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Mr. Fadi Diya, Senior Vice President   
Mr. Fadi Diya, Senior Vice President   
   and Chief Nuclear Officer Ameren Missouri  
   and Chief Nuclear Officer  
Ameren Missouri  
Callaway Plant  
Callaway Plant  
P.O. Box 620  
P.O. Box 620  
Fulton, MO 65251  
Fulton, MO 65251  
  SUBJECT: CALLAWAY PLANT - RESPONSE TO NOTICE OF VIOLATION (NRC INSPECTION REPORT 05000483/2017007)  
   
SUBJECT: CALLAWAY PLANT - RESPONSE TO NOTICE OF VIOLATION  
(NRC INSPECTION REPORT 05000483/2017007)  
   
   
Dear Mr. Diya:  
Dear Mr. Diya:  
  On August 28, 2017, the U.S. Nuclear Regulatory Commission (NRC) cited Union Electric  
   
On August 28, 2017, the U.S. Nuclear Regulatory Commission (NRC) cited Union Electric  
Company for failure to restore compliance for a Technical Specification 5.4.1.a. violation  
Company for failure to restore compliance for a Technical Specification 5.4.1.a. violation  
associated with the failure to perform preventative maintenance procedures to verify the  
associated with the failure to perform preventative maintenance procedures to verify the  
operation and timing of the engineered safety feature transformer XNBOl load tap changer at the Callaway Plant.  The Notice of Violation (Notice), enclosed within NRC Inspection Report 05000458/2017007 (ML17283A392), required you to respond in writing within 30 days.  
operation and timing of the engineered safety feature transformer XNBOl load tap changer  
at the Callaway Plant.  The Notice of Violation (Notice), enclosed within NRC Inspection  
Report 05000458/2017007 (ML17283A392), required you to respond in writing within 30 days.  
   
   
You responded to the Notice by letter, dated November 1, 2017 (ML17306A103).  In your  
You responded to the Notice by letter, dated November 1, 2017 (ML17306A103).  In your  
response, you stated that the timing of engineered safety feature transformer XNBOl load tap changer was successfully tested on October 20, 2017, thus resolving the technical issue associated with the violation for not previously verifying the operation and timing of the load tap changer.  You also responded that timing testing of engineered safety feature  
response, you stated that the timing of engineered safety feature transformer XNBOl load tap  
changer was successfully tested on October 20, 2017, thus resolving the technical issue  
associated with the violation for not previously verifying the operation and timing of the load  
tap changer.  You also responded that timing testing of engineered safety feature  
transformers XNBOl and XNB02 load tap changers will continue to be performed on a routine  
transformers XNBOl and XNB02 load tap changers will continue to be performed on a routine  
basis, going forward.  The letter also indicated that you are reviewing any NRC violations received since October 2015 for jobs that you are crediting for restoring compliance.  The basis  
basis, going forward.  The letter also indicated that you are reviewing any NRC violations  
for selecting October 2015 was that this was the last time a comprehensive pre-Problem Identification and Resolution (Pl&R) inspection self-assessment was performed.  In that assessment, the timeliness of corrective actions for NRC violations prior to October 2015 had  
received since October 2015 for jobs that you are crediting for restoring compliance.  The basis  
for selecting October 2015 was that this was the last time a comprehensive pre-Problem  
Identification and Resolution (Pl&R) inspection self-assessment was performed.  In that  
assessment, the timeliness of corrective actions for NRC violations prior to October 2015 had  
been evaluated.   
been evaluated.   
We have reviewed your response letter and find that it meets the requirements of
10 CFR 2.201.  The adequacy of your corrective actions to the Notice will be reviewed and, if
found acceptable, will be closed in the resident inspector integrated inspection report.


F. Diya
2
This letter 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,
/RA/
   
   
We have reviewed your response letter and find that it meets the requirements of 10 CFR 2.201.  The adequacy of your corrective actions to the Notice will be reviewed and, if found acceptable, will be closed in the resident inspector integrated inspection report.
   
