ML26084A591
| ML26084A591 | |
| Person / Time | |
|---|---|
| Site: | Cook  (DPR-058, DPR-074) |
| Issue date: | 03/27/2026 |
| From: | Jorge Corujo-Sandin NRC/RGN-III/DORS/EB1 |
| To: | Ferneau K Indiana Michigan Power Co |
| Shared Package | |
| IR 2026010 | List: |
| References | |
| IR 2026010 | |
| Download: ML26084A591 (0) | |
See also: IR 05000315/2026010
Text
Kelly Ferneau
Executive VP and Chief Nuclear Officer
Indiana Michigan Power Company
Nuclear Generation Group
One Cook Place
Bridgman, MI 49106
SUBJECT:
DONALD C. COOK NUCLEAR PLANT - REQUEST FOR INFORMATION FOR
THE NRC QUADRENNIAL COMPREHENSIVE ENGINEERING TEAM
INSPECTION: INSPECTION REPORT 05000315/2026010 AND
Dear Kelly Ferneau:
On July 6, 2026, the U.S. Nuclear Regulatory Commission (NRC) will begin a quadrennial
baseline Comprehensive Engineering Team Inspection (CETI) at Donald C. Cook Nuclear Plant.
This inspection will be performed in accordance with NRC Inspection Procedure 71111.21M and
NRC memorandum, dated December 9, 2025, Reactor Oversight Process Inspection Scheduling
Guidance While the Recommendation for the Revised Baseline Inspection Program is being
Evaluated by the Commission (ADAMS Accession No. ML25337A380).
The CETI focuses on the design, maintenance, and operation of risk-significant components
with low margin, associated with an accident scenario, or a specific system. The inspection
monitors the implementation of changes to structures, systems, and components as
modifications to one system may affect the design bases and functioning of interfacing systems
as well as introduce the potential for common cause failures. The components, modifications,
50.59 Evaluations, 50.59 Screenings, and operating experiences to be reviewed during this
baseline inspection will be identified as part of the preparation for the inspection and finalized
during the first onsite inspection week. Additionally, the inspection team may request scenarios
to be performed on the simulator. This request would require support from your simulator staff to
validate scenarios, simulator time, and a crew to perform the actions which would most likely
occur during the second onsite week. The team will work closely with your staff early on during
the inspection process to ensure this activity can be accomplished with minimal impact.
The inspection will include two onsite weeks. The inspection team will consist of four NRC
inspectors, including three regional inspectors and one resident inspector, who will focus on
engineering, maintenance, and operations of the selected samples. The current inspection
schedule is as follows:
Preparation week:
June 29-July 3, 2026
Onsite weeks:
July 6-10 and July 20-24, 2026
March 27, 2026
K. Ferneau
2
In order to prepare for this inspection, we have enclosed a request for information (RFI) with the
following sections:
I.
Administrative Inspection Information
II.
Inspection Information Request
This section has been divided into the following four groups with respective due
dates:
1. Due April 27, 2026: The first group lists information necessary for our initial
risk-informed scoping activities and preliminary sample selections. The
lead inspector will communicate the preliminary samples selected by
May 29, 2026. This will include Components, Modifications, 50.59
Evaluations, and 50.59 Screenings.
2.
Due June 24, 2026: The second group of documents requested are those
items needed to support our in-office preparation activities including
inspection logistics. During the in-office preparation activities, the team may
identify additional information needed to support the inspection.
3.
Due July 6, 2026: The third group includes the additional information
identified during the in-office preparation as well as plant-specific reference
material. This information should be available to the team onsite.
4.
After July 6, 2026: The fourth group includes supporting information to be
provided throughout the inspection. Specifically, corrective action documents
and questions developed during the inspection are requested to be provided
as the documents are generated.
It is important that all documents are up to date and complete to minimize the number of
additional documents requested during the preparation and/or onsite portions of the inspection.
If any requested information was previously provided for a recent inspection, please grant access
to the corresponding folders to streamline data collection.
