ML17313A880

Monthly Operating Repts for Mar 1999 for Pvngs,Units 1,2 & 3.With 990412 Ltr

ML17313A880
Person / Time
Site:	Palo Verde
Issue date:	03/31/1999
From:	Fulton J, Overbeck G ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
035-00533-GRO-J, 35-533-GRO-J, NUDOCS 9904160145
Download: ML17313A880 (8)

Text

CATEGORY 1 .

REGULATORY INFORMATION DISTRIBUTIOh SYSTEM (RIDS)

ACCESSION NBR:9904160145 DOC.DATE: DOCKET ¹ FACIL:STN-50-528 Palo Verde Nuclear Station, Unit 1, Arizona Publi 05000528 STN-50-529 Palo Verde Nuclear Station, Unit 2, Arizona Publi 05000529 STN-50-530 Palo Verde Nuclear Station, Unit 3, Arizona Publi 05000530 AUTH. NAME AUTHOR AFFILIATION FULTON,J.D. Arizona Public Service Co. (formerly Arizona Nuclear Power OVERBECK,G.R. Arizona Public Service Co. (formerly Arizona Nuclear Power RECIP.NAME RECIPIENT AFFILIATION

SUBJECT:

Monthl o crating repts for Mar 1999 for PVNGS,Units 1,2 & A 1th 9 T

DISTRIBUTION CODE: IE24D COPIES RECEIVED:LTR I ENCL 1 SIZE:

TITLE: Monthly Operating Report (per Tech Specs)

NOTES: STANDARDIZED PLANT 05000528 Standardized plant. 05000529 Standardized plant. 0500053(P RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD4-2 PD "1 1 FIELDS,M 1 1 INTERNAL: AC 1 1 AEOD/SPD/RRAB 1 1 LE CENTER 01 1 1 OC/DBA/PAD 1 1 1 1 EXTERNAL: LMITCO MARSHALL 1 1 NOAC 1 1 D NRC PDR 1 1 E

NOTE TO ALL ERIDSU 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 CONTROL DESK (DCD) ON EXTENSION 415-2083 TOTAL NUMBER OF COPIES REQUIRED: LTTR 10 ENCL 10

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Gregg R. Overbeck Mail Station 7602 Palo Verde Nuclear Vice President TEL 602/393-5148 P.O. Box 52034 Generating Station Nuclear Production FAX 602/3934077 Phoenix, AZ 85072-2034 035-00533-8 RO/JDF April 12, 1999 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station P1-37 Washington, DC 20555

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Units 1, 2, and 3 Docket Nos. STN 50-528/529/530 Monthly Operating Reports for MARCH 1999 Enclosed are the Monthly Operating Reports for March 1999, prepared and submitted pursuant to Specification 6.9.1.6 of Appendix A (Technical Specifications) to the PVNGS Units 1, 2, and 3 Operating Licenses.

By copy of this letter, Arizona Public Service Company is also forwarding the Monthly Operating Reports to the Regional Administrator, NRC Region IV.

If you have any questions, please contact Judy Fulton at (602) 250-3549.

Sincerely, GRO/JDF/cj

Enclosures:

MARCH 1999 Monthly Operating Reports cc: E. W. Merschoff (all w/enclosures)

P. H. Harrell Records Center'NPO 6

WSS Utility Data Institute ~

9't/04ih0i45,9'tt033i PDR ADOCK 05000528 R PDR

t NRC MONTHLYOPERATING DATA REPORT t

DOCKET NO.: 50-528 UNIT NAME: ~ PVNGS-1 DATE: 4/12/99 COMPLETED BY: J. D. Fulton TELEPHONE: 602 250-3549 Reporting Period: March 1999

1. Design Electrical Rating (Net MWe): 1265

2. Maximum Dependable Capacity(Net MWe): 1243 58@+~~

.: ~Yr~Tto:-Date~

Unit>1 Generatin Sta istics m ~This*;Nionth ~Cumulative I eactor~was! Critical'HR~