   
 
Thomas R. Farnholtz, Chief  
F. Diya 2 This letter will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html
Engineering Branch 1  
and at the NRC Public Document Room in accordance with 10 CFR 2.390, "Public Inspections, Exemptions, Requests for Withholding.
"  Sincerely,
/RA/  Thomas R. Farnholtz, Chief Engineering Branch 1  
 
Division of Reactor Safety  
Division of Reactor Safety  
   
   
Docket No. 50-483 License No. NPF-30  
Docket No. 50-483  
License No. NPF-30  
   
   
Electronic Distribution for Callaway Plant
Electronic Distribution for Callaway Plant  
 


   ML17341B170  SUNSI Review  ADAMS:   Non-Publicly Available  Non-Sensitive Keyword:  By:  RAK  Yes    No  Publicly Available  Sensitive  NRC-002 OFFICE SRI/EB1 C/EB1 C/PBB C:EB1   NAME RKopriva TFarnholtz NTaylor TFarnholtz   SIGNATURE /RA/  TRF for /RA/ /RA/ /RA/   DATE 12/7/17 12/7/17 12/7/17
   ML17341B170  
  SUNSI Review   
ADAMS:  
Non-Publicly Available  
  Non-Sensitive  
Keyword:   
By:  RAK  
  Yes    No  
  Publicly Available  
  Sensitive   
NRC-002  
OFFICE  
SRI/EB1  
C/EB1  
C/PBB  
C:EB1  
NAME  
RKopriva  
TFarnholtz  
NTaylor  
TFarnholtz  
SIGNATURE  
/RA/  TRF for  
/RA/  
/RA/  
/RA/  
DATE  
12/7/17  
12/7/17  
12/7/17
12/7/17
12/7/17
}}
}}

Latest revision as of 12:24, 7 January 2025

Response to Notice of Violation (NRC Inspection Report 05000483/2017007)
ML17341B170
Person / Time
Site: Callaway Ameren icon.png
Issue date: 12/07/2017
From: Thomas Farnholtz
Division of Reactor Safety IV
To: Diya F
Ameren Missouri
References
IR 2017007
Download: ML17341B170 (3)
v • d • e


See also: IR 05000483/2017007

Text

December 7, 2017

Mr. Fadi Diya, Senior Vice President

and Chief Nuclear Officer

Ameren Missouri

Callaway Plant

P.O. Box 620

Fulton, MO 65251

SUBJECT: CALLAWAY PLANT - RESPONSE TO NOTICE OF VIOLATION

(NRC INSPECTION REPORT 05000483/2017007)

Dear Mr. Diya:

On August 28, 2017, the U.S. Nuclear Regulatory Commission (NRC) cited Union Electric

Company for failure to restore compliance for a Technical Specification 5.4.1.a. violation

associated with the failure to perform preventative maintenance procedures to verify the

operation and timing of the engineered safety feature transformer XNBOl load tap changer

at the Callaway Plant. The Notice of Violation (Notice), enclosed within NRC Inspection

Report 05000458/2017007 (ML17283A392), required you to respond in writing within 30 days.

You responded to the Notice by letter, dated November 1, 2017 (ML17306A103). In your

response, you stated that the timing of engineered safety feature transformer XNBOl load tap

changer was successfully tested on October 20, 2017, thus resolving the technical issue

associated with the violation for not previously verifying the operation and timing of the load

tap changer. You also responded that timing testing of engineered safety feature

transformers XNBOl and XNB02 load tap changers will continue to be performed on a routine

basis, going forward. The letter also indicated that you are reviewing any NRC violations

received since October 2015 for jobs that you are crediting for restoring compliance. The basis

for selecting October 2015 was that this was the last time a comprehensive pre-Problem

Identification and Resolution (Pl&R) inspection self-assessment was performed. In that

assessment, the timeliness of corrective actions for NRC violations prior to October 2015 had

been evaluated.

We have reviewed your response letter and find that it meets the requirements of

10 CFR 2.201. The adequacy of your corrective actions to the Notice will be reviewed and, if

found acceptable, will be closed in the resident inspector integrated inspection report.

F. Diya

2

This letter 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,

/RA/

Thomas R. Farnholtz, Chief

Engineering Branch 1

Division of Reactor Safety

Docket No. 50-483

License No. NPF-30

Electronic Distribution for Callaway Plant

ML17341B170

SUNSI Review

ADAMS:

Non-Publicly Available

Non-Sensitive

Keyword:

By: RAK

Yes No

Publicly Available

Sensitive

NRC-002

OFFICE

SRI/EB1

C/EB1

C/PBB

C:EB1

NAME

RKopriva

TFarnholtz

NTaylor

TFarnholtz

SIGNATURE

/RA/ TRF for

/RA/

/RA/

/RA/

DATE

12/7/17

12/7/17

12/7/17

12/7/17

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