ML20209F693

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Forwards Insp Repts 50-373/99-04 & 50-374/99-04 on 990513-0622.No Violations Noted.Determined That Multiple Challenges to Main Control Room Operators Occurred During Insp Period Due to Human Performance Weaknesses
ML20209F693
Person / Time
Site: LaSalle  Constellation icon.png
Issue date: 07/13/1999
From: Leach M
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To: Kingsley O
COMMONWEALTH EDISON CO.
Shared Package
ML20209F698 List:
References
50-373-99-04, 50-373-99-4, 50-374-99-04, 50-374-99-4, NUDOCS 9907160106
Download: ML20209F693 (3)


See also: IR 05000373/1999004

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  • UNITED STATES

/p M49'og NUCLEAR REGULATORY COMMISSION

8 o REGION 111
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801 WARRENVILLE ROAD

LISLE. ILLINOIS 60532-4351

          • July 13,1999

l ' Mr. Oliver D. Kingsley

l President, Nuclear Generation Group

i Commonwealth Edison Company

' ATTN:- Regulatory Services

Executive Towers West lli

1400 Opus Place, Suite 500

l Downers Grove, IL 60515

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' SUBJECT: LASALLE INSPECTION REPORT 50-373/99004(DRP); 50-374/99004(DRP)

Dear Mr. Kingsley:

This refers to the inspection conducted May 13 through June 22,1999, at the LaSalle Nuclear

Power Stationi The purpose of the ins;ection was to determine whether activities authorized by

ao license were conducted safely and in accordance with NRC requirements. At the

conclusion of the inspection, the findings were discussed with those members of your staff

. identified in the enclosed report.

Overall, your staff demonstrated a good safety focus and plant operations were conducted

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appropriately. - Operators conducted activities in the main control room conservatively and

safely. Operators and station personnel performed well during the conduct of routine plant

operations. The conduct of most maintenance' activities and radiological control activities were

performed correctly.

However, multiple challenges to the main control room operators occurred ouring this '

inspection period. The items were generally a result of human performance weaknesses or

were repeat issues that indicated that initici corrective actions taken to address deficient

conditions were not always effective. For example, a trip of the Unit 2 conta!nment cooling

system, 2nd corresponding increase in cor . % ment pressure, occurred partly because

corrective actions taken to address a simk past problem on Unit 1 were narrow in scope in

addition, troubleshooting activities at the station did not always effectively resolve equipment

failures and, as a result, operators were challenged by potentially unavailable equipment.

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9907160106 990713 ,

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PDR ADOCK 05000373 i

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O. Kingsley -2-

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,

/s/ M. Leach

Melvyn Leach, Chief

Reactor Projects Branch 2

Docket Nos. 50-373; 50-374

License Nos. NPF-11; NPF-18

Enclosure: Inspectior. Report 50-373/99004(DRP);

50-374/99004(DRP)

cc w/ encl: D. Helwig, Senior Vice President .'

H. Stanley, PWR Vice President

C. Crane, BWR Vice President

R. Krich, Vice President, Regulatory Services

DCD - Licensing

J. Benjamin, Site Vice President

J. Meister, Station Manager

R. Brady, J ., Regulatory Assuranca Supervisor

M. Aguilar, Assistant Attorney General

State Liaison Officer

Chairman, Illinois Commerce Commission

DOCUMENT NAME: GdSA\LAS99004.DRP l

To receive a copy of th% document, 6ndrate in the box 't* = Copy w!o attachment / enclosure "Eaa Copy with attachment / enclosure "N" s No copy

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OFFICE Rlil L_ Rill IN l l

NAME Jackiw/co M l, T A Leach 6*4

DATE 07/4/99 07//3/99

OFFICIAL RECORD COPY ,

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RPC (E-Mail)

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J. Caldwell, Rlli w/enci

l B. Clayton, Rlli w/enci

! SRI LaSalle w/enci ^

DRP w/ encl

l DRS w/enci

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PUBLIC IE-01 w/ enc!

Docket File w/enci

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IEO (E-Mail)

DOCDESK (E-Mail)

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