ML20004D717

LER 81-031/03L-0:on 810427,during Normal Surveillance Testing,Diesel Engine B Tripped & Declutched on Starting. Caused by Load Imbalance Between Engines a & B Due to Normal Wear of Linkage.Linkage Was Adjusted

ML20004D717
Person / Time
Site:	Fort Saint Vrain
Issue date:	05/27/1981
From:	Gahm J PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20004D711	List: ML20004D710 ML20004D717
References
LER-81-031-03L, LER-81-31-3L, NUDOCS 8106090680
Download: ML20004D717 (1)

Text

Nac e':Sm . . . . . m o . m,. . . . .. m. m . ,

(7 77)

LICENSEE EVENT REPORT

. [v]. (PLEASE PRINT OR TYPE ALL REQUIREO INFORMATION)

CONTROL'8 LOCK: l l

l 1 I I I lh 6

t 10111 7 8 9 I c l 1.tCENSEE o f r I CODE s I v l i l@l15n l o l i4 I n lo I n l o In l uCENSE NUMSER In lo l@l4 li111210l@l 25 26 LICENSE TYPE JC I

57 CAT 58 l@

CON'T 1o111 7 8 s VaCE IL @l015101010121617 @l01412171811 60 61 DOCKET NUM8ER ti8 69 EVENT CATE 74 @l01512l718lil@

7S REPORT QATE do EVENT DESCRIPTION AND PROSABLE CONSEQUENCES h lo12l lOn April 27, 1981, with the plant operating at 30% power and 70 MWe , "B" diesel engine l I o l a 1 l tripped and declutched on low exhaust temperature during surveillance testing on "A" l 1 o 141 l diesel generator set. Degraded mode of LCO 4.6.l(d). Reportable per Fort St. Vrain I i o i s i l Technical Specification AC 7.5.2(b)2. No accompanying occurrence. No effect on pub- 1 Io is l 1 lic health or safety. Redundant equipment available and operable. Similar occurrence l l

10671 1 R0 79-20. ,

I 101811 SOS'E *[ON s8CSE COMPONENT CODE SU8 : C'E SU 0CE 10191 7 8 I t i n l@ IE l@ l Bl@ l wi vi ci vi ul 918 .LIJ@ LIJ @

9 10 11 12 12 18 19 20 SEQUENTIAL OCCURRENCE REPORT R EVISION EVENT YE AR REPCRT NO. CODE TYPE No.

LE AIRO

@ ,ae g I a l ,1 l-l I n l ,1 i l I 'I 10131 It I l-l I 01

.,,, 21 22 23 24 28 27 28 29 20 21 22 N AC ON O P T ME HOUR $ $8 t PQ 8. SUP L E MANUPA RER '

IE l@lz l@ Iasz l@ l26zl@ l01Of0101 lY l@ LNJ@ l4aNI@ lu wl 2191 Ol@

22 24 ai 40 ai 42 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h I i t o l l Load imbalance between "A" and "B" diesel engines due to normal wear of linkage be- 1 li ii j l tween governor terminal shaf t and fuel rack of "B" diesel engine caused "B" engine to 1 i, 121 Itrip and declutch. Linkage was ad[usted to balance load between "A" and "B" engine i g,g3; l and "A" diesel generator was returned to service, and the Surveillance Test was com- I u

y ;pleted successfully.  ;

7 8 9 80 SYA  % POWER OTHER STATUS i C RY OfSCOVERY OESCRIPTION Ii 15 l 9l E l@ l 01 3l 0l@loN/A l lB l@l Operator Observation I i 7 i2 a 45 4e so 1 8 ,c ,,y,,, ig,,,

AELEASED OFAELEASE AMOUNT OF ACTIVITY LOCATION OF AELEASE l 1116 l l Z l @ d@l N/A l l N/A l 7 d 9 to 11 44 45 80 -

PERSONNEL EXPOSURES NUM8ER TYPE DESCRIPTION 11lill0l0l0l@lzl@l N/A 80 l

PEnsONNEt N2UZEs NUM8EA DESCRIPTION li la l3 l9n I o l n l@l12 Nu l 7 11 SO LCSS of OR DAMACE TO PA O!LITY TYPE DESCRIPTION 11191 l Z l@l10 N/A l 7 a 9 "

' NRC uSE ONtv

,ssuE5" OESCRiPTiON g 810 6 09 0 6 t'0 ,

I 2 I o I LsJ81 N/A l llll lll]llll l{

7 8 9 10 .

68 69 30 ;

MAME_nF_ PREPARER ts E '- RO7E- I'OM 74 b 6 A l