ML20202C934
| ML20202C934 | |
| Person / Time | |
|---|---|
| Site: | Braidwood  |
| Issue date: | 11/26/1997 |
| From: | Grant G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Tulon T COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML20202C938 | List: |
| References | |
| 50-456-97-15, 50-457-97-15, NUDOCS 9712040104 | |
| Download: ML20202C934 (4) | |
See also: IR 05000456/1997015
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November E6, 1997
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EA 97-247
Mr. T. Tulon
Sits Vio., President
Braidwood Station
Commonwealth Edison Company
RR #1, Box 84
Braceville,IL 60407
SUB2CT:
NRC INSPECTION REPORT NO. 50-456/97015(DRP); 50-457/97015(DRP)
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Dear Mr. Tulon:
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On September 22,1997, the NRC completed a .nspection at your Braidwood Unit 1 and Unit 2
reactor facilities. The enclosed report presents the results of that inspection.
During the 6-week period covered t , this inspection, your conduct of activities at the Braidwood
facilities was generally characterized by safe'y-conscious operations, sound engineering and
maintenance practices, and careful radiological work controls. Operators promptly recognized
and correctly responded to a failure of the 28 feedwater pump speed controller card, minimizing
the esulting plant transient. Additionally, the maintenance activities on the 1B main steam
isolation valve were well planned and executed and the different functional groups demonstrated
excellent team work in the performance of the repairs.
However, we are concemed about the failure to follow procedures and component
mispositionings. The 2B containment spray eductor drain valve (2CS0128) was found closed as
required, but unlocked on August 20. The valve had been verified locked by two operators on
August 12 and by two different operators on August 14. Your root cause evaluation found that
operators were not properly using the administrative controls for maintaining status of locked
valves and that operators were not following administrative procedures to verify the position of
locked valves. Mispositioned components are a continuing concem that has been discussed in
previous inspection reports improper verification of valve position is also a recurring problem.
Your corrective actions for this problem have not been fully effective as evidenced by the fact
that Braidwood Station has averaged about four mispositioned components per month for each
of the last 5 months. The violation is cited in the enclosed Notice of Violation (Notice) and the
circumstances surrounding the violation are described in detail in the enclosed report.
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The NRC inspectors identified that the post modification tests on tha engineered safety feature
switchgear and miscellaneous electric equipment room ventilation systems, in July 1996, were
performed without an approved test pncedure. The testing on the engineered safety feature
switchgear ventilation system failed to identify that the modification had been installed
improperly. We are concemed that your root cause investigation failed to identify that the test
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9712040104 971126
ADOCK 05000456
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was performed without a procedure. We do understand that corrective actions have been taken
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to ciarify test documentation requirements and training of engineering personnel on the need for
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procedure adherence and test documentation. The violation is citou as item 2 in the enclosed
Notice, and the circumstances surrounding the violation are describect in detail in the enclosed
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report. We note that this violation had been corrected and those actions were reviewed dunng
this inspection. Therefore, no response to this matter is requested.
Regardmg item 1 in the enclosed Notice relating to improper value positioning verification, please
note that you are required to respond to this letter and should follow the instructbns spedfled in
the enclosed Notice when preparing your response. Your response should not only detail the
actions to be taken for the specdic issues identdied, but should also be broad!y focused on what
actions yw plan or have taken to ensure that your conective actions process is effective. The
NRC will use your response, in part, to da.ormine whether further er.!orcemord action is
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- necessary to ensure compliance with regulatory requirements.
In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter, the
enclosures, and your response to this letter will be placed in the NRC Public Document Room.
Sincerely,
/s/ Geoffrey E. Grant
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Geoffrey E. Grant, Drector
Division of Reactor Projects
Docket Nos: 50-456, 5M57
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Enclosures:
1.
2.
Inspection Report
No. 50-456/97G15(DRP);
No. 5M57/97015(DRP)
See Attached Dstribution
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DOCUMENT NAME: G:BRAl\\ BRA 97015.DRP
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OFFICIAL RECORD COPY
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cc w/encis:
O. Kingsley, Nuclear Generation Group
President and Chief Nuclear Ofrar
M. Wallace, Senior Vice
President, Corporate Services
H. G. Stanley, Vice President
PWR Operations
Liaison Officer, NOC-BOD
D. A. Sager, Vice President,
Generation Support
D. Farrar, Nuclear Regulatory
Services Manager
1. Johnson, Licensing
Operations Manager
Document Control Desk-Licensing
Braidwood Station FAanager
T. Simpkin, Regulatory
Assurance Supervisor
Richard Hubbard
Nathan Schloss, Economist
Office of the Attor,)ey G6neral
State Liaison Officer
Chairman, Illinois Commerce
Commission
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T. Tulon
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cc w/encis:
O. Kingsley, Nuclear Generation Group
President and Chief Nuclear Officer
M. Wallace, Senior Vice
President, Corporate Services
H. G. Stanley, Vice President
PWR Operations
Ualson Officer, NOC-BOD
D. A. Sager, Vice President,
Generation Support
D. Farrar, Nuclear Regulatory
Services Manager
I. Johnson, Licensing
Operations Manager
Document Control Desk-Licensing
Braidwood Station Manager
T. Simpkin, Regulatory
Assurance Supervisor
Richard Hubbard
Nathan Schloss, Economist
Office of the Attomey General
State Liaison Officer
Chairman, Illinois Commerce
Commission
Distribution:
Docket File w/encls
DRP w/encls
OC/LFDCB wlencls
TSS w/encls
PUBLIC IE-01 w/encls
DRS (2) w/encls
A. Beach w/encls
Rlll PRR w/encls
Deputy RA w/encls
RAC1 (E-Mail)
Rlli Enf. Coord. w/encls
CAA1 (E-Mail)
SRI Braidwood w/encls
DOCDESK (E-Mail)
Project Mgr., NRR w/encls
J. Lieberman, OE w/encls
J. Goldberg, OGC w/encls
R. Zimmerman, NRR w/encls
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