05000255/LER-1979-001-03, /03L-0 on 790102:reactor Protection Sys Power Range Channels NI05,06 & 07 Bypassed W/O First Tripping NI08.Caused by Failure to Use Administrative Controls

From kanterella
(Redirected from ML19270F384)
Jump to navigation Jump to search
/03L-0 on 790102:reactor Protection Sys Power Range Channels NI05,06 & 07 Bypassed W/O First Tripping NI08.Caused by Failure to Use Administrative Controls
ML19270F384
Person / Time
Site: Palisades Entergy icon.png
Issue date: 02/01/1979
From:
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML18043A464 List:
References
LER-79-001-03L, LER-79-1-3L, NUDOCS 7902060334
Download: ML19270F384 (2)


LER-1979-001, /03L-0 on 790102:reactor Protection Sys Power Range Channels NI05,06 & 07 Bypassed W/O First Tripping NI08.Caused by Failure to Use Administrative Controls
Event date:
Report date:
2551979001R03 - NRC Website

text

.

Palisades U. $. NUCLEAR REGULATORY COMMISSION NRC PQRM 066 (7 77)

LICENSEE EVENT REPORT ccNTRot stocio I

! I I I !@

iPLEAst PRINT cR TYPE ALL REQUIRED INFOMATICN' i

Q:l n i a l-l ^ l 113 I O f Ol.1 Ol' l@( all l '_ l1 l 1l@lu x,. @

l l io li I u l 'l o l A l tj

..c,m -,w a

u

..a m T. E a 7

.ct,.ut ::ct

%,'?"c' [ J@l 015 10101 01215 15 l@l0 1110 12 I 719 @l 012101117 I c l@

ccN, oti M

99 EvtNT QATE 75 4Estm?; ATE iG W

41 3CCF ET NLW85R 8

EVENT DESCRIPTION AND PRQ3Agtg CON $gCygNCgs @

Bring testing of EPS pcVer range channels :i'05, C$ and ':7, these hannels j o i: i nat time vere bypassed v/c first tripping :EOS (which was censidered at

g,,

to be inoperable).

Althcu.zh it was later determined that CCd was crerable at the time of the testing, the inadequacies in the administra-o,3, ti fe centrols 1re reportable oer T.S. 6. 9.2.b. 3 Upen discovery, fir:er ;

o 16 I

'se of the ??S bypass i

controls '.cautien tags) were used Sc Ocntrol t0.2 a;,

To hazard to public health or safety existed.

keys.

da 4 9 Cow #

vaLut SvfTEW CALSE CA.5E COCE COGE SL5 CODE 00M*0NENT :0CE 5%s00CE

'Leca:5 hd f lEl l

f f

I 1

a t

to et 12 12 s

1s 3

S E OL E Nyt AL OCOLanENCE RE*Cmf

  • Ev'540N EVENT VE AR AEPCRT NO.
OCE Typg gg,

@,*LE a noI ~ l cl Id 1 01011 l y

1013 l Q

b

','j, '

_v a

u a

2r a

a a

v n

.e.#804 paiwt..c, ve o wL..ostg r.

vp Let EssEC SeuTOCwN aT'acmWENT N

su'w cN eNe u '.T o

m.E a:TICN 56,I @

Ic ai310'@

L:5JSULi@

L,J@

Ll]@

.l 010 1 0 " I l.l,j@

L.2ibus.@

AC vE~co

- obas su uirE2 um I

l m

u cAust cEr.cRiPrics ANo w,cRccTivE AcTrest @

21s cecurrence ~esulted frc= the failtre to use administrative ;cntrols i,o l

which would provide a lasting reminder regarding the status of and special requirements related to testing the ISS pcVer range channels.

,,, i This occurrence vill be reviewed with applica'cle persennel.

