05000339/LER-1982-019, Forwards LER 82-019/03L-0

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Forwards LER 82-019/03L-0
ML20054E378
Person / Time
Site: North Anna Dominion icon.png
Issue date: 06/02/1982
From: Cartwright W
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20054E379 List:
References
N-82-058, N-82-58, NUDOCS 8206110152
Download: ML20054E378 (1)


LER-2082-019, Forwards LER 82-019/03L-0
Event date:
Report date:
3392082019R00 - NRC Website

text

.. . . - _ . -. - -. .. .- .- -- . .-

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i USNRO . REGION ;I j ^TL ANT /. GED%4 ,

VIRGINI A E; KCT CA DP q CO NY

  • NORT ANh POWER STATIDN P.o. sox 4or MINER AL, VIRGINI A 23 t 17 i

June 2, 1982 l .

< .Mr. James P. O'Reilly, Regional, Administrator . Serial No. N-82-058 Office of Inspection and Enforcement N0/DAH:dus U. S. Nuclear Regulatory Commission Docket No. 50-339 Region II ,

101 Marietta Street, Suite 3100 License No. NPF-7 l> Atlanta, Georgia 30303 1

1

Dear Mr. O'Reilly:

Pursuant to North Anna Power Station Technical Specifications, the Virginia Electric and Power Company hereby submits the following License Event Report
for North Anna Unit No. 2.

l Report No. Applicable Technical Specifications LER 82-019/03L-0 T.S. 6.9.1.9.b l This report has been reviewed by the Station Nuclear Safety and Operating i Committee and will be forwarded to Safety' Evaluation and Control for their

{ review.

Very Truly Yours, I -

'4 t' l W. R. Cartwright l Station Manager i

Enclo3ures (3 copies)

{ cc: Mr. Richard C. DeYoung, Director (30 copies) i Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D. C. 20555~

Mr. Norman M. Haller Director (3 copies)

Office of Management and Program Analysis et3LcoPTjk ud '

8206110132 920602

DR ADOCK 0500033 g pb.
  • 1 Virginia Electric and Power Company North Anna Power Station, Unit No. 2

Attachment:

Page 1 of I l Docket No. 50-339 I Report No. LER 82-019/03L-0 Description of Event On May 11, 1982 with Unit No. 2 in cold shutdown and the '

Emergency Diesel Generator (EDG) inoperable, it was discovere differential current protection relay was inoperable on the protection circuit was de-energized for a design modificn*

charging pump suction valves. --

Probable Consequences of Occurrence f The 2J EDG output breaker would have f'metio-not have the protection provided by the differer Offsite power was available for the duration c=

the health and safety of the general public t Cause of Event The differential current protecti' dPONENT breaker was inadvertently de-energir cUFACTURER design change de-energized the cont pump suction valves. The design _ 0/8/0/ (26) opening breaker no. 13 in the N protection for the EDG.

-ner was /

Immediate Corrective Actie un out of /

The differential breaker was re-energ

- the 2J Diesel /

/

Scheduled Correct- /

No furth tu s "iERY DISCOVERY DESCRIPTION (32)

Actions T. i t il) / Operator Observation /

iO LOCATION OF RELEASE (36)

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,s NRC USE ONLY

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