691.8 2,107.8 83,977.0 Hours 4 ~t

~++4 Generator~was'On-Line W I+4+ + 684.1 2,100.1 82,730.7

~INIIIIIIIIIIP@II@kl f t]Reserve:Shutdown

~*a Hours 0.0 0.0 0.0 837,120 2,602,229 98,380,510 UNIT SHUTDOWNS Outage Method of Duration Shutting Down Cause and Corrective Action No. Date Type" Hours Reason2 Reactor3 to Prevent Occurrence 99-01 3/1 0 F 599 G RX trip on high pressurizer pressure precipitated by operator going to emergency off on steam bypass control needed to respond to turbine controls malfunction.

F-Forced 2Reason: sMethod:

S-Scheduled A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Trip / Scram C-Refueling 3-Automatic Trip / Scram D-Regulatory Restriction 4-Continuation E-Operator Training / License Examination 5-Other-(Explain)

F-Administrative G-Operational Error (Explain)

H-Other (Explain)

SUMMARY

Aninvesti ationhasdeterminedthatthereactortri edduetohi h ressurizer ressurewhenthe seconda heat removal was reduced b o erations lacin the SBCS to emer enc -off. A relimina evaluation has determined the a arent root cause to be ersonnel error in that su erviso methods did not ensure that sufficient information was collected to su ort o erations decision to lace the SBCS in emer enc -off.

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NRC MONTHLYOPERATING DATA REPORT DOCKET NO.: ~ '50-529 UNIT NAME: PVNGS-2 DATE: 4/12/99 COMPLETED BY: J. D. Fulton TELEPHONE: 602 250-3549 Reporting Period: March 1999

1. Design Electrical Rating (Net MWe): 1265

2. Maximum Dependable Capacity(Net MWe): 1243

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          ,                                     Eiie'r'gy',:.Gen'er'ated:,'(MWh)                                  g> 313.E-2~~ j}1<

X:XP'EP I 776,154 2,575,586 100,089,971 UNIT SHUTDOWNS Outage Method of Duration Shutting Down Cause and Corrective Action No. Date Type" Hours Reason2 Reactor3 to Prevent Occurrence 99-01 3/27 S 120.0 C Unit began eighth refueling outage.

  'F-Forced                           ~Reason:                                                                                                                       3Method:

S-Scheduled A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Trip / Scram C-Refueling 3-Automatic Trip / Scram D-Regulatory Restriction 4-Continuation E-Operator Training /License Examination 5-Other-(Explain) F-Administrative G-Operational Error (Explain) H-Other (Explain)

SUMMARY

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NRC MONTHLYOPERATING DATA REPORT DOCKET NO.: '50-530 UNlT NAME: PVNGS-3 DATE: 4/12/99 COMPLETED BY: J. D. Fulton TELEPHONE: 602 250-3549 Reporting Period: March 1999

1. Design Electrical Rating (Net MWe): 1269

2. Maximum Dependable Capacity(Net MWe): 1247 j~>tlIj@Pi!"t%8IjirjNI!tIINNtlt> tN

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     '*HoursI Reactor Lwas-:Critica                                                    744.0                  2,160.0              79,355.6 IIIIIIIII!IIIIIltilI5jiINI(
               ,IGenerator<<was,.On;Line,          ~                                    744.0                  2,160.0              78,495.7
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      ¹t,.'.Electrtcal'.,EnergyiGenerated:(MWh)                                    931,208                2,709,931             95,063,808 UNIT SHUTDOWNS Outage                        Method of Duration                    Shutting Down                  Cause and Corrective Action No.           Date           Type'ours                    Reason2       Reactor                          to Prevent Occurrence No reactor shutdowns occurred during the month of March 1999.

"F-Forced 2Reason: 3Method: S-Scheduled A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Trip / Scram C-Refueling 3-Automatic Trip / Scram D-Regulatory Restriction 4-Continuation E-Operator Training / License Examination 5-Other-(Explain) F-Administrative G-Operational Error (Explain) H-Other (Explain)

SUMMARY

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