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 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 Method of Cause and Corrective Duration Shutting System Component Action to No. Date Type1 Hours Reason2 Down Reactor3 LER No. Code" Code5 Prevent Recurrence 10 10/01 222.7 A Refueling Outage continues 1 3/10 2.6 B N/A N/A N/A N/A 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 Reason: Hethod: Exhibit F-Instructions S-Scheduled A-Equipment Failure (Explain) 1-Hanual for Preparation of the Data B-Haintenance or Test 2-Hanual Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Continuation from (IIUREG 0161)

E-Operator Training 8 License Examination Previous Honth F-Administrative 5-Reduction of 20K G-Operational Error or Greater in the Exhibit H-Same Source 8-Other (Explain) Past 24 Hours 9-Other-(Explain) 880PP90355 880900528 0500 PDR ADOCN, 'p NU R

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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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