ML20137N682
| ML20137N682 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 01/30/1986 |
| From: | Paperiello C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Leslie Liu IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT |
| Shared Package | |
| ML20137N686 | List: |
| References | |
| NUDOCS 8602040209 | |
| Download: ML20137N682 (2) | |
See also: IR 05000331/1985036
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Decket No. 50-331
Iowa Electric Light and Power
Ccmpany
ATTN: Mr. Lee Liu
President and Chief
Executive Officer
IE Towers
P. O. Box 351
Cedar Rapids, IA 52406
Gentlenen:
This refers to the special safety inspection conducted by Messrs. R. A. Westberg
and R..N. Sutphin of this office on December 9, 1985, thrcugh January 10,
1986, of activities at the Duane Arnold Ener gy Center (DAEC) authorized by
NRC Operating License No. DPR-49 and to the discussion of our findings with
Mr. D. Mineck and others of his staff at the conclusion of the inspection.
This inspection was an indepth assessment of engineering, maintenance, and
surveillance testing activities on the High Pressure Coolant Injection (HPCI)
and Reactor Core Isolation Cooling (RCIC) systems.
It was prompted by the
NRC's concerns regarding the apparent lack cf reliability of both systems as
evidenced by the numerous Licensee Event Reports (LERs) issued from 1983 to
date.
No violations of NRC requirements were identified during the inspection. We
found your controls to ensure systems reliability to be reasonably effective;
however, certain key elements could be added and irrplementation could be
further ireproved thrcush increased management attention. The recorurendations
in Paragraphs 2.d(1) through 2.d(12) reflect weaknesses which we feel impact
HPCI and RCIC reliability. Accordingly, we request that you addrcss each of
these reccnm.endations in response to this letter.
We recognize that the results of your HPCI/RCIC reliability task force efforts
are pending. Our special inspection was ccnducted in parallel with your
effort and, as such, our conclusions are not intended to supplant the results
of your task force. We consider the work of your task force to be very
irrportant, and upcn completion of your investigation, we reque ',t its results be
made available to us.
In accordance with 10 CFR 2.790 of the Cormiission's regulations, a copy of
this letter and the enclosure will be placed in the NRC's Public Docunent
Rocm.
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We will gladly discuss any questions you have concerning this inspection.
Sincerely,
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Carl 8. Pa
riello, Director
Division of Reactor Safety
cc w/ enclosure:
D. Mineck, Plant Superintendent
Nuclear
DCS/RSB (RIDS)
Licensing Fee Management Branch
Resident Inspector, RIII
Thomas Houvenagle, Iowa State
Comerce Comission
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