.i i'i3 I

l i i. t 30 3 9 vf'wCD C#

STATL5 sPOWER OTHEm s?ATLS CiSC vEmv 315COVERYE 5CR ir'10 N 8 ActLt*"Y J@ l110 ('$l :I/A l W @l Reviev i

i ts go 7

8 9 to 12 13 43 46 ACTiviTV CONTENT LSCAT1CN CF eELE ASE

  • ELg asg of mELE ASt AMOL;NT OF AC*tVITY l1 16 ]

l :I/ A j

l I/ A l

3g

.4 45 7

6 9 to is

'E450NNEL EXPCSLaEs

  • T10N OE508'I/ E l

NLMB E 8

' vet I

I1 l7 lh)!O l

40 7

8 9 11

'2

'3 PEasoNNE L iNJLaiES t

3LwJE4 OE5G3:PTON l

i4 } f N J l l

  • d / ^

30 7

8 9 It

'2 LOS5 08 09 0 AM ACE TO FAC u'v

'v'E OEsemip'r0N 1

lj @l m 63 4

53 7

4 9

'3 NNC**bECNL' l

ll l I IjI

'l I 1 l

ggggg g Omip*.Qq IIO 5A 68 49 sc

?

I 9

'O 7S020603M

- n a. + ac._.e.,..

. o. :n.. i f-w.,

u t... s =.,se.

, _- a..../

.v r

Falisades Nuclear Plant Occhet 50-255

- < o,,, a s. -., *e c c 4,. 4.

,,- n e.

cr...

a 4...,.

..y.

- -. ~. _

- v a. s. e. '.- ".

.-a. va_ a__' a d.

i

' -a*

~"

.~. ~. - u' v.' a.' ' a d..

_' ^ ~s e',

C c*. ^e.

a # a,,_,../., "e.

.u 4,

c

" -a

.==. ac *.o r *y sve.

.-a..e.

y

.3 s

n.a.t._.e u.,.,<~as

.3 e_,,_n_..< _a,

~a.

1.<

n.

c..<na.

.-n.

n+,,

a +.

.u...

,n y..

s.

aa.

'. a a".s e *. " a.

- a. ", ' a a e_- a. n*.

^. ^.".a. +. *..^ r ^ c u' _ d. - - *. S a.

. w..e n n r..e.a. a. *. ^.- v=o-

. a."y ' a u. d, ". ". *.

.s a a.. *. 4..". a. d *. o - a. a. *.

  • c s - a.a ". 4 d.a.n. *.

4 ^ ". di +.' -.., *. " a

^>'""a' vas ">. *.

d.a. a 'sa. a. d. r, e.- a k. ' a..

. o Ecvever, because *he channel was operatir6 satis factorily 2nd was capable of c,n <

a +.<v, s. e-.s_,. o. u..e,e,_, -, v..n. e c. <, qy o. n s. =g '>.. z..

t=

- a, a..

..+- -

.. y e3.e, a

e.

vas placed in service. On January 2,1979, during scnthly testing of the R?S, k', o.

a. d c".a. a* a '. '._- a.

i.n ac ^.^. d. ar.ca.

.d.*." *"e '.a.e*

. u..e ".^ v a- =. ar.s-a..h ar " a. ' a~

". e. a.

r y

procedure. 3ecause pcuer r1nge 3',-C8 had not yet been declared Operable, the e., u..a. e.

.g.. u..n,a+.

.,s. s.

, a c i.e ~..~. _v uma < n a..u -.e.s a.

u.f, pas c. any c.e.u..,.

,tu o

...yy o

condition represented a conditien which appeared to be less conservative than

,<-.a.< g -n.n._n.;cn

.>o epe

..a

,.>.a. n. ua c,-..= yen..o.sc a.a.,..

.a a

...n s

a e _.<+..e. u.,/. u,.

a

.u

. e

,.,~l.

=.._,e+. not a.o.s, a. < n.n y e.. u..e..q,.,.<

._.e.n o-e. r m. a n.u., z., a : y-e n. a.e.t, a < - n G.. c. :. a

~

m.. -

vas d.a. *. a. _.4 " a. d. *." a* * " e c a.r.* a' ". 2.s.

a"*

^

vaa-nade.

