ML20248L006

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PNO-78-034:on 780215,construction Supervisor Observed That Interior Bracing on Unit 2 Heat Tracing Controller Cabinets for Boron Sys Was Different from Those Installed on Unit 1. Commonwealth of Virginia Notified
ML20248L006
Person / Time
Site: North Anna Dominion icon.png
Issue date: 02/17/1978
From: Klingler G, Sniezek J
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
References
PNO-78-034, PNO-78-34, NUDOCS 9806100372
Download: ML20248L006 (1)


Text

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PRELIMINARY NOTIFICATION v

_ -t February 17. 1978 PRELIMINARY NOTIFICATION OF EVENT 0R UNUSUAL OCCURRENCE -- PNO-78-34

_This preliminary notification constitutes EARLY notice of an event of POSSIBLE safety or public interest significance.

The information presented is as initially received without verification or evaluation

_and is basically all that is known by IE staff as of this date.

. FACILITY: Virginia Electric and Power Company

)

North Anna, Unit No. 1 Docket No. 50-338 Louisa County, Virginia

SUBJECT:

SEISMIC BRACING NOT INSTALLED IN HEAT TRACING CABINETS The licensee reported _ that on February 15, a cons'truction supervisor observed that the interior bracing on the Unit No. 2 heat tracing controller cabinets for boron systems was different from those installed on Unit No. 1.

The licensee reported that a review of the eight chbinets installed in Unit No.1 revealed that a normally installed full length brace and g

~M of seismic' qualification testing, we,d to have been installed as a result

,d an additional brace that was suppose y

re not installed.

The normally jj

,."('

' installed brace, apparently mistaken by the construction workers as a l

' shipping brace, was removed and discarded. The additional seismic brace i

.was shipped with the cabinets but was never installed, presumably for p

the same reason.

g There has been no' media interest but interest is expected due to the O

continuing interest in VEPC0 and the North Anna licensing process.

The Q

Commonwealth of Virginia has been notified. A news release is not planned by the licensee nor NRC.

Region-II (Atlanta) received notification of this occurrence by telephone from the. Operations Superintendent at 4:32 p.m. on February 16.

This information is current as of 2:30 p.m. on February 17.

Contact:

GKlingler, IE X,28019 JSniezek, IE x28180 Distribution:

Transmitted H St @ F Chairman Hendrie.

Commissioner Bradford l Commissioner Kennedy.

S. J. Chilk, SECY C. C. Kammerer, CA

. Commissioner Gilinsky (For Distribution) l

' Transmitted:

MNBB @ ) I PBldg$3f-E. Vol au, I L. V. Gossick, EDO E. G.. Case, NRR Region l/ 7

~S. H 'Hanauer, ED0~

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lt J. J. Fouchard, PA

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'H R. Hartfield, MIPC C. V. Smith, NMSS T. J. McTiernan, 01A 1.

R. G. Ryan,'OSP

" "g R. Minogue, SD

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