ML19331B882
| ML19331B882 | |
| Person / Time | |
|---|---|
| Site: | La Crosse File:Dairyland Power Cooperative icon.png |
| Issue date: | 08/07/1980 |
| From: | Linder F DAIRYLAND POWER COOPERATIVE |
| To: | |
| References | |
| LAC-7074, NUDOCS 8008130474 | |
| Download: ML19331B882 (2) | |
Text
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'D DA/RYLAND h
COOPERA TNE p o DOX 817
- 2615 EAST AV SOUTH
- LA CROSSE. WISCONSIN S4601 (608) 788 4 000 August 7, 1980 t
In reply, please refer to LAC-7074 DOCKET NO. 50-409 Mr. James G. Keppler Regional Director U. S. Nuclear Regulatory Commission Directorate of Regulatory Operations Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137
SUBJECT:
'DAIRYLAND POWER COOPERATIVE LA CROSSE BOILING WATER REACTOR (LACBWR)
PROVISIONAL OPERATING LICENSE NO. DPR-45 REPORTABLE OCCURRENCE NO. 80-05
Reference:
(1)
LACBWR Technical Specifications, Section 3.9.2.a. (6) l (2)' LACBWR Technical Specifications, Section 2.4.2.5
Dear Mr. Keppler:
In accordance with Reference 1, this is to inform you of a personnel error which could have prevented the fulfillment of the functional requirements of a system used to cope with accidents analyzed in the Safeguards Report.
It was concluded on August 6, 1980, that the existence of a 1/2" angle type globe valve, found in the closed position on the Shut-down Condenser shell, created the potential for degradation of the containment vessel boundary.
The addition of the valve cannot be traced to an authorized design change.
The valve was replaced by a pipe cap on July 21, 1980.
The installation of the cap returned the system to its original design which had undergone numerous Containment Building leakage rate tests in the past.
The valve i
installation had also undergone satisfactory containment leakage rate tests in the past.
Leak tightness of the recent cap install-ation will be accomplished today.
Prompt notification of this event was made to Mr. Ken Ridgway of Region III, U.
S. Nuclear Regulatory Commission, at 1445 on August 6, 1980.
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Mr. James G. Keppler LAC-7074 Regional Director August 7, 1980 4
If there are any questions concerning this report, please contact us.
Very truly yours, DAIRYLAND POWER COOPERATIVE sJ w /G
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Frank Linder, General Manager FL:RES:af cc:
Director, Office of Management Information (3)
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and Program Control U. S. Nuclear Regulatory Commission Washington, D. C.
20555
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