ML17188A046
| ML17188A046 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 02/06/1998 |
| From: | Grant G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Kingsley O COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML17188A047 | List: |
| References | |
| 50-237-97-28, 50-249-97-28, NUDOCS 9802200066 | |
| Download: ML17188A046 (3) | |
See also: IR 05000237/1997028
Text
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UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION Ill
- Mr.* Oliver D. Kingsley
President, Nuclear Generation Group
Commonwealth Edison Company
ATTN: Regulatory Services
Executive Towers West Ill
- *
1400 Opus Place, Suite 500 * * *
Downers Grove, IL 60515
801 WARRENVILLE ROAD
LISLE, ILLINOIS 60532-4351
February 6, 1998
- .; ..... '
SUBJECT: *
NOTICE OF VIOLATION AND NRC INSPECTION REPORT
NO. 5~237/97028(DRP); 50-249/97028(DRP)
Dear Mr. Kjngsley:
This refers to the inspection conducted from November 23, 1997, to January 12, 1998, at the
Dresden facility. The purpose of the inspection was to determine whether activities authorized by
the license were conducted safely and in acc0rdarice with NRC requirements. During this period,
routine resident inspections were performed. The enclosed report presents the results of these .
inspections .
Overall, the plant operations were safe. However, plant material condition and some
maintenance activities continued to challenge the operators. On December 6, 1997, efforts to
restore the Unit 3 A train of the offgas system resulted in an offgas system fire. On
December 13, work performed by the staff caused an unplanned entry into a two-hour limiting
condition for operation. On .December 23, Unit 2 automatically scrammed due to a spurious
average power range monitor (APRM) signal during an unrelated surveillance of reactor pressure
vessel high pressure scram signals. Following the scram, the feedwater control system caused
the reactor vessel water level to increase high enough to flood the HPCI system, but the HPCI
system was still isolated. On three occasions during this inspection period, one or both HPCI
systems were inoperable due to material condition and design issues. Some of the* material
condition issues were repeat items that the station had not been able to resolve successfully.
Based on the results of this inspection, the NRC has determined that violations of ~RC
requirements occurred. The first violation involves a failure to implement part of the corrective
actions process. The inspection found that corrective actions for this violation had already been
implemented. The second violation was of concern because inappropriate actions performed
during maintenance resulted in an unplanned entry into a two-hour dual-unit limiting condition for
operation. The third violation was of concern because it appeared indicative of an increasing
trend of errors in controlling contamination area boundaries.
.
.
The violations are cited in the enclosed Notice of Violation (Notice), and the circumstances
surrounding the violations are described in detail in the subject inspection report.
9802200066 980206 -.
ADOCK 05000237
G
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0. Kingsley
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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, to
detennine whether further enforcement action is necessary to ensure compliance with regulatory
requirements.
In accordance with 1 O CFR 2. 790 of the NRC's "Rules of Practice," a copy of this letter, its
enclosures, and yourresponse will be placed in the*NRC Public Document Room.
Sincerely,
'
.,
- .!
'
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. /s/ G~ E~ Grant
Geoffrey E. Grant,* Chief
Division of Reactor Projects
Docket Nos.
50-237; 50-249
Enclosures:*
1.
2.
Inspection Report
No. 50-237/97028(DRP)~
50-249/97028(DRP)
.
cc w/encls:
M. Wallace, Chief of Staff
D. Helwig, Senior Vice President
G. Stanley, PWR Vice President .
J. Perry, BWR Vice President
D. Farrar, Regulatory
Services Manager
I. Johnson, Licensing Director
DCD - Licensing
M. Heffley, Site Vice President
T. Nauman, Station Manager Unit 1
P. Stafford, Station Manager Units 2 and 3
F. Spangenberg, Regulatory Assurance
.Manager
Richard Hubbard
Nathan Schloss, Economist
Office of the Attorney General
State Liaison Officer
Chainnan, Illinois Commerce
Commission
DOCUMENT NAME: G:\\DRES\\DRE97028.DRP
To receive e co
of this document, Indicate In the box "C" c Co
wtthout attach/encl "E" = Co
wtth attach/encl "N" c No copy
OFFICE
Riii
Riii
NAME
Grant
DATE
021(p1
OFFICIAL RECORD COPY
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0. Kingsley
Distribution:
Docket File w/encls
PUBLIC IE-01 w/encls *
A Beach w/encls
Deputy RA w/encls
Riii Enf. Coord. w/encls
SRI Dresden w/encls
Project Mgr., NRR w/encls
DRPw/encls
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TSS w/encls
DRS (2) w/encls
Riii PRR w/encls
RAC1 (E-Mail)
CAA 1 (E-Mail)
- ~ DOCDESK (E-Mail)
Project Mgr., Unit 1, NRR w/encls