ML20211G402
| ML20211G402 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 08/25/1999 |
| From: | Jordan M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Kingsley O COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML20211G405 | List: |
| References | |
| 50-454-99-10, 50-455-99-10, NUDOCS 9908310252 | |
| Download: ML20211G402 (3) | |
See also: IR 05000454/1999010
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August 25,1999
Mr. Oliver D. Kingsley
President, Nuclear Generation Group
Commonwealth Edison Company
ATTN: Regulatory Services
Executive Towers West lil
1400 Opus Place, Suite 500
Downers Grove,IL 60515
SUBJECT:
BYRON INSPECTION REPORT 50-454/99010(DRP); 50-455/99010(DRP)
Dear Mr. Kingsley:
On August 2,1999, the NRC completed an inspection at the Byron 1 and 2 reactor facilities.
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The enclosed report presents the results of that inspection.
Dunng this inspection period, control room operations were conducted in a safe, professional,
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and controlled manner. We observed that operators generally adhered to the station's
standards for control room conduct, procedural adherence, annunciator response, and use of
three-way communications. We also noted that observed maintenance activities were
coniucted well. Maintenance personnel were knowledgeable of the tasks and professionally
completed tne work. In particular, maintenance associated with the replacement of a degraded
cell in the Unit 2 train B safety-related 125 volt battery was planned and executed well.
We identified that appropriate post maintenance testing requirements were not incorporated
into maintenance work instructions for the Unit 2 diesel driven auxiliary feedwater pump. The
testing performed fol!owing replacement of control power diodes in the pump's control circuit
was not adequate to demonstrate that the control circuit would have performed as designed.
We, also, noted that your corrective action process was not effective to preclude similar
inadequate testing of an essential service water make-up pump 4 weeks later.
We have also observed that station personnel have missed prior opportunities to identify
multiple rnaterial condition deficiencies in the plant and have failed to enter those material
condition deficiencies into the your corrective maintenance program for repairs. Although the
safety consequences of these deficiencies were minor, if left uncorrected, these problems could
potentially impact the ability of the systems to perform their required function.
9908310252 990825
ADOCK 05000454
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O. Kingsley
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Based on the results of this inspection, the NRC has determined that one violation of NRC
requirements occurred. This violation is being treated as a Non-Cited Violation (NCV),
consistent with Appendix C of the Enforcement Policy. The NCV is described in the subject
inspection report. If you contest the violation or severity level of the NCV, you should provide a
response within 30 days of the date of this inspection report, with the basis for your denial, to
the Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington DC '
20555-0001, with copies to the Regional Administrator, Region Ill, and the Director, Office of
Enforcement, United States Nuclear Re'gulatory Commission, Washington, DC 20555-0001.
In accordance with 10 CFR 2.790 of the NRC's Rules of Practice," a copy of this letter, its
enclosure, and your response, if you choose to provide one, will be placed in the NRC Public
Document Room.
We will gladly discuss any questions you have concerning this inspection.
Sincerely,
/s/ Michael J. Jordan
Michael J. Jordan, Chief
Reactor Projects Branch 3
Docket Nos. 50-454; 50-455
Enclosure:
Inspection Report 50-454/99010(DRP);
50-455/99010(DRP)
cc w/ encl:
D. Helwig, Senior Vice President, Nuclear Services
C. Crane, Senior Vice President, Nuclear Operations
H. Stanley, Vice President, Nuclear Operations
R. Krich, Vice President, Regulatory Services
DCD - Licensing
W. Levis, Site Vice President
R. Lopriore, Station Manager
B. Adams, Regulatory Assurance Manager
M. Aguilar, Assistant Attomey General
State Liaison Officer
State Liaison Officer, State of Wisconsin
Chairman, Illinois Commerce Commission
DOCUMENT NAME: G:\\BYRO\\BYR99010.DRP
To receive a copy of this document, Indicate in the box: "C" = Copy w/o attach /enci"E" = Copy w/ attach /enel"N" = No copy
OFFICE
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DATE
08/24/99
08/M/99
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OFFICIAL RECORD COPY
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O, Kingsley '
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Distribution:
COT (E-Mail)
RPC (E-Mail)
GFD (Project Mgr.) (E-Mail)
J. Caldwell, Rlll w/ encl
B. Clayton, Rlli w/enct
SRI Byron w/enci
DRP w/ encl
DRS w/ encl
Rill PRR w/enci
' PUBLIC IE-01 w/ encl
Docket File w/enci
GREENS
LEO (E-Mail)
DOCDESK (E-Mail)
,
310001
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