ML20147A849

/03L-0 on 780728:Rpts That Surveillance Test on 2AB Diesel Generator Resulted in Overspeed Trip as Generator Was Unloaded.Caused by Linkage Cap Screw Breaking in Governor Linkage.(Encl to 7809190315)

ML20147A849
Person / Time
Site:	Cook
Issue date:	09/12/1978
From:	Rischling J INDIANA MICHIGAN POWER CO.
To:
References
LER-78-056-03L, LER-78-56-3L, NUDOCS 7809190322
Download: ML20147A849 (2)

Text

< ,

NRC Ft"'M 306 .-

U.S. NUCLEAR REGULATORY COMMISSION l i

-09 .

- UPDATE REPOR}gglbgRE O CONTROL BLOCK: l l l' l' l.-lh *

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) i lo IiI IM I;t lD lC lC l2 l@l '0] 0l 0l 0l 0l 0l~ 010l 0l 0l 01@l 25 4 l 1l 1I ll 1l@l67 CAT l 68 Ig i 7 8 9 LICENSEE CODE 14 16 LICENSE NUMBER . 26 LICENSE TYPE 30 i CON'T IOl11 3E l L l@l 0 l 5 l0 l0 l0 l3 l1 l6 l@l069 l7 l2 j8 l7 'l8 l@l 0] 9 l 1l 217 l 880l@ 74 75 7 6 60 61 DOCKET NUNIBER 66 EVENT DATE REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h '

1 O I 2 I l A SURFTT.TANCE TEST ON THE 2 AB DIESEL-GENERATOR RESULTED IN AN OVERSPEED TRIP l 1

lO I3i lAS THE DIESEL-GENERATOR WAS UNIG\DED. THIS EN m &n T.S.3.8.1.1. , 'HE APPLICABLE l lO I4 l IACIION REQUIREMENTS WERE FULFILLED. PREVIOUS OCCURRENCES OF A SIMILAR NATURE l

o;3l l INCLUDE

050-315/78-01,09 AND 77-42. l l 0 le l' l 1 10171 I l 101a 1 I l r 8 o 80 DE CODE SUBC E COMPONENT CODE SUBCOdE SV LO_L9_J lE lE l@ {@ {Q l El 4 G lI lN l E l@ {@ ] g 7 8 9 10 11 12 f3 18 19 20 SEQUENTI A L OCCUR RE NCE REPORT REVISION

_EVCNT YF AR REPORT NO. CODE TYPE

@ g"LEH/RO '= l7I 8I L-_J :I I516i i, l . 10 13 i i Li. i _._i i l0,i ,

[ _ 26 22 23 24 26 27 28 29 30 . 31 32 NK N A T ON ON PLANT E HOURS SB IT FOR 6 B. SUP LtE MAN F CTURER (A_J@l Xl@ l3bZ l@ [_Z_j@ l010l010l [Y_j @ [N_j@ l43' Zl@ l W l 2 l 9 l 0 l@ ,

33 34 36 3/ 40 41 ' 42 ' 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h j i ; o ; lINVESTIGATIm RENEALED THAT THE Ohezu TRIP WAS CAUSED BY A LINKAGE CAP SCPEW l .

[i;,y l BREAKING IN THE GOVERNOR LINKAGE. AN EXAMINATION OF THE GOVERNOR LINKAGE FAILED l

, 7 g70 REVEAL OHER SIGNS OF WEAR. THE OTHER DIESELS WERE ALSO INSPECTED. THIS LINKAGE l

, y ., , l CAP SCREW WAS REPIACED ON EACH. A DESIGN CHANGE HAS BEEN INITIATED (RFC-12-1618) 'l g l70 INSTALL OILITE BUSHINGS ON TIESE LEVERS. (SEE SUPPLEMENT) l 7 8 9 80 ST S  % POWER OTHER STATUS ISCO R DifiCOVERY DESCRIPTION i~iTi l Laj@ l o f o f oI@l nA I Laj@l stmverruNee resr l A TtVITY CO TENT RELE ASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELE ASE li is i 12j @ L2J@l '

na l I na i

PEnSONNEL ExeosMEs NUMBE R TYPE DESCRIPTION 12171 1010' 101@Laj@l -

NA I

" PEnSON~d'nauLs NUMBErl DE.SCRIPTION

_J80 U_LR_l l 0 I o I o l@l12 NA 7, H 0- 11 ,

O!5 OF OF DA AG TO FACILITY e

. Em Laj@l- NA 80 I -

.7- U 9- J10 DESCRIPl *0N

• IS 2 0 , hSUE @l - NA l l_[ l I l l l 1 1 1 I l ( ;

7 - st 9 68. 69 80 & i

' 7 fro 9Ii0o31'-

NAMb JF P) EPARER Jack Rischlino eHONE: 616-465-5901 o

g

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

=

fr - ,

..,.. , j

~ ' -

h 4 a

I I

1 4

- SUPPLElGE 'IO IER #78-056/03L-l' l r

.t

$4; 3 CAUSE IESCRIPTIN SUPPLEMENT l

LNTIL HIIS RFC IS'INSTATIEn,' 1HE MUNTENACE DE:PARIME2R WILL BE ,

' INSPECTING TIE GCMGNO'R LINKAGE ON TFE DIESEIE QUARIERLY EOR ,

SIGNS OF WEAR.  :. ,:

-s s

h

?

(

-l

'?

}

i I r s

I;'

1

'1 l

) ,]

a

/3 1 e i

' f P Y s.' t ;

" " j s <

s. . .

.L 4v -

t

.e.- 9 y 9 g- y 9-- m,.,,,, .-.g. g J,., , ,.,,,,',, y j .}j ,, _ , , , _