IR 05000454/2019012
| ML19269E551 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 09/26/2019 |
| From: | Karla Stoedter NRC/RGN-III |
| To: | Bryan Hanson Exelon Generation Co |
| References | |
| IR 2019012 | |
| Download: ML19269E551 (7) | |
Text
September 26, 2019
SUBJECT:
BYRON STATION, UNITS 1 AND 2DESIGN BASIS ASSURANCE INSPECTION (PROGRAMS) INSPECTION REPORT 05000454/2019012 AND 05000455/2019012
Dear Mr. Hanson:
On September 12, 2019, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Byron Station, Units 1 and 2, and discussed the results of this inspection with Mr. Harris Welt and other members of your staff. The results of this inspection are documented in the enclosed report.
The NRC inspectors did not identify any findings or violations of more-than-minor significance.
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, Part 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely,
/RA/
Karla K. Stoedter, Chief Engineering Branch 2 Division of Reactor Safety
Docket Nos. 05000454 and 05000455 License Nos. NPF-37 and NPF-66
Enclosure:
As stated
Inspection Report
Docket Numbers:
05000454 and 05000455
License Numbers:
Report Numbers:
05000454/2019012 and 05000455/2019012
Enterprise Identifier: I-2019-012-0029
Licensee:
Exelon Generation Company, LLC
Facility:
Byron Station
Location:
Byron, IL
Inspection Dates:
August 26, 2019, to September 12, 2019
Inspectors:
J. Gilliam, Reactor Inspector
J. Jacobson, Senior Reactor Operations Engineer
B. Jose, Senior Reactor Inspector
Approved By:
Karla K. Stoedter, Chief
Engineering Branch 2
Division of Reactor Safety
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a design basis assurance inspection (programs) inspection at Byron 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 - Design Bases Assurance Inspection (Programs)
The inspectors evaluated Environmental Qualification Program implementation through the sampling of the following components:
Select Sample Components to Review - Risk Significant/Low Design (Inside/Outside Containment) (IP Section 02.01)===
(1)1FSV-CC053, Unit 1 Penetration Cooling Flow Control Valve (2)0VA01CB-M, 0B Auxiliary Building Supply Fan Motor (3)1CS01PA, 1A Containment Spray Pump (4)1FSV-FW035A-A, 1A Steam Generator Feed Water Tempering Line Downstream Isolation Valve (5)1RD15E, Penetration for Control Power for Rod Drive Mechanism (6)2FSV-SD054F-A, 2B Steam Generator Lower Blowdown Line Flow Control Valve
Select Sample Components to Review - Primary Containment (Inside Containment)
(IP Section 02.01) (1 Sample)
(1)2FT-0651, 2A Bearing Component Cooling Water Flow Differential Pressure Transmitter
INSPECTION RESULTS
No findings or violations were identified.
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
- On September 12, 2019, the inspectors presented the Design Basis Assurance inspection (programs) inspection results to Mr. Harris Welt and other members of the licensee staff.
DOCUMENTS REVIEWED
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
71111.21N Calculations
BRW-01-0153-
E/BYR01-068
Environmental Parameters of EQ Zones
Corrective Action
Documents
1CC053 Did Not Fail Closed When Isolated
03/26/2008
Dry Boric Acid 1SI01PA Seals
04/25/2019
2FW009C Has Steady Leak From Valve-Suspected Packing
Leak
08/18/2019
Boric Acid on Flange for 1CS021A
07/14/2014
1SD054G Solenoid Buzzing
03/12/2017
NRC Question on EQ Binder Evaluation of Limit Switches
(BRW)
03/30/2018
EQ Related License Renewal Actions
01/16/2019
2019 EQ FASA: EQ Binder EQ-BB-093 Revision Error
05/07/2019
Corrective Action
Documents
Resulting from
Inspection
2019 NRC DBAI: Asco Coil Heat Rise Data; EQ Binder EQ-
BB-026
09/12/2019
Insulation Not Installed on 1FW092B
08/29/2019
Bonnet Insulation Not Installed on 1FW009B
08/29/2019
Drawings
238403
ASCO Drawing for Maximum Temperatures of Coil and
Critical Elastomers With Valve Energized and No Flow
03/01/1990
Engineering
Changes
355827
Revise EQ-BB-026 to Incorporate EC Evals EC 356210 &
355825 Evaluate New Qualified Lives for the ASCO
01/17/2006
356210
Request to Change Replacement Frequency of ASCO
Engineering
Evaluations
355825
Extend the Qualified Life for the Solenoid Valves on the
1FW035C, 2FW043A, 2FW043B, and 2FW043E AOVs
06/03/2005
CHRON#203764
Summary Evaluation : Impact of Elevated Temperature on
EQ Equipment in the Main Steam Tunnel
09/07/1993
EQ-BB-023
EQ Binder for Containment Spray Motors
EQ-BB-026
Equipment Qualification Binder - ASCO Solenoid Valves NP
Series
16A
EQ-BB-058
Electrical Penetration & Fiber Optic Feed-through
Assemblies; Bunker Ramo, IST Conax Nuclear, Mirion Tech
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
EQ-BB-059
EQ Binder for Conax Penetrations
EQ-BB-084
EQ Binder for Limitorque Motor Operator (RH Insulation)
EQ-BB-145
EQ Binder for Rosemount Differential Pressure Transmitters
1154HP5RA-N0037
Miscellaneous
Preventive Maintenance Deferral Checklist for 2FW043C:
Steam Generator FW Isolation Bypass Isolation Valves
07/02/2005
200124
Quality Receipt Inspection Package for Solenoid Valve
2/23/2013
200727
Quality Receipt Inspection Package for Connector, Reducer
01/15/2014
PMID 00118641
Replacement Schedule for Valve FSV 054F
N/A
Procedures
ER-A-302-1006
Motor Operated Valve Maintenance and Testing Guidelines
Motor Operated Valve Performance Trending
Self-Assessments
2019 Byron Environmental Qualification (EQ) Program
06/04/2019
Work Orders
00655047
Perform 15 year PM and Overhaul Using Contracted Vendor
10/25/2004
00981098
Lost Indication on 2SX016A
2/04/2016
01374934
Perform Dynamic Baker Test on 1CS01PA Motor
04/22/2012
01480116
Replace Entire Solenoid to Meet EQ Requirements
2/04/2013
01527729
Perform Motor Inspection on 1CS01PA
2/17/2013
0734820
Replace Transmitter Every 9 Years to Satisfy EQ
2/14/2006
1668381
Replace Transmitter 2FT-061
05/08/2015
4806493
2FI-0651 Low Flow Indication
07/27/2018