ML19353A908
| ML19353A908 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png |
| Issue date: | 11/16/1989 |
| From: | Kovach T COMMONWEALTH EDISON CO. |
| To: | Davis A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| NUDOCS 8912080073 | |
| Download: ML19353A908 (2) | |
Text
,
commonwnith Edison W
- A.
Zion Generating Stati;n 101 Shiloh Blvd.
Zion, Illinois 60099 Telephone 312/746 2084 i
November 16, 1989 i
Hr. A. Bert Davis 1
I Regional Administrator; U.S. Nuclear Regulatory Commission i
799 Roosevelt Road.
Region III i
Glen Ellyn, IL 60137
Subject:
Zion Nuclear Power Station, Unit 1 License No. DPR-39 Response to Notice of Violation
)
Inspection Report No. 50-295/89033 MRC_. Docket No. 50-295 1
Reference:
October 17, 1989 letter from H. D. Shafer to Cordell Reed
Dear Hr. Davis:
The letter referenced above provided the results of a special safety inspection conducted by Hs. D. R. Calhoun of your office during September 25 through October 5, 1989 of activities at Zion Station.
During the course of l
this inspection, certain activities appeared to be in noncompliance with NRC l
requirements.
The response to the violation is provided in the Attachment to t
i.
.this letter.
Please direct any questions that you may have regarding this matter to
+
this office.
L L
Very truly yours, M
,, /
(+v T. J. Kovach l.
l_
Nuclear Licensing Manager L
TJK/TS/jlc cc: Chandu Patel - NRR L
Senior Resident Inspector - Zion
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h 17720 HOV211989 8912080073 891116 gDR.ADOCM 05000 5
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ATTACHNENT Violation:
I Technical Specification 3.7.2.c requires that with the TDAFH pumps inoperable, two operable flow paths shall be established from the MDAFH pumps to all steam
- veten within eight hours.
Contrary to the above, Unit 1 opet6ted at pnwer in the run mode from 6:40 P.M.
on July 23, 1989, to 11:48 A.M. on July 24, 1989, which exceeds the time allotted by Technical Specification by nine hours and eight minutes, without establishing two operable flow paths from the MOAFH pumps to the steam generators.
This is a Severity Level IV violation (Supplement I).
295/89033-01 i
l-Corrective Action Taken and Results Achieved:
I The flow rates to each of the four steam generators from the IB Auxiliary Feed Water pump (AFH) were immediately adjusted to provide the required flow of 105 l
GPH.
The 1C AFH pump was also run to verify the availability of both the AFH pump and the second flow path.
Corf.e_ctive Action To Be Taken To Avoid Further Violat10D:
Station procedure 501-10 " Auxiliary Feed Hater" is used as guidance to direct valve manipulation to split the AFH header. The applicable section of this procedure has been revised to include the verification of the flow rates at 105 GPM as provided by the 1B AFH pump after AFH header alignment.
Additionally, (Periodic Test) PT-7, " Auxiliary Feed Hater System Checks and Tests" has been revised to incorporate a similar requirement, l
Date When Full Comoliance Hill Be Achieved:
l Zion Station is in full compliance at this time.
l l
l 1
17720