ML17299A495

Special Rept 1-SR-85-014:on 850708,containment High Range Monitor RU-149 Declared Inoperable Due to Erroneous Readings.Caused by Exceeding 72 H Action Statement for Operability of Monitor.Circuit Board Replaced

ML17299A495
Person / Time
Site:	Palo Verde
Issue date:	08/07/1985
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
1-SR-85-014, 1-SR-85-14, ANPP-33183-EEVB, NUDOCS 8508190262
Download: ML17299A495 (4)

Text

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'ARC' Arizona Nuclear Power Prqjyct P.O.BOX52034 ~ PHOENIX.ARIZONA8507MR4~08 l 2 PI) Q: 48 REGlag V g,g Mr. John B. Martin, Regional Administrator August 7, 1985 Office of Inspection and Enforcement ANPP-33183-EEVB/GEC U.S. Nuclear Regulatory Commission Region V 1450 Maria Lane, Suite 210 Walnut Creek, CA 94596-5368

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Unit 1 Special Report Exceeding Action Statement for Operability of the Containment Area High Range Monitor File: 85-056-026 G.l.01.10

Dear Mr. Martin:

Attached please find a Special Report prepared and submitted pursuant to Specification Table 3.3-6 (Radiation Monitoring Instrumentation) and 6.9.2 of Appendix A (Technical Specifications) to the Palo Verde Nuclear Generating Station, Unit No. 1 Operating License. This report discusses the exceeding of the 72-hour ACTION Statement for the operability of the Containment Area High Range Monitor (RU-149).

If you have any questions or concerns, please contact me.

Very truly yours, ZzV~~/~y E. E. Van Brunt, Jr.

Executive Vice President Project Director EEVB/GEC/slh Attachments cc: R. P. Zimmerman (all w/a)

A. L. Hon E. A. Licitra A. C. Gehr INPO Records Center 8508l90262 850807 PDR ADOCK 05000628 8 PDR

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John B. Marti~

ANPP-33183 PALO VERDE NUCLEAR GENERATING STATION UNIT 1 SPECIAL REPORT 1-SR-85-014 DOCKET NO. STN 50-528 LICENSE NO. NPF-41 This Special Report is required by Palo Verde Unit Pl Technical Specification Table 3.3-6, ACTION 27-3.

On July 8, 1985, the 72-hour ACTION statement for operability of the Containment Area High Range Monitor (RU-149) was exceeded.

This monitor was declared inoperable due to erroneous readings.

Technical Specification Table 3.3-6, ACTION 27-1, requires a monitoring program be initiated upon RU-149 being declared inoperable in excess of 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. Emergency Plan Implementing Procedure kl4 was used to satisfy this requirement. This procedure was reviewed by Resident NRC Inspector.

RU-149 was declared operable on July 10, 1985, following a circuit board replacement and performance of the appropriate surveillance requirement.

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