ML20086J030
| ML20086J030 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 03/24/1975 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20086J021 | List: |
| References | |
| AO-75-21, NUDOCS 8401230050 | |
| Download: ML20086J030 (1) | |
Text
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PHILADELPIIIA ELECTRIC COMPA!."'
'f
- adh 14tece Atonic Fouer Stn a
j Dolta, Pennsylvania 17314 March 24, 1975 J
Hr. Janco P. O'Reilly, Director bg Offica of Inspection and Enforcement
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States !!ucicar Regulatory Co-Msofon j;
631 Park Avenua King of Prunnia, Pennsylvania 19405
- Subfect:
Abnorn s1 Occurrenen 24-Hour tiotifiestion
- Confinning J. F. Franz' phone canveenstion with Dr. CharJew Calina, Ret; ion 1 United Staten 1
- ucluex Regulatory corariasion on twch 21, 1975.
Refercucc:
Licotuto !Tumber DPR-44 C unt i 11-Sprt.". m iou Resuscace.
Idulu.h-2.6 Report !!o.s
!A. - 17'-75-22 Report Date:
March 24, 1975 Occurrenen Dato:
Ifarch 21, 1975 Facility:
Peach Dotton Atomic Power Section R.D. 1, Delta, Pennsylvania 17314 Idantification of Occurrenco:
Failure of SMI Channel C.
Conditions Prior to Occurrence:
Unit 2 at full pownr.
Deceription of Occurrence:
The "C" SD1 was discovered to be failing downscale during a nor=s1 ocan of control roon instru=ents.
~
Designation of Apparent Cauan of Occurrence:
Blown fuco in povar cupply to drcver.
Annlynto of Occurrence:
Because tha rod block function frca the $31's is bypnosed in the RIM mode, there are no safety icylications ssuociated with this fciluro.
Correctiva Action:
The Pre 11ninary innstication rc*ealed no obvious reason for the fuse to blev.
fus vna replaced to return the channel to carvice.
Investigation concicua:s.
Failure Data:
!!one provices.
8401230050 750331 PDR ADOCK 05000277 S
PDR Very truly yours.
[MjbS[
U. T. Ullrich, Cupctintcclant Peach Ecttosa Atomic Pow.er Station 1
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