ML19329B388
| ML19329B388 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 07/21/1975 |
| From: | Mazetis G Office of Nuclear Reactor Regulation |
| To: | Engle L Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8002050595 | |
| Download: ML19329B388 (1) | |
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L. Engle, Licensing Project Manager, LWR 2-3, RL TIIRU: Robert L. Baer, Section A Leader, Reactor Systens Branch, TR DAVIS-BESSE FSAR REVISIONS 13 AND 14
Reference:
Letter from Victor Stello, Jr. to Voss A. Moore, Jr.,
dated March 28, 1975 The above referenced letter states the following:
"We note that revisions have been nade to many figures since the FSAR was originally submitted. It is obviously quite time-consuming to search a PSID in an effort to locate an unknown change and difficult to be sure that all changes are found. It is also frustrating to find a change without understanding why the change has been made. An exanple of such a revision is FSAR Figure 6-17,
' Davis-Besse Nuclear Power Station Decay Heat Removal System and ECCS.'
Much eine was spent examining the latest revision to this Figure (Revision 9) before two previously closed isolation valves were discovered now to be open. Not understanding the reasons for such a change, certain problems could exist with these open valves as are specified in Chapter 6.0 of the attached question list. Along these lines, it is our position that an itemization of all future ravisions to FSAR figures (especially Engineered Safety Features)
- uat acconpany each new diagram *sith a clear rationale for the changes."
It is again perturbing to see the latest FSAR revisions submitted with no regard to the above request (i.e., Figures 5-3, 6-16, 6-17, 7-6, 7-7, 7-7A, 9-1, 9-2, etc., 10-1, 10-2, etc.).
Please inform TECO that we would like this information nov.
p-Ly. at s!p.cd by-G. R. Masetis Reactor Systema Branch Division of Technical Review cc:
V. Stello S. Varga T. Novak R. Eaer 8 0 0 2 0 5 OT99
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