in compliance with
requirements of the Office of the Federal
Register, the undersigned DOE Federal
Register Liaison Officer has been
authorized to sign and submit the
document in electronic format for
publication, as an official document of
the Department of Energy. This
administrative process in no way alters
the legal effect of this document upon
publication in the Federal Register.
Signed in Washington, DC, on June 3,
2021.
Treena V. Garrett,
Federal Register Liaison Officer, U.S.
Department of Energy.
[FR Doc. 2021–11957 Filed 6–9–21; 8:45 am]
BILLING CODE 6450–01–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2021–0459; Project
Identifier MCAI–2021–00129–T]
RIN 2120–AA64
Airworthiness Directives; Gulfstream
Aerospace LP Airplanes
AGENCY
: Federal Aviation
Administration (FAA), DOT.
ACTION
: Notice of proposed rulemaking
(NPRM).
SUMMARY
: The FAA proposes to adopt a
new airworthiness directive (AD) for
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Federal Register / Vol. 86, No. 110 / Thursday, June 10, 2021 / Proposed Rules
certain Gulfstream Aerospace LP Model
Gulfstream G280 airplanes. This
proposed AD was prompted by a report
that during full-scale fatigue testing, a
crack was found in the area of the
attachment of the wing rib 0 to the front
spar. This proposed AD would require
non-destructive testing on the forward
(front) spar vertical stiffener and rib 0
for any cracking, installation of a
doubler to the forward (front) spar and
rib 0 attachment, and repair if
necessary, as specified in a Civil
Aviation Authority of Israel (CAAI) AD,
which is proposed for incorporation by
reference. The FAA is proposing this
AD to address the unsafe condition on
these products.
DATES
: The FAA must receive comments
on this proposed AD by July 26, 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 material that will be incorporated
by reference (IBR) in this AD, contact
The Civil Aviation Authority of Israel
(CAAI), P.O. Box 1101, Golan Street,
Airport City, 70100, Israel; telephone
972–3–9774665; fax 972–3–9774592;
email aip@mot.gov.il. You may find this
IBR material on the CAAI website at
https://www.caa.gov.il. You may view
this IBR material at the FAA,
Airworthiness Products Section,
Operational Safety Branch, 2200 South
216th St., Des Moines, WA. For
information on the availability of this
material at the FAA, call 206–231–3195.
It is also available in the AD docket at
https://www.regulations.gov by
searching for and locating Docket No.
FAA–2021–0459.
Examining the AD Docket
You may examine the AD docket at
https://www.regulations.gov by
searching for and locating Docket No.
FAA–2021–0459; or in person at Docket
Operations between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal
holidays. The AD docket contains this
NPRM, any comments received, and
other information. The street address for
Docket Operations is listed above.
FOR FURTHER INFORMATION CONTACT
: Tom
Rodriguez, Aerospace Engineer, Large
Aircraft Section, International
Validation Branch, FAA, 2200 South
216th St., Des Moines, WA 98198;
telephone and fax 206–231–3226; email
Tom.Rodriguez@faa.gov.
SUPPLEMENTARY INFORMATION
:
Comments Invited
The FAA invites you to send any
written relevant data, views, or
arguments about this proposal. Send
your comments to an address listed
under
ADDRESSES
. Include ‘‘Docket No.
FAA–2021–0459; Project Identifier
MCAI–2021–00129–T’’ at the beginning
of your comments. The most helpful
comments reference a specific portion of
the proposal, 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 the proposal
because of those comments.
Except for Confidential Business
Information (CBI) as described in the
following paragraph, and other
information as described in 14 CFR
11.35, the FAA will post all comments
received, without change, to https://
www.regulations.gov, including any
personal information you provide. The
agency will also post a report
summarizing each substantive verbal
contact received about this proposed
AD.
Confidential Business Information
CBI is commercial or financial
information that is both customarily and
actually treated as private by its owner.
