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

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SE tcENSE NuMsEn t t 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 l0l3l O1 7 89 14 15 25 26 30 31 32 CATEGOAv TY OoCKET NUMBEA EVENT DATE REPOAT OATE

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68 63 74 75 80 EVENT DESCRi? TION Q l During the performance of a surveillance instruction, dieseI generator D exhibited I

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

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

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

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

80 7 89 EE IWoodward covernor model to-B10 actuator.

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80 7 39 LOSS 04 OAMAGE TO FACILITY

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80 7 80 NAME:_

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.s TENNESSEE VALLEY AUTHORITY CH ATTANOOCA. TcNNESSEE 37401

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November 24, 1976 b,

i Hr.NormanC.Moselef, Director I

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b[O 3 U.S. Nuclear Regulatory Commission b

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Office of Inspection and Enforcament I

Region II y

230 Peachtree Street, NW., 8th Floor G,;

Atlanta, Georgia 30303 h_eg \\/

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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

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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 Inspection and Enforcement s

U.S. Nuclear Reguintory Courr.inaion Washington, D.C.

20555

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