ML20024F590

LER 83-092/03L-0:on 830817,east Wall Fire Barrier in Control Bldg Room CB-36-02 Declared Degraded When Unsealed Conduit Found in Newly Installed Juction Box.Caused by Personnel error.W/830831 Ltr

ML20024F590
Person / Time
Site:	Summer
Issue date:	08/31/1983
From:	Dixon O, Kolb L SOUTH CAROLINA ELECTRIC & GAS CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
LER-83-092-03L, LER-83-92-3L, NUDOCS 8309090500
Download: ML20024F590 (3)

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EVENT DESCRIPTION ANO PROBABLE CONSEQUENCES h I o 12 I I nn Aiin mr 17. 19A1. a t- 1710 hours0.0198 days <br />0.475 hours <br />0.00283 weeks <br />6.50655e-4 months <br />, with the Plant in Mode 1, the east wall fire l l0 l3 l l barrier in Control Building Rocm CB-36-02 was declared DmRADED when an unsealed l

jo p ll conduit in a newly installed junction box was found by Operations personnel.

9 lo ls l l Work was in progress to downgrade the wall to Non-Fire Rated, but the conduit was y l016ll installed prior to the downgrade. There were no adverse consequences because the  ;

l o 17 l l smoke de'tectors were OPERABLE and an hourly fire watch was establishal. g I o i s 'l l I

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CAUSE OESCRIPTION AND CORciECTIVE ACTIONS M ,

l1lo ll The cause of this occurrence is autributed to perscnnel error. 'Ihe occurrence j liii l l was discussed with the personnel involved. On August 23, 1983, tho subject fire j barrier was downgraded.

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Mr. James P. O'Reilly LER No.83-092 Page Two August 31, 1983 .

EVENT DESCRIPTI'N O AND PROBABLE CONSEQUENCES Ori August '17, 1983, at 1230 hours0.0142 days <br />0.342 hours <br />0.00203 weeks <br />4.68015e-4 months <br />, with the Flant in Mode 1, the East Wall, Fire Barrier in' Control Building Room CB-36-02 was declared DEGRADED when.an unsealed conduit in a newly installed junction box was found by Operations personnel. Work was in progress to downgrade the wall to Non-Fire Rated, but the conduit

< was installed prior to the downgrade. There were no adverse consequences as a result ~of this occurrence because the smoke detectors were OPERABLE and an hourly fire watch was established.

Action Statebant (a) of Technical Specification 3.7.10 requires that with one or more of the required fire-rated assemblies and/or sealing devices inoperable, within one hour, either establish a continuous fire watch on at least one side of the affected

'as'sembly, or verify 1the OPERABILITY of the fire detectors on at least*one side of the inoperable assembly and establish an hourly fire watch patrol. -Technical Specification 3.7.10 is applicable

- at,all times. -.

CAUSE'AND) CORRECTIVE ACTIONS ,

The'cause of this occurrence is attributed to personnel error.

The occurrence was discussed with'the personnel involved and on August 23, 1983, the subject' Fire Barrier was downgraded.

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SOUTH CAROLINA ELECTRIC & GAS COMPANY post owe:ce 7e4

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COLUMeiA. south CAROUNA 2921tf ' _,(,; ;; ,,

O. W. DixoN. JR.

Vics Paa.ioamt n nucle An OranAtlON.

August 31, 1983d< SD 6 Ag 34 Mr. James P. O'Reilly Regional Administrator U.S. Nuclear Regulatory Commission Region II, Suite 2900 101 Marietta Street, N.W.

Atlanta, Georgia 30303

SUBJECT:

Virgil C. Summer Nuclear Station Docket No. 50/395 Operating License No. NPF-12 Thirty Day Written Report LER 83-092

Dear Mr. O'Reilly:

Please find attached Licensee Event Report #83-092 for Virgil C.

Summer Nuclear Station. This Thirty Day Report is required by Technical Specification 6.9.1.13.(b) as a result of entry into Action Statement (a) of Technical Specification 3.7.10, " Fire Rated Assemblies," on August 17, 1983.

Should there be any questions, please call us at your convenience.

l Very truly yours,

/f, '

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l O. W. xon, J .

LEK:OWD/mac/fjc Attachment cc: V. C. Summer C. L. Ligon (NSRC)

E. H. Crews, Jr. G. J. Braddick T. C. Nichols, Jr.,/O. W. Dixon, Jr. J. C. Miller E. C. Roberts J. L. Skolds H. N. Cyrus J. B. Knotts, Jr. l Group / General Managers I&E (Washington)

O. S. Bradham Document Management R. B. Clary Brenah C. A. Price INPO Records Center A. R. Koon NPCF D. A. Lavigne File (Lic./Eng.)

J. F. Heilman OFFK:IAL Cdpi j

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