ML20059F449
| ML20059F449 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 01/05/1994 |
| From: | Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Antony D NORTHERN STATES POWER CO. |
| Shared Package | |
| ML20059F451 | List: |
| References | |
| NUDOCS 9401140032 | |
| Download: ML20059F449 (5) | |
See also: IR 05000306/1993021
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UNITED STATES
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NUCLEAR REGULATORY COMMISSION
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REGION 111
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801 WARRENVILLE BOAD
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LISLE. ILLINOIS 60532-4351
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JE O t 654
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Docket No. 50-306
License No. DPR-60
Northern States Power Company
ATTN: Mr. D. D. Antony
Vice President, Nuclear
Generation
,
414 Nicollet Mall
Minneapolis, MN 55401
Dear Mr. Antony:
SUBJECT: NRC INSPECTION REPORT 50-306/93021
Dear Mr. Antony:
I
This refers to the special safety inspection conducted by Messrs. M. L. Dapas
and R. L. Bywater of this office on December 6 through 22, 1993. The
inspection included a review of activities at your Prairie Island Nuclear
Generating Plant related to work planning, configuration management, and
control of outage activities. The inspection focused on four events that
,
occurred over a two week period from November 16 to December 1, 1993, during
,
your Unit 2 refueling outage. Specifically, events involving the
'
overpressurization of safety injection system piping, core alterations while
the required condition of refueling integrity did not exist, the lockout of a
4160 Volt, non-safeguards bus, and the inoperability of a Technical
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Specification-related, fire protection system pump, were reviewed.
The
findings of our inspection were discussed with Mr. M. D. Wadley and other
members of your staff on December 22, 1993.
Areas examined during the inspection are identified in the report. Within
these areas, the inspection consisted of selective examinations of procedures
and representative records, interviews with personnel, and observation of
activities in progress.
,
Based on the results of this inspection, certain of your activities appeared
,
to be in violation of NRC requirements, as specified in the enclosed Notice of
Violation (Notice). The identified violations are of particular concern
because, collectively, they reflect inadequate planning and control of outage
activities. Several concerns were identified during the review of the four
I
events referenced above. These included the failure of operations shift
management to maintain an awareness of overall plant conditions before
I
performing critical evolutions, weaknesses in communications between work
groups, the lack of a questioning attitude by operations personnel, poor
9401140032 940105
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attention to detail, inadequate procedural review, and in one case, a
non-conservative operating decision. Staff training on the work planning and
control process, and operator training on the equipment isolation and
verification process, appeared weak.
The violations described in the enclosed Notice were considered for escalated
enforcement. We evaluated how they were related and whether, when considered
collectively, they represented a breakdown in the control of licensed
activities reflecting a potentially significant lack of attention toward
licensed responsibilities. While we determined that the violations did not
warrant escalated enforcement, the numerous concerns that were identified
'
during our inspection are viewed as potential precursors to more significant
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events.
Prompt management attention is required to adequately address each of
these concerns.
You are required to respond to this letter and should follow the instructions
specified in the enclosed Notice when preparing your response.
In your
response, you should document the actions taken and any additional actions you
plan to prevent recurrence.
Be specific in addressing the several concerns
identified above.
After reviewing your response to this Notice, including
your proposed corrective actions and the results of future inspections, the
NRC will determine whether further NRC enforcement action is necessary to
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ensure compliance with NRC regulatory requirements.
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In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of
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this letter and its enclosures will be placed in the NRC Public Document Room.
The responses directed by this letter and the enclosed Notice are not subject
i
to the clearance procedures of the Office of Management and Budget as required
by the Paperwork Reduction Act of 1980, Pub. L. No.96-511.
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We will gladly discuss any questions you have concerning this inspection.
Sincer ly,
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John B. Martin
Regional Administrator
Enclosures: Notice of Violation
1
Inspection Report
No. 50-306/93021(DRP)
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attention to detail, inadequate procedural review, and in one case, a
non-conservative operating decision. Staff training on the work planning and
control process, and operator training on the equipment isolation and
verification process, appeared weak.
.
The violations described in the enclosed Notice were considered for escalated
enforcement.
We evaluated how they were related and whether, when considered
collectively, they represented a breakdown in the control of licensed
.,
activities reflecting a potentially significant lack of attention toward
licensed responsibilities. While we determined that the violations did not
warrant escalated enforcement, the numerous concerns that were identified
during our inspection are viewed as potential precursors to more significant
events.
Prompt management attention is required to adequately address each of
these concerns.
You are required to respond to this letter and should follow the instructions
specified in the enclosed Notice when preparing your response.
In your
response, you should document the actions taken and any additional actions you
plan to prevent recurrence.
B0 specific in addressing the several concerns
identified above. After reviewing your response'to this Notice, including
your proposed corrective actions and the results of future inspections, the-
NRC will determine whether further NRC enforcement action is necessary to
ensure compliance with NRC regulatory requirements.
In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of
i
this letter and its enclosures will be placed in the NRC Public Document Room.
The responses directed by this letter and the enclosed Notice are not subject
to the clearance procedures of the Office of Management and Budget as required
by the Paperwork Reduction Act of 1980, Pub. L. No.96-511.
We will gladly discuss any questions you have concerning this inspection.
Sincerely,
,
htOpYWA
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John B. Martin
Regional Administrator
Enclosures:
Inspection Report
No. 50-306/93021(DRP)
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Distribution:
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E. L. Watzl, Site Manager,
Prairie Island Site
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M. Wadley, Plant Manager
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Resident Inspector, RIII Prairie
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Resident Inspector, RIII Monticello
John W. Ferman, Ph.D.,
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Nuclear Engineer, MPCA
State Liaison Officer, State
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State Liaison Officer, State-
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E. L. Watzl, Site Manager,
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Prairie Island Site
M. Wadley, Plant Manager
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Resident Inspector, RIII Prairie
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Resident Inspector, RIII Monticello
John W. Ferman, Ph.D.,
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Nuclear Engineer, MPCA
State Liaison Officer, State
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of Minnesota
State liaison Officer, State
of Wisconsin
Prairie Island, LPM, NRR
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