ML20149G235

Special Rept 97-001:on 970704,radiation Monitor R-60C Declared Inoperable Due to Monitor Normal Light Not Being Lit & Erroneous Data Indicated on Plant Computer.Mandatory LCO Written for Monitor R-60C

ML20149G235
Person / Time
Site:	Farley
Issue date:	07/18/1997
From:	Dennis Morey SOUTHERN NUCLEAR OPERATING CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9707230067
Download: ML20149G235 (3)

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Dan Mmy S:uthern Nuclear Vice President Opuating Company Farley Project P.O. Box 1295 Birmingham. Alabama 35201 Tel 205.992.5131 SOUTHERN h k COMPANY July 18,1997 Enery to Serve YourWorld" Docket No.: 50-348 10 CFR 50.4 i U.S. Nuclear Regulatory Commission

. ATTN: Document Control Desk Washington,DC 20555 Joseph M. Farley Nuclear Plant - Unit 1  !

Snecial Renort No.97-001. Inonerable Radiation Monitor R-60C Ladies and Gentlemen:

In accordance with the requirements of Technical Specification 3.3.3.1, the enclosed Special Report No.97-001, Unit 1, is submitted. l l

If you have any questions, please advise.

i Respectfully submitted, 1 Dave Morey MJA/ cit:sr-R-60C. doc Enclosure

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cc: Mr. L. A Reyes, Region II Administrator Mr. J. I. Zimmerman, NRR Project Manager gp) j Mr. T. M. Ross, Plant Sr. Resident Inspector l

9707230067 970718 PDR ADOCK 05000348:

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ENCLOSURE Joseph M. Farley Nuclear Plant, Unit 1 Special Report 97-001 Inonerable Radiation Monitor R-60C l

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i ENCLOSURE' i

Snecial Renort for Inonerable Radiation Monitor R-60C l

This Special Report is being submitted due to the Unit I radiation monitor R-60C (Main  !

Steam Relief and Atmospheric Steam Dump Discharge) not being restored to operable status j within the time required by Technical Specification (TS) 3.3.3.1- TS 3.3.3.1 requires the

' monitor to be restored to operable status within 7 days or submit a Special Report within the next 14 days following the event.

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. At 0050 on July 4,1997, during performance of FNP-1-STP-1.0, " Operations Daily and Shift L

Surveillance Requirements," radiation monitor R-60C (Main Steam Relief and Atmospheric

- Steam Dump Discharge) was declared inoperable due to the monitor nonnal light not being lit

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and erroneous data indicated on the plant computer. A mandatory Limiting Condition of '

Operation (LCO) was written for R-60C requiring restoration to operable status by 0050 on July 11,1997, and a work order was generated to repair R-60C.

Maintenance troubleshooting isolated the problem to the detector. Due to the detector . l location (main steam valve room roofin close proximity to steam generator safety relief valve discharges), repair of the monitor is a potential safety concern should any relieflift during the repair effort. Therefore, repair of the monitor should be performed only under cold shutdown - 1 conditions to ensure personnel safety. R-60C is scheduled to be repaired during the next

! - outage of sufficient duration where the plant will be in cold shutdown. TS action statement i requirements are being met for radiation monitor R-60C. -

AdditionalInformation The following Special Reports have been submitted for similar radiation monitors exceeding the LCO restoration time due to inaccessibility with the unit operating at power:

Special Report 88-023-00 (Unit 1) - Radiation Monitor R-60A Inoperable For More Than Seven Days-

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Special Report 90-006-01 (Unit 2) - Radiation Monitor Inoperable For More Than Seven Days Special Report 90-007-00 (Unit 2)'- Radiation Monitor Inoperable For More Than Seven Days i

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