ML20086H134
| ML20086H134 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 09/05/1975 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| AO-75-59, NUDOCS 8401130442 | |
| Download: ML20086H134 (1) | |
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PHILADELPHIA II.ECTRIC. COMPANT Peach Ectron Atosic Power Station i
i Delta, Pen 4sylvania 1731%
Mr. James. P.. O'Reilly, Director September 5,1975 Office of Inspection and Enforcecent Region 1 United States Nuclear Regulatory Cor:sission P
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hgd.8 DdluMM 631 Park Avenue King of Prussia, Pennsylvania 19406
.$ub_t eet t Abnereal Occurrence 24-Hour Notification Confirming R. S.
<sulatory Commisolon on Septer.ber 5,1975.Pleischr. ann's States Nuclear
Reference:
License.Nucher DPR-56 Technic =1 spectferneinn r,*
renre 1_7_n_t Jteport No. :.
50-278-75-59 Report Date September 5,1975 Occurrence Date:
Septec.ber 5, 1975 Facilityt Peach Bottom A' to=le Pover-Station R.D. 1. Delta, Pennsylvania. 17314 Identification of Occurrence i
A instrur4nt Nitrogen Co= pressor Suction valve, AD-5235, failed to close Conditions Prior to occurrence:
Norsaal power operation at approxicately 50?. power.
Dascription of Occurrence:
i During testing, A0-5235 failed to close when given a close signal Designation of Apparenc Cause of Occurrence The core in the actuating solenoid valve for AO-5235 failed to 4 top to the de-e position.
Subsequent cycling of the valve caused it Following a previous f silure, inspection of the valve did notto operate correctly, repeatedly.
failure.
The valve was successfully operated 30 ti:aes following the inspectic.n.
revaal any rensen for 4
Analysis of Occurrence:
Safety i=plicatiuns are minimal because the valve subsequently operated correc several times.
Corrective Action:
Replace the actuating solenoid valve.
Failure Data:
Report No. 50-278-75-54 dated September 3,1975.
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s Yety truly yours,
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U. T. Ullrich, Superintendent Peach Botton Ator.ic Power Station I
8401130442 750905 PDR ADOCK 05000278 S
,4 pon ssNr REGION s
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