ML17313A633

Forwards LER 98-003-00 Prepared & Submitted Per 10CFR50.73.LER Repts out-of-tolerance Condition of Several MSSV Which Were Discovered During pre-outage Testing

ML17313A633
Person / Time
Site:	Palo Verde
Issue date:	10/02/1998
From:	Overbeck G ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17313A634	List: ML17313A633
References
192-01032-GRO-D, 192-1032-GRO-D, NUDOCS 9810130024
Download: ML17313A633 (6)

Text

(EGUL RY INFORMATION U'VA 98/10/02 Di.

DISTRIBUTI J

JV SYSTEM (RIDS)

¹ ACCESSION NBR:9810130024 DOC.DATE: NOTARIZED: NO DOCKET FACIL:STN-50-530 Palo Verde Nuclear Station, Unit 3, Arizona Publi 05000530 AUTH.NAPA . , AUTHOR AFFILIATION OVERBECK,G.R. Arizona Public Service Co. (formerly Arizona Nuclear Power RECIP.NAME RECIPIENT AFFILIATION Records Management Branch (Document Control Desk)

SUBJECT:

Forwards LER 98-003-00 prepared 5: submitted pursuant to 10CFR50.73.LER repts out-of tolerance condition of several MSSV which discovered during pre-outage testing.

DISTRIBUTION CODE, IE22T COPIES. RECEIVED:LTR I ENCL I SIZE: IQ TITLE: 50.73/50.9 Licensee Event Report (LER), Incident Rpt, etc.

NOTES:Standardized plant. 0500053(%

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD4-2 PD 1 1 FIELDS,M 1 1 INTERNAL: ACRS 1 A A RAB 2 2 AEOD/SPD/RRAB 1 1 FILE CENTE 1 1 NRR/DE/ECGB 1 1 NRR/DE/EELB 1 ~

1 NRR/DE/EMEB 1 1 NRR/DRCH/HICB 1 1 NRR/DRCH/HOHB 1 1 NRR/DRCH/HQMB 1 1 NRR/DRPM/PECB 1 1 NRR/DSSA/SPLB 1 1 RES/DET/EIB 1 1 RGN4 FILE 01 1 1 EXTERNAL: L ST LOBBY WARD 1 1 LITCO BRYCE,J H 1 1 NOAC POORE,W. 1 1 NOAC QUEENER,DS 1 1 NRC PDR 1 1 NUDOCS FULL TXT 1 1 0 NOTE TO ALL "RIDS" RECIPIENTS PLEASE HELP US TO REDUCE WASTE. TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LISTS OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTROE DESK (DCD) ON EXTENSION 415-2083 FULL TEXT CONVERS ION REQUIRED TOTAL NUMBER OF COPIES REQUIRED: LTTR 23 ENCL 23

Comm/tment. Innmat/Nt. &ergy.

Gregg R Overbectt Mail Station 7602 Palo Verde Nuclear Vice President TEL 602/393-5148 P.O. Box 52034 Generating Station Nuclear Production FAX 602/3936077 Phoenix, AZ 85072-2034 192-01032-GRO/DGM/RAS October 2, 1998 U. S. Nuclear Regulatory Commission ATl N: Document Control Desk Mail Station P1-37 Washington, DC 20555-0001

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Unit 3 Docket No. STN 50-530 License No. NPF-74 Licensee Event Report 98-003-00 Attached please find Licensee Event Report (LER) 98-003-00 prepared and submitted pursuant to 10 CFR 50.73. This LER reports the out-of-tolerance condition of several Main Steam Safety Valves (MSSV) which was discovered during pre-outage testing. The as-found lift pressures were greater than the tolerance allowed by Technical Specification Limiting Condition for Operation 3.7.1. Because several of the Unit 3 MSSVs had been previously replaced from warehouse stock, the condition was determined to be potentially transportable and Unit 1 and 2 MSSVs which had been replaced during the most recent outages were also tested. Unit 1 MSSV SGE-PSV-695 and Unit 2 MSSV SGE-PSV-556 were also found to have as-found lift pressures outside TS limits. APS commits to replacing the out-of-tolerance MSSVs with refurbished and recertified valves during the current and upcoming refueling outages and will supplement this LER upon completion of the event investigation.

In accordance with 10CFR50.73(d), a copy of this LER is being forwarded to the Regional Administrator, NRC Region IV. If you have questions regarding this submittal, please contact Daniel G. Marks, Section Leader, Regulatory Affairs, at (602) 393-6492.

Sincerely, G RO/DGM/RAS/rlh

'tt8TOT30024 98T002 PDR ADDCK 05000530 8 PDR

fj U. S. Nuclear Regulato ommission ATTN: Document Control Desk Licensee Event Report 50-530/98-003-00 Page 2 Attachment cc: E. W. Merschoff (all with attachment)

J. H. Moorman M. B. Fields INPO Records Center