ML16341E584
| ML16341E584 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 03/11/1988 |
| From: | Pate R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | |
| Shared Package | |
| ML16341E585 | List: |
| References | |
| 50-275-88-04, 50-275-88-4, 50-323-88-03, 50-323-88-3, NUDOCS 8803290012 | |
| Download: ML16341E584 (4) | |
Text
APPENDIX A NOTICE OF VIOLATION Pacific Gas and Electric Company Diablo Canyon Nuclear Power Plant Docket Nos.
50-275 and 50-323 License Nos.
DPR-80 and DPR-82 As a result of the inspection conducted during the period of February 8
through 22,
- 1988, and in accordance with the NRC Enforcement Policy, 10 CFR Part 2, Appendix C, the following violations were identified:
Plant Technical Specification 4.0.5 provides requirements for periodic inservice testing and states in part that, "Inservice...testing of ASME Code Class 1, 2, and 3 pumps and valves shall be performed in accordance with Section XI of the ASME Boiler and Pressure Vessel Code...."
A.
Subsection IWV-3417 of Section XI of the ASME code states in part that, "If, for power operated
- valves, an increase in stroke time of...
50K or more for valves with full-stroke times less than or equal to 10 sec is
- observed, test frequency shall be increased to once each month until corrective action is taken, at which time the original test frequency shall be resumed."
Contrary to the above, records for Unit 2 showed valve RCV-16 stroke time increased 142K on November 29, 1986 and the test frequency was increased to once each month.
The original 92 days valve stroke time test frequency was resumed after May 4, 1987, without the performance of valve corrective action in the form of repair, replacement or detailed engineering analysis.
This is a Severity Level IV violation (Supplement 1), applicable to Unit No.
2 ~
B.
Subsection IWP-3100 of Section XI of the ASME code states in part, "The resistance of the system shall be varied until
~.. the measured flow rate equals the corresponding reference value."
Contrary to the above, during the performance of the routine surveillance test of containment spray pump no. 1-1 (STP P-4B) on February 10, 1988, the reference flow rate of 300 a 5 gpm was not established.
This is,"-.a Severity Level IV violation (Supplement 1), applicable to Unit No. l.;
"1 (I
Pursuant to the provisions of 10 CFR 2.201, Pacific Gas and Electric Company, is hereby required to submit a written statement or explanation to the U.S.
Nuclear Regulatory Commission, ATTN:
Document Control Desk, Washington, DC 20555 with a copy to the Regional Administrator, Region V, and a copy to the NRC Resident Inspector, within 30 days of the date of the letter transmitting this Notice.
This reply should be clearly marked as a "Reply to a Notice of Violation" and should include for each violation:
(1) the reason for the violation if admitted, (2) the corrective steps that have been taken and the results achieved; (3) the corrective steps that have been taken to avoid further violations, and (4) the date when full compliance will be achieved.
8803290012 880311 PDR ADOCK 05000275 9
If an adequate reply is not received within the time specified in this Notice, an order may be issued to show cause why the license should not be modified, suspended, or revoked or why such action as may be proper should not be taken.
Consideration may be given to extending your response time for good cause shown.
FOR THE NUCLEAR R GUL Y COMMISSION Reactor Safety Branch Dated at Malnut Creek, California this o day of Nicer-4
, 1988