ML17306B095

Forwards LER 92-004-00 Re 921009 Invalid Control Room, Containment & Fuel Bldg Ventilation ESF Actuations.Addl Info Provided Re 921014 Event

ML17306B095
Person / Time
Site:	Palo Verde
Issue date:	11/02/1992
From:	James M. Levine ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17306B096	List: ML17306B095 ML17306B097
References
192-00808-JML-T, 192-808-JML-T, NUDOCS 9211090101
Download: ML17306B095 (6)

Text

ACCEI.ERAI'j D DISTRIBUTION DEMONSTRATION SYSTEM REGULi+RY INFORMATION DISTRIBUTZi

~SYSTEM (RIDE)ACCESSION NBR:9211090101 DOC.DATE: 92/ll/02 NOTARIZED:

NO DOCKET FAClL:STN-50-530 Palo Verde Nuclear Station, Unit 3, Arizona Publi 05000530 AUTH.NAME AUTHOR AFFILIATION LEVINE,J.M.

Arizona Public Service Co.(formerly Arizona Nuclear Power RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Forwards LER 92-004-00 re 921009 invalid control room, containment 6 fuel bldg ventilation ESF actuations.Addi info provided re 921014 event.DISTRIBUTION CODE: IE22T COPIES RECEIVED:LTR (ENCL i SIZE: TITLE: 50.73/50.9 Licensee Event Report (LER), Incident Rpt, etc.NOTES:Standardized plant.05000530S RECIPIENT ID CODE/NAME PD5 LA TRAMMELLFC INTERNAL:.

ACNW AEOD/DOA AEOD/ROAB/DSP NRR/DLPQ/LHFB10 NRR/DOEA/OEAB NRR/DST/SELB 8D~QDS~SPLB8Dl

%EG=F-I-'DF 0 2 RGN5 FILE 01 EXTERNAL: EGSG BRYCEFJ.H NRC PDR NSIC POOREFW.COPIES LTTR ENCL 1 1 1 1 2 2 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 2 2'1 1 1 1 RECIPIENT ID CODE/NAME PD5 PD ACRS AEOD/DSP/TPAB NRR/DET/EMEB 7E NRR/DLPQ/LPEB10 NRR/DREP/PRPB11 NRR/DST/SICB8H3 NRR/DST/SRXB 8E RES/DSIR/EIB L ST LOBBY WARD NSIC MURPHYFG A NUDOCS FULL TXT COPIES LTTR ENCL 1 1 2 2 1 1 1 1 1 1.2 2 1 1 1 1 1 1 1 1 1 1 1 1 NOTE TO ALL RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE!CONTACT THE DOCUMENT CONTROL DESK.ROOh<Pl-37 (EXT.504-2065)TO ELIMINATE YOUR NAME FROhf DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!FULL TEXT CONVERSION REQUIRED TOTAL NUMBER OF COPIES REQUIRED: LTTR 31 ENCL 31

Arizona Public Service Company PALO VERDE NUCLEAR GENERATING STATION P.O, BOX 52034~PHOENIX.ARIZONA 85072-2034 JAMES M.LEVINE VICE RAESIDENT NVCI.EAA RAODUCTION 192-00808-JUL/TRB/KR November 2, 1992 U.S.Nuclear Regulatory Commission Attention:

Document Control Desk Mail Station Pl-37 Washington, D.C.20555

Dear Sirs:

Subj ect: Palo Verde Nuclear Generating Station (PVNGS)Unit 3 Docket No.STN 50-530 (License No.NPF-74)Licensee Event Report 92-004-00 File'2-020-404 Attached please find Licensee Event Report (LER)92-004-00 prepared and submitted pursuant to 10CFR50.73.

This LER reports the October 9, 1992 Unit 3 inadvertent Train A Containment Purge Isolation Actuation System (CPIAS), Train A Control Room Essential Filtration Actuation System (CREFAS), Train A Control Room Ventilation Isolation Actuation System (CRVIAS), and Train A Fuel Building Essential Ventilation Actuation System (FBEVAS)Balance of Plant Engineered Safety Feature Actuation System (BOP ESFAS)(JE)actuations resulting from a loss of power to the Train A BOP ESFAS Cabinet (SAA-C02A)(i.e., relays deenergize to actuate)which occurred when a reactor operator inadvertently deenergized the wrong Train A Class 1E 480V Switchgear Load Center.This LER also provides additional information on the October 14, 1992 Unit 3 inadvertent Train B CPIAS, CREFAS, FBEVAS BOP ESFAS actuations which occurred when a reactor operator did not ensure that the Train B BOP ESFAS relays were placed in bypass.Although the October 14, 1992 event is no longer reportable under new regulations, an event description is provided in Section V.ADDITIONAL INFORMATION due to the similarities and close proximity of both events.In accordance with 10CFR50.73(d), a copy of this LER is being forwarded to the Regional Administrator, NRC Region V.If you have any questions, please contact T.R.Bradish, Compliance Manager, at (602)393-5421, Very truly yours, JML/TRB/KR Attachment

<nw a 92ii090i 5000gg0 PDR ADaCK 0 PDR S V i NRC Document Control Desk Page 2 Licensee Event Report 3-92-004-00 CC: W, F.Conway J.B.Martin J.A.Sloan INPO Records Center (all with attachment)