ML20202G210
| ML20202G210 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 01/29/1999 |
| From: | Burgess B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Wadley M NORTHERN STATES POWER CO. |
| Shared Package | |
| ML20202G214 | List: |
| References | |
| 50-282-98-23, 50-306-98-23, NUDOCS 9902050053 | |
| Download: ML20202G210 (2) | |
See also: IR 05000282/1998023
Text
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January 29, 1999
.
Mr. M. Wadley :
Pres l dent, Nuclear Generation -
,
Northem States Power Company
414 Nicollet Mall
Minneapolis, MN 55401
' SUBJECT:
PRAIRIE ISLAND INSPECTION REPORT 50-282/98023(DRP);
50-'306/98023(DRP)
- Dear Mr. Wadley:
On January 14,1999, the NRC completed an inspection at your Prairie Island Nuclear
Generating Plant. The enclosed report presents the resists of that inspection.
This inspection period was characterized by caveral unexpected operational events, caused by
equipment failures, personnel errors, and procedure problems. These events included a
reactor coolant system leak, a transformer explosion and reactor trip, two periods of reliance on
natural circulation cooling, a loss of the operating residual heat removal pump, and an extended
period of reliance on steam generator power-operated relief valves for maintaining reactor
coolant system temperature. Although operators were required to rapidly evaluate and respond
to the events, in all cases, the performance of control room operators was observed to be
professional, calm, and correct. The plant was kept in a stable, safe condition during each of -
the events. Operators also performed two reactor startups without problems.
in accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter and its
enclosure will be placed in the NRC Public Document Room.
Sincerely,
Original signed by
Bruce Burgess, Chief
Reactor Projects Branch 7
Docket Nos.: 50-282,'50-306-
- License Nos.: DPR-42, DPR-60
Enclosure:
Inspection Report 50-282/98023(DRP);
50-306/98023(DRP)
See Attached Distribution
DOCUMENT NAME: G:\\PRAl\\PRA98023.DRP
To receive a copy of this document, Indicate in the box "C" = Copy w/o attach /enci "E" =
Copy w/ attach /enci "N" = No copy
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OFFICE
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DATE
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OFFICIAL RECORD COPY
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9902050053 990129
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ADOCK 05000282
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.M. Wadley
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cc w/ encl:
Plant Manager, Prairie Island
State Liaison Officer, State of Minnesota
State Liaison Officer, State of Wisconsin
Tribal Council, Prairie Island Dakota Community
Distribution:
CAC (E-Mail)
RPC (E-Mail)
Project Mgr., NRR w/enci
J. Caldwell, Rill w/enci
C. Pederson, Rlli w/enci
' B. Clayton, Rill w/ enc!
SRI Prairie Island w/ encl
DRP w/ encl
TSS w/ enc!
DRS (2) w/ encl
Rlli PRR w/enci
PUBLIC IE-01 w/ enc!
Docket File w/enci
GREENS
LEO (E-Mail)
DOCDESK (E-Mail)
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