2 ub. e ' a ".a. ".*.

  • o *. " #.3 c c."

.-a. " c a.,

. 4

+.

.e 2.

a n. a _d a.s e.

n. n. e A _4

  • A

.sas

  • ua'.E.#4 a.

e e e p c.

.,m a'**. v v nenp..a*4.....cc p,a.n.. 4... c o _1 en s

.e

.s e

mad that 3!-08 has been capable of perfer=ing ite intended safety function during u a..,, / o,

w + w-..o...

a a.e.d a c n..<.a,n.

c n.. a.<. 4. s.

Ao-a.. s,a.,., d,,. <

e,. u.. t. s.

2. -

n.

ec.

EPS cperacility requirements were met.

Ecvever, there were inadequacies in the

< mp _, a__-a "

  • a*.' en c.' a dm.4 ".' s *.-s*..* ve a r."*e.-^. ' s vk 4.^.". * ".*a a. e".e d.
  • o. a d.u-a.
  • " a.

da e-"a. a. c'

~

'. a. c k ".4 a a.'

o~ "re. 4.^. a = * '

^ ^n.d

  • d n. ~
- a y c.**. ak..' a.

a d.

. a. d"." d ar.c'y v.*e -4 n *." e

.C S, an d

  • .h..d -

d b y.

o

..v o

o'. o,. o_. k. 3.

Cause Descriptien C". '.Io'7a b.a. - 1,

' c, ~a e, 4 " o- +..-'a ^ *..d cn o- "e.-a. p ' aca d. '.. ". *

  • e 'a.d ' s" C. d.e -s

_ o's *. +.- ^ " *.. ^. '

A use of the EPS bypass keys in a nan".er such that an RFS power range channel vould a..t-,e.

n.c-a.s.

2, n. a., s e ue e yp as o e.,,,.,,. s s.,Ir-v-n..as

.c.a s +.

,y _,., C a. s

.t -

a u

a

. O +.

...yy u.

..v u.

s.

  • "..e u?.".a. '/*

.4-.

o 3n u g. 4e a.n

  • .b.e 'a d _' /'

O'.* d a..-s O c Ch.

e"..*. v ar.d S

_o..r.s.u./

3e. u..

- g u
  • a s *. d.". 3, s up a.. v.d C.a'/, e.-s c "-" e.'

a~" d ", e."s c "" a _' C ^. " d.". a. *..#.". 3'

' '" a

  • a. s *..# ". E. ". a..- a.

". C.'."..s*.

... ~

o aware of Caily Orders Ecok requirenents.

Because N'-08 was in service and Operating

=e.. e 2m.._4..,.4.-..,.4.tm.

a

- c _,,, s..,

+es+..<

, e sc.

e.,

...su. e. 4..

.e y

~

e..

. a o-c.e.

,A,..

y A

e.au........u....

2. b-us,aso- >,,...-

.u.

.gr_.

. ~

.s.o

.- v.ue

.c

_.,e n.s...<-.

,gs n.

--s

.~..

v 4 -a". a. = vculd kava. --^ v. d a,'

a.' as.d.n3

- a..4 " d a. -. ' ' * " a.

a"~2 F.8 o~*.a*.".o,

'..".4

"+"'d

>=".a.

d.

a y..

.. a..e. r.+. e A.

  • k.4. a-wu -.o.n.ca..

w a a..

y.

Corrective Action

d4 a" *. '.".

  • a e-a. d.

". k.. 4 s ^. c a "

.-a..". c e

"..a -

k. a. a..r.

"y" C n v = ^ ova..-f,

  • ..".a. k.sm as s

>..a."s ve.-a.

a e

v e

s

  • e "s w n.".a..i.

a"y,1'.d a a'^.' a.

C *y e."'. '. # ". 5

7. e ve d. '.'#.
  • b
  • e a. k.." # ^ # " ".s ar.d ' d, '._' " e
- a. v. a.va. d. ". #
  • b.

d D

4

~.

y.

.'s