The lead inspector for this inspection is Jorge Corujo-Sandin. If there are any questions about the
inspection or the material requested in the enclosure, please contact the lead inspector via
email at Jorge.Corujo-Sandin@nrc.gov.
This letter contains voluntary information collections that are subject to the Paperwork
Reduction Act of 1995 (44 U.S.C. 3501 et seq.). The Office of Management and Budget (OMB)
approved these information collections (approval number 3150-0011). The burden to the public
for these information collections is estimated to average 70 hours8.101852e-4 days <br />0.0194 hours <br />1.157407e-4 weeks <br />2.6635e-5 months <br /> per response. Send
comments regarding this information collection to the FOIA, Library and Information Collection
Branch, Office of the Chief Information Officer, Mail Stop: T6-A10M, U.S. Nuclear Regulatory
Commission, Washington, DC 20555-0001, or by email to Infocollects.Resource@nrc.gov, and
to the Desk Officer, Office of Information and Regulatory Affairs, NEOB-10202, (3150-0011)
OMB, Washington, DC 20503.
K. Ferneau
3
This letter and its enclosure will be made available for public inspection and copying at
http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in
accordance with 10 CFR 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely,
Jorge Corujo-Sandin, Senior Reactor Inspector
Engineering Branch 1
Division of Operating Reactor Safety
Docket Nos. 05000315 and 05000316
License Nos. DPR-58 and DPR-74
Enclosure:
Comprehensive Engineering Team
Inspection Request For Information
cc: Distribution via GovDelivery
Signed by Corujo-Sandin, Jorge
on 03/27/26
K. Ferneau
4
Letter to Kelly Ferneau from Jorge Corujo-Sandin dated March 27, 2026.
SUBJECT:
DONALD C. COOK NUCLEAR PLANT - REQUEST FOR INFORMATION FOR
THE NRC QUADRENNIAL COMPREHENSIVE ENGINEERING TEAM
INSPECTION: INSPECTION REPORT 05000315/2026010 AND
DISTRIBUTION:
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RidsNrrPMDCCook Resource
RidsNrrDroIrib Resource
R3-DORS
ADAMS Accession No: ML26084A591
PKG: ML26082A264
e-Concurrence Case: 20260325-70011
COMPREHENSIVE ENGINEERING TEAM INSPECTION DOCUMENT REQUEST
Enclosure
COMPREHENSIVE ENGINEERING TEAM INSPECTION REQUEST FOR
INFORMATION
I.
ADMINISTRATIVE INSPECTION INFORMATION
Inspection Report Number:
05000315/2026010 AND 05000316/2026010
Onsite Inspection Dates:
July 6-10 and July 20-24, 2026
Inspection Procedure:
IP 71111.21M, Comprehensive Engineering Team Inspection
Lead Inspector:
Jorge Corujo-Sandin, Senior Reactor Inspector
DORS/RIII
Jorge.Corujo-Sandin@nrc.gov
Teammates:
The lead inspector will reach out once the four inspectors have
been assigned and provide their appropriate contact
information.
II. INSPECTION INFORMATION REQUEST
Please contact the lead inspector with any questions regarding this information request.
Provide all information electronically in searchable formats, preferably through an electronic
sharing service (e.g., CERTREC, ShareFile, Box). Specific Excel formats may be requested
for certain enclosure items to support sample selection. If the site does not have access to a
sharing service, the NRC can provide access to its SharePoint External Sharing (SPxS)
system. Please provide descriptive titles for each file and sufficient detail for any lists
provided. For each request below, the respective NRC IP 71111.21M section is provided in
paratheses (e.g., IP 71111.21M Section 01.01 is listed as: (01.01)).
1.
Information Requested to Support Risk-Informed Selections
The following information is requested by April 27, 2026, or sooner, to facilitate
the initial risk-informed sample selections as outlined in IP 71111.21M
Section 02.02.
Risk Information
1.1.
