ML20084T862

LER BFRO-50-259/7623:on 761103,diesel Generator D Exhibited Erratic Speed Behavior Under Load.Apparently Caused by Dirty Oil in Woodward Governor Model EG-B10 Actuator.Oil to Be Replaced Periodically

ML20084T862
Person / Time
Site:	Browns Ferry
Issue date:	11/24/1976
From:	Fox H TENNESSEE VALLEY AUTHORITY
To:	Moseley N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
LER-BFRO-50-259-762, NUDOCS 8306240221
Download: ML20084T862 (2)

Text

U

> .o LICENSEE EVENT REPOR -

. o , CONTROL BLOCK:( \jl l l l l l LEAT.E PRINT f.LL REZUCED INFERIAATEN) 1 6 l SE

"" 'Ne E9,Nf t t j

1. i[Aut tcENSE NuMsEn O1 l A.lL lB l R l F l 1l l 0l 0l-l0 l0 l0 l0 l0 l-l 0l 0l l 4l 1l1l 1l 1l 30 l0l3l 31 32 7 89 14 15 25 26 EVENT DATE REPOAT OATE CATEGOAv TY OoCKET NUMBEA W l 0l 5l 0l-l 0l 2l 5l 9l

@ CON'T l l l l 1 l 1 l 0 l 3 l 7 l 6J l l l l l l l 60

~

68 63 74 75 80 7 8 57 58 59 61 EVENT DESCRi? TION I

Q l During the performance of a surveillance instruction, dieseI generator D exhibited - 60 7 89

]@ l rn erratic speed behavior under load. Diesel generators A, B and C were operable. l

' 80 7 89 l

$ l The oil was changed in the Woodward governor hydraulic actuator and the diesel tested eO 7 89 l

@ l satisfactorily and returned to service (BFRO-50-259/7623) 60 7 8G l bl 7 89 pgejg

- 80 Mf F U R VOLATON f CODE COMPONENT COOE M lElBl W l Ml El Cl d d Nl lN l l Wl 2l 9l 0l lN l 12 17 43 44 47 48 7 89 10 11 CAUSE DESCR:PTION IHil l The erratic speed behavior of the diesel was apparently caused by dirty oil in a l 80 7 89 I

EE IWoodward covernor model to-B10 actuator. 80 7 89 1O I l

% POWER OTHER STATUS OSCO ERY OfSCOVERY DESCH:PTON MTA U 8 { l0l3]0l12 13l NA l 44

[B]

45 l

46 NA BC l

7 8 9 10 ACT iT[ CONTENT LOCATON OF FELEASE AELEASED OF AELEf.SE AMOt.:NT OF ACTMTV Laj NA l III LaJ l NA I 44 I

45 80 7 8 9 10 11 PERSONNEL EXPOSUREG NtN DER TYPE DESCAIPTON DE 101010l lB! l NA 80 l

7 89 11 12 13 PERSONNEL INJUR ES NUWEk ' DE SCA.PTION l

$ l 0l 0l 0l11 12l 7 39 NA 80 OFFSITE CONSEQUENCES NA l GE I 80 7 39 LOSS 04 OAMAGE TO FACILITY

?'rE Ot SCA>PTION NA l 8 LaJ 7 u9 l

10 80 8306240221 761124 i

PUBUC:TY PDR ADOCK 05000259 S PDR NA l M L

/ 89 80 AD;rT:GN AL F AC10RS

$ l1hc oil in the governor will be replaced periodically l 80 7 89 j

E1 7 80 .. 80 NAME:_ rHONC.

nGtLcmntn

- - - - . 4- * *

OWTlO/y .

' s . , },t

.s TENNESSEE VALLEY AUTHORITY

$ CH ATTANOOCA. TcNNESSEE 37401

• %p ,{

1. 1. /6-tM November 24, 1976 -

D b,

i Hr.NormanC.Moselef, Director I 'In Y U.S. Nuclear Regulatory Commission b 4A- b[O 3 Office of Inspection and Enforcament I Region II ,

230 Peachtree Street, NW., 8th Floor

1. S'"k G,; - ]..'

y Atlanta, Georgia 30303 h_eg \ /

/

Dear Mr. Mo6eley:

TENNESSEE VALLEY AUTIIORITY - BROWNS FERRY NUCLEAR PLANT UNIT 1 -

DOCRET NO. 50 -259 - FACILITY OPERATING LICENSE DPR REPORTABLE OCCURRENCE REPORT BFRO-50-259/7623 The enclosed report is to provida details concerning diesel generator D

, , that exhibited an errr. tic speed behavior under load during the performance

~! of a surveillance instruction. This report is cubmitted in accordance with Brovns Ferry Technical Spucifications Section 6. This avont occurred

. on browns Ferry Nuclear Plane unit 1.

1 Very truly'yours, .

i TENNESSEE VALLEY AljTHORITY l

11. S. Fox Director of Power Production Enclosure (3)

CC (Encloauro):

Director (3)

• Office of Itanageannt Information and Program Control.

U.S. Nuclear Regulatory Commicolon Washington, D.C. 20555

,, _ Director _(40)' _

• Offico of s Inspection and Enforcement U.S. Nuclear Reguintory Courr.inaion ,

Washington, D.C.

20555

.1ZOm, -

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