ML20127D831
| ML20127D831 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 01/11/1993 |
| From: | Hodges M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Opeka J NORTHEAST NUCLEAR ENERGY CO. |
| Shared Package | |
| ML20127D837 | List: |
| References | |
| EA-92-146, NUDOCS 9301190060 | |
| Download: ML20127D831 (3) | |
See also: IR 05000336/1992022
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JAN 11 1933
Docket No. 50-336
License No. DPR-65
EA 92-146
Mr. John F. Opeka
Executive Vice President - Nuclear
Northeast Nuclear Energy Company
P. O. Box 270
Hartford, Connecticut 06141-0-270
Dear Mr. Opeka:
SUBJECT: NRC INSPECTION REPORT NO. 50-336/92-22 MILLSTONE UNIT 2
This refers to the safety inspection conducted by Mr. Ram .Bhatia and others of this office on
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July 6 through July 24,1992 and subsequent re-inspections on September 9-11 and
November 9-17,1992. These inspections focused on circumstances surrounding the
July 6,1992, partial loss of normal power and subsequent spent fuel pool draindown event
and existing design questions for your Millstone Unit 2 facility in Waterford, Connecticut.
At the conclusion of the inspection, the findings were discussed with Mr. M. Wilson,
Nuclear Licensing Supervisor, and those members of your staff identified in the enclosed
report. In addition, a telephone exit was conducted on January 6,1993, by Mr. J. Beall and
others of this office with Mr. J, Keenan and other members of your staff.
This inspection was directed toward areas important to public health and safety. Within
these areas, the inspection consisted of selective examination of procedures, plant design
change records, design documentation,125 Vac and de distribution systems, relevant
separation and fire hazard analyses, as-installed equipment, interviews with personnel, and
observations by the inspectors.
Based upon the results of this inspection, two apparent violations were identiGed. The first
violation is as set forth in the Notice of Violation, enclosed herewith as Appendix A. Also,
several design concerns were identified by your staff and confirmed by the. inspectors.
Certain safety-related system functions would not have worked as designed, assuming a
single failure of a de bus. To help the NRC better understand the generic implications of the
design flaws, we held a meeting in NRC Headquarters on October 21,1992. We found the
meeting helpful. Your staff and contractors have continued to look for other design flaws of
your engineered safeguards actuation system. We understand that you developed and took
appropriate corrective actions for all the identified problems prior to unit restart.
9301190060 930111
FDR
ADOCK 05000336
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JAN 11 in)
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Mr. John F. Opeka
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The second item was an apparent violation that is being (onsidered for escalated enforcement
action in accordance with the " General Statement of Policy and Procedure for NRC
linforcement Actions" (linforcement Policy),10 CFR Part 2 Appendix C (1992). The
apparent violation oncerns the possible failure to promptly take ..dion to correct single
failure design discrepancies ideitified by your staff. Accedingly, no Notice of Violation is
presently being issued for this inspection finding. In addition, please be advised that the
number and characterization of apparent violations dekribed in the er. closed inspection report
may change after further NRC review.
An enforcement conference to discuss th'.s apparent violation will be scheduled for the late
January or early February. The purloses ol this conference are to discuss the apparent
violation, its cause and safety significance; to provide you tbc opportunity to point out any
errots in our inspection report; to provide an opportunity for you to present your proposed
corrective action; and to discuss any other information that will help us determine the
appropriate enforcement action in accordance with the linforcement Policy. You will be
advised by separate correspondence of the rescits of our deliberations on this matter. No
response regardint 'he apparent violation is required at this time.
In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter and
its enclosuu will be placed in '.ne NRC Pablic Document Room.
The reS>onses direewd by this letter and the enclosed Notice are not subject to the clearance
proccdures of the Office of Management and lludget as required by the Paperwork Reduction
Act of 1980, Pub. L. No. 96.511.
We appreciate your cooperation.
. Sincerely,
_
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O dn:1 cimma ng
I.'.3rvm W. Ucqns
Marvin W. Hodges, Director
Division of Reactor Safety
linclosure:
1. Appendix A, Notice of Violation
2. NRC Ins;ection Report 50-336/92-22
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JAft 11 1993
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Mr. John F. Opeka
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cc w/ encl:
W. D. Romberg, Vice President - Nuclear, Operations Services
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S. E. Scace, Vice President - Milhtone Nuclear Power Station
J. S. Keenan, Nuclear Unit Director
R. M. Kacich, Director, Nuclear Licensing
D. O. Nordquist, Director of Quality Services
.
Gerald Gar 5cid, Esauire
Nicholas Reynolds, Esquire
K. Abraham, PAO (2)
Public Document Room (PDR)
Local Public Document Room (LPDR)
Nuclear Safety information Center (NSIC)
NRC Resident inspector
State of Connecticut SLO Designee
bec w/ encl:
Region 1 Docket Room (with concurrences)
DRS/EB SALP Coordinator
M. Ilodges, DRS
W. Lanning, DRS
R. Capra, NRR
R.111ough, DRP
L. Doerflein, DRP
P. Swetland, SRI, Millstone
W. Raymond, SRI, Haddam Neck
V. McKee, OEDO
R. Barkley, DRP
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