ML19225B208
| ML19225B208 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 06/07/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Hines E DETROIT EDISON CO. |
| References | |
| NUDOCS 7907240287 | |
| Download: ML19225B208 (1) | |
Text
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GLEN E LLVN, ILLINot5 60137 JUN 7 1979 Docket No. 50-341 The Detroit Edison Company ATTN:
Mr. Edward Hines, Assistant Vice President and Manager Quality Assurance 2000 Second Avenue Detroit, MI 48226 Gentlemen:
This Infonnation Notice is provided as an early notification of a possibly significant matter.
It is expectsi 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 hTC evaluations so indi-cate, an IE Circular, Bulletin, or NRR Generic Letter will be issued to recenmeno or request specific licensee actions.
If you have questions regarJ ng the matter, please contact the Director of the appropriate NRC Regional Office.
Sincerely,
./
James G. Keppler Director Enclosure.
IE Information Notice No. 79-15 cc w/ encl:
Central Files Director, NRR/DDM Director, NRR/ DOR PDR Local FDR NSIC TIC Ronald Callen, Michigan Public Service Commission Eugene B. Thomas, Jr.,
415 220 Atto rney 7907240Jf7
U.S. hTCLEAR REGULATCEY CC"'!ISSICS OFFICE OF INSFECTICS ASD EMCRCDIENT REL105 Ill June 7, 1979 IE Infor ation Notice No. 79-15 DEFICIEC PROCEDURES Su==ary On June 2, 1979, at Arkansas Nuclear One - Unit 1, while observing conditions in the control rcc=, an NRC inspector disecvered an operational deficiency that could have resulted in the e=ergency feedwater syste= re=aining isclated during rubsequent power operation.
Descripticn of Circu= stances On June 2 while Arkansas Nuclear One - Unit I was preparing for startup, an NRC inspecter in the control roo: found that during a surveillance te.ct of the =ain feedwater check valves, the controls of the e=ergency fee water syste= were positioned so that the syste= could not auto =atically respend if needed. The NRC inspector found that the test procedure being used by the licensed operators did not include, as it should have, instruc-tiens either to bypass the e=ergency feedvater syste= or to return it to normal. The plant op laters, without approved procedures covering this aspect of the test, bypassed the controls that would have started the feedwater syste= autecatically. Lacking a procedural require =ent to re-turn the syste= to nor=al, there was no assurance that e=ergency feedwater would be provided auth
~ ; ally if needed.
Following the Three MJ ; Liand accident, the NRC required that operators be trained to initiate prc=ptly the e=ergency feedwater syste: =anually if it does not ec=e on automatically. Thus, while no i==ediate safety hazard existed at the Arkansas Unit 1 plant because of the i= proper action, the NRC staff is concerned about the pctential safety hazard of leaving the e=ergency feedwater syste= in the bypassed ccndition, about the pessibility that other procedures at the Arkansas plant may be deficient and about the fact that the operators deviated frc= precedures in perferring the surveillance test.
Arkansas Power and Light Cc=pany has returned the plant to cold shutdev..
The June 2, 1979, NRC Order confir=ed the require =ent for a cold shutdown until the Cc==ission staff 7
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Entire document previously entered into system under:
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05 221 ANO 790 7020/S l y
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