ML20126B600
| ML20126B600 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 03/10/1980 |
| From: | Hinrichs G JERSEY CENTRAL POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML20126B598 | List: |
| References | |
| NUDOCS 8003170328 | |
| Download: ML20126B600 (2) | |
Text
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Ha re.li 10, l'!00_,
occurrence:
9 : 26 a.m. -2:21.p.m.
OY'.is P. eos t v NUCLEAR GrnrMTING STATION FORKED R PitR. NEW ilER$EY 06/31 Repnetable Occurrence Report Nn. 50-219/BO-14/IP it.N11 F ) r AT I ON Viniation of t he lerbn ical
- r. pac if ications, pa ragraph 3.7.C. 3, (h.Ciluki tK.E :
when both standby diesel generators were DHL of service for airnont fIve hours.
T h i r. ovent i s c ons iderm.) to be a reportehle tv.currence as defined in the Technical Spec t fications, paragraph 6.9.P.a.2.
Thie. was reconnl7ed as a reportable occurrene e at 10:30 a.m. on March 8,1980, following identification of cause.
j 1NDIT10h% UPIOR Stcady 5 tate Power Routino Shut.down Ho t. stanelby
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told Shutdown I oad Obarvaas Omrino 7 ' pef,.clino ".hntdewn Roistina P~ce Opera t inn poneinc '. ! a t l u p Other (Speci fy)
Uperatlon Daarfor soberitIran.
Doaa s u r 'm od
- sw i t c h locked in refuel.
Cavity flooded.
'fstRTPTION Un Gunda y, Ma rc h 7. l OHO, a t 0 7fi n.m., duri a-g surveillance test T GCU!RRrt;CE:
(r.v,. 4. cn3) n$,.c.el G+nera tor 20Y. Pl us load 1.st, amaroency diesel ounorator #1 faned to syncronir= and tripo.d.
Concurrently, on.orcenry <llosel oepera tnr 77 was t acoswi out of service for mmlif it:a t. lon worit t boi.h diosal conorafors worn inopera bl e,
At 10:41 4.m.,
the reactor mode switch was lort.d in shutdown pusil.lon.
An administrativa hold on moving #uel and any work whir.h <nu1d can.
a rewinc t. inn nr renr tnr rev 4 ' y *ater lov 'I was put int o e f f,*c t when both d ienc l s were inoper e hl e.
f margency d icsc) generator 17 was raclied in and tested in accordance wi t h U lo s al Canora t or ?O1'. Plu c Load Test.
D'asel generator #2 l
wa.c. av8ilabic for service a t ?:71 p.m.
After ibo initfal errneren<o o' fbl*. (alluro on March 7. [980, c,fensiso tov.no of F1 d iosal nonera tor was perfarned to da t ormine l
the e i n *, o.
The inves t ivat ton int luded conn ~ finn of test instru-l w.n t s. t : n n to t elcot ( f v t he failed c.ompon e n t.
The problem, bnwever, we i n t erw i t i en t and was not. Ide n t if led unt 41 Marr.h n, lun0.
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Imrina this period, it was not known whether the malfunction woold affact the fast start capability (emer ency mdo) of the unit.
Te<. ting revealed tha t a Irme fuse in the "A" phase potential trane.forrme cirroit to t.be voltaam raculator would a M ect operation or eho unie in a n u ia.,t.. thoe r.nnirik a lir nc..*v*nt rapnet.
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]Other ( Spac i f., e Operator Ioto holdor lonse nn f u e,* f 7.
The o,w r.icn r y.14 n e.c I qcocraior s y n 1 <vn a s e, o, c - thera 15 an adaquate
@ Al v r. I '. M f or necra t ion of auu * ;.mn t. requirad for a 3f LURHi M.I. :
?uppl f o f t t a nrf b y powerin maintain the plant la a safo chut<fnwn safe plant *.but.down, condIt f on and tri operate the requ f red ancineered *afetv Ipature r
Since thIt condit$nn occurred e ys ipnw nt fol lowing an accident.
with the r= actor shut down and dur ino *efuelinq and ma inf.enance.
minimal.
Add i t. l onal safaty significanc is less than 712"r.. the which stopped fuel mvament and limited ailminl+.tratIve controit work on raartor syr,tems further r evluted the proba-For a refueling maintinanro l'ill+y of requiring sa f ety sys t.cres to cpera
- e. required to operate.
is t*andby Uns treatment system Arrident, the e ions alinw degraded cmpr:ancy core cooling Terhnical %por i f Ica systems during refe;ctinq.
(J.'upfrT I V E 1)
Dietel acnerafnr f2 modification curta iled unt il problem on diesel concrator #1 was correctad.
ACT ION:
7)
Dior.al opnarstor #1 lons, fu<.e holder was repaired.
f AIll!RE i1ATA:
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