ML20086G875
| ML20086G875 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 06/23/1975 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| AO-75-35, NUDOCS 8401120554 | |
| Download: ML20086G875 (1) | |
Text
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PHILADELPHIA ELECTRIC CF4PANY Pasch Botton Atomic Power Station 3.
Delta, Pennsylvania 17314 June 23. 1975 Mrs James P. O'Reilly, Direttor f0f fice of Inspection and Enforcement-
> > s %,
.[tates Nuclear Reguiataryi.Commissioni.
n e 631 Park Avenue
,p
- h King of Prussia, Pennsylvania..s19406 Subiect: Abnornal Occurrence 24-Hour Notification-
- 1...
jConfirming 4.'.U11ricir!c phone conversation with Mr. Jim Partlow, Region 1. United States Nuclear. Ecgulatory Co:=sissiort on June 22. 1975.
l
' Reference r.
License Number DPR-56
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Technical Sp'ecification Referencer. 3.5 B.1-'
7 Report No.:
50-278-75-35 Report Date:
June 22. 1975 Occurrence Date:.
June 20, 1975 Pacility:
Peach Botton Atomic Power Station R.D. 1. Delta Pennsylvania 17314
_ Identification of Occurrence:
- - =th -ca m -
-2 w __
T_
_r - -: '--
n!- - ^
tripped on ther=al overloui.
=A Conditions Prior to Occurrencet -
Unit at 50 power.
Descriptien of Occurrence:
During surveillance testing of the high pressure service water system, FD-lO-89C moton j.
tripped on thermal overload.
Designation of Apparent Cause of Occurrence:
Under investigation..
[
Analysis of Occurrence:
There were minical safety implicationa associated with this failure.
l The valve is used only in the shutdown coolinP,.or torus cooling tmde of operation, neither of l
$ivhich.1s.. required. With the unit at power operable and could be. manually positioned as required.As well. the valve remained.nechanically.
Corrective Action:
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Under investigation.
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Pailure Data:
1 Previous failuresi reported as AD-277-75-24, 278-75-5. 278-74-36, 277-74-13, l
278-74-17 and 277-74-53.
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Very truly yours.
l U. T. Ullrich Superintendent PrW l
l Peach Bottom Atomic Power Station l
l l
l 8401120554 750630 l
PDR ADOCK 05000278 S
PDR j
copy sFNT PEGION 2