ML20086H111
| ML20086H111 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 10/03/1975 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20086H108 | List: |
| References | |
| AO-75-65, NUDOCS 8401130430 | |
| Download: ML20086H111 (1) | |
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-~~r-CORRECTED PHILADELPHIA ELECTRIC COMPANYs' CORRECTER _ COPY _
f Peach Botton Atomic Power Station C O P_Y s Delta, Pennsylvania 17314 October 3, 1975 I
Mr. James P.
O,'Reilly, Director p
Offi ce of Inspection and Enforcenent M
Region 1 g,
United States Nuclear Regulatory Commission W
631 Park Avenue King of Prussia, Pennsylvania 19406
Subject:
Abnormal Occurrence"2L-Hour Notification
, CORRECTED COPY --- INITT AL R?PODT 7MDTCATFD INCORRECT UNIT.,
FAILUBE OcctPRED OU 1:U IT g,
Confirming R.
S. Fleischmann's phone conversation with Mr..Valt Baunack, Region 1, United States Euclear Regulatory Commission on October 3, 1975 l
Reference:
License Number DPR-56 Technical Specification
Reference:
3.6.C.2
'[
t Report No.:
50-278-75-65 l '
Report Date:
October 3. 1975 Occurrence Date:
October 2 1975 Facility:
Peach Bottom Atomic Power Station r
R.D.
1, Delta, Pennsylvania 17314 Identification of Occurrence:
Dryvell Radiation Monitor inoperative.
Conditions Prior to Occurrence:
I Unit 3 at approximately 555 power.
s
. Description of Occurrence:
Alarm was received indicating sampling system exhaust pump suction 1
was low.
During subsequent investigation it was found that flow to the Dryvell Radiation Monitoring System was blocked at a pressure control valve.
Designation of Apparent Cause of Occurrence:
N Under investi6ation.
Analysis of Occurrence l
l, The Dryvell Radiation Monitor was returned to service shortly after the problem was identified, and satisfactory operation has continued, although investigation of the problem is still in progress.
Data 3
displayed on the radiation monitor when returned to service indicated i '.
normal dryvell radiation levels, making the safety implications of this occurrence minimal.
['
Corrective Action:
i
-To be determined after investigation.
l Failure Data:
j None.
i l
1 Very truly yours.
fW/ $
l W.
T.
Ullrich, Superintendent Peach Bottom Atonic Power Station (Jws) 5 8401130430 751010
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