ML20086L536
| ML20086L536 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 03/19/1974 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20086L524 | List: |
| References | |
| AO-74-11, NUDOCS 8402080297 | |
| Download: ML20086L536 (1) | |
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Kr. Jtecc. P. O'LAly, Direct or b
.I United F,totec Ato.ie T.:sercy Co:,itrion Directorate of I:ep3atory Operntionc 631 Pnrh Aver.ue i
Uing c'f Prur: cit., Pennsylvania 194%
s Pabhet:
Abnorr :1 Decu-rence 2ff-Ecur Motifiention l
Confirr.ing Mr. Ticicehrann's convertation with Mr. D. Caphton, A. L C.
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Region 1 Sopintory Operatior.c Office on March 19, 1974.
Eeference:
Liceme Humber ITT: 44, A endrent Hucber 1 Technien) Specification Table 3 7.4
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Report No.:
50-277-74-D j
Report Ibte:
lbrch 19, 1974 Occurrence Ibte: March 18,,y@
Tacility:
Peach Bottcc Ato..ie Power Station - Unit 2 j
R. D. Is Delta. Pennsylvnnia 17314
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identification of Occurrence Tonovinc c Group I sco)ation enuced by instrur.ent curveillance 3;
tehtJng, il vac deierr.ined that the r.ain cteam line drain valve
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j ID-2-77 failcd to cloce, i
I Conditionn Prior to Occurrence:
j P)nnt otnble at-approxir.stely 4b', power.
1 Deceription of Occurrente:
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DarinC drstrurent curveine.nce tocting a Group 1 icolation was
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initir.ted due to volving en incirurent into cervice, thin ctenn
,j 33ne drair. valve MJ-2-?? foi' icd to cfor.e no required by Group I t
ico).ntion.
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'i Dccipation of Apy; rect Ceurm of Occurrcnce:
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Thic velve ir. t.utow,tically c)ored during Group I icolation by de-coerC rinC reley 34.-H57 to cloro connector 3 4 The valve i
- lj vnc tec.ted reverid tis.er.on the foD oving dcy, during which
,1 correct cloture occurrcd ein:i. time. No apparent enuce hso
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yet bctn identified.
a Analytin of Occurrence:
i 7 hic valve. MD-P-77, in in serice with another icolation valve a
9 10-2-74, which did close correctly na n recult of the irolation.
Beccuce the lir.e var iro3nted, there vns no cafety.icplication.
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Corrective Action' if she o:currence is ctill under invectigation.
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] ThDure Data:
ll No previous.
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- . L U., UDrich, Superint er. der.t -
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Peach lbitcc Atccie Pcver Str. tion u
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8402080297 740321 O
PDR ADOCK 05000277 S
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