Copies of PSA system notebooks, Human Error Reliability Analysis
Notebook, Internal Flood scenario notebook and internal event PSA
summary document (02.02.a).
1.2.
Provide risk ranking of the top 250 components from your site-specific
probabilistic safety analysis (PSA) sorted by Birnbaum Worth. Include
values for Risk Achievement Worth, Risk-Reduction Worth, and
Fussell-Vesely. Provide the ranking in an Excel spreadsheet that contains
the importance measures and the description of the basic event (e.g., not
just the basic event designator) (02.02.b).
COMPREHENSIVE ENGINEERING TEAM INSPECTION DOCUMENT REQUEST
2
1.3.
Provide a list of the top 250 cut-sets from your PSA. Provide descriptions
of the basic events in the list of cut-sets (Provide in Excel format)
(02.02.b, 02.02.c).
System, Structure, and Component Information
1.4.
List of systems including system name, abbreviations and/or numbers
(supports 02.02).
1.5.
Electronic copies of simplified plant drawings (if available). Note: these may
be uncontrolled documents such as big notes, training diagrams, etc.
(supports 02.02).
1.6.
List of high-risk Maintenance Rule systems/components based on
engineering or expert panel judgment (i.e., those systems/components not
identified high risk in the PSA) (02.02.d, 02.02.e).
1.7.
Structures, systems, and components (SSCs) in the Maintenance Rule
(a)(1) category for the last 4 years (02.02.d, 02.02.e).
1.8.
Information of any common cause failure of components experienced in the
last 4 years (02.02.d, 02.02.e).
1.9.
List of Causal Evaluations (e.g., Apparent Cause Evaluations, Root Cause
Evaluations, etc.) associated with component failures or design issues
initiated/completed in the last 4 years (02.02.d, 02.02.e).
1.10. List of open operability evaluations (02.02.d, 02.02.e).
Plant Documents and Procedures
1.11. Revision number for the current copy of: Updated Final Safety Analysis
Report (UFSAR), Technical Specifications, Technical Specifications Bases,
and Technical Requirements Manual (supports 02.02).
1.12. Copy of the UFSAR change log or a synopsis of the changes. This should
include all changes made to the UFSAR that were incorporated in the last
10 CFR 50.71(e)(4) submittal (supports 02.02, 03.03.g).
1.13. Procedures addressing time-critical and/or risk-significant operator actions.
If not in the procedure, include a list of all time-critical and/or risk-significant
operator actions. Identify actions that do not have job performance
measures (02.02.b, 02.02.c).
1.14. In-service testing (IST) program document including the IST Program Basis
document, or equivalent (if any) (supports 02.02).
COMPREHENSIVE ENGINEERING TEAM INSPECTION DOCUMENT REQUEST
3
Recent Design Modification Information
1.15. List of permanent plant modifications to SSCs that have been approved in
the last 4 years. Do not include canceled or still in process modifications.
For this inspection, permanent plant modifications include (02.02.f):
1.15.1 Plant changes, design changes, and set point changes.
1.15.2 Equivalency evaluations, and suitability analyses.
1.15.3 Procedure changes for EOPs, AOPs, surveillances, and test
procedures.
1.15.4 Calculation changes.
1.16. A list of all corrective action documents (open and closed) in the last
4 years that address permanent plant modification issues including
implementation, concerns, or processes (02.02.f, 02.02.h).
1.17. List of all 10 CFR 50.59 completed evaluations from the last 4 years. In the
list, specify which evaluations concluded NRC approval was required. This
list should include 50.59 evaluations for the following:
1.17.1 Changes that have been made under the provisions of
10 CFR 50.59 that have been updated in accordance with
10 CFR 50.71(e)(4).
1.17.2 Modifications that are field work complete.
1.17.3 Changes to calculations (or initiation of new calculations) that have
been issued.
The list should contain the number and title of each document, a brief description
of the change, and the corresponding number and type of the affected document
(i.e., the modification or procedure to which the evaluation applies) (02.02.g).