Under the Freedom of Information Act
(FOIA) (5 U.S.C. 552), CBI is exempt
from public disclosure. If your
comments responsive to this NPRM
contain commercial or financial
information that is customarily treated
as private, that you actually treat as
private, and that is relevant or
responsive to this NPRM, it is important
that you clearly designate the submitted
comments as CBI. Please mark each
page of your submission containing CBI
as ‘‘PROPIN.’’ The FAA will treat such
marked submissions as confidential
under the FOIA, and they will not be
placed in the public docket of this
NPRM. Submissions containing CBI
should be sent to Tom Rodriguez,
Aerospace Engineer, Large Aircraft
Section, International Validation
Branch, FAA, 2200 South 216th St., Des
Moines, WA 98198; telephone and fax
206–231–3226; email Tom.Rodriguez@
faa.gov. Any commentary that the FAA
receives which is not specifically
designated as CBI will be placed in the
public docket for this rulemaking.
Background
The CAAI, which is the aviation
authority for Israel, has issued CAAI AD
I–57–2020–06–01, dated January 27,
2021 (CAAI AD I–57–2020–06–01) (also
referred to as the Mandatory Continuing
Airworthiness Information, or the
MCAI), to correct an unsafe condition
for certain Gulfstream Aerospace LP
Model Gulfstream G280 airplanes.
This proposed AD was prompted by
a report that during full-scale fatigue
testing, a crack was found in the area of
the attachment of the wing rib 0 to the
front spar. The FAA is proposing this
AD to address any cracking at the area
of the wing rib 0 to the front spar, which
could affect the structural integrity of
the wing. See the MCAI for additional
background information.
Related Service Information Under 1
CFR Part 51
CAAI AD I–57–2020–06–01 specifies
procedures for non-destructive testing
(high frequency, mid frequency, bolt
hole eddy current inspections, and a
liquid (dye) penetrant inspection) for
cracking on the forward (front) spar
vertical stiffener and rib 0, installation
of a doubler to the forward (front) spar
and rib 0 attachment, and repair if
necessary. 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.
FAA’s Determination and Requirements
of This Proposed AD
This product has been approved by
the aviation authority of another
country, and is approved for operation
in the United States. Pursuant to the
FAA’s bilateral agreement with the State
of Design Authority, the FAA has been
notified of the unsafe condition
described in the MCAI referenced
above. The FAA is proposing this AD
because the FAA evaluated all the
relevant information and determined
the unsafe condition described
previously is likely to exist or develop
in other products of the same type
design.
Proposed AD Requirements
This proposed AD would require
accomplishing the actions specified in
CAAI AD I–57–2020–06–01 described
previously, as incorporated by
reference, except for any differences
identified as exceptions in the
regulatory text of this AD.
Explanation of Required Compliance
Information
In the FAA’s ongoing efforts to
improve the efficiency of the AD
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process, the FAA initially worked with
Airbus and EASA to develop a process
to use certain EASA ADs as the primary
source of information for compliance
with requirements for corresponding
FAA ADs. The FAA has since
coordinated with other manufacturers
and civil aviation authorities (CAAs) to
use this process. As a result, CAAI AD
I–57–2020–06–01 will be incorporated
by reference in the FAA final rule. This
proposed AD would, therefore, require
compliance with CAAI AD I–57–2020–
06–01 in its entirety, through that
incorporation, except for any differences
identified as exceptions in the
regulatory text of this proposed AD.
Service information specified in CAAI
AD I–57–2020–06–01 that is required
for compliance with CAAI AD I–57–
2020–06–01 will be available on the
internet at https://www.regulations.gov
by searching for and locating Docket No.
FAA–2021–0459 after the FAA final
rule is published.
Costs of Compliance
The FAA estimates that this proposed
AD affects 23 airplanes of U.S. registry.
The FAA estimates the following costs
to comply with this proposed AD:
E
STIMATED
C
OSTS FOR
R
EQUIRED
A
CTIONS
Labor cost Parts cost Cost per
product Cost on U.S.
operators
80 work-hours × $85 per hour = $6,800 * ................................................................................... $400 * $7,200 *$165,600
* If the actions are accomplished during 4C Check.
The FAA has received no definitive
data on which to base the cost estimates
for the repair specified in this proposed
AD.
According to the manufacturer, some
or all of the costs of this proposed AD
may be covered under warranty, thereby
reducing the cost impact on affected
oeprators. The FAA does not control
warranty coverage for affected operators.
As a result, the FAA has included all
known costs in the cost estimate.
Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
section 106, describes the authority of
the FAA Administrator. Subtitle VII:
Aviation Programs, describes in more
detail the scope of the Agency’s
authority.
The FAA is issuing this rulemaking
under the authority described in
Subtitle VII, Part A, Subpart III, Section
44701: General requirements. Under
that section, Congress charges the FAA
with promoting safe flight of civil
aircraft in air commerce by prescribing
regulations for practices, methods, and
procedures the Administrator finds
necessary for safety in air commerce.
This regulation is within the scope of
that authority because it addresses an
unsafe condition that is likely to exist or
develop on products identified in this
rulemaking action.
Regulatory Findings
The FAA determined that this
proposed AD would not have federalism
implications under Executive Order
13132. This proposed AD would not
have a substantial direct effect on the
States, on the relationship between the
national Government and the States, or
on the distribution of power and
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify this proposed regulation:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
(2) Would not affect intrastate
aviation in Alaska, and
(3) Would not have a significant
economic impact, positive or negative,
on a substantial number of small entities
under the criteria of the Regulatory
Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
The Proposed Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA proposes to amend 14 CFR part
39 as follows:
PART 39—AIRWORTHINESS
DIRECTIVES
■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 adding
the following new airworthiness
directive:
Gulfstream Aerospace LP: Docket No. FAA–
2021–0459; Project Identifier MCAI–
2021–00129–T.
(a) Comments Due Date
The FAA must receive comments on this
airworthiness directive (AD) by July 26, 2021.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Gulfstream Aerospace
LP Model Gulfstream G280 airplanes,
certificated in any category, as identified in
The Civil Aviation Authority of Israel (CAAI)
AD I–57–2020–06–01, dated January 27, 2021
(CAAI AD I–57–2020–06–01).
(d) Subject
Air Transport Association (ATA) of
America Code 57, Wings.
(e) Reason
This AD was prompted by a report that
during full-scale fatigue testing, a crack was
found in the area of the attachment of the
wing rib 0 to the front spar. The FAA is
issuing this AD to address any cracking at the
area of the wing rib 0 to the front spar, which
could affect the structural integrity of the
wing.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Requirements
Except as specified in paragraph (h) of this
AD: Comply with all required actions and
compliance times specified in, and in
accordance with, CAAI AD I–57–2020–06–
01.
(h) Exceptions to CAAI AD I–57–2020–06–01
Where CAAI AD I–57–2020–06–01 requires
compliance ‘‘not later than 5,000 flight
cycles,’’ this AD requires compliance before
the accumulation of 5,000 total flight cycles
since the date of issuance of the original
Israeli airworthiness certificate or the date of
issuance of the original Israeli export
certificate of airworthiness.
(i) No Reporting Requirement
Although the service information
referenced in CAAI AD I–57–2020–06–01
specifies to submit certain information to the
manufacturer, this AD does not include that
requirement.
(j) Other FAA AD Provisions
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, Large Aircraft
Section, International Validation Branch,
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FAA, has the authority to approve AMOCs
for this AD, if requested using the procedures
found in 14 CFR 39.19. In accordance with
14 CFR 39.19, send your request to your
principal inspector or responsible Flight
Standards Office, as appropriate. If sending
information directly to the Large Aircraft
Section, International Validation Branch,
send it to the attention of the person
identified in paragraph (k)(2) of this AD.
Information may be emailed to: 9-AVS-AIR-
730-AMOC@faa.gov. Before using any
approved AMOC, notify your appropriate
principal inspector, or lacking a principal
inspector, the manager of the responsible
Flight Standards Office.
(2) Contacting the Manufacturer: For any
requirement in this AD to obtain instructions
from a manufacturer, the instructions must
be accomplished using a method approved
by the Manager, Large Aircraft Section,
International Validation Branch, FAA; or
CAAI; or CAAI’s authorized Designee. If
approved by the CAAI Designee, the approval
must include the Designee’s authorized
signature.
(k) Related Information
(1) For CAAI AD I–57–2020–06–01, contact
The Civil Aviation Authority of Israel
(CAAI), P.O. Box 1101, Golan Street, Airport
City, 70100, Israel; telephone 972–3–
9774665; fax 972–3–9774592; email aip@
mot.gov.il. You may find this CAAI AD on
the CAAI website at https://www.caa.gov.il.
