ML20149G622
| ML20149G622 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png |
| Issue date: | 07/17/1997 |
| From: | Grant G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Mueller J COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML20149G625 | List: |
| References | |
| 50-295-97-12, NUDOCS 9707230377 | |
| Download: ML20149G622 (4) | |
See also: IR 05000295/1997012
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UNITED STATES
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July 17, 1997
Mr. J. H. Mueller
Site Vice President
Zion Station
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Commonwealth Edison Company
101 Shiloh Boulevard
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Zion, IL 60099
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SUBJECT:
NRC SPECIAL INSPECTION REPORT 50-295/97012 AND
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Dear Mr. Mueller:
On April 25,1997, the NRC completed a specialinspection of the Unit 1 loss of offsite
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power event that occurred on March 11,1997. The enclosed report presents the results
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of that inspection.
Your staff's response resulted in satisfactory recovery from the event with no actual
consequencer 10 the public health and safety. Licensee actions reflected a conscious
effort to emphasize a conservative operating philosophy focused on safety. However,
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some deficiencies unnecessarily slowed the event response, including inconsistent
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communication and coordination between departments, inefficient work planning, plant
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_ equipment and operating procedure problems, and insufficient control of operability
assessments.
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We are concerned about two violations of NRC requirements that were identified during
this inspection. The first violation involves the failure to have a procedure for responding
to a loss of offsite power event. An integrated loss of offsite power procedure could have
significantly improved event response, and resulted in a more timely restoration of plant
equipment. The second violation pertains to the f ailure to implement timely and effective
corrective actions to prevent the recurrence of malfunctions of sequence timers that
control the loading of engineered safety feature buses.
These violations are dted in the enclosed Notice of Violation, and the circumstances
surrounding the violations are described in detailin the enclosed report. Please note that
you are required to respond to this letter and should follow the instructions specified in the
enclosed Notice when preparing your response The NRC Will use your response, in part,
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to determine whether further enforcement action is necessary to ensure compliance with
regulatory requirements.
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9707230377 970717
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J. H. Mueller
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In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter,
its enclosure, and your response will be placed in the NRC Public Document Room.
We will gladly discuss any questions you have concernin : this inspection.
Sincerely,
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Geo rey E. Grant
irector
Division of Reactor Projects
Docket Nos. 50-295
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License Nos. DPR-39
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Enclosures:
2) Inspection Report
No. 50-295/97-12
cc w/ encl:
T. J. Maiman, Senior Vice President
Nuclear Operations Division
D. A. Sager, Vice President,
Generation Support
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H. W. Keiser, Chief Nuclear
Operating Officer
R. Starkey, Plant General Manager
R. Godley, Regulatory Assurance
Supervisor
1. Johnsen, Acting Nuclear
Regulatory Services Manager
Richard Hubbard
Nathan Schloss, Economist
Office of the Attorney General
Mayor, City of Zion
State Liaison Officer, Wisconsin
State Liaison Officer
Chairman, Illinois Commerce
Commission
Document Control Desk-Licensing
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J. H. Mueller
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Distribution:
Docket File w/enci
Project Manager, NRR w/enci
PUBLIC IE-01 w/ encl
DRP w/enci
OC/LFDCB w/enci
Rlli PRR w/enct
SRI Byron, Braidwood,
CAA1 w/enci (E-mail)
Zion w/enci
Deputy RA, w/ encl
A B. Beach, w/ encl
RAC1 (E-Mail)
Rlli Enf, Coordinator, w/ encl
DRS (2) w/enci
TSS w/ encl
DOCDESK (E-mail)
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J. H. Mueller
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In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter,
its enclosure, and your resporise will be placed in the NRC Public Document Room.
We will gladly discuss any questions you have concerning this inspection.
Sincerely,
/s/ G. E. Grant
Geoffrey E. Grant, Director
Division of Reactor Projects
Docket Nos. 50-295
License Nos. DPR-39
Enclosures:
2) Inspection Report
No. 50-295/97-12
cc w/enci:
T. J. Maiman, Senior Vice President
Nuclear Operations Division
D. A. Sager, Vice President,
Generation Support
H. W. Keiser, Chief Nuclear
Operating Officer
R. Starkey, Plant General Manager
R. Godley, Regulatory Assurance
Supervisor
1. Johnson, Acting Nuclear
Regulatory Services Manager
Richard Hubbard
Nathan Schloss, Economist
Office of the Attorney General
Mayor, City of Zion
State Liaison Officer, Wisconsin
State Liaison Officer
Chairman, Illinois Commerce
Commission
Document Control Desk-Licensing
DOCUMENT NAME: R :\\l N S PR PTS \\PO W E R S\\ZI O N\\ZI O 97012. D R P
To receive a copy of this docurnent, indicate in the box "C" = Copy without attach /enci
"E" = Copy with attach /enci "N" = No copy
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DATE
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OFFICIAL RECORD COPY