ML20155H014
| ML20155H014 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 04/14/1988 |
| From: | Bliss H COMMONWEALTH EDISON CO. |
| To: | Davis A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20155H001 | List: |
| References | |
| 4493K, NUDOCS 8806200169 | |
| Download: ML20155H014 (2) | |
Text
..
C'N Commonwealth Edison
[
) One Fd N:Sonal Plan Chicago, Ininois i
C 7 Address Reply to: Post Offc; Box 767
(,/ Chicago, IUinois 60690 0767 April 14, 1988 i
0 Commonwea Mr. A. Bert Davis Regional Administrator i
U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL.
60137
Subject:
Byron Station Units 1 and 2 NRC Inspection Report Nos. 50-454/88-004 and 50-455/88-005 NRC Docket Nos. 50-454 and 50-455
Reference:
(a) "05000455/LER-1988-001-08, :on 880212,feedwater Pump 2C Tripped Resulting in Loss of Inventory in Steam Generators & Reactor Trip on Low [[system" contains a listed "[" character as part of the property label and has therefore been classified as invalid. Level.Caused by Failure of Servovalve Which Allowed Governor Valve to Fail Open|March 8, 1988 letter]] from B.S. Mallett to Cordell Reed
Dear Mr. Davis:
Reference (a) provided the results of an inspection at Byron Station by Mr. Pirtle of your staff between January 28 and February 18, 1988. During this inspection, certain activities appeared to be in violation of NRC requirements. Attachment A of this letter contains commonwealth Edison's response to the violation enclosed with reference (a). On April 7, 1988, Commonwealth Edison was granted a one-week extension on the due date for the response to the Notice of Violation by Mr. J.R.
Creed of your staff.
We have concluded that the issue discussed in this violation should not be considered a failure to implement the Byron, Security plan.
In our view, the issue involves a question about the original design of the E-field system detection capability.
Therefore, we are requesting the NRC to reclassify this violation to an open item. We have proposed a change to the security plan to help resolve the issuc.
In addition, we would like to arrange a meeting with the Region III safeguards staff to discuss B-fiald system detection capability further.
Attachment B of this letter contains an executive briefing of an investigation of firewatch activities at Byron Station. This briefing material was requested by the NRC staff during a meeting on March 8, 1988.
Commonwealth Edis>n's investigation has confirmed that these firewatch tour deficiencies did not extend to the security guard force or any of its respective duties.
SECURITY MARKING DOES NOT APPLY WHEN THIS LETTER IS SEPARATE FROM THE ENCLOSURE APR 15 m3 8806200169 880610
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PDR ADOCK 05000454 o
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i Commonwealth Edison h!0N NO.10 The attachments to this letter contain safeguards information as defined in 10 CFR 73.21.
Accordingly, this informatio t must be protected from public disclosure. Please direct any questions regarding this matter to this office.
Very truly yours,
'H
(
Henry. Bliss Nuclear Licensing Manager
/klj Attachments cc: Byron Resident Inspector 4493K SECURITY MARKING DOES NOT APPLY \\7 HEN THIS LETTER IS SEPARATE FROM THE ENCLOSURE
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