This section of the FEDERAL REGISTER

contains notices to the public of the proposed

issuance of rules and regulations. The

purpose of these notices is to give interested

persons an opportunity to participate in the

rule making prior to the adoption of the final

rules.

Proposed Rules Federal Register

14782 

Vol. 89, No. 41 

Thursday, February 29, 2024 

NUCLEAR REGULATORY 

COMMISSION 

10 CFR Parts 50, 52, 71, and 72 

[NRC–2024–0036] 

Draft Regulatory Guide: Preparing 

Probabilistic Fracture Mechanics 

Submittals 

AGENCY: Nuclear Regulatory 

Commission. 

ACTION: Draft guide; request for 

comment. 

SUMMARY: The U.S. Nuclear Regulatory 

Commission (NRC) is issuing for public 

comment a draft Regulatory Guide (DG), 

DG–1422, ‘‘Preparing Probabilistic 

Fracture Mechanics Submittals.’’ This 

DG is proposed Revision 1 to Regulatory 

Guide (RG) 1.245, ‘‘Preparing 

Probabilistic Fracture Mechanics 

Submittals.’’ DG–1422 describes an 

approach that is acceptable to the staff 

of the NRC for performing probabilistic 

fracture mechanics (PFM) analyses in 

support of regulatory applications. 

DATES: Submit comments by April 1, 

2024. Comments received after this date 

will be considered if it is practical to do 

so, but the NRC is able to ensure 

consideration only for comments 

received on or before this date. 

ADDRESSES: You may submit comments 

by any of the following methods 

however, the NRC encourages electronic 

comment submission through the 

Federal rulemaking website: 

• Federal rulemaking website: Go to

https://www.regulations.gov and search 

for Docket ID NRC–2024–0036. Address 

questions about Docket IDs in 

Regulations.gov to Stacy Schumann; 

telephone: 301–415–0624; email: Stacy.

Schumann@nrc.gov. For technical 

questions, contact the individuals listed 

in the FOR FURTHER INFORMATION

CONTACT section of this document. 

• Mail comments to: Office of

Administration, Mail Stop: TWFN–7– 

A60M, U.S. Nuclear Regulatory 

Commission, Washington, DC 20555– 

0001, ATTN: Program Management, 

Announcements and Editing Staff. 

For additional direction on obtaining 

information and submitting comments, 

see ‘‘Obtaining Information and 

Submitting Comments’’ in the 

SUPPLEMENTARY INFORMATION section of 

this document. 

FOR FURTHER INFORMATION CONTACT: 

Michael A. Eudy, telephone: 301–415– 

3104; email: Michael.Eudy@nrc.gov and 

Patrick Raynaud, telephone: 301–415– 

1987; email: Patrick.Raynaud@nrc.gov. 

Both are staff of the Office of Nuclear 

Regulatory Research at the U.S. Nuclear 

Regulatory Commission, Washington, 

DC 20555–0001. 

SUPPLEMENTARY INFORMATION: 

I. Obtaining Information and

Submitting Comments

A. Obtaining Information

Please refer to Docket ID NRC–2024–

0036 when contacting the NRC about 

the availability of information for this 

action. You may obtain publicly 

available information related to this 

action by any of the following methods: 

• Federal Rulemaking Website: Go to

https://www.regulations.gov and search 

for Docket ID NRC–2024–0036. 

• NRC’s Agencywide Documents

Access and Management System 

(ADAMS): You may obtain publicly 

available documents online in the 

ADAMS Public Documents collection at 

https://www.nrc.gov/reading-rm/ 

adams.html. To begin the search, select 

‘‘Begin Web-based ADAMS Search.’’ For 

problems with ADAMS, please contact 

the NRC’s Public Document Room (PDR) 

reference staff at 1–800–397–4209, at 

301–415–4737, or by email to PDR.

Resource@nrc.gov. The ADAMS 

accession number for each document 

referenced (if it is available in ADAMS) 

is provided the first time that it is 

mentioned in this document. 

• NRC’s PDR: The PDR, where you

may examine and order copies of 

publicly available documents, is open 

by appointment. To make an 

appointment to visit the PDR, please 

send an email to PDR.Resource@nrc.gov 

or call 1–800–397–4209 or 301–415– 

4737, between 8 a.m. and 4 p.m. eastern 

time (ET), Monday through Friday, 

except Federal holidays. 

B. Submitting Comments

The NRC encourages electronic

comment submission through the 

Federal rulemaking website (https://

www.regulations.gov). Please include 

Docket ID NRC–2024–0036 in your 

comment submission. 

The NRC cautions you not to include 

identifying or contact information that 

you do not want to be publicly 

disclosed in your comment submission. 

The NRC will post all comment 

submissions at https://

www.regulations.gov as well as enter the 

comment submissions into ADAMS. 

The NRC does not routinely edit 

comment submissions to remove 

identifying or contact information. 

If you are requesting or aggregating 

comments from other persons for 

submission to the NRC, then you should 

inform those persons not to include 

identifying or contact information that 

they do not want to be publicly 

disclosed in their comment submission. 

Your request should state that the NRC 

does not routinely edit comment 

submissions to remove such information 

before making the comment 

submissions available to the public or 

entering the comment into ADAMS. 

