ML17304A576

Corrected Monthly Operating Rept for Mar 1988 for Palo Verde Unit 1

ML17304A576
Person / Time
Site:	Palo Verde
Issue date:	09/13/1988
From:	BLOOM T J ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:
Shared Package
ML17304A570	List: ML17304A568 ML17304A572 ML17304A574 ML17304A576
References
NUDOCS 8809290355
Download: ML17304A576 (4)

Text

SHUTDOWNS AND POWER REDUCTIONS MARCH 1988 DOCKET NO.50-528 UNIT NAME PVNGS-1 DATE COMPLETED BY T.J.Bloom No.Date Type1 Method of Duration Shutting System Component Hours Reason2 Down Reactor3 LER No.Code" Code5 Cause and Corrective Action to Prevent Recurrence 10 10/01 1 3/10 222.7 A 2.6-B N/A N/A N/A N/A Refueling Outage continues Manually tripped Main Turbine for Overspeed Testing.2 3/22 N/A N/A N/A N/A Reactor power reduced to 80%due to SG Chemistry being out of specification as a result of the polishers being out of service for regeneration.

F-Forced S-Scheduled Reason: A-Equipment Failure (Explain)B-Haintenance or Test C-Refueling D-Regulatory Restriction E-Operator Training 8 License Examination F-Administrative G-Operational Error 8-Other (Explain)880PP90355 880900528 R PDR ADOCN, 0500 NU'p Hethod: 1-Hanual 2-Hanual Scram 3-Automatic Scram 4-Continuation from Previous Honth 5-Reduction of 20K or Greater in the Past 24 Hours 9-Other-(Explain)

Exhibit F-Instructions for Preparation of the Data Entry Sheets for Licensee Event Report (LER)File (IIUREG 0161)Exhibit H-Same Source I(i~C ATTACHMENT 2 Februar 1986-Based on a change in the PVNGS Unit 1 Commercial Operation Date from February 13, 1986 to January 28, 1986, the forced outage hours (115.0)during that time period need to be included as appropriate.

arch 1986-On March 7, 1986, PVNGS Unit 1 commenced a planned manual shutdown for surveillance testing.However, the reactor automatically tripped prior to completing the shutdown.This planned surveillance testing outage was incorrectly listed as a forced outage and the 581.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> should have been listed as scheduled outage hours.A ril 1986-The planned surveillance outage continued through April for PVNGS Unit 1 and the 720.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> should have been listed as scheduled outage hours.March 1988-PVNGS Unit 1 began a scheduled refueling outage on October 1, 1987 which continued until January 10, 1988 when a forced outage was entered due to an inoperable control element assembly.Subsequently, on March 1, 1988, Unit 1 returned to the scheduled refueling outage for a period of 222.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />.In summary, 1186 forced outage hours (-115+581+720)should be deleted for 1986.For 1988, 222.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br /> should be deleted from the total forced outage hours.

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