ML17345B177
| ML17345B177 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 07/20/1983 |
| From: | Harold Denton Office of Nuclear Reactor Regulation |
| To: | Heltemes C NRC OFFICE FOR ANALYSIS & EVALUATION OF OPERATIONAL DATA (AEOD) |
| Shared Package | |
| ML17345B178 | List: |
| References | |
| NUDOCS 8307260134 | |
| Download: ML17345B177 (2) | |
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~ISTRI B UTI ON Central File NPtC PDR JUL 30 583 L PDR NSI C
'RC ORAB Rdg/TIppol ito DEisenhut PPAS GLainas TSpeis SVarga RMattson GHolahan RVollmer SMcDonald HThompson Harold R. Denton, Director PBobe NGr ace
~ Office of Nuclear Reactor Regulation DPickett BSnyder FMiraglia/LBerry PROPOSED ABNORMAL OCCURRENCE -
LOSS OF AUXILIARY (YT 839207)
FEEDMATER SYSTEM AT TURKEY POINT MGarver (839207)
KBowman (839207)
MEMORANDUM FOR:
C. J. Heltemes, Jr., Director Office for Analysis and Evaluation of Operation'al Data FROM:
SUBJECT:
As requested in your memorandum of June 24, 1983, we have reviewed the proposed abnormal occurrence (AO) writeup for the Turkey Point loss of auxiliary feedwater event of April 19, 1983.
Me find the proposed writeup to be in general agreement with the NRR proposed AO writeup of June 2, 1983 (reference Eisenhut to Heltemes memorandum).
O
. Me do, however, have a comment on the AO writeup regarding the cause of the incorrect valve alignment.
Page 5uofhthe writeup states that it is "virtually impossible" to mistakenly identify the valves that were misaligned, thus causing the unavailability of the auxiliary feedwater system.
This statement does not appear Co be consistent with page 6
of the writeup which states that both the NRC and licensee concluded the "personnel error appeared to be the major causes)'.
Include a discussion that the licensee initi'ally considered the possibil,ity of intentional tampering but later ruled it out; and
- 2. If personnel error was indeed the cause of the event, page 5 should be modified so that the AO Aport does not say that it is "virtually fÃpossfble" to mistakenly identify the valves in question.
8307260134 830720 PDR ADQCK 05000250 Original Sigcel by S
PDR H.R. Benton These statementscalongwith the inability of the twice-per-shift-AFM. system checks to identify the valve misalignment certainly suggest the possibility of intentional tampering with the valves.
Doe to the recent NRC concern
'regarding events of the type (i.e., IE Information Notice 83-27, i.'gpera-tional
Response
to Events Concerning Deliberate Acts Directed Against Plant Equipment" dated May, 4, 1983),
we believe that the possibility should be addressed.
Such a discussion was.included in the NRR proposed AO writeup.
Therefore we recommend the following modi fications:
Harold g.
Denton, Director Off ce of Nuclear ctor pegu ation OFFICE)
SURNAME(
DATE)
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