ML20154A282
| ML20154A282 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 09/24/1998 |
| From: | Grant G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Kingsley O COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML20154A284 | List: |
| References | |
| 50-373-98-19, 50-374-98-19, NUDOCS 9810020257 | |
| Download: ML20154A282 (3) | |
See also: IR 05000373/1998019
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UNITED STATES
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NUCLEAR REGULATORY COMMISSION
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801 WARRENVILLE ROAD
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LISLE. ILLINOIS 60532-4351
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September 24, 1998
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Mr. Oiiver D. Kingsley
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President, Nuclear Generation Group
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Commonwealth Edison Company
ATTN: Regulatory Services
Executive Towers West ill
1400 Opus Place, Suite 500
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Downers Grove,IL 60515
SUBJECT:
LASALLE INSPECTION REPORT 50-373/98019(DRP); 50-374/98019(DRP)
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Dear Mr. Kingsley:
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This refers to the inspection conducted July 17 through August 31,1998, at the
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. LaSalle Nuclear Power Station. The purpose of the inspection was to determine whether
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activities authorized by the license were conducted safely and in accordance with NRC
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requirements. In addition to routine resident inspection during this period, regional inspection
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staff also assisted in conducting extensive observations of startup activities fotbwing the Unit 1
extended outage. At the conclusion of the inspection, the findings were discussed with those
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members of your staff identified in the enclosed report.
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. Overall, performance of plant personnel was acceptable during the Unit i startup. In
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particular, operators performed well while effectively controlling plant activities, conducting
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briefings, communicating with other personnel and each other, maintaining a questioning
attitude, and responding to equipment problems. Some violations of NRC requirements and
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other instances of human p erformance deficiencies were identified which indicates a need to
continue your current focus in this area at LaSalle. For example, a failure of operators to
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follow procedure resulted in inadvertent start of an emergency diesel generator, and an
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engineer prov!ded an incorrect core flow value resulting in establishment of non-conservative
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flow-biased power range scram and rod block setpoints. A Notice of Violation is not being
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issued for these violations because they were either of minor safety significance or your staff
identified these issues and took appropriate corrective actions.
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During the Unit 1 startup, several equipment pratalems challunged plant personnel. In each
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instance, your staff took appropriate, conservative actions, inc!uding shutting down the plant
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on two occasions, to resolve the problems. One of these shutdowns involved operators
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manually scramming the plant in response to a feedwater transient caused by a flow controller
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card failure. The other shutdown was a pre-planned evolution to address intermediate range
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monitor failures, failures during testing of the reactor core isolation cooling pump mechanical
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overspeed trip function, and flow control valve control circuitry noise problems in the reactor
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recirculation system. None of these equipment problems directly impacted safe operation of
- the facility. We also continue to recognize the extensive actions taken during the extended
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outage to address the more significant equipment problems at LaSalle. However, these
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equipment failures during startup do re emphasize the need to maintain a focus on resolving
Unit i equipment problems.
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9810020257 990924
ADOCK 05000373
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O. Kingsley
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In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter and its
enclosure will be placed in the NRC Public Document Room.
Sincerely,
Original signed by
Geoffrey E. Grant, Director
Division of Reactor Projects
Docket Nos.: 50-373;50-374
Enclosure:
Inspection Report 50-373/98019(DRP);
50-374/98019(DRP)
cc w/ encl:
M. Wallace, Senior Vice President
D. Helwig, Senior Vice President
G. Stanley, PWR Vice President
J. Perry, BWR Vice President
D. Farrar, Regulatory Services Manager
1. Johnson, Licensing Director
DCD - Licensing
F. Dacimo, Site Vice President
T. O'Connor, Station Manager
P. Bames, Regulatory Assurance Supervisor
R. Hubbard
N. Schloss, Economist
Office of the Attomey General
State Liaison Officer
Chairman, Illinois Commerce Commission
DOCUMENT NAME: G:\\LASA\\LAS98019.DRP
To reimive e copy of this document. Indicate in the box "C" = Cnow without attachm int / enclosure "E" = Copy with attachment / enclosure "N" = No copy
OFFICE
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DATE
09At/98
09/12/98
09p.5/98
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OFFICIAL RECORD COPY
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O. Kingsley
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Distribution:
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SAR (E-Mail)
Project Mgr., NRR w/enci
~J. Caldwell, Rlll w/enci
C. Pederson, Rill w/ encl
B. Clayton, Rlli w/enct
SRI LaSalle w/end
DRP w/end
TSS w/enci
DRS (2) w/end
Rlli PRR w/end
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PUBLIC IE-01 w/end
Docket File w/enci
~ GREENS
LEO (E-Mail)
DOCDESK (E-Mail)
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