ML20127L140
| ML20127L140 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 05/30/1985 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20127L118 | List: |
| References | |
| 50-414-85-12, NUDOCS 8506270758 | |
| Download: ML20127L140 (2) | |
See also: IR 05000408/2005003
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ENCLOSURE
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Duke Power Company
Docket No.
50-414
Catawba Unit 2
License No. CPPR-117
The following violations were identified during an inspection conducted on
April 8 - May 3, 1985. The Severity Levels were assigned in accordance with the
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NRC Enforcement Policy (10 CFR Part 2, Appendix C).
1.
10 CFR 50, Appendix B, Criterion V, and the accepted Quality Assurance (QA)
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program, Topical Report Duke 1A, requires that activities affecting quality
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shall be prescribed by and accomplished in accordance with documented
instructions, procedures, or drawings.
Contrary to the above, on April 19, 1985, temporary operating instruction
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TOI/2/A/6150/01, Initial Filling and Venting of the Reactor Coolant System
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and Control of NC System for NC Cold Hydro, was inadequate and was not
followed during Unit 2 cold hydrostatic testing activities in the following
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instances:
a.
It was not identified in TOI/2/A/6150/01 that there was no overpressure
protection for a portion of the residual heat removal (RHR) system in
that the header into which RHR relief valve 2ND31 discharged was
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isolated and no alternate relief path had been provided.
b.
Motor-operated valves 2NI173A and 2NI1788 were not closed as required
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by TOI/2/A/6150/01 when the reactor coolant system (RCS) was being
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pressurized, thereby allowing RCS pressure into the RHR system.
Items a. and b. above resulted in various piping, valves, and equipment in
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_ portions of the RHR system, boron recycle system, sampling system, and
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chemical and volume control system being overpressured to approximately 2000
psig for approximately three hours on April 19, 1985.
This is a Severity Level IV Violation (Supplement II).
2.
10 CFR 50, Appendix B, Criterion V, and the accepted QA program, Topical
Report Duke 1A, requires that activities affecting quality shall be
prescribed by documented instructions, procedures, drawings...
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' Contrary to the above, on April 20, 1985, TOI/2/A/6150/01 was inadequate in
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that it did not identify that there was no overpressure protection for the
volume control tank (VCT) due to the header into which VCT relief valve
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2NV223 discharged being isolated, and no alternate relief path had been
provided.
This resulted in total destruction of the VCT when it was
inadvertently overpressurized and ruptured during hydrostatic testing
activities.
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8506270758 850530
ADOCK 05000413
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Duke Power Company
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Docket No.
50-414
Catawba Unit 2
License No.
CPPR-117
This is a Severity Level IV Violation (Supplement II).
Pursuant to 10 CFR 2.201, you are required to submit to this office within 30
days of the date of this Notice, a written statement or explanation in reply,
including:
(1) admission or denial of the alleged violations; (2) the reasons
for the violations if admitted; (3) the corrective steps which have been taken
and the results achieved; (4) corrective steps which will be taken to avoid
further violations; and (5) the date when full compliance will be achieved.
Security or safeguards information should be submitted as an enclosure to
facilitate withholding it from public disclosure as required by 10 CFR 2.790(d)
or 10 CFR 73.21.
Date:
MAY 3 01965
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