ML20202F187

Forwards Insp Rept 50-457/97-21 on 971112-21 & 980115 & Notice of Violations Re Failure to Follow Procedure Change Process to Correct Inadequacy in Unit 2 Plant Startup Procedure

ML20202F187
Person / Time
Site:	Braidwood
Issue date:	02/11/1998
From:	Grobe J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Kingsley O COMMONWEALTH EDISON CO.
Shared Package
ML20202F193	List: IR 05000457/1997021 ML20202F187 ML20202F232
References
50-457-97-21, NUDOCS 9802190147
Download: ML20202F187 (3)

See also: IR 05000457/1997021

Text

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Feliuary 11, 1998

Mr. Oliver D. Kingsley

President, Nuclear Generation Group ,

"

Commonwealth Edison Company

ATTN: Regulatory Services

Executive Towers West 111

1400 Opus Place, Suite 500

Downers Grove,IL 60515

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SUBJECT: NRC INSPECTION OF BRAIDWOOD UNIT 2 FEEDWATER SYSTEM

HYDRAULIC TRANSIENT (WATERHAMMER) EVENT INSPECTION REPORT

50-457/97021(DRS) AND NOTICE OF VIOLATION

Dear Mr.- Kingsley: ,

On January 15,1998, the NRC completed an inspection at the Braldwood Nuclear Power

Station. The purpose of the inspection was to review the events, assessments, and corrective  ;

actions associated with the hydraulic transient (waterhammer) which occurred in the Unit 2

feedwater system on November 10,1997. The enclosed report presents the results of this

inspection.

Overall, operations and engineering staff responded well and initiated appropriate actions for

systems and components affected by the feedwater system waterhammer event, in particular,

we noted that the staff's investigation and assessment was effective at determining the

sequence of events and cause of this event. The cause of the event was attributed to the

failure to establish an adequate feedwater system fill and vent procedure, which was ,

considered a violation of 10 CFR 50, Appendix B, Criterion V, While the corrective actions were

considered adequate to reestablish the integrity of the affected systems, we are concemed with

lapses in the staff's adherence to existing procedures as discussed below.

Two additional violanons of 10 CFR 50, Appendix B, Criterion V, were identified for failure to

follow the procedure change process to correct an inadequacy in the Unit 2 plant startup

procedure, and for failure to follow the problem ident!fication process for potentially damaged

main feedwater system snubbers.

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The violations are cited in the enclosed Notice of Violation (Notice) and the associated

circumstances are described in detailin the enclosed report. Please note that 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 determine whether

further enforcement action is 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 and its

enclosures will be placed in the NRC Public Document Room.

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O. D. Kingsley 2 February 11, 1998

We will gladly discuss any questions you have conceming this inspection.

Sincerely,

/s/ liarold O. Christensen for

John A. Grobe, Director

Division of Reactor Safety l

Docket No. 50-457

License No. NPF 77

Enclusures 1. Notice of Violation

2. Inspection Report 50-457/97021(DRS)

cc w/encls: M.Wallace Chief of Staff

D. Helwig, Senior Vice President

G. Stanley, PWR Vice Presiderit

J. Perry, BWR Vice President

D. Farrar, Regulatory

Services Manager

1. Johnson, Licensing Director

DCD - Licensing

T. Tulon, Site Vice President

Braidwood Station Manager

T. Simpkin, Regulatory

Assurance Supervisor

Richard Hubbard

Nathan Schloss, Economist

Office of the Attorney General

State Llaison Officer

Chairman, Illinois Commerce

Commission

- Distribution

Docket File w/encls Rlli PRR w/encls Rlil Enf. Coordinator w/encls

PUBLIC IE-01 w/encls SRI, Braldwood w/encls TSS w/encls

LPM, NRR w/encls J. L. Caldwell, Rlll w/encls R. A. Capra, NRR e-mail

DRP w/encls - A. B. Beach, Rlll w/encls DOCDESK e mail

DRS w/encls CAA1 e mail

= _ _

DOCUMENT NAME: G:DRS\ BRA 97021.DRS (See Previous Concurrence)

To receive a to my of this document. Indicate in the box *C's Copy w/o attach /enci *E's Copy w/ attach /end *Naa No copy

OFFICE Ritt:DRS - Rill:DRS Rill:DRP Rill:DRS tl

NAME Holmberg/sd Gavuta Jordan Grobe V7' g

DATE 1/ - /98 - 1/ - /98 1/ /98 4/tl /98

OFFICIAL RECORD COPY

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O. D. Kingsley 2

We will gladly discuss any questions you have concerning this inspection.

Sincerely,

John A. Grobe, Director

Division of Reactor Safety

i

Docket No. 50-457

License No. NPF-77

Enclostires 1. Notice of Violation

2. Inspection Report 50-457/97021(DRS)

i cc w/encis: M V/allace, Nuclear Services

Senior Vice President

G. Stanley, PWR Vice President

J. Perry, BWR Vice President

D. Farrar, Regulatory

Services Manager

1. Johnson, Licensing Director

DCD - Licensing ,

T. Tulon, Site Vica President

Braidwood Stattn Manager

T. Simpkiri, 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 Rnl PRR w/encls Rlli Enf. Coordinator w/encls

PUBLIC IE-01 wiencls SRI, Braidwood w/encls TSS w/ enc ls

LPM, MRR w/encls J. L. Caldwel;, Rill w/encis R. A. Capra, NRR w/enets

DRP w/ enc!:, A. B. Beacn, Rl!! w/encls DOCDESK w/encls

DRS w/encls CAA1 w/ enc!s

DOCUMENT NAME: G.DRS\ BRA 97021.DRS

To re:,eNJ a co my of thh document. Indicat. In the box *C* = Copy w/o attach /end "E" = Copy w/ attach /enci'ri" = No copy

l' OFF!CE Rill:DRS l5 Rlli:DRS lil Ril!:DRP ul& Rlli:DRS l -

[ *:AME Holmberg/sd % TvulaW Jordan c%$ Groba

Q.TE 1/M 98 I at/98 ('i ~ 1/#/98 // 1/ /98

OFFICIAL RECORD COPY

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