ML17304A576
| 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: |
| 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
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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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