IR 05000352/2024012
| ML24290A161 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 10/17/2024 |
| From: | Glenn Dentel Division of Operating Reactors |
| To: | Rhoades D Constellation Energy Generation, Constellation Nuclear |
| References | |
| IR 2024012 | |
| Download: ML24290A161 (1) | |
Text
October 17, 2024
SUBJECT:
LIMERICK GENERATING STATION, UNITS 1 AND 2 - COMMERCIAL GRADE DEDICATION INSPECTION REPORT 05000352/2024012 AND 05000353/2024012
Dear David Rhoades:
On October 3, 2024, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Limerick Generating Station, Units 1 and 2, and discussed the results of this inspection with Michael Gillin, Site Vice President, and other members of your staff. The results of this inspection are documented in the enclosed report.
No findings or violations of more than minor significance were identified during this inspection.
This letter, its enclosure, and your response (if any) 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 Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely, Glenn T. Dentel, Chief Engineering Branch 2 Division of Operating Reactor Safety
Docket Nos. 05000352 and 05000353 License Nos. NPF-39 and NPF-85
Enclosure:
As stated
Inspection Report
Docket Numbers:
05000352 and 05000353
License Numbers:
Report Numbers:
05000352/2024012 and 05000353/2024012
Enterprise Identifier: I-2024-012-0010
Licensee:
Constellation Energy Generation, LLC
Facility:
Limerick Generating Station, Units 1 and 2
Location:
Limerick, PA
Inspection Dates:
September 16, 2024 to October 03, 2024
Inspectors:
P. Cataldo, Senior Reactor Inspector
L. Cline, Senior Reactor Inspector
E. Miller, Senior Reactor Inspector
Approved By:
Glenn T. Dentel, Chief
Engineering Branch 2
Division of Operating Reactor Safety
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a Commercial Grade Dedication Inspection at Limerick Generating Station, in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors.
Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information.
List of Findings and Violations
No findings or violations of more than minor significance were identified.
Additional Tracking Items
None.
INSPECTION SCOPES
Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with their attached revision histories are located on the public website at http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/index.html. Samples were declared complete when the IP requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter (IMC) 2515, Light-Water Reactor Inspection Program - Operations Phase. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensee performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.
REACTOR SAFETY
===71111.21N.03 - Commercial Grade Dedication
The inspectors reviewed the implementation of the licensees processes for dedicating commercial grade (CG) items/services as basic components and/or for procuring safety-related structures, systems, and components for the following samples:
Commercial Grade Dedication===
- (1) Capacitor for DC Battery System (Purchase Order (PO)# 01367634, Catalogue identification (CID)# 11102344, CG)
- (2) Single Pole, Double Throw Switch for Core Spray Valves (PO# 00822501, CID#
11424537, CG)
- (3) Limit Switch for Emergency Service Water Valves (PO# 00796639, CID# 11426715, CG)
- (4) Control Switch for Residual Heat Removal Service Water System (PO# 00684338, CID# 0011448571, CG)
- (5) Buna-N O-Ring for Reactor Pressure Vessel (PO# 00722694, CID# 11467225, CG)
- (6) Check Valve for the Control Rod Drive System (PO# 01356756, CID# 11497209, CG)
- (7) Barrel Cylinders for Emergency Service Water Valves (PO# 01462313, CID#
11419467, CG)
- (8) Pressure Gauges for the High Pressure Coolant Injection System (PO# 01395093, CID# 11424540, CG)
- (9) D-3 Field Under/Over Excitation Relay for Emergency Diesel Generators (PO#
00692370, CID# 11102427, CG)
- (10) Pressure Adjustment Springs for the Main Steam System (PO# 01333455, CID#
11800121, CG)
- (11) Unibal Rod End Bearing for the Emergency Diesel Generator Governors (PO#
00821049, CID# 11483209, CG)
- (12) Silicon Rectifier for the Emergency Diesel Generator Starting Air Circuits (PO#
00696639, CID# 11477599, CG)
- (13) Teflon Packing for the Hydraulic Control Units (PO# 55558080, CID# 11462153, CG)
- (14) Coaxial Cable for Local Power Range Monitors (PO# 00705179, CID# 0011478718, Safety Related Procurement)
(15)3-Amp Fuses for the Hydraulic Control Units (PO# 00712812, CID# 11497806, Safety Related Procurement)
INSPECTION RESULTS
No findings were identified.
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
- On October 3, 2024, the inspectors presented the Commercial Grade Dedication Inspection results to Michael Gillin, Site Vice President, and other members of the licensee staff.
DOCUMENTS REVIEWED
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
71111.21N.03 Calculations
6600E.13
Calculation for Surge Protection, D/G Solenoid Valves
(Mod 6078)
Revision 0
Corrective Action
Documents
Resulting from
Inspection
Constellation Power Labs Non-Conformance Report
2570
IR 04676797, IR 4802845, IR 4804148, IR 4804431, IR
04805974, IR 4806038, IR 4806296, IR 4806299, IR 4806331, IR 4806339, IR 4806346, IR 04806552, IR
04806587
Engineering
Evaluations
A1776816-01
Evaluation 111-02427: Protective Relay Failed PQI Test
SCN 111-02427
2/21/2013
Miscellaneous
A106/A106 - 10
Standard Specification for Seamless Carbon Steel Pipe
for High-temperature Service
2010
A513/A513M -
20a
Standard Specification for Electric-Resistance-Welded
Carbon and Alloy Steel Mechanical Tubing
20
B135/B135M-17
Standard Specification for Seamless Brass Tube
2017
ASTM E18-22
Standard Test Methods for Rockwell Hardness of Metallic
Materials
22
CGIHS01
EPRI CGI Joint Utility Task Group Commercial Grade
Item Evaluation for Hand Switches
Revision 0
LIM-42765
Commercial Grade Dedication Verification Testing for
barrel, cylinder for INVAR air operator model CID
0011419467 (partial)
6/17/2024
LIM-69025
Commercial Grade Dedication Verification Testing for
barrel, cylinder for INVAR air operator model CID
0011419467 (partial)
10/3/2024
Procedures
AD-ES-103
Performance of Nuclear Quality Work for CGS Shops
003
M-020-029
Fairbanks Morse Opposed Piston Diesel Engine Minor
Examination and General Maintenance
Revision 0
PES-S-004
Sampling Plan
003
Procurement Engineering Support Activities
014
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Procurement Engineering Support Activities
25
Nuclear Material Procurement
2
Division 2 RPV Instrumentation B Reference Leg Backfill
System Check Valves (42-2046B, 42-2044B) Test
Revision 8
Work Orders
253934-21, 05167588. 05265680, 04854329-61,
249706-01, 04949820