You may view this material at the FAA,
Airworthiness Products Section, Operational
Safety Branch, 2200 South 216th St., Des
Moines, WA. For information on the
availability of this material at the FAA, call
206–231–3195. This material may be found
in the AD docket on the internet at https://
www.regulations.gov by searching for and
locating Docket No. FAA–2021–0459.
(2) For more information about this AD,
contact Tom Rodriguez, Aerospace Engineer,
Large Aircraft Section, International
Validation Branch, FAA, 2200 South 216th
St., Des Moines, WA 98198; telephone and
fax 206–231–3226; email Tom.Rodriguez@
faa.gov.
Issued on June 6, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2021–12170 Filed 6–9–21; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2021–0455; Project
Identifier 2018–SW–031–AD]
RIN 2120–AA64
Airworthiness Directives; Leonardo
S.p.a. Helicopters
AGENCY
: Federal Aviation
Administration (FAA), DOT.
ACTION
: Notice of proposed rulemaking
(NPRM).
SUMMARY
: The FAA proposes to adopt a
new airworthiness directive (AD) for
certain Leonardo S.p.a. Model AW189
helicopters. This proposed AD was
prompted by fatigue testing and
analyses. This proposed AD would
require establishing a life limit for a
certain part-numbered tail gearbox
fitting. The FAA is proposing this AD to
address the unsafe condition on these
products.
DATES
: The FAA must receive comments
on this proposed AD by July 26, 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 between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal
holidays.
For service information identified in
this NPRM, contact Leonardo S.p.A.
Helicopters, Emanuele Bufano, Head of
Airworthiness, Viale G.Agusta 520,
21017 C.Costa di Samarate (Va) Italy;
telephone +39–0331–225074; fax +39–
0331–229046; or at https://
www.leonardocompany.com/en/home.
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.
Examining the AD Docket
You may examine the AD docket at
https://www.regulations.gov by
searching for and locating Docket No.
FAA–2021–0455; or in person at Docket
Operations between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal
holidays. The AD docket contains this
NPRM, the European Aviation Safety
Agency (now European Union Aviation
Safety Agency) (EASA) AD, any
comments received, and other
information. The street address for
Docket Operations is listed above.
FOR FURTHER INFORMATION CONTACT
:
Kristi Bradley, Program Manager, COS
Program Management Section,
Operational Safety Branch, Compliance
& Airworthiness Division, FAA, 10101
Hillwood Pkwy., Fort Worth, TX 76177;
telephone (817) 222–5110; email
kristin.bradley@faa.gov.
SUPPLEMENTARY INFORMATION
:
Comments Invited
The FAA invites you to send any
written relevant data, views, or
arguments about this proposal. Send
your comments to an address listed
under
ADDRESSES
. Include ‘‘Docket No.
FAA–2021–0455; Project Identifier
2018–SW–031–AD’’ at the beginning of
your comments. The most helpful
comments reference a specific portion of
the proposal, 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 proposal
because of those comments.
Except for Confidential Business
Information (CBI) as described in the
following paragraph, and other
information as described in 14 CFR
11.35, the FAA will post all comments
received, without change, to https://
www.regulations.gov, including any
personal information you provide. The
agency will also post a report
summarizing each substantive verbal
contact received about this NPRM.
Confidential Business Information
CBI is commercial or financial
information that is both customarily and
actually treated as private by its owner.
Under the Freedom of Information Act
(FOIA) (5 U.S.C. 552), CBI is exempt
from public disclosure. If your
comments responsive to this NPRM
contain commercial or financial
information that is customarily treated
as private, that you actually treat as
private, and that is relevant or
responsive to this NPRM, it is important
that you clearly designate the submitted
comments as CBI. Please mark each
page of your submission containing CBI
as ‘‘PROPIN.’’ The FAA will treat such
marked submissions as confidential
under the FOIA, and they will not be
placed in the public docket of this
NPRM. Submissions containing CBI
should be sent to Kristi Bradley,
Program Manager, COS Program
Management Section, Operational
Safety Branch, Compliance &
Airworthiness Division, FAA, 10101
Hillwood Pkwy., Fort Worth, TX 76177;
telephone (817) 222–5110; email
kristin.bradley@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.
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