ML20086J136
| ML20086J136 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 12/16/1974 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20086J134 | List: |
| References | |
| AO-74-37, NUDOCS 8401230221 | |
| Download: ML20086J136 (2) | |
Text
- //~'.A PP%
m y
l'lIII.ADEl.Plila Et.ECTRIC CO.*D QY M47.# f.742' [//,,Q Peac h ht t eri At on ie Powc r S t.u ton
/
Delta, Pe nei<-yl va n i n L7J14 11r. Jar:.'n P. O'r.cilly, Dircetor United Staten Atoate Enerr.y Cernir.ston Directornte of Renotat.ory Opwrntionta 631 Park Avenue King of Pru:eni/s, Pennuylvania 19406 Sublect:
Abnorca L Occurrence 24-Hour Not i ficnr.lon Conf trre.in;: W. T. Ulletch'o convers.at ton with ::r. h'ait Baunuck, A.E.C.
Region 1 P.o;;ulatory Operations Of fice on Decer.ber 16, 1974 Iteforenca:
Licence Nu ber DPil *iG Technica L Specif Leution nofernnce:
Tablo 4,2. D Report t;o. :
50-273-74-37 Report Datst:
December 16, 1974 Occurronce Dato:
Decc::ber ih, 1974 Facility:
Peach Button Atonte ' Poi 7er Station R.D. 1, Delta, Pennuy.Lvania 173l4 Identifleation of Occurrence:
Pallure of a torn: h h;h va ter icvol nuitch J.S-3-23-91A to npera te.
Thin witch op. rate 9 co ov.:p the tiPCI uuct.toa ircca the cond.enrw t e storn:o tack to the uupprunnion pool.
Conditiono Prior to Occurrenen:
(*n t t 3 ct approxir.itely 557, powr, Description of Occurrence:
Durtn:; a routInc instrument m.rve L 11.a nc e f.e u t. LG-3-23 -91 A f allmi to operate.
t D nl:n'arion of Apparent Conne of Occiarrence:
The uvitch a.ua:a:Ay f Lipper nrn vu foun.1 to intrrfero~olightiv vtth the uvitch c4ce.
An.nlysis of Occurrence:
LU.1 23-91A.snd 1/7-3-D-9ta..;w ra* e indon-nd.mtly t2 'r.Ata the ilPC C suct ton fret, the condoomite prornt:c cnnk to che oupprecaton pnot.
LS-3-2)-91D hr.d luct been cernted nod foun.1 to funceton proper ty.
Decau :e the t'.:tluru of 1.:(-3-2'l-91A to operate vould not have intet t'., red with t he proper operation,of t.be nycten, the uafuty inplicationu nre trin itra 1.
Corrcettv.e Actton:
12303-Since a 9tottar failure. had occurred prev (ously 1n.f.a resid]uutr ent of the switch c.ve:v:ni a br.d b.:en p.:rfurswl, It w.w decided thto tir:e r.,
dit.=ntio the (1.)c.:/ ahunt t.nsenbiv.
The t, hunt taa found to haw r.recter S
t w.a on inch of encec; vertient pl.4y.
The + count of. play can red..e.u to abouc one-ninennch of an inch - an 1 the idemt uved hianer on th.3 f loac,f.neniston 2.rn to nilo.i adjuar:.:nt of. t nr.t uvit.en.i;. ;cndly_ auf.y iro 2 the bane of tho uwlt.ch c rfm. I!ao :. witch v.n cycled a nu2er of t tc.wr :
9401230221 741226 PDR ADOCK 05000278
/-
m n---
NO
o
)
f i
(V
'O
. Abno rmal Occurrenc_q 2_t. Itoitr Penort Nurb.r 50-270-74-37 using vater to. tit *t the float, and then rochecked uaint,the opproprinto.inntritment tuarvctilnnee teut.
Fallure Thta A previous fu11ure of thi1 r witch wan reported nu Abnoemi Occueroneu Number 50 *i70-74-25 7 Very truly ymsen, o', : *,,, y- ?:<nA. '
s,..,-..
b',
T. Ullrich, :N p ;- tritonient Pc:idh I;atica Atc.:le Po.mr Stettion m
j6
.e43.
4
_.