ML20059N155
| ML20059N155 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 10/01/1990 |
| From: | Schuster T COMMONWEALTH EDISON CO. |
| To: | Davis A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| NUDOCS 9010100172 | |
| Download: ML20059N155 (2) | |
Text
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Commonwetith Edisom
'A*"*1 e
11400 Opus Pl;co
- Downcra Grove, Illinois 60515
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'l October 1,-
1990 h
Mr. A..Bert-Davis-Regional' Administrator U.S. Nuclear Regulatory Commission Region III 799 Roosevelt Rd.
s
' Glen Ellyn, II-60137-
Subject:
Byron Station Units I and 2 Inspection Report Hos.
50-454/89016 and 50-455/89018 NRC Docket Nos. 50-454 and'50-455
Reference:
a) April 11, 1990' Letter from.TK-Schuster
~
to A. Bert/ Davis
Dear Mr. Davis:
The letter of reference (a) stated a corporate review of:the generic applicability of 10 CFR 50.59 safety evaluations was: Underway.
AlsoPthat as a result of this review, the applicability of safety. evaluations priorito manipulation of Emergency Core Cooling System (ECCS) valves to abnormal positions would be resolved in response to.a Notice of Violation.
Specifically, the conditions of concern would be when the valves haveLnot been repositioned as.a result of an OOS or an approved procedure.
The-letter also stated the final content and implementation schedule for the NOD, as-appilcable to abnormal ECCS valve positions,.would be provided by the date of.
this letter.
The following describes our actions relative to these commitments.
A Commonwealth Edison'(CECO) corporate" task-force completed a draft document entitled "10 CFR 50.59 Implementation Task Force Report";on February 8, 1990.
The draft report was issued to each of the CECO Nuclear Stations for review and comment.
The comments received.were incorporated into the draft and the draft was then reformatted into a Corporate Nuclear Operations Olrective (N00) which is applicable to all. CECO Nuclear Stations.
Our commitment to issue thi N00 by October 1, 1990 is satisfied-by issuanci of Nuclear Operations Directi'e N00-TS.11 "10 CFR 50.59 Safety Evaluation Process".
The implementation schedule for procedures, reporting and records required by the NOD is 90 days from issuance of the N00.
The program requirements for preparers Tnd reviewers of 50.59 evaluations must be' met within 1 year.
003D 9010100172 901001
.CEOi PDR ADOCK 05000454 O
PDC.
IM-y.
v Mr. A. Bert Davis October 1, 1990 l
Tie' Ability to screen and/or evaluate abnormal ECCS valve positions via'the 50 59 evaluation process described in the NOD will be in place by January 1, ?991.
The MOD contains a screening process, an improved 50.59 evaluation atd specifically addresses applicability of abnormal valve lineups in Figure 3 aid Exhibit "A".
The preceeding actions fulfill all remaining i.
commitments rflative to the violation response of Inspection Report 454/89016; 455/89018.
Please direct.'any questions regarding this matter to this office.
Respectfully, 5M$ $
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T.K. Schuster Nuclear Licensing Administrator cc:- Document: Control-* Desk o.
Resident Inspector-Byron T. Boyce-FM, NRR 1
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