ML18283B459

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Licensee Event Report Concerning the RCIC That Failed During a Surveillance Test to Control Speed Because of a Broken Wire to the Magnetic Speed Sensor in the Governor Control Circuit
ML18283B459
Person / Time
Site: Browns Ferry  Tennessee Valley Authority icon.png
Issue date: 10/18/1976
From: Fox H
Tennessee Valley Authority
To: Moseley N
NRC/IE, NRC/RGN-II
References
Download: ML18283B459 (6)


Text

NBC FoAM 195 I2.76 I U.S. NUCI EAA REGULATORY MISSION NRC DISTRIBUTION FoA PART 50 DOCKET MATERIAL DOCKET NUMOEA 50-296

~<5:lILE NUMOEA INCIDENT REPORT'r.

Norman C. Moseley FROM:

Tennessee Valley Aughority Chattanooga, Tennessee H. S.

Fox DATE OF DOCUMENT 10/18/76 DATE RECEIVED 10/29/76

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~ +ORIGINAL QCOPY DESCAIPTION C3 NOTOR IZE D UNCLASSIFIED PROP INPUT FORM j ENCLOSURE NUMBER OF COPIES RECEIVED One signed'tr.

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  • ACKNOWLEDGED.

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'O NOT H,ZMOVE Licensee Event Report (RO 50-296/7611) on 10/1/76 concerning RCIC failing to control speed because of a. broken wire to the magnetic s'peed sensor in the governor control circuit.

C PLANT NAME Brown Ferry Unit f53 NOTE:

IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY'O KREGER/J

.COLLINS BRANCH CHIEF:

W CYS FOR ACTION LIC..ASST.:

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Kniel Lee FOR ACTION/INFORMATION 11 2 76 RJL REG FILE NRC PDR I-It: E 2

KEPC" 8GHRGEDER IPPOLITO HOUSTON NOVAK CHECK GRIMES CASE INTERNAL'IST RI BUTION

'ANAUER TEDESCO MACCARY EISENHUT BAER SHAO VOLLMW HJNCH KREGER J. COLLINS LPDR: Athens Ala.

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EXTERNALOISTRIDUTION CONTROL NUMOER NRC I OIIM IOII {2 70I

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'~~e-19>e TENNESgL~ VALLEYAUTHORITY CHATTANOOGA. TENNESSEE 37401 October 18, 1976 Mr. Norman C. Moseley, Director U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region II 230 Peachtree

Street, NW., 8th Floor Atlanta, Georgia 30303

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TENNESSEE VALLEY AUTHORITY - BROWNS PERRY NUCLEAR PLANT UNIT 3-DOCKET NO. 50-296 - FACILITY OPERATING LICENSE DPR-68 REPORTABLE OCCURRENCE REPORT BFRO-50-296/7611 The enclosed report is to provide details concerning the RCIC that failed during a surveillance test to control speed because of a broken wire to the magnetic speed sensor in the governor control circuit.

This report is submitted in accordance with Browns Ferry Technical Specifications Section 6.

This event "occurred on Browns Ferry Nuclear Plant unit 3.

Very truly yours, TENNESSEE VALLEY AUTHORITY Ol H.

S. Pox Director of Power Production 6 Enclosure (3)

CC (Enclosure):

Director (3)

Office of Management Informat

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11,o14 and Program Control U.S. Nuclear Regulatory Commis on Washington, D.C.

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Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.

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LICENSE TYPE 25 26 REPORT OA'TE 74 75 60 89

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LICENSES EVENT NAtAE LICENSE NUMBER TYPE Jog A'

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89 14 15 30 31 32 REPQRT REPORT CATEGORY TYPE SOURCE OOCKET NUMBER EVENT OATE

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8 57 58 59 60 61 68,69 80

'VENT OESCRIPTIOiN Durin a surveillance test RCIC failed to control s eed because of a b ke 7

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S wSTE!A CAUSE

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'OOS COMPONENT CQQE LccEJ R

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10 11 12 17 CAUSE 0"SCRIPTION I The flexible conduit connection to Ltob e PRE E COtAPQtlEttT SUP PUM the R

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~l 47 VQLATiott 48 80 80I 7

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8 OTHER STATUS AMOUNT OF ACTIVITY NA.

aiTA OFFSITE CONSEQIJENCES NA 9

FAC'UTY STATUS POWER Loaoj 9

10 12 13 FORhl GF ACTIVITY COiNTENT

~ 'E'EASEO OF REI.EASE

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10 11 L E"" O~.'NEI. EXPOS JRES

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I1 12 13 PERSONNEL INJURIES NUVIBER OESCRlPTIOi I La.ba LoJ METHQO OF OISCOVERY 44 45 46 44 45 OISCOVERY OESCRIPTIQta LOCAT;ON CF RE EASE era err i

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'I lOSS OR OAMAGE TO FACILITY

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9 10 PUBLICITY NA AOOITIONAL FACTORS Repairs were made acd RCIC e crated satistactcril I

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