ML20033G821
| ML20033G821 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 03/30/1990 |
| From: | Ebneter S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20033G820 | List: |
| References | |
| 50-338-89-35, EA-90-021, EA-90-21, NUDOCS 9004120173 | |
| Download: ML20033G821 (2) | |
Text
I 9
NOTICE OF VIOLATION Virginia Electric and Power Company Docket No.
50 338 North Anna Unit 1 License No. NPF 4 EA 90 021 DuringthehuclearRegulatoryCommission(hkC)inspectionconductedon Novem>er 18, 1989 through Jervery 3,1990, violations of NRC requirements were identified.
In accordance with the
- General Statement of Polic for hRC [nforcement Actions " 10 CFR Part 2. /ppendix C. (1989)y and Procedure
, the violations are listed below:
1.
Technical Specification 3.6.1.1. which is epplicable with the unit in Modes 1-4, requires that, without primary containment integrity, restore containrient integrity to the unit within one hour or be in a least hot standby within the next six hours end in cold shutdown within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. Centeinment integrity exists when each containment air lock is operable pursuant to Technical Specification 3.6.1.3., which requirts thn both doors for each air lock be closed except when the air lock is being used for normal transit.
Contrary to the above, Unit I was operated in Modes 1 and 2 between December 20, 1909 and December 29, 1989, without containment integrity on the equipment h6tch escape air lock, and the unit was not placed in hot standby or cold shutdown within the required time.
During this period, in which the equipment batch escape air lock was not being used for normal transit, the har*htel operating mechanism for the escape air lock inner door was not secured in the fully closed position.
Consequently, the pressure equalizing velve between the containment and the escape air lock was partially opsn resulting in the inner air lock door not being fully closed.
This is a Severity Level 111 violation (Supplement 1).
2.
10 CFR 50.72(b)(1)(ii) requires, in part, that if any event or condition during operation results in the condition of nuclear power plant, including its principal safety barriers, being seriously degraded the licensee shall notify the NRC as soon as practical and in all cases within one hour of the occurrence of the event or condition.
10 CFR 50.72(b)(2)(iii)(C) requires that the licensee notify the NRC as soon as practical and in all casts, within four hours of the occurrence of any event or condition that could alone have prevented the fulfillment of the safety function of a structure or system needed to control the release of radioactive material.
Contrary to the above, at 10:30 pm on December 28, 1989, with the plant in operation, it was discovered that the Unit 1 containment equipment escape air lock, which forms a portion of one of the plant's principal safety barriers, was untble to fulfill its safety function due to leakage through both the outer door and inner door's air lock equalizing valve.
NRC was not notified of the event until 10:40 am Decernber 29, 1989.
This is a Severity Level IV violation (Supplement 1).
9004120173 900330 PDR ADOCK 05000338 Q
o.
. i
.iotice of Violation 2-Pursuant to the provisions of 10 CFR 2.201, Virginia Electric and Power Company is hereby required to submit a written statenent or explanation to the Director, Of fice of Enforcerent, U.S. Nuclear Regulatory Commission, within 30 d6ys of the date of this Notice.
This reply should be clearly marked as a
- Reply to a Notice of Violation
- end should include:
(1) adnission or denial of the vio16ticn, (2) the reasons for the violation if admitted. (3) the corrective-steps that htye been taken and the results achieved, (4) the corrective steps which will be taken to avoid further violations, and (5) the date when full compliance will be achieved.
If an edequate 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 other action as may be proper should not be taken.
Consideration inay be givtn to extending the response time for good cause shown.
Under the authority of Section 182 of the Act. 42 U.S.C. 2232, this response shall be submitted under oath or affirmetion.
The response to the Director. Of fict of Enfercement, noted above should be accrt-ssed to:
Director Office of Enforcement, U.S. Nuclear Regulatory Consnis.
sion ATIN:
Docun+nt Control Desk, Washington, DC 20555, with a copy to the Regional Administrator, Region !! and a copy to the NRC Resident inspector, North Anna.
FOR THE NUCLEAR REGULATORY COMMISSION Ott inal Signed By
. L. Milhun Stewart D. Ebneter Regional Administrator Dated Atlanta, Georgia this 3 day of March 1990 l
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