ML19246C376
| ML19246C376 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 06/07/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Jeffery Grant TOLEDO EDISON CO. |
| References | |
| NUDOCS 7907240441 | |
| Download: ML19246C376 (1) | |
Text
PDR e *8cv UNITED STATES s
NUCLEAR REGULATORY COMMISSION REGloN lli 799 ROOSEVELT RO AD e
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GLEN E LLY N. ILLINOt1 63137 4.,...../
w JUN 7 1979 Docket No. 50-346 Toledo Edison Company ATTN:
Mr. James S. Grant f
Vice President - Energy Supply Edison Plaza
.00 Madison Avenue Toledo, OH 43652 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 vill be issued to recommend or request specific '.icensee actions.
If you have questions regarding the matter, please contact the Director of the appropriate h7C Regional Office.
Sincerely, je-Q. S'/
James G. Keppler/'
Director Ecciosure:
IE Information Notice No. 79-15 cc w/ enc 1:
Mr. T. Murray, Station Superintendent Central Files Director, NRR/DPM Director, hTd/ DOR PER Local PDR NSIC TIC Harold W. Kohn, Power Siting Con: mission Helen W. Evans, State of Ohio C
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U.S. NUCLEAR RECULATORY C05:ISSION OFFICE OF ISSPECTION A';D ENFORCEMENT REGION III June 7, 1979 -
IE Infor=ation Notice Nc. 79-15 DEFICIEm PROCEDURES
!u==ary On June 2, 1979, at Arkansas Nuclear One - Unit 1, while observing conditions in the control roo=, an NRC inspector discovered an operational deficiency that could have resulted in the e=ergescy feedwater syste: re=aining isolated during subsequent power opcration.
Description of Circu= stances On June 2 while Arkansas Nuch ar One - Unit I was preparing for startup, an NRC inspector in the control re= found that during a surveillance test of the =ain feedwater check valves, the controls of the energency f eed-water syste= were positioned se that the syste= could act auto =atically respond 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 feedwater syste= or to return it te normal. The plant operators, without approved procedures covering this aspect of the test, bypassed the controls that wc.ld have started the feedvater syste= automatically. Lacking a procedural require =ent to re-turn the syste= to nor=al, there was no assurance that e=ergency feedwater would be provided auto =atically if needed.
Following the Three Mile Island accident, the NRC required that operators be trained to initiate pro =ptly the e=ergency feedwater syste= =anually if it does not co=e on auto =atically. 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 potential safety ha:ard of leaving the e=ergency feedwater syste= 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 fro = procedures in perfor=ing the surveillance test.
Arkansas Pever and Light Cc=peny has returned the plant to cold shutdown.
The June 2, 1979, NRC Order confirmed the requirement for a cold shutdown until the Co==ission staff is satisfi[ " ~ ' " * + " W A ^ " --
trolling the develop =ent of operating procedures, and until there is assura. DUPLICATE DOCUMENT U si [',
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fro = those procedures.
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