ML19345D871

LER 80-027/01T-0:on 801124,HPCI Valve MO-3-23-14 Kept Driving in Closed Direction Causing Valve Fuses to Blow. Probably Caused by Improper Adjustment of Valve Closing Torque Switch.Valve Disassembled,Inspected & Tested

ML19345D871
Person / Time
Site:	Peach Bottom
Issue date:	12/09/1980
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19345D867	List: ML19345D866 ML19345D871
References
LER-80-027-01T-01, LER-80-27-1T-1, NUDOCS 8012170641
Download: ML19345D871 (1)

Text

_ . .- - .. _

,a .. . . , . -u... .

mit 3 LICENSEE L"/kiJI iEPult I n port :io.3 .s1-27/ IT i

con: Pot utocK: l l l l } l

!@ iPLEs.se eninr on iveE Att nEOulHEU GF UM+ MMOD i d 0 l 1a lu l P ! uCtNstc A l P lil !S !324l @lis 01 0l 10 l Ol 0 ! O ! 0 l - l O i 0 l@bl 1 l 1 ! 1 [_L,l@CC @

Coot ticts ,e Nuvtit.n .

rt. ti<. t . c t i v ,.. in .i - .

, ccN T O i li s[nCE60 l L !@l015 lOOCK 0l ET-lNUMU Ol2 l7 18 a@lir.i1 l 1 l 214 l S l0 @l1 l2 !0 '9 4 3 'O _;[

e 61 En Evt N r n4Tr 74 'd ni "o:i r p : r a tv. N r orSentenon ,mo ruoualu.t coNaout Nei u (io) it at power, llPCI valve l During surveillance testing with th un j3j l '30-3-23-14 ke pt driving in the closed direction causing the valve fuses fit I te blov. The fuses were replaced and valve onorability restored. During  !

4

, t ., i gesting on December 1,1980 the valve failed to fully close. Subsequent '

3a ; l stroking of the valve was successful. The valve was later disassetibled, j 7- , ' u

Wt:-i, : ;. 0 3 2- d , ..d ,.es::ed. A*.1 ocher ECU6 systems and the RCIC l

, ,; j  ; system were available during this event.  ;

a 9 dJ SYSTE M CAUSE CAUSE COvP. u tv c CODE CODE ScuCCDE COY 70N WTCOOL suuccet w .ccat 7R Ls l F lh l Elh l A lh ! Il NI Sl Ti R l U !h l 3 lh lb (-)

. 9 10 11 12 13 16 19 JU SECUEN TI AL OCCUR R E NCE REPCRT HEV8M N REPORT NO.

• CCOE TYPE N C, .

@ ;tgqipo  ;,g ! Isl01

_. 21 EVENT YEAR 22 l-I 2J L 0l2 !7 l 24 le jol.i_j lT I l-1 l0 l 2G 2r J

'a 2u 30 31 11

' C T2 '}. 4 FUTUAC EFFECT SH8 8TCCWN A TT AC HM E N T Npp o.4 PRit.1E c0?. P. CCY'ONU:7 T As #. *4 ACTION CN PLANT METHCO HOURS SbuYlTTED FORMbVU SUPP LIE H 9A *J U F ACTu n E ft

! F j@l34 Z l@

-3J l Z l@

35

!Zl@

36 31 l0l0l0l0l 40 lY l@

41 lYlh lAlh lLl2!0l0!@

42 43 44 4 CAUSC CGSCRIPTION AND COnHEcTIVE ACTIONS h g '"2e cause of the occurrence is believed to have been improper adjustment  ;

,- g the valve closing torque switch. The immediate corrective action was adjustment of the switch. The valve was later disassembled, inspected, .

7g reassembled, and satisfactorily tested.

4 T' l r..en av etToon or -

STATUS *.POWER OTHER STATUS DISCOVE RY 045COVEHY DESCH2PTiON

.il,j !E l@ l0 [9 l9 l@l NA l l B j@ Operator Observation 4CT.vn v CCOTENT OF RELE ASE AMOUNT OF ACTIVITY L OCA fiOre OF ntiLE ASE NA NA

] lZ/ELEASE@O d 'J l

10 t1 lZ l@l 44 l l 45 l

PEHSONNEL EXPOSURES NUMBER TYPE DESCRIPTION IB' 10 '

lo io l@l 'Z l@l" N j

• ERSONNEI.'iN;UdiES NuYBER OESCRIPis0N@

C. l0 10 l0 l i$ 3 II l

I2 NA  !

J '.)

4 O'.S OF Oil OAMAtaE TO F ACILi TY h h i 9 mi j r ivn ouCmerioN D

YM R__ * '

l Z l@l NA iJJ l\  ! .@ .

[

uuusTY oeSCRiPriON l () ] 2 l y Q [ 8f - /

nuc un u,wy

'f

@ issVENI l NA ,C , /,r , , ,

l llll [ll l l! Iil u s0 es ' c.e <,> :a (215) 841-5020 N AME OF PREPAR.E.R. _..

'. j ' jE J. Cooney(PHONE: ._

2 3

~ ~ _ . - - . . _ . _ ~ _ . - _ . - -__ ..--- - - _ .-.._, . . _ _, _ _ _ - - - _ . _ . . .- - - . . _ - -