05000266/LER-1999-001, Forwards LER 99-001-01,describing Discovery That Common Min Recirculation Flow Line Return to RWST for Safety Injection & Containment Spray Pumps Was Partially Frozen & Would Not Pass Flow.New Commitments Indicated in Italics i

Forwards LER 99-001-01,describing Discovery That Common Min Recirculation Flow Line Return to RWST for Safety Injection & Containment Spray Pumps Was Partially Frozen & Would Not Pass Flow.New Commitments Indicated in Italics in Rept

ML20205L802
Person / Time
Site:	Point Beach
Issue date:	04/08/1999
From:	Kaminskas V WISCONSIN ELECTRIC POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20205L805	List: 05000266/LER-1999-001, Forwards LER 99-001-01,describing Discovery That Common Min Recirculation Flow Line Return to RWST for Safety Injection & Containment Spray Pumps Was Partially Frozen & Would Not Pass Flow.New Commitments Indicated in Italics i
References
NPL-99-0195, NPL-99-195, NUDOCS 9904140295
Download: ML20205L802 (2)

LER-2099-001, Forwards LER 99-001-01,describing Discovery That Common Min Recirculation Flow Line Return to RWST for Safety Injection & Containment Spray Pumps Was Partially Frozen & Would Not Pass Flow.New Commitments Indicated in Italics in Rept

Event date:
Report date:
2662099001R00 - NRC Website

text

. _.

)

Wisconsin I Electnc  !

POWER COMPANY Point Beach Nuclear Plant (920) 755-2321 6610 Nuclear Rd., Two Rivers. WI 5d241 i

NPL 99-0195 April 8,1999 10 CFR 50.73 Document Control Desk

{

U.S. NUCLEAR REGULATORY COMMISSION '

Mail Station PI-137 Washington, D.C. 20555 Ladies / Gentlemen:

DOCKET NO. 50-266 LICENSEE EVENT REPORT 1999-001-01 S AFETY INJECTION RECIRCULATION LINE TO REFUELING WATER STORAGE TANK FROZEN POINT BEACH NUCLEAR PLANT. UNIT 1 l

Enclosed is Licensee Event Report (LER) 1999-001-01 for the Point Beach Nuclear Plant, Unit 1. This report is a supplement to LER 1999-001-00 which was submitted to the NRC on February 4,1999. This event report is provided in accordance with 10 CFR 50.73(a)(2)(ii)(B), /

as, "Any event or condition that resulted in the nuclear plant being in a condition that was outside /

f the design basis of the plant." This report describes the discovery that the common minimum recirculation flow line return to the refueling water storage tank (RWST) for the safety injection -

and containment spray pumps was partially frozen and would not pass flow as a result of a failure of the freeze protection heat tracing for this piping.

p 77 This supplement provides a list of additional corrective actions which were identified during a comp :hensive root cause evaluation which was completed subsequent to the date of the original LER. This supplement also includes a more thorough assessment of the safety significance of the event. Changes and additions in this supplement have been identified with margin bars.

i New commitments within this report are indicated in italics. i 9904140295 990408 ADOCK05000266j PDR S PDR ,

l A suksafinn'of Hiews.skiEneas Ow;watkin i

r:

N'PM 99-0195 April 7,1999 Page 2 Please contact me if you require additional information.

Sincerely,

) -

t

[ky w Vito A. Kaminskas Manager Regulatory Services and Licensing Point Beach Nuclear Plant CWK/tja Enclosure cc: NRC Resident Inspector NRC Regional Administrator NRC Project Manager PSCW INPO Support Services 4

._