ML20234B211

Special Rept SR-87-002-00:on 870606,high Range Gas Monitor Inoperable Greater than 7 Days.Caused by Faulty Display Module & Lack of Spares & Quality Documentation.Module Replaced & Monitor Returned to Svc After Functional Test

ML20234B211
Person / Time
Site:	Waterford
Issue date:	06/29/1987
From:	Carns N LOUISIANA POWER & LIGHT CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
SR-87-002-00, SR-87-2, W3A87-0074, W3A87-74, NUDOCS 8707020281
Download: ML20234B211 (3)

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10CFR50.36(c)(2) i 1

LoulSIANA /

POWER & LlGHT WATERFORD 3 SES a P. O. BOX B e KILLONA. LA 70066

$SONsYSS$

June 29, 1987 W3A87-0074 A4.05 QA U.S. Nuclear Regulatory Commission ATTENTION:

Document Control Desk Washington, D.C.

20555

SUBJECT:

Waterford 3 SES Docket No. 50-382 License No. NPF-38 Reporting of Special Report Attached is Special Report Number SR-87-002-00 for the Waterford Steam Electric Station Unit 3.

This Special Report is submitted per 10CFR50.36(c)(2) and Technical Specifications 6.9.2 and 3.3.3.1.

Very truly yourc,

'h N.S. Carns Plant Manager - Nuclear NSC/ DEB:rk Attachment ec R.M. Martin, NRC Resident Inspectors Office, INPO Records Center (J.T. Wheelock), E.L. Blake, W.M. Stevenson, J.H. Wilson pg7oRBBD.BEyga S

"AN EQUAL OPPORTUNITY EMPLOYER"

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e SPECIAL REPORT j

SR-87-002-00 Faulty Display Module Rendered a High Range Gas Monitor inoperable Greater than Seven Days INTRODUCTION At 0112 hours0.0013 days <br />0.0311 hours <br />1.851852e-4 weeks <br />4.2616e-5 months <br /> on June 6, 1987, Waterford Steam Electric Station Unit 3 was operating at 100% power when operating personnel noted Fuel Handling Building (FHB) Emergency Exhaust High Range Gas Monitor, PRM-IRE-3032 reading zero on all scales and declared the monitor inoperable.

In accordance with Technical Specification 3.3.3.1 Action 27, Health Physics personnel established the preplanned alternate method for monitoring FHB ventilation emergency exhaust as defined in procedure EF-2-050, "Off-Site Dose Assessment (Manual)".

Since the monitor could not be returned to service within seven days, this report is being submitted pursuant to Technical Specifications 3.3.3.1 Action 27 and 6.9.2.

NARRATIVE On June 6, 1987, Waterford Steam Electric Station Unit 3 was operating at 100% reactor power when Operations personnel noticed that all channels of the FHB Ventilation Emergency Exhaust Radiation Monitor Display Module on Control Panel 6 were reading zero and the corresponding radiation monitor readout and operate lights were extinguished. Therefore, at 0112 the radiation monitor was declared inoperable.

In accordance with Technical Specification 3.3.3.1 Action 27, Health Physics personnel established the preplanned alternate method of monitoring FHB Ventilation emergency exhaust as defined in procedure EP-2-050, "Off-Site Dose Assessment (Manual)".

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s The cause of the event was a faulty display module.

Since no modules were availeble in the warehouse, the faulty module was replaced with an installed spare on June 8, 1987 and a new replacement was ordered.

Since quality documentation for the installed spare was not readily available, the monitor was not tested or declared operabic at this time.

The new module did not arrive as scheduled, therefore the seven day time limit was exceeded. The installed spare has been verified to be properly qualified.

A functional test was satisf actorily performed and the monitor was returned to service on June 16, 1987.

Since the monitor was not returned to service before the end of the seven day limit (June 13, 1987), as defined in Technical Specification 3.3.3.1 Action 27, this Special Report is submitted pursuant to Specification 6.9.2.

Since Health Physics personnel had an alternate method of monitoring FHB Ventilation Emergency exhaust, the inoperability of the monitor did not pose a safety concern.

PLANT CONTACT T.H. Smith, Maintenance Superintendent, 504/464-3138.

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