ML20056C157
| ML20056C157 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 03/23/1993 |
| From: | Cowgill C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Sylvia B NIAGARA MOHAWK POWER CORP. |
| Shared Package | |
| ML20056C158 | List: |
| References | |
| NUDOCS 9303300163 | |
| Download: ML20056C157 (3) | |
See also: IR 05000220/1993001
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Docket Nos. 50-220
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50-410
Mr. B. Ralph Sylvia
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Executive Vice President - Nuclear
Niagara Mohawk Power Corporation
301 Plainfield Road
Syracuse, New York 13212
Dear Mr. Sylvia:
Subject:
NRC Region I Combined Inspection Report No. 50-220/93-01 and
50-410/93-01
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This refers to the results of the routine resident safety inspection conducted by Messrs.
W. Schmidt, R. Plasse, and others from January 24, through February 27,1993, at Nine Mile
Point Units I and 2, Scriba, New York. Mr. Schmidt discussed the inspection findings with
members of your staff at the exit meeting conducted on March 9,1993.
The inspectors directed their activities toward areas important to public health and safety. The
enclosed NRC Region I Combined Inspection Report describes the areas examined during the
inspection. Within these areas, the inspection consisted of observation of activities in progress,
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interviews with personnel, and selective examinations of procedures and representative records.
Also included is a review of Unit I primary containment isolation valve concerns raised in an
October 27,1992,10 CFR 2.206 Petition.
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Your staff operated both units safely. This included excellent response by control room
operators to the January 26 reactor scram. However, problems with personnel attention-to-detail
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and understanding the impact of actions on the plants during maintenance and surveillance
activities continue as barriers to sustained good performance. Our review of the reactor scram
noted several weaknesses in the conduct of the reactor protection system surveillance test that
directly caused the unit trip. The failure to follow the procedure is a violation; however, based
on the low safety significance and our review of your extensive and aggressive corrective
actions, no response to this violation is required.
Additionally, your staff did not identify an improperly installed Unit 2 Agastat relay until 29
days after the error was made. This was an example of improper work control, in that your
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staff did not document the plant impact or post-maintenance test r.spects of the work. This was
compounded by inspector identification that operators did not formally enter a technical
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specification limiting condition for operation when one train of the low pressure coolant injection
systems was made inoperable during the relay replacement. This issue was unresolved, pending
further review to determine safety significance.
9303300163 930323
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ADOCK 05000230
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Mr. Ralph B. Sylvia
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Your cooperation with us is appreciated.
Sincerely,
Curtis J. Cowgill, Chief
Projects Branch No.1
Division of Reactor Projects
Enclosures:
1.
Appendix A, Notice of Violation
2.
NRC Region I Combined Inspection Report Nos. 50-220/93-01 and 50-410/93-01
cc w! encl:
N. Carns, Vice President - Nuclear Generation
C. Terry, Vice President - Nuclear Engineering
J. Perry, Vice President - Quality Assurance
K. Dahlberg, Unit 1 Plant Manager
M. McCormick, Unit 2 Plant Manager
D. Greene, Manager, Licensing
J. Warden, New York Consumer Protection Branch
G. Wilson, Senior Attorney
M. Wetterhahn, Winston and StrawTi
Director, Energy and Water Division, State of New York
C. Donaldson, Esquire, Assistant Attorney General, New York Department of 12w
K. Abraham, PAO-RI (2)
Public Document Room (PDR)
Imal Public Document Room (LPDR)
Nuclear Safety Information Center (NSIC)
NRC Resident Inspector
State of New York, SLO Designee
OFFICIAL RECORD COPY
a:IR9301
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Mr. Ralph B. Sylvia
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bec w/encis:
Region I Docket Room (with concurrences)
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C. Cowgill, DRP
J. Yerokun, DRP
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L. Nicholson, DRP
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S. Greenlee, DRP
V. McCree, OEDO
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J. Lieberman, OE
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R. Capra, NRR
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D. Brinkman, NRR
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J. Menning, NRR
- D. Holody, EO
DRS/EB SALP Coordinator
DRSS SALP Coordinator
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bec w/ Letter, Notice of Violation, Report Cover Sheet and Executive Summary Only:
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W. Hehl, DRP
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J. Wiggins, DRP
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W. Hodges, DRS
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W. Lanning, DRS
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L. Bettenhausen, DRS
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J. Durr, DRS
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R. Cooper, DRSS
S. Shankman, DRSS
J. Joyner, DRSS
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OFFICIAL RECORD COPY
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