ML17304B190

Special Rept 3-SR-89-002:on 890418,radiation Monitor Inoperable for Greater than 72 H.Incident Result of Core Being off-loaded to Spent Fuel Pool for Refueling

ML17304B190
Person / Time
Site:	Palo Verde
Issue date:	05/03/1989
From:	Haynes J ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
192-00480-JGH, 192-480-JGH, 3-SR-89-002, 3-SR-89-2, NUDOCS 8905260381
Download: ML17304B190 (6)

Text

ACCELERATED D1S+lBUTION DEMONSTRlOY SYFTEg l/

gg I REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:8905260381 DOC.DATE: 89/05/03 NOTARIZED: NO DOCKET I FACIL:STN-50-530 Palo Verde Nuclear Station, Unit 3, Arizona Publi 05000530 AUTH. NAME AUTHOR AFFILIATION HAYNESEJ.G. Arizona Nuclear Power Project (formerly Arizona Public Serv RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Special Rept 3-SR-89-002:on 890418,radiation monitor inoperable for greater than 72 h.

DISTRIBUTION CODE: IE22D COPIES RECEIVED:LTR / ENCL i SIZE:

TITLE: 50.73/50.9 Licensee Event Report (LER),incident Rpt, etc.

NOTES:Standardized plant. 05000530 ~

RECIPIENT COPIES RECIPIENT 'OPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD5 LA 1 1 PD5 PD 1 1 DAVIS,M.J. 1 1 DAVIS,M 1 1 INTERNAL: ACRS MICHELSON 1 1 ACRS MOELLER 2 2 ACRS WYLIE 1 1 AEOD/DOA 1 1 AEOD/DSP/TPAB 1 1 AEOD/ROAB/DSP 2 2 DEDRO 1 1 IRM/DCTS/DAB 1 1 NRR/DEST/ADE 8H 1 1 NRR/DEST/ADS 7E 1 0 NRR/DEST/CEB 8H 1 1 NRR/DEST/ESB 8D 1 1 NRR/DEST/ICSB 7 1 1 NRR/DEST/MEB 9H 1 1 NRR/DEST/MTB 9H 1 1 NRR/DEST/PSB 8D 1 1 NRR/DEST/RSB 8E 1 1 NRR/DEST/SGB 8D 1 1 NRR/DLPQ/HFB 10 NRR/DOEA/EAB NUDOCS-ABSTRACT ll 1 1

1 1

1 1

NRR/DLPQ/PEB NRR DREP/RPB 10 10 02 1

2 1

1 2

1 RES/DSIR/EIB 1 1 RES/DSR/PRAB 1 1 RGN5 FILE 01 1 1 EXTERNAL EG&G WILLIAMSI S 4 4 FORD BLDG HOY,A 1 1 R L ST LOBBY WARD 1 1 LPDR 1 1 ~

NRC PDR 1 1 NSIC MAYS,G 1 1 I NSIC MURPHY,G.A 1 1 NOTES 1 1 D S

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D NOTE 'IO ALL "RIDS" RECIPZEPIS:

S PIZAS HELP US K) REDUCE HASTE'DNTACI'IHE DOCUMEN1'ONTROL DESKI ROON Pl-37 (EFZ. 20079) K) ELXKI2QTE KX3R KLME PKM DISTRZK7ZION LISTS FOR DOCUMEKZS VXJ DON'T NEEDt TOTAL NUMBER OF COPIES REQUIRED: LTTR 45 ENCL 44

Arizona Nuclear Power Project P.O, BOX 52034 ~ PHOENIX. ARIZONA 85072-2034 192-00480-JGH/TDS/DAJ Hay 3, 1989 U. S. Nuclear Regulatory Commission NRC Document Control Desk Washington, D.C. 20555

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Unit 3 Docket No. STN 50-530 (License No. NPF-74)

Special Report 3-SR-89-002 File: 89-020-404 Attached please find Special Report 3-SR-89-002 prepared and submitted pursuant to Technical Specifications 3.3.3.8 ACTION 42b and'6.9.2. This report discusses inoperable Radioactive Gasesous Effluent Honitors resulting from a planned electrical bus outage during the Unit 3 refueling.

If you have any questions, please contact T. D. Shriver, Compliance Hanager, at (602) 393-2521.

Very tru y yours, pg J. G. Haynes Vice President Nuclear Production JGH/TDS/DAJ/kj Attachment cc: D. B. Karner (all w/attachments)

E. E. Van Brunt, Jr.

J. B. Hartin T. J. Polich H. J. Davis A. C. Gehr INPO Records Center 5p&a 89p5 ~

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PALO VERDE NUCLEAR GENERATING STATION UNIT 3 Radiation Honitoring Unit Inoperable for Greater Than 72 Hours License No. NPF-74 Docket No. 50-530 Special Report No. 3-SR-89-002 This Special Report is being submitted pursuant to Technical Specification 3.3.3.8 ACTION 42b and Technical Specification 6.9.2 to report a condition wherein the Plant Vent System and Fuel Building Ventilation System Radioactive Gaseous Effluent High Range Monitors were inoperable for greater than 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. The 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> limit for returning the Plant Vent System High Range Honitor (RU-144) to operability was exceeded at approximately 1815 HST on April 18, 1989. The 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> limit for returning the Fuel Building Ventilation System High Range Honitor (RU-146) to operability was exceeded at approximately 1930 HST on April 18, 1989.

On April 15, 1989, Palo Verde Unit 3 was in Mode 6 (REFUELING) with the core being off-loaded to the Spent Fuel Pool. In order to perform scheduled maintenance during the refueling outage, the "B" Train Class 1E 4160 volt bus (3E-PBB-S04) was to be de-energized. This bus supplies power to RU-144 and RU-146; therefore, the monitors were removed from service at approximately 1815 HST and 1930 NST respectively on April 15, 1989. Pursuant to Technical Specification 3.3.3.8 ACTION 42a, the Preplanned Alternate Sampling Program was initiated to monitor the Plant Vent and Fuel Building Ventilation Systems as needed.

Following the "B" Train electrical outage, RU-144 and RU-146 will be returned to service during the refueling outage.