ML20084U259

LER BFRO-50-296/765:on 760826,during HPCI Startup Test, Turbine Cycled Between Overspeed Trip & Trip Reset & Restart Point.Caused by Failed EG-M Box Due to Grounded Connector on Governor.Connector Ground Cleared

ML20084U259
Person / Time
Site:	Browns Ferry
Issue date:	09/17/1976
From:	Fox H TENNESSEE VALLEY AUTHORITY
To:	Moseley N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
LER-BFRO-50-296-765, NUDOCS 8306280379
Download: ML20084U259 (2)

Text

_.

n LICENSEE EVENT REPORT

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, ,CdJTEOL BLOCK:l l l l l l l (PLEASE P.ilNT ALL REtulRED INFORMATl!N) 1 6

LCENSF NUMOES' YE TY 01 l fA Al Ll Bl Rl d 3l E

l 0 l 0 l-l0 l0 l0 l0 l0 l-l 0 l 025l l264 l 1 l1 l1 l130l l0l3l 31 32 7 09 14 15 EVENT DATE REPOAT Dait CAffGOAY TYP DOCKET NUMBEA 01 cOtrT l l l M lLl l 0 l 5 l 0 l-l 0 l 2l 9l 6l l0 l8 l2 l6 l7 l674l l 75 l l l l l 80 l

60 60 69 7 0 57 SG 59 S1 EVEfJT DESCR;PTION the turbine cycled between it's overspeed trip and the l

) @ l_During a HPCI startup test, 80

'7 89 l 3E l trio reset aid restart point. (B' FRO-50-296 / 765 ) eo

7 89 ,

I

. [iB I 80

7 89 I 8I 7 09 60

! _ 80

'7 DD Pnur S A M C URR VotAfoN COMPONENT c00E E CODE l Ml El Cl Fl Ul d W lWl2l9l0l47 lNl

@ lClJl l El 7 89 10 11 12 17 43 44 48 CAL'SE DESCRIPTION 8270-811 failed due to a grounded connector l DQ l A Woodward Governor Co. EG-M box, part No. 60 7 89 l UE l on the governor. .

ea 7 n9 I GE I 63 D SC VERY oISCOVERf DESCR:PTON

% POWEA oTHER STATUS stA 1

d l O! O! 8! !

12 13 NA 44 l h45  !

46 Startuo test 60 7 8 9 10 LoCATON OF RELEASE RELE Sto oF AMOUNT OF ACTIVfiY l NA l DE lEl lE_)ASEl NA l 44 45 80 7 0 9 10 11 PERSONNEL EXPOSURES NUMDER TvPE DESCR!PTON i NA DE 1010101 LE_) 80 7 89 11 12 13 PERSONNEL INJUR:ES NUMD? R DESCR;PTON l

NA H 101010111 I 12 80 7 89 0FFSITE CONSEQUENCES NA I 8I 7 09 80 LOSS 09 OAMAGE TO FACILITY tyrt CisCn. PION l j

NA O

7 89 to ed l

PUDLICITY 8306280379 760917 .

l PDR ADOCK 05000296 PDR

' l S -[;

l 7 89 ADD 1110NAL FACTORS l

3 ! The connector ground was cleared by reassembly of the connector and a new EG-M box 7 09 All other required safeguard systems were operable. ] ,

l @ [vas installed and calibrated. t.O l 7 UD 1

" PHONE: m I

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• O TENNESSEE VALLEY AgHORITY CHATTANOOCA. TENNEccEE $7401 h f g' i

Septanber 17,1976 @ 9t/

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Mr. Noruan C. !!aseley, Director y '

l-U.S. Nuclear Re p tory Cor.uinaion

- S Ep J y 9 /g /8 Office of Inspection and Inforceuent Region II g ,, Qga.%g

1. p,,, 'g s 230 Peachtree Street, W., 6th Floor ,0 Atlanta, Georgia 30303 s 6, , s m

Dear Mr. Moseley:

N2SEE VALLEY AUDICHITY - B.%'N3 FERRY NUCIEAR PIANT MT 3 -

DOCKET NO. 50-296 - FACTTTTv ns TING LICE:33E DPR REPORTABLE

• OCCURIC3CE RE.M bhp-296 765 /

She enclo::ed report is to pr.: vide detaila ccacerning the HPCI turbino that cycled between its overspeed trip and the trip reset and restart point during an ICCI startup test. 'Jhis repors is

' sub:aitted in accorutnco with Browns Ferry Technical Specifications Section 6. '211s event occurred on Browns Ferry D.1 clear Plant

+

unit 3.

Very truly yours, NSEE VALLEY AMORITY

! L 8. Fox Director of Power Production n

Enclosure (3)

CC (Enclosure): . /

Dizuctor(3) .

Office of MLnagenent Infor:::ation and Program Control i U.S. Nuclear Ec.palatory Ccs: mission '

I "==hinJton, D.C 20555 wn, +n, (lg)) [

Office of Inspection and Enforcement -

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U.S. Nuclear Reculator/ Cocaisalon u==h %~ ton, D.C. 20555 4

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COIT BENT R .

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