II. Additional Information

The NRC is issuing for public

comment a DG in the NRC’s ‘‘Regulatory 

Guide’’ series. This series was 

developed to describe methods that are 

acceptable to the NRC staff for 

implementing specific parts of the 

agency’s regulations, to explain 

techniques that the staff uses in 

evaluating specific issues or postulated 

events, and to describe information that 

the staff needs in its review of 

applications for permits and licenses. 

The DG, entitled ‘‘Preparing 

Probabilistic Fracture Mechanics 

Submittals,’’ is temporarily identified by 

its task number, DG–1422 (ADAMS 

Accession No. ML23291A298). 

This DG presents proposed guidance 

on justifying the acceptability of the 

methods used to generate and report 

PFM results. This DG does not describe 

how the results of PFM may be used to 

support a regulatory application. 

Regulatory applications typically 

contain information other than fracture 

mechanics analyses; this DG does not 

address the review of this other 

information. The proposed revisions 

made to RG 1.245, Revision 0 clarify 

guidance for applications that leverage 

risk insights, such as PFM. These 

changes are reflected in Regulatory 

Positions 2.1, ‘‘Regulatory Context,’’ and 


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Federal Register / Vol. 89, No. 41 / Thursday, February 29, 2024 / Proposed Rules 14783 

2.2, ‘‘Information Made Available to the 

NRC Staff with a Probabilistic Fracture 

Mechanics Submittal.’’ 

The staff is also issuing for public 

comment a draft regulatory analysis 

(ADAMS Accession No. ML23291A299). 

The staff developed the regulatory 

analysis to assess the value of revising 

RG 1.245, Revision 0, as well as 

alternative courses of action. 

As noted in the Federal Register on 

December 9, 2022 (87 FR 75671), this 

document is being published in the 

‘‘Proposed Rules’’ section of the Federal 

Register to comply with publication 

requirements under chapter I of title 1 

of the Code of Federal Regulations 

(CFR). 

III. Backfitting, Forward Fitting, and

Issue Finality

Issuance of DG–1422, if finalized, 

would not constitute backfitting as 

defined in 10 CFR 50.109, ‘‘Backfitting,’’ 

and as described in NRC Management 

Directive (MD) 8.4, ‘‘Management of 

Backfitting, Forward Fitting, Issue 

Finality, and Information Requests’’; 

affect issue finality of any approval 

issued under 10 CFR part 52, ‘‘Licenses, 

Certificates, and Approvals for Nuclear 

Power Plants’’; or constitute forward 

fitting as defined in MD 8.4, because, as 

explained in this DG, licensees would 

not be required to comply with the 

positions set forth in this DG. 

IV. Submitting Suggestions for

Improvement of Regulatory Guides

A member of the public may, at any 

time, submit suggestions to the NRC for 

improvement of existing RGs or for the 

development of new RGs. Suggestions 

can be submitted on the NRC’s public 

website at https://www.nrc.gov/readingrm/doc-collections/reg-guides/ 

contactus.html. Suggestions will be 

considered in future updates and 

enhancements to the ‘‘Regulatory 

Guide’’ series. 

Dated: February 23, 2024. 

For the Nuclear Regulatory Commission. 

Meraj Rahimi, 

Chief, Regulatory Guide and Programs 

Management Branch, Division of Engineering, 

Office of Nuclear Regulatory Research. 

[FR Doc. 2024–04222 Filed 2–28–24; 8:45 am] 

BILLING CODE 7590–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–0230; Project 

Identifier AD–2023–01064–Q] 

RIN 2120–AA64 

Airworthiness Directives; Various 

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 all 

airplanes with certain Pacific Scientific 

Company rotary buckle assemblies 

(buckles) installed. This AD was 

prompted by a report of a manufacturing 

defect in the screws used inside the 

buckle. This proposed AD would 

require inspecting the buckle screws, 

and depending on the results, 

reidentifying the buckle, replacing the 

screws and reidentifying the buckle, or 

replacing the buckle. This proposed AD 

would also prohibit installing certain 

buckles. 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 April 15, 2024. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to

regulations.gov. Follow the instructions 

for submitting comments. 

• Fax: 202–493–2251.

• Mail: U.S. Department of

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC 20590. 

• Hand Delivery: Deliver to Mail

address above between 9 a.m. and 5 

p.m., Monday through Friday, except

Federal holidays.

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2024–0230; 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. 

Material Incorporated by Reference: 

• For service information identified

in this NPRM, contact Parker Meggitt 

Services, 1785 Voyager Avenue, Simi 

Valley, CA 93063; phone 877–666–0712; 

email TechSupport@meggitt.com; 

website meggitt.com/services_and_

support/customer_experience/updateon-buckle-assembly-service-bulletins. 

• You may view this service

information at the FAA, Airworthiness 

Products Section, Operational Safety 

Branch, 2200 South 216th Street, Des 

Moines, WA. For information on the 

availability of this material at the FAA, 

call 206–231–3195. It is also available at 

regulations.gov by searching for and 

locating Docket No. FAA–2024–0230. 

FOR FURTHER INFORMATION CONTACT: 

David Kim, Aviation Safety Engineer, 

FAA, 3960 Paramount Boulevard, 

Lakewood, CA 90712; phone 562–627– 

5274; email david.kim@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–2024–0230; Project Identifier AD– 

2023–01064–Q’’ 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 

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 


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