ML24029A010
| ML24029A010 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 01/29/2024 |
| From: | Mel Gray Division of Operating Reactors |
| To: | Rhoades D Constellation Energy Generation, Constellation Nuclear |
| References | |
| IR 2024010 | |
| Download: ML24029A010 (1) | |
See also: IR 05000317/2024010
Text
January 29, 2024
David P. Rhoades
Senior Vice President
Constellation Energy Generation, LLC
President and Chief Nuclear Officer (CNO)
Constellation Nuclear
4300 Winfield Road
Warrenville, IL 60555
SUBJECT:
CALVERT CLIFFS NUCLEAR POWER PLANT, UNITS 1 AND 2 -
REQUEST FOR INFORMATION AND NOTIFICATION OF CONDUCT OF IP
71111.21.N.04, AGE-RELATED DEGRADATION, REFERENCE
INSPECTION REPORT 05000317/2024010 AND 05000318/2024010
Dear David Rhoades:
The purpose of this letter is to notify you that the U.S. Nuclear Regulatory Commission (NRC)
staff will conduct IP 71111.21N.04, Age-Related Degradation, baseline inspection at the Calvert
Cliffs Nuclear Power Plant in April 2024. Kevin Mangan, a Senior Reactor Inspector from the
NRCs Region I Office, will lead the inspection team. The team will be composed of personnel
from the NRC Region I Office. The inspection will be conducted in accordance with IP
71111.21N.04, dated January 1, 2024 (ADAMS Accession No. ML23318A426). The inspection
will evaluate the implementation of the programs and activities to determine on a sampling basis
that age-related degradation of structures and components (SCs) is identified and addressed.
The schedule for the inspection is as follows:
Information gathering visit: Week of March 4, 2024
Onsite inspection: Weeks of April 8 and April 22, 2024
The purpose of the information gathering visit is to become familiar with the station
maintenance, surveillance, testing, inspection, and condition monitoring programs, become
familiar with plant layout, support identification of SCs that will be reviewed during the
inspection, and, as necessary, obtain plant specific site access training and badging for
unescorted site access. An initial list of documents that the team will review during the
information gathering visit are listed in the attached Enclosure.
During the information gathering visit, the team leader will also discuss the following
inspection support administrative details: office space size and location; specific documents
requested to be made available to the team in their office spaces; arrangements for reactor
site access and the availability of knowledgeable plant staff and licensing organization
personnel to serve as points of contact during the inspection.
D. Rhoades
2
For SCs that the inspection will review, an initial list of the documents the team will review during
the conduct of the inspection are also listed in the Enclosure. The team leader will contact you
with identified SCs. Also, personnel should be available at the site during the inspection who are
knowledgeable regarding maintenance, surveillance, testing, inspection, and condition
monitoring programs.
This letter does not contain new or amended information collection requirements subject to the
Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.). Existing information collection
requirements were approved by the Office of Management and Budget, under Control Number
3150-0011. The NRC may not conduct or sponsor, and a person is not required to respond to, a
request for information or an information collection requirement unless the requesting document
displays a currently valid Office of Management and Budget control number.
In accordance with 10 Code of Federal Regulations (10 CFR) 2.390 of the NRC rules and
practices, a copy of this letter and its enclosures will be available electronically for public
inspection in the NRC public document room or from the publicly available records component
of NRCs document system (ADAMS). ADAMS is accessible from the NRC website
(http://www.nrc.gov/reading-rm/adams.html).
This baseline inspection and the supporting inspection procedure and documentation template
are new to the Reactor Oversight Process this year. As such, please communicate with the team
lead readily if there are questions as to document scope or suggestions to better accomplish this
process.
Sincerely,
Branch Chief
Engineering Branch 1
Division of Operating Reactor Safety
Docket Nos. 05000317 and 05000318 License
Enclosure:
Documents Requested for Information
Gathering Visit
cc w/encl: Distribution via ListServ
Melvin K.
Gray
Digitally signed by Melvin
K. Gray
Date: 2024.01.29
08:24:59 -05'00'
X
SUNSI Review
x
Non-Sensitive
Sensitive
x
Publicly Available
Non-Publicly Available
OFFICE
RI/DORS
RI/DORS
NAME
KMangan
MGray
DATE
1/25/2024
1/26/2024
Enclosure: Documents Requested for Information Gathering Visit
The following information is requested by March 4, 2024, which is the first day of the information
gathering trip. Electronic format is the preferred media. If electronic media is made available via
an internet based remote document management system, then the remote document access
should allow inspectors to download, save, and print the documents in the NRC's regional office.
Electronic media on compact disc or paper records (hard copy) are acceptable. At the end of the
inspection, the documents in the team's possession will not be retained.
This document request is based on typical documents that a generic plant might have. As such,
this document request is not meant to imply that any specific plant is required to have all of the
listed documents. In addition, your plant specific document titles may vary from the document
titles listed below.
Contact Information:
Team Leader: Kevin Mangan
Email: kevin.mangan@nrc.gov
Telephone: (610) 337-5234
Documents Requested:
1) A list of 50.65 (a)(1) structures, systems and components from the past 5 years.
2) A list of maintenance rule functional failure evaluations from the past 5 years.
3) A list of most recent system health status for High Safety Significance (HSS) and degraded
Low Safety Significance (LSS) systems.
4) Maintenance rule scoping and performance criteria document.
5) The most recent evaluation of maintenance effectiveness required per 10 CFR 50.65(a)(3).
6) List of preventative maintenance deferrals and preventative maintenance change requests
in the last 5 years.
7) List of corrective action documents associated with component failures, or keyword
search of aging, age-related, wear, accelerated wear, corrosion, abnormal
wear, accelerated degradation, and abnormal degradation from the past 5 years. If
the site uses other terms to identify age-related degradation mechanisms, please
provide a list related to those terms. Please include a short description of the issue in
the system generated listing.
8) A list of Part 21 Reports applicable to the site from the past 5 years.
9) A list of top 100 most risk-significant SCs. If possible, designate the component as active
or passive in the risk ranking.
10) The site-specific probabilistic risk assessment (PRA) identifying risk-significant functions
and latest PRA Summary Document.
11) A list of RISC-1, RISC-2, and RISC-3 SSCs.
Enclosure: Documents Requested for Information Gathering Visit
12) List of risk-significant long-lived passive SCs.
13) Equipment reliability characterization and preventative maintenance program
procedures.
14) Scoping document and basis for 10 CFR 50.49, Environmental Qualification.
15) Aging management programs and basis documents.
16) List of systems (system numbers / designators and corresponding noun names).
17) A listing of commercial grade dedication packages for the last 5 years.