1.18. A list of all 10 CFR 50.59 changes that were screened out as not requiring
a full evaluation (i.e., just a 50.59 Screening) in the last 4 years including
for: (a) calculations; (b) procedure revisions; (c) changes to the facility
(modifications); (d) non-routine operating configurations; or (e) departures
in methods of analyses.
The list should contain the number and title of each document, a brief description
of the change, and the corresponding number and type of the affected document
(i.e., the modification or procedure to which the evaluation applies) (02.02.g).
1.19. A list of any modifications, procedure revisions, or UFSAR changes where it
was determined that 10 CFR 50.59 did not apply for the last 4 years
(02.02.g and 03.03.e).
COMPREHENSIVE ENGINEERING TEAM INSPECTION DOCUMENT REQUEST
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1.20. A list of corrective action documents (open and closed) that address
10 CFR 50.59 issues, concerns, or processes. These documents should
also include the associated corrective action documents and the 50.59
change implementation for the last 4 years. The list should contain the
number, title, and revision (or date) of each document, the affected system
and corresponding documentation (if applicable) (02.02.g, 02.02.h).
Operating Experience Information
1.21. Provide a list of operating experience reviews completed in the last 2 years
including a description of the operating experience issue (02.02.d, 03.04.a).
2.
Information Requested for the Preliminary Selected Samples to be
Available by June 24, 2026.
For each request listed below, the associated IP 71111.21M Section is provided
in parentheses to ensure sample completion.
Program Documents and Audits (supports 03.01 - 03.04.a)
2.1.
Procedures addressing the following: modifications, design changes,
set point changes, equivalency evaluations or suitability analyses,
post-modification testing, 10 CFR 50.59 evaluations and screenings,
operating experience, and UFSAR updates (03.01 - 03.04.a).
2.2.
Corrective Action Program procedures, including operability/functionality
determination (03.01 - 03.04.a).
2.3.
Emergency procedures and abnormal operating procedures associated
with the selected samples (03.01 - 03.04.a).
2.4.
Quality Assurance Program document/procedure (03.01 - 03.04.a).
2.5.
A copy of any internal/external self-assessments and associated
corrective action documents generated in preparation for the inspection
(03.01 - 03.04.a).
2.6.
A copy of engineering, maintenance, and operations related audits
completed in the last 2 years (03.01 - 03.04.a).
For each of the selected Components:
Please separate this information for each sample (e.g., folder with component or
modification name that includes calculations, condition reports, maintenance,
etc.).
2.7.
System Health Reports, System Descriptions, Design Basis Documents,
and/or Training Lesson Plans associated with each of the selected
components (03.01).
COMPREHENSIVE ENGINEERING TEAM INSPECTION DOCUMENT REQUEST
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2.8.
Electronic copies of electrical drawings (AC and DC), piping and
instrumentation drawings (P&IDs), and any other key diagrams (03.01).
2.9.
If available electronically, provide the vendor manual. If it is not electronic,
please have the vendor manual available onsite (03.01).
2.10. Standard operating procedures associated with the component and
system (03.01).
2.11. Provide copies of the normal and alarm response procedures associated
with each component and selected scenarios (if any) (03.01).
2.12. Aging Management Program documents applicable to the component
(03.01).
2.13. List of condition reports (corrective action documents) associated with each
of the selected components for the last 4 years (Excel format preferred)
(03.01).
2.14. List of the maintenance history (corrective, preventive, and elective),
including the required frequency of each maintenance activity, for over the
last 10 years. If not described in the activitys title, provide a brief
description to indicate the purpose of the maintenance activity (03.01).
2.15. List of all tests and surveillances completed for each component, including
the required frequency. Please be prepared to provide onsite the recent
completions for each test and surveillance including full work order
documentation, acceptance reviews and any corrective actions generated
(03.01).
