ML20086L108
| ML20086L108 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 01/09/1974 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20086L107 | List: |
| References | |
| AO-74-2, NUDOCS 8402070397 | |
| Download: ML20086L108 (2) | |
Text
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PHTTJ,nELM11A T3.!rtitic cur.mu
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Ecttes Atomic Power Station
- Delth, Pennsylvania Q
Pe 17314 January 9, 1974 p p g, g, d, n
y l'.r. Jares P. O'Reilly, Dirc: tor kf3 3 7 -k[O
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11pited States Atonic Targy Co:niecion "d h V.
Directorate of Rc5ulatory Operations i,f...%
631 Park Avenue 39 0G 4
King of Prussio, l'ennsylvania 6.4I A-g O.f.
91 Occurrence 24 Hour Notification s ). e w,,-
?.ubject.
Abnor
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-Confirning zy telephone converration with lir. Tom Shedlowsky, A.E.C. Regio
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Ergulatory Office on Janur.ry 9,1974, dhI License Naeber DPR-%, Anendnent Number 1, jQ, EcTerenec' Technical Specifiention hble 31.1
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! J. "-ll 50-2??-?k-2 J.l 1...;.fl Eeport No.
Report ibte:
1-9-74
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1-8-7 Occurrenee Datc:
Peach Bottom Atomic Power Station - Unit 2
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17314 Ihcility R.L.1, Delta, Pennsylvania Identifiestion of occurrence: Failure of LIS-2-3-231D which provides a Titsh Discharg input to the FJ'E logic.
Conditiona Prinr to Occurrence: Reactor critical and vented at 160 F reactor coolant te:
2_
ed o trip during a surteillance tent.,
Designstion of Apparent Csuse of Occurrence :Manufecturer's representative is due on cite Under investigation. faitch operated succeaafully after cover was recsved.
thia favestigation.
Friction incide the cwitch ecchanism is nuepected.
Failure of a. cingle cvitch to function in 'a one of two twice logic doen not Analysis of Occurrence:
Scram on hi h dischsrge volume veuld C
render the logic system inoperable.have occurreit with this witch inop No safety Valve leakage at this time is negligible.
lenbge occurred.
implicatione are an=ccisted with this occurrence.
Fot detemined at thic time. Reactor van shutdown at 5:00 pop.onIN74 Corrective Action:
investi ation continues.
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Failure Data-Thir, particular evitch has failed on other oconaions.
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RO Files /
PEACl! BOTTOM 1 ut, Central !! ail 6 Files A0 74-2 iO (Norn. and unsti m1TIAL5 REMAAKS Regulatory Standards (3)
Directorate of The above abnormal occurrence is forwarded for Licensing (l3) u,,
informatio,.
OGC Distribution will be made by this Ret,lonal Directors of fice to the PDR, Local PDR, NSIC, DTIE, and t o (s.<n..<io unm ma.us atuaans (II, III, IV)
State Representatives after review by the licensee for proprietary information.
urE F ROM (Narre and unit)
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a E. J. Brunner Region I PHONE m carg 8-337-1246 1/16/f4 USE OTHER StPE F08t ADplTional ptuang CIO : 1,71 0 - 443-44, h
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