ML19276G614
| ML19276G614 | |
| Person / Time | |
|---|---|
| Site: | La Crosse File:Dairyland Power Cooperative icon.png |
| Issue date: | 06/07/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Linder F DAIRYLAND POWER COOPERATIVE |
| References | |
| NUDOCS 7907240254 | |
| Download: ML19276G614 (1) | |
Text
- "' G g UNITED STATES f
NUCLEAR REGULATORY COMMISSION
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f 799 ROOSEVELT RO Ao "e*
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JUN 7 1979 Docket No. 50-409 Dairyland Power Cooperative ATTN:
Mr. F. W. Linder General Manager 2615 East Avenue - South La Crosse, WI 54601 Gentlemen:
This Information Notice is provided as an early notification of a possibly significant matter.
It is expected that recipients will review the infor-mation for possible applicability to their facilities. No specific action or response is requested at this time.
If further h7C evaluations so indi-cate, an IE Circular, Bulletin, or NRR Generic Letter will be issued to recommend or request specific licensee actions.
If you have questions regarding the matter, please contact the Director of the appropriate h7C Regional Office.
Sincerely, w
/
James G. Keppler /
Director
Enclosure:
IE Information Notice No. 79-15 cc w/ encl:
Mr. R. E. Shimshak, Plant Superintendent Central Files Director, NRR/DPM Director, NRR/ DOR PDR Local PDR NSIC TIC Anthony Roisman, Esq.,
Attorney 7 007240,1St/
U.S. NUCLEAR REGULATORY COMMISSIOS OFFICE 0{ INSPECTION AND ENFORCEMENT REGION III June 7, 1979 -
IE Information Notice No. 79-15 DEFICIENT PROCEDURES Su= mary On June 2, 1979, at Arkansas Nuclear One - Unit 1, while observing conditions in the control room, an NRC inspector discovered an operational deficiency that could have resulted in the emergency feedwater system remaining isolated during subsequent power operation.
Description of Circumstances On June 2 while Arkansas Nuclear One - Unit I was preparing for startup, an NRC inspector in the control roo= found that during a surveillance test of the main feedwater check valves, the controls of the emergency feed-water system were positiored so that the syste= could not automatically respond if needed. The NaC inspector found that the test procedure being used by the licensed operators did not include, as it should have, instruc-tions either to bypass the emergency feedwater system or to return it to normal. The plant operators, without approved procedures covering this aspect of the test, bypassed the controls that would have started the feedwater syste= automatically. Lacking a procedural requirement to re-turn the system to normal, there was no assurance that emergency feedwater would be provided automatically if needed.
Following che Three Mile Island accident, the NRC required that operators be trained to initiate pro =ptly the emergency feedwater system manually if it does not come on automatically. Thus, while no immediate safety hazard existed at the Arkansas Unit 1 plant because of the improper action, the NRC staff is concerned about the potential safety hazard of leaving the emergency feedwater system in the bypassed condition, about the possibility that other procedures at the Arkansas plant may be deficient and about the fact that the operators deviated from procedures in performing the surveillance test.
Arkansas Power and Light Company has returned the h The June 2, 1979, NRC Order confi until the Commission staff is sat trolling the development of opera DUPLICATE DOCUMENT procedures, and until there is as from those procedures.
Entire document previously entered into system under:
ANO No. of pages:
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