ML20086L139
| ML20086L139 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 11/21/1973 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| AO-73-25, NUDOCS 8402070410 | |
| Download: ML20086L139 (1) | |
Text
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Delta. Penncylvani(xs) i 17314 v
I Nove ber 21, 1973 I
I Er. Jares P. O'Reilly, Director h
United Statec Atomic Pnergy Cor-iccion t
Directorate of Regulatory Operationc 631 Park Avenue g'C *7g 7
l King of PntSEie, Penncylvimic 19406 i.
object:
Abnorral Occurrence 24-Hour Notifiention i
Confirr.ing my tolophone convercation with you on Nove:ber 21, 1973 l
Reference:
License Nueber DPR-44 Amend.ent. Number 1 Technical Specification Table 3 2.A f
On Nove:bcr 21, 1973 with the reactor chutdown surveillance teste identified
[
n setpoint drift on a reactor lov level cvitch (LIS-2-2-3-1013). This j
witch is used in a one-of-two-tvice logic in the reactor scrac circuitry.
The ac-found cetpoint wac 3.43 inchen below the lititing setting (? O inches).
{
'ho other cetpoint chifte have previoucly been noted on citilar type evitchec.
5 Inve.ntigation is in progress. No cafety implicatione are accociated with thic I
failure since the circuitry would have operated properly from the ressining f
evitches. More frequent testing is conte plated.
{i fWYY I
V. T. Ullrich, Superintendent t
Peach Bctto: Ato:ic Power Station j
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TO (Name a, o wants in TaALs RtMARas R0 Chief, FS6EB PHILADELPIIIA ELECTRIC COMPANY RO:l!Q(5)/
PEACH BOTTOM 2 DN-50-277 R0 Files Dart Central Fbil & Files Regtilatorv.'itandards (3)
A0 # 73/25 TO (Name and unit)
INITIAL $
REMARKS Directorate of The above abnormal occurrence is forwarded Licensing (13)
OCC f r information.
Distribution will be made DATE Regional Directors (R0 II, TT T, TV) by this office to the PDR, Local PDR, NSIC, TO (Name and unit)
INITIALS REMARKS DTIE, and State Representatives.
DATE E
FROM (Name and unit)
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.i. B runn e r Region I PHONE NO.
DATE 8-337-1246 11/29/7')
USE OTHER $10E FOR ADDifiomaL RtgARKS
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