ML20086L538
| ML20086L538 | |
| 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-74-12, NUDOCS 8402080299 | |
| Download: ML20086L538 (1) | |
Text
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'.. lir, &.r.ec P. O'(JDy, Nrector (V
1 United Etsten Ato ic Pnercy Cem.innion i
Director 4te of Ecculatory Operations 631 Park Avenue r
y T.ing of Prursias Per.nsy)vania 19460 g
Ahorrm1 D: currence Ph-Rour 1loti fier' tion j
Ribf.er t : -_
Confirring l'. Tleicch ar.n'c convernation with lir. D. Cephton, A.E.C.
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Reg. ion 1 Reculntory Operstions Office on March 19, 1974.
f, Deference:
Licence liu' ber M9 44, Amendment liumber 1 f.
S'echnical Specification Tabic e
5 Report l'o. :
53-277-74 12 Report hte:
March 19.1974 d
Occurrcnce Nte:
l' arch 18, : P';
- s.
Pncility:
Peach Pottor. Atonic Power Station - Unit 2 R. D. Is Delte. Penncylvania 17?14 I,
Int-ntifiention of Occurrenec:
ToDowing a Group 1 ico3retion and neran from about 48% power, i
a re11ef vehe which van mnuully upvrated failed to clone recalling
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in renetor b30w00en to the teruc until the reactor voc t4t about
[
ati:osp?.cric precreare.
Conditions Prior to Occurrence:-
Plant stab)e at nbout 494 power, i
Deceription of Occurrer,ce:
Daring ir.ctrur.ent curvoi13nr.ce testing n Group 1 icohtion was initiated due to volvis.c an instruncnt into cervice.
Pollowing the Group I
)
it.oh. tion r.nS rec.0 tor.1 corn.. the ?)D relief valve was mnually Operded to rcGuct prer. cure.
When clot-Jre van initinte6 at 933 prig.
4 the reMef valve failed to cic.co.
Repcated otterpts to cloce thic
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v43ve ini3cd. rt.r'altir.c in rx renetor blevdown to the torus to chout ntro::phcric preccure.
'1 Decigr.stion of App:srent Osucet Under ir.vectigation.
[
Ant.)ycic of Oces rence:
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Trdt. trat.rdent in co:nly:cd in the PSAR and results in no significtet g
drenge to the rectior verce'ior other cor.ponento. No radiation releaces occrcrred nc a rectalt of thic trnncient.
9; Corrective 1.ction:
Th.' valve viD be 04rar.ce:. bled, the coute of stiching deternined, and v
opproprinto repairc r.rde.
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Thi)ure D.dts:
'be pi' sot vnire r.ter, of the r;$r actuuttr had ctuch previoucly cn Janucry 32, 2974.- Refer to 3etter dated 3/1h/74 W.T. UDrich to Jr.nec P. O'ReiDy.
7 t'. 7. U.Drich. Superinundent s Pcnch Pott o.7.1. tor.ic Power Station p
a 8402080299 740321 PDR ADOCK 05000277
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