ML19329A961
| ML19329A961 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 09/01/1978 |
| From: | Moseley N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | Williamson J TOLEDO EDISON CO. |
| Shared Package | |
| ML19329A940 | List: |
| References | |
| NUDOCS 8001270219 | |
| Download: ML19329A961 (2) | |
Text
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SEP 01 1978 i
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Toledo Edison Company Docket No. 50-346 ATTN: Mr. J. Williamson 4
president and Chief' Executive D [ T lD
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Edison Plaza U
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30 Madison Avenue
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Toledo, OH 43652 7
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Gentlemen:
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e, Inspectors from our Region III (Chicago) office recently completed a
~3 special inspection to review a reportable occurrence involving design
- 'i and installation defects associated with the sequencer logic of the Safety Feature Actuation Systas. The findings of this inspection, whfeb included items of noncompliance, were reviewed with the plant Superin-tendent during the inspection and were discussed by Mr. Keppler.
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i Director, Region III and meebers of his staff with Toledo Ediscn Corporate management on August 16,1978. The items of noncompliance identified during the inspection are listed in Appendix A to this
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_.J letter.
. Ml Our findings indicated that modifications made to the sequencer logic r
portions of the Safety Feature Actuation System were completed on February 12. 1977. and that the startup check-out was completed on -
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February 14.1977. This startup check-out did not detect the existing M
wiring armrs. The preoperational test performed on this. system was i
l completed on February 23,1977. and did not indicate any system opera-bility problems. In addition a scheme check was made on the modifica-s tion, which. indicated no wiring errors. However, on June 2. 1978,
during the performance of a surveillance test on a portion of the i
Safety Feature Actuation System, the problem with the sequencer was I
finally identified.
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Because of the significance of the defects with the sequencer logic of the Safety Feature Actuation System, the enforcement aspects of this s
i case have been escalated from the Regional Office to Headquarters for
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handling.
In addition to the need for corrective actions regarding the specific f
items of noncompliance listed in Appendix A, we are concerned about the r0 9
M effectiveness of your management control over testing activities.
Consequently, in your reply, you should discuss the actions taken or
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NRC RM 318 Up.76) NRCM 0240
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Toledo Edison Company.
planned to improve this area. Specifically-describe the additional
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action planned cr taken to' ensure that: 1)~ scheme checks of systems,are perfonned in the depth required by your administrative procedures and,
- 2) system test procedures are-written and reviewed to assure that plant operations are not dependent on undertested systems,. equipment, or componentsi Your written '.eply'to this letter and Notice of Violation and the findings of our continuing inspections of your activities will be considered in determining whether further escal-ad. enforcement action such as Civil ' '
Penalties or. Orders may be. requirt J to a'ssure future compliance.
In accordance with Section 2.790 of the NRC's Rules of Practice, Part 2, Title 10, Code.of Federal Regulations, a copy of this letter and the enclosure will be placed in the NRC's Publ.ic Document Room.
Sincerely, l5l
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N. C. Moseley, Director Division of Reactor Operations Inspection
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Office of Inspection and Enforcement Enclosure.
Distribution:
Appendix A. Notice PDR t I.E.Siles
.f of Violation:
NSIC Central Files (gellow) l LPDR X00S Reading File TIC ED0 Reading File
. State of Ohio IE Reading File l
J. G. Davis ~
C.,Norelius, RIII N. C. Moseley, OIE F. Ingram, PA i
J. P. Murray, ELD
.J. Lieberman, ELD M. Grossman, ELD D IQ D
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L. Engle, DOR:NRR J. Crooks, MIPC O O
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j, T. J. McTiernan, IA P
0 ~9~T W. P. Ellis T. W. Brockett V
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G. R. Klingler, ROI:IE
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