ML19259D111: Difference between revisions
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. , . , : l :; ... .. . g73g4 , , ,, 4 gw' | . , . , : l :; ... .. . g73g4 , , ,, 4 gw' | ||
.~ .: ... ... _ . , .. & ; ;_ .. . - .. . . . .': i | .~ .: ... ... _ . , .. & ; ;_ .. . - .. . . . .': i | ||
. -y; *;;r.' e Angust 22, 1979 | . -y; *;;r.' e Angust 22, 1979 | ||
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Line 78: | Line 76: | ||
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g. | g. | ||
Report No. 2 / Le . | Report No. 2 / Le . | ||
Occurrence Date: August 21, 1979 .,. | Occurrence Date: August 21, 1979 .,. | ||
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Conditions Frior to Occurrence:. . | Conditions Frior to Occurrence:. . | ||
. ' . . . ' .N. y | . ' . . . ' .N. y | ||
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g "% g ,g b* . M d$ . g T " T. _ ; ../. ", ' * ' | g "% g ,g b* . M d$ . g T " T. _ ; ../. ", ' * ' | ||
Line 288: | Line 281: | ||
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Latest revision as of 07:52, 22 February 2020
ML19259D111 | |
Person / Time | |
---|---|
Site: | Peach Bottom |
Issue date: | 08/22/1979 |
From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
References | |
NUDOCS 7909070459 | |
Download: ML19259D111 (2) | |
Text
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FHtmit A Et.ECTRTC rI99PANY * - ' /
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. " ' # '?. . -.^. . . ~ 'j3' Mr. Scyt:e H. Grier " . . . .
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-? .. g Ofilce of Inspection and. Enforcement ..>. . . . X.J.
Region 1 -
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tktLted States Nuclear Regu.1 story Ccessissiec.
631 Park Avenue 'i o_. , *.. . .u, c . .r < . . $ .. Y.] y d '
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, King af Prussis. PA '
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SUBJECT:
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PEPCKTAELE OCCURRENCE - PRL*TT .WT,TFICATION -
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Conforming. R. 5. Fleistfutsnn's conversEtion with Mr. Grectman. Itegisnt 1 ?.lQ thtired. States Nuclear Regulatory Consismicn ctr F/27/~9. -
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Reference r Docket No. 50-277/278 "
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. - - Pesch Ecttes Units 7 stwI 3 m sTechnicst. 5pecificatim
Reference:
3.14.5.4.2
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Report No. 2 / Le .
Occurrence Date: August 21, 1979 .,.
Identificaticn. of Occurrence; . . ..
Failur- to maintwin <:entinuous fire watch. i.n the diesel generator tuilding. ~ ~ "
while the curdox systes was disabled . . .. -
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Conditions Frior to Occurrence:. .
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Unit I operating st rated power
.s Unit .3 eparating at 90% ; e er.
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. v . . . . , . . . , . . . . . . . . . . . . .. . . ,.
Apparent Cause of Occurrence. '
.m .
F=1ture to foticw procedure which design =tes duties ef a fire. watch. . .'
Anslysis of Occur.r-nce r - . - - . _,
._ ._ o ,.s._. . ..- ,
on the norning, nf 8/ 21/79. twr seprtr.st e Jr.b5 ---- wi g re .r.ree-d by centrset p rsonncI in. the dieset generator hqildhng. Each of th*=e. Jehs revit*ed that a fire watch be po*ted. The fire watches wre rested per procedure. I.mter that scyming ce? grimp cv. latel.it= task med the fire watch for that greerp fe.iled to restt're the 0.?: =y=r m to term.M in tha EZ diesel generator- hav. He assu=*ed rhet the fire wstch. fer the accend grtwq re raired t.*mt the G)g syste = r* mio cut cf serv 3 ca. Tha tec.rmd groun had..pp, knew. icd t e that thi.s particular secties of the fire protection.
systsvr was put of service vivee th-r were wding in eacther ar-a. As a resutt of these actions the EZ diesel Rener.nor area was,withcet a fire .
_ watch for a per19d of ebout ten almstes L
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--There is no safety significance to this occurrende since there was no T
.e working being dene in the diesel 3-nerater bay during the period that ~
%-f.,. .
rs, the fire watch was not present. In addition a guiard remained pested . aUs
' at _the only open entrance- te the diesel g-nerator. building. 'Ibe guard ".f}$'$ "'[
M. stated that had she detected's sache for fire situation she would have C-reportesi the same to shift supervision. I:nother noteworthy fact is '
- 9;7C' C wthat during n IDCA start of the diesel generators,. the C07 systen is 7 E ^-%W W(anatomatically disab.l,ed. ~ ' ~--@%dhW5.OM'.9
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... Corrective Action:.. . v ,.7".,"d+~...,,.;.
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-n Ienedistely upen ' discover.v of .t.his .incide tt r the CW. systrw in the E2 . . . -e .
v..S '
- diesel. generator bay was restored to service. The total ti.wr that the - ,Ns. r systes vss. Inoperable coincident with no fire Matth pr se st was about. .'
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ten m mutes. -;,.- w,1::,w'*:.
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. . Upon disernery of this incident all wert in the diesel generster building- . - 4 (.R 7
, rwas halted until all personnel involved. were ninstructed. en the r quirenents- [..T of perfor-ilng work in an ar-s' when a fire watch was r -sted . Afditional.
- t "' ..'
centract perse:nnet have also bestr reinstructed in this se=s =atter. -
It is felt thSt with the currecti're acticas autmE ha.e t.hur._xi.11 b
~
no reoccurrence. of this typ . -
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Previous Failures: - - . -
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