ML20206G969

From kanterella
Jump to navigation Jump to search
Forwards Insp Rept 50-461/99-11 on 990408-21 & NOV Re Failure to Correctly Translate Design Basis for Hydrogen Mixing Compressors Into EDG Load Calculation
ML20206G969
Person / Time
Site: Clinton Constellation icon.png
Issue date: 04/30/1999
From: Dapas M
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To: Mcelwain J
ILLINOIS POWER CO.
Shared Package
ML20206G973 List:
References
50-461-99-11, EA-99-108, NUDOCS 9905110001
Download: ML20206G969 (3)


See also: IR 05000461/1999011

Text

.- .

. UNITED STATES

l [OR85 - o NUCLEAR REGULATORY COMMISSION

_[

'

~.n REGION lil

.j

.

  • B01 WARRENVILLE ROAD

U r LISLE. ILLINOIS 60532-4351

  • . , * ,f April 30, 1999

EA 99-108

Mr. John P. McElwain

Chief Nuclear Officer

. Clinton Power Station

lilinois Power Company

Mail Code V-275

P. O. Box 678

Clinton,IL 61727 '

SUBJECT:. CLINTON INSPECTION REPORT 50-461/99011(DRP) AND

NOTICE OF VIOLATION

Dear Mr. McElwain:

On April 21,1999, the NRC completed an inspection at the Clinton Power Station. The

enclosed report presents the results of that inspection.

During the period covered by this inspection, the inspectors reviewed the activities associated

with NRC Manual Chapter 0350 Case Specific Checklist Restart items ll.1, " Establish and

' Implement Continuing Operator Training Emphasizing Technical Specification

Adherence / Knowledge and Recognition of Degraded Conditions," IV.4, " Resolve Degraded -

Voltage and Electrical Distribution Concems," and VI.3, " Validate the Adequacy of the Setpoint

Program." The inspectors determined that these items were adequately addressed and the

.

NRC Oversight Panel subsequently closed these items.

Based on the results of this inspection, the NRC has determined that a violation of NRC

requirements occurred. This violation is cited in the enclosed Notice of Violation (Notice) and

the circumstances surrounding it are described in detail in the subject inspection report. A

violation of 10 CFR 50, Appendix B, Criterion Ill, was cited in Inspection Report 50-461/97015, in

part, for the failure to correctly translate the design basis for the hydrogen mixing compressors

into an emergency diesel generator load calculation. The violation in this report is cited

consistent with Appendix C of NUREG-1600, Rev.1, " General Statement of Policy and

Procedures for NRC Enforcement Actions." Specifically, your staff failed to correct the

referenced violation despite having considered the issue closed in your corrective action

system. The erroneous design value being maintained in the design basis calculation

constituted a continuing violation'of Criterion Ill.

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.

'990511000'1 990430

PDR ADOCK 05000461

G PM ,

T

F. .

l

lJ. McElwain ' -2-

o

Based on the results of this inspection, the NRC also determined that one additional 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 l

response within 30 days of the date of this inspection report, with the basis for your denial, to

the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington,

D.C. 20555-0001, with copies to the Regional Administrator, Region lil, and the Director, Office

of Enforcement, U.S. Nuclear Regulatory Commission, Washington, D.C. 20555-0001.

~ In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter, the

enclosures, and your response will be placed in the NRC Public Document Room.

Sincerely,

/s/ M. L. Dapas

!

l

Marc L. Dapas, Deputy Director l

Division of Reactor Projects l

!

Docket No. 50-461 i

License No. NPF-62

Enclosures: 1. Notice of Violation

2. Inspection Report 50-461/99011(DRP) i

4

,

cc w/encls: G. Hunger, Station Manager

R. Phares, Manager, Nuclear Safety

and Performance Improvement j

J. Sipek, Director - Licensing

M. Aguilar, Assistant Attorney General

' G. Stramback, Regulatory Licensing -

Services Project Manager ,

General Electric Company  !

Chairman, DeWitt County Board

State Liaison Officer .

.

Chairman, Illinois Commerce Commission '

i

i

DOCUMENT NAME: G:\ CLIN \CLl99011.DRP

Tofeceive a copy of this document. Indicaid in the box:"C" = Copy without enclosure "E"= Copy with enclosure"N"= No copy

l OFFICE Rill -lA/ Rlli 6 Rill J l i

'

NAME Kozak/m>=5fffj - Clayton #A Dapas #4f7)

C

DATE 04/J9/99 04/78/99- 04E099 -

OFF/CIAL RECORD COPYOFFICIAL RECORD COPY

' Yet & / **- '  :

4,atp we

.

J. McElwain -3-

l

l

- Distribution:

RPC (E-Mail) J

J. Lieberman, OE w/encls i

D. Dambly, OGC w/encls ]

B. Boger, NRR w/encls I

M. Banerjee, NRR w/encis

Project Mgr., NRR w/encls - ]

J. Caldwell, Rill w/encls l

B. Clayton, Rill w/encls

SRI Clinton w/encls l

J

DRP w/encls l

DRS w/encls i

Rlli PRR w/ enc!s

PUBLIC IE-01 w/encls

Docket File w/encls (

)

'

GREENS I

IEO (E-Mail) f

DOCDESK (E-Mail)

{

l

I

I

l

-

l

t

i

1

(

l

I

I \

l

i

1000D

l

i