ML17311A457
| ML17311A457 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 12/02/1994 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | |
| Shared Package | |
| ML17311A456 | List: |
| References | |
| 50-528-94-31, 50-529-94-31, 50-530-94-31, NUDOCS 9412060061 | |
| Download: ML17311A457 (6) | |
Text
APPENDIX A NOTICE OF VIOLATION Arizona Public Service Company Palo Verde Nuclear Generating Station Dockets:
50-528 50-529 50-530 Licenses:
During an NRC inspection conducted on September 4 through October 15,
- 1994, four violations of NRC requirements were identified.
In accordance with the "General Statement of Policy and Procedure for NRC Enforcement Actions,"
10 CFR Part 2, Appendix C, the violations are listed below:
A.
10 CFR Part 50, Appendix B, Criterion XVI, requires in part that, measures be established to ensure that conditions adverse to quality, such as failures, malfunctions, deficiencies, deviations, defective material and equipment, and nonconformances are promptly identified and corrected.
In the case of significant conditions adverse to quality, the measures shall assure that the cause of the condition is determined and corrective action taken to preclude recurrence.
1.
Contrary to the above, as of October 1,
- 1994, measures had not been taken to ensure that a condition adverse to quality, identified on January 31,
- 1994, concerning two cells of the Unit 2 "D" 125 Vdc, safety-related battery had been promptly corrected.
The licensee had an opportunity to replace the two cells, which exhibited degraded individual cell voltages following a capacity discharge test, during a Unit 2 outage which continued through February 1994.
2.
Contrary to the above, as of August 31,
- 1994, measures did not assure that actions were taken to preclude recurrence of a significant condition adverse to quality identified on Narch 24, 1992.
This condition involved the low suction pressure trip of the "N" auxiliary feedwater
- pumps, which are included in the Technical Specifications and are important to safety.
Actions were taken to remove the trip from Unit 2, but actions were still incomplete for Units 1
and 3.
A low suction pressure trip occurred in Unit 3 following a reactor trip on August 31, 1994.
B.
This is a Severity Level IV violation (Supplement I) applicable to Units 1, 2and3.
Unit 2 Technical Specification (TS) 3. 1.2.7.a.
1 requires that in Node 5, with one startup channel high neutron flux alarm inoperable, determine the reactor coolant system (RCS) boron concentration at the time the alarm is determined to be inoperable and determine the RCS boron concentration at the frequency specified in the core operating limits report by either boronometer or RCS sampling.
94i2060061 941202 PDR ADOCK 05000528 8
The core operating limits report for Unit 2 Cycle 5, Table 5', required that in Mode 5, with Keff less than 0.95, the shutdown cooling system in
- service, and one operating charging pump, that the required monitoring frequency for boron concentration be every two hours.
Contrary to the above, on September 27, 1994, while in Mode 5, with Keff less than 0.95, the shutdown cooling system in service, and with one operating charging
- pump, the licensee removed one startup channel from service and did not determine the RCS boron concentration every two hours as required by either boronometer or RCS sampling.
This is a Severity Level IV violation (Supplement I) applicable to Unit 2.
Unit 3 TS 6.8. 1, requires, in part, that written procedures shall be established, implemented, and maintained covering the applicable procedures recommended in Appendix A of Regulatory Guide 1.33, Revision 2, February 1978.
Regulatory Guide 1.33, Revision 2, Appendix A, requires, in part, that maintenance that can affect the performance of safety-related equipment should be performed in accordance with written procedures.
Work Order (WO) 00656019, Amendment A, provided instructions to replace the motor terminal adapter of the safety-related Train B Essential Chiller in Unit 3.
Step A.5 of Amendment A states to torque the adapter per Specification 13-EN-306.
Contrary to the above, on April 5,
- 1994, maintenance technicians did not torque the motor terminal
- adapter, to the values specified in Specification 13-EN-306.
This is a Severity Level IV violation (Supplement I) applicable to Unit 3.
Unit 2 TS 6.8. 1 requires, in part, that written procedures shall be established, implemented, and maintained covering the applicable procedures recommended in Appendix A of Regulatory Guide 1.33, Revision 2, dated February 1978.
Regulatory Guide 1.33, Revision 2, Appendix A, requires, in part, written procedures for operation of the chemical and volume control system.
Licensee Procedure 420P-2CH01, Revision 13, "CVCS Normal Operations,"
which provides instructions for RCS dilutions, Step 9.3. 12 states, in part, that when the desired volume has been added to the
- RCS, ensure CHN-FV-210X closes by verifying no flow is indicated on CHN-FIC-210X.
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Contrary to the above, on September 7,
- 1994, when the desired volume of 100 gallons had been added to the RCS, the reactor operator (RO) did not ensure that CHN-FV-210X was closed and did not verify that there was no flow indicated on CHN-FIC-210X.
This is a Severity Level IV violation (Supplement I) applicable to Unit 2.
Pursuant to the provisions of 10 CFR 2.201, Arizona Public Service Company is hereby required to submit a written statement or explanation to the U.S.
Nuclear Regulatory Commission, ATTN:
Document Control
- Desk, Washington, D.C.
20555 with a copy to the Regional Administrator, Region IV, 611 Ryan Plaza Drive, Suite 400, Arlington, Texas
- 76011, and a copy to the NRC Resident Inspector at the facility that is the subject of this Notice, within 30 days of the date of the letter transmitting this Notice of Violation (Notice).
This reply should be clearly marked as a "Reply to a Notice of Violation" and should include:
(1) the reason for the violation, or, if contested, the basis for disputing the violation, (2) the corrective steps that have been taken and the results
- achieved, (3) the corrective steps that will be taken to avoid further violations, and (4) the date when full compliance will be achieved.
If an adequate reply is not received within the time specified in this Notice, an order or a
Demand for Information may be issued to show cause why the license should not be modified, suspended, or revoked, or why such other action as may be proper should not be taken.
Where good cause is shown, consideration will be given to extending the response time.
Dated at Arlingto
, Texas, this /payday of 1994
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