ML18283B042

LER 1976-005-00 for Browns Ferry Unit 2, HCU 30-31 Was Found Incapable of Being Scrammed Due to Valves 2-85-612 & 2-85-615 Being in the Closed Position

ML18283B042
Person / Time
Site:	Browns Ferry
Issue date:	07/02/1976
From:	Fox H Tennessee Valley Authority
To:	Moseley N NRC/RGN-II
References
LER 1976-005-00
Download: ML18283B042 (4)

Text

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TENNESSEE VALLEY AUTHORITY O

CHATTANOOGA. TENNESSEE 37401 C

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July 2~ 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

Dear Mr. Moseley:

TENNESSEE VALLEY AUTHORITY - BROWNS FERRY NUCLEAR PLANT UNIT 2-DOCKET NO. 50-260 - FACILITY OPERATING LlCENSE DPR-52 - REPORTABLE OCCURRENCE REPORT BFR0>>50-260/765 The enclosed report is to provide details concerning HCU 30-31 that was found incapable of being scrammed. due to valves 2-85-612 and 2-85-615 being in the closed position and. is submitted in accordance with Appendix E to Regulatory Guide 1.16, Revision 4, August 1975. This event, occurred on Browns Ferry Nuclear Plant unit 2e Very truly yours, TENNESSEE VALLEY AUTHORITY

~78</'CE S. Fox Director of Power Production Enclosure (3)

CC (Enclosure):

Director (3)

Office of Management Information and, Program Control U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Director (40)

Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C. 20555 An Equal Opportunity Employer

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+PENSEE EVENI REPORT ~

(PLEASE PRINT ALL REQUIRED INFORlVIATION7 1 6 UCENSEE UCENSE EVENT NAME LICENSE NUMBER TYPE TYPE toa1] A L R R F 2 0 0 0 0 0 0 0 0 I4 1 1 1 1 ~01 7 89 14 15 25 26 30 31 32 REPORT REPORT DOCKET NUMBER EVENT DATE REPORT DATE

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CATEGORY TYPE T

SOURCE L 0 50 0 2 6 0 0 61 9 76 7 8 57 58 59 60 61 68 69 74 75 80

.EVENT DESCRIPTION Qpg HCU 30-31 was found incapable of being scrammed due to valves 2-85-612 and 7 8 9 80 m 2-85-615 being in the closed position. Interim Technical Specification 4.3.C 7 89 t00j4 reauires valves 2-8 -612 and 2-85-615 for each HCU to be open at all times.

7 8 9 80 K5 (BFRO-50-260/765) 7 8 9 80

~06 7 8 9 FAME 80 SYSTEM CAUSE COMPONENT COMPONENT SUPPLER 7 8 9 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION

[008] Incorrect verification of required valve position caused, by personnel 7 8 9 80

[ODg error.

7 8 9 80

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7 89 7

[411]

8 FACIUTY STATUS

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'POWER 0

12 13 RA OTHER STATUS 44 METHOD OF DISCOVERY B

45

'A 46 DISCOVERY DESCRIPTION 80 FORM OF ACTIVITY. COATENT RELEASEO OF RELEASE AMOUNT OF ACTNITY LOCATION OF RELEASE t112 z z ma 7 8 9 10 11 , 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION

~13 ~00 0 Z RA 7 89 11 12 13 80 PERS'ONNEL INJURIES 7

~I4 8 9 0 0- O'IA 11 DESCRIPTION 12 80 CONSEQUENCES'FFSITE siA Qgg 7 89 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION Q1] Z HA 7 89 10 80 PUBUCITY 7 89, 80 ADDITIONAL FACTORS Qjg NA.

7 89 80 7 89 80 NAME: PHONE:

QPO 88 I 8874

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