2.16. Trend data available for each components performance for last 4 years.
(For example: pump performance including in-service testing, vibration
monitoring, oil sample results, etc.; valve stroke time and leak rate results,
diagnostic trend data, etc.) (03.01).
2.17. Provide an all-inclusive list of calculations and revisions for each
component. Include document number, title, and revision numbers (03.01).
2.18. Copies of calculations associated with each of the selected components,
excluding data files. If the number of applicable responses under
this request, for a specific component, is excessive (e.g., more than
10 calculations), you may reach out to the lead inspector for an alternative
[Pipe stress calculations excluded from this request] (03.01).
2.19. Copies of operability evaluations (open/closed for last 4 years) for
each component and plans for restoring operability, if applicable (03.01).
2.20. Copies of operator work-around evaluations associated with each
component and plans for resolution, if applicable (03.01).
COMPREHENSIVE ENGINEERING TEAM INSPECTION DOCUMENT REQUEST
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2.21. Copies of any open temporary modifications associated with each
component, if applicable (03.01).
For the selected Modifications, 50.59 Evaluations and 50.59 Screenings:
2.22. For each selected modification, provide the engineering change package
(03.02.a). Include any 50.59 Screening and/or 50.59 Evaluation (03.02.b).
2.23. Provide a copy of each selected 50.59 Evaluation (03.03.a - 03.03.g).
2.24. Provide a copy of each selected 50.59 Screening (03.03.a - 03.03.g).
2.25. The selected Modifications, 50.59 Evaluations, and 50.59 Screenings will
be further filtered by the inspectors until the final samples are selected.
Once these are selected (during the preparation week and first onsite
week) the site should be prepared to provide other supporting documents
such as (03.03.a - 03.03.g):
Design drawings supporting the change
Procedures, calculations, etc. affected by the change
Post-modification test packages
UFSAR changes generated (e.g., marked off pages)
For the selected Operating Experience Review:
2.26. For the operating experience review selected, provide the evaluation and
any associated change documentation resulting from the review (03.04).
Inspection Logistics Information
2.27. Entrance meeting and exit meeting time and location. As the NRC ROP
revisions occur, resource expenditure on entrance and exit meetings are
being reduced. Entrance meetings are up to the sites discretion. Exit
meetings may be remote. Contact the lead inspector for further guidance.
2.28. Onsite room number/name and location reserved for the inspection team.
Please specify if the room is located inside/outside the Protected Area. If
available, provide a smaller breakout room nearby for interviews, etc.
2.29. Current management and engineering organizational chart.
2.30. Response team contact information and roles (e.g., management sponsor,
lead, inspector counterpart).
2.31. Any potential resource conflicts during the inspection (e.g., emergency
drills, all-staff meetings, etc.).
2.32. Available times, during the Monday and/or Tuesday of the second onsite
week, to use the simulator to run scenarios. An operations crew to support
this effort will be required. If the simulator is unavailable during this week,
please let the lead inspector know as soon as possible.
COMPREHENSIVE ENGINEERING TEAM INSPECTION DOCUMENT REQUEST
7
2.33. Any badging processes and on-site parking instructions to support the
teams arrival and access to the site.
3.
Additional Information to be provided on July 6, 2026, when
the Team is Onsite
3.1.
During preparation, the team will be making final selections and may
identify additional information needed to support the inspection.
3.2.
Schedule of any testing/maintenance activities to be conducted on the
selected components during the two onsite inspection weeks.
4.
Information Requested to be Provided Throughout the Inspection
4.1.
Any corrective action documents generated as a result of the teams
questions before and during this inspection as the documents are
generated.
4.2.
List of questions and/or document requests submitted by the team and their
status (e.g., open, closed) sorted by inspector, provided daily.
4.3.
If available in hard copy form, one complete set of P&IDs and simplified
drawings (e.g., training schematics).
4.4.
Please ensure that other supporting documents for the selected items are
readily retrievable as the inspection team will likely be requesting these
documents during the inspection.
If you have questions regarding the information requested, please contact the lead inspector.