05000483/LER-2020-005, Forward LER 2020-005-00 for Callaway Plant, Unit 1, Inoperable Isolation Valve Between Safety-Related Essential Service Water and Nonsafety-Related Service Water

Forward LER 2020-005-00 for Callaway Plant, Unit 1, Inoperable Isolation Valve Between Safety-Related Essential Service Water and Nonsafety-Related Service Water

ML20322A165
Person / Time
Site:	Callaway
Issue date:	11/17/2020
From:	Bianco F Ameren Missouri, Union Electric Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
Shared Package
ML20322A164	List: 05000483/LER-2020-005, Forward LER 2020-005-00 for Callaway Plant, Unit 1, Inoperable Isolation Valve Between Safety-Related Essential Service Water and Nonsafety-Related Service Water
References
ULNRC-06619 LER 2020-005-00
Download: ML20322A165 (3)

LER-2020-005, Forward LER 2020-005-00 for Callaway Plant, Unit 1, Inoperable Isolation Valve Between Safety-Related Essential Service Water and Nonsafety-Related Service Water

Event date:
Report date:
4832020005R00 - NRC Website

text

~ 't-WAmeren MISSOURI Callaway Plant November 17, 2020 ULNRC-06619 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 10 CFR 50.73(a)(2)(i)(B)

Ladies and Gentlemen:

DOCKET NUMBER 50-483 CALLAWAY PLANT UNIT 1 UNION ELECTRIC CO.

RENEWED FACILITY OPERATING LICENSE NPF-30 LICENSEE EVENT REPORT 2020-005-00 INOPERABLE ISOLATION VALVE BETWEEN SAFETY-RELATED ESSENTIAL SERVICE WATER AND NONSAFETY-RELATED SERVICE WATER The enclosed licensee event report is submitted in accordance with 10 CFR 50.73(a)(2)(i)(B) to report a condition that was prohibited by Technical Specifications.

This letter does not contain new commitments.

Sincerely, Senior Director, Nuclear Operations Enclosure

................ -~ ...........................................................-~ ............. .

........................................................................................... 831 5 County Road 459 Steedman, MO 65077 AmerenMissouri.com

ULNRC-06619 November 17, 2020 Page 2 of3 cc: Mr. Scott A. Morris Regional Administrator U.S. Nuclear Regulatory Commission Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511 Senior Resident Inspector Callaway Resident Office U.S. Nuclear Regulatory Commission 8201 NRC Road Steedman, MO 65077 Mr. M. Chawla Project Manager, Callaway Plant Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Stop 08B1A Washington, DC 20555-0001

• ,; * * * * * * * - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +. ***** . . . . . . . . . . . . . . . t ****** . . . . . . . . . . . . . . . . ' ************** ; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ' . . . . . . . . . , **** * * ** . . . . . . . . . . . . . . . - . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

• • . * * * ** * * * ... * * .. * ** * * .. * * .. * ** * * ** * * * * * * ... * * * * ... * .. * * * * * * .. * * * * * ** * * * * * * * * * * * * * * * ** * .. * * ... * * ** ** * * ... * * * * ** * * .. * * * .. ** * * * * * * -~. *+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ~ . . . . . . . . . . . . . . . . . .

ULNRC-06619 November 17, 2020 Page 3 of3 Index and send hardcopy to QA File A160.0761 Hard copy:

Certrec Corporation 6100 Western Place, Suite 1050 Fort Worth, TX 76107 (Certrec receives ALL attachments as long as they are non-safeguards and may be publicly disclosed.)

Electronic distribution for the following can be made via Responses and Reports ULNRC Distribution:

F. M. Diya B. L. Cox F. J. Bianco S. P. Banker R. C. Wink K.A. Mills T. B. Elwood J. Imhoff Corporate Oversight NSRB Secretary Performance Improvement Coordinator Resident Inspectors (NRC)

STARS Regulatory Affairs Mr. Jay Silberg (Pillsbury Winthrop Shaw Pittman LLP)

Missouri Public Service Commission

• • • . 0. 0 0. 0 ... 0. 0 0 0

• 0 0 0 0 0 0 .. 0 0. <. 0 00 0 0 ... 0 0 0 0 0 0 0 0 0 0 0 0 < 0 0 0 0 0.

• 0 0 Pr O O O

• 0 00 0 0,0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 ** 0 0 0 , 0 0 0 0 0

• * * * * * * * * * * * * * * * * ,, . . . . . . . . . . . * * * - - * - . . . . . . . . . . **.* ,. * .., . . . . . . . . t . . . . . . . . . . . . . . . . . . . . . . * * * * * * * * * * * * * * * * * * * * * * * * *

• 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~. 0 0 0 LOO O O O*O O O O O O O O O . 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 O O O O O 00 0 0 000 0 0 0 00 0 0 0 0 0

'**t ........................... -~ ........... ' .............................. , ........... ,. ........ ~** ................... ' ............. *-*~ *******

0 O O O O O r 0 0 O O O O O O .. 0 O O O O O O 00 O O O O 1 0 0 0 O O ~ O 00 0 0 0 0 0 0 O . O O O ,_ 0

:: ::;:: :: ::: :::::: ::::*::::::: ::: :: :::::::: :::::::: ::: :::::: ::::: ::::: ::: ::::::::: :: ::*:: ;:::: ::::::: :: :::;:: ::: ::::::::.;::::::::: ::~:::::: ;: :::::::: ::::::: ::: :: :: :; :::::::: ::: ::;: ::*~;:: ::: :: :.: ::: ::: :::: ::: : :::: :*:::: :: :: :~:

~- ~-

. . . . . . . . . . . . . . . . . . . . . * * * * . ~- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ' * * * * *

• f . . . . . . . . . . . . .