ML20084U343
| ML20084U343 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 07/26/1976 |
| From: | Fox H TENNESSEE VALLEY AUTHORITY |
| To: | Moseley N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML20084U346 | List: |
| References | |
| LER-BFRO-50-260-768, NUDOCS 8306280638 | |
| Download: ML20084U343 (2) | |
Text
-
i V
LICENSEE EVENT REP CONTROL 8 LOCK:( l l
l l l
l
[PLEASE PRINT ALL REQUIRED INFORMATION]
1
,6 FAME tscENSE NUMBER YPE TV l Al Ll Bl Pl b 2l l 0 l 0l-l0 l0 l 0 j 0 l 0 l-l 0l 0l l 4l 1l 1l 1l 1l l0l1l O
7 89 14 15 25 26 30 31 32 CAf f GOHY T
RC DOCrET NUMHER EVENT DATE REPORT OATE O
CON'T l* l *l W W l 0l 5l 0l-l0 l2 l6 l0 l l 0l 7l 0l 9l 7l 6l l
l l
l l
l l
7 8 57 58 59 60 61 68 69 74 75 80 EVFNT DESCRIPTION DE lDuring a routine cleaning of the neutron monitoring battery 2A, the battery was made l
7 89 80 IE l inoperable when a connector was accidentally broken off a cell post.
Although all l
/ 89 80
@ l rods were already fully inserted, this resulted in a loss of SRM channels A and C l
7 89 80 UE land initiated a reactor scram signal (BFRO-50-260/768) l 7 89 80 hl l
7 89 we 80 E
CODE COMPONENT CODE SUPSU R MANUF R
VOLATON SE lE l C l W l Bl Al 'Il T l R l Yl U
lC l1 l7 l3 l W
7 89 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION DE l A C and D batteries model 3DCU-7 had a cable connector break off of a cell post.
l 7 89 80 DE I h batterv wan reconnected temnorarily and on 7/13/76 replaced with a new battery.
l 7 89 80 DE l l
STA S
% POWEH OTHER STATUS 06COVERY OfSCOVERY DESCR@ TON l0l0l0l l N/A l @
l N/A l
7 8 9
10 12 13 44 45 46 80 ACTMTV CON T E N T HELEAS O Of RELEAGE AMOUNT OF ACTMTY LOCATON OF RELE ASE h
Wl N/A l
l N/A l
H 7 8 9
10 11 44 45 80 PERSONNEL EXPOSURES NUMBE R TYPE DE SCR@ f 0N DE l 0 l 0l 0l Wl N/A l
7 89 11 12 13 80 PERSONNEL INJUAIES NUMBE R OESCRWTON H l0l0l0l l N/A l
7 89 11 12 80 OFFSITE CONSEQUENCES EE l 7 89 N/A l
80 LOSS OR DAM AGE TO FACILITY T v Pf DESCRWTON
@Wl N/A l
7 89 10 80 PUBLICITY DE l N/A l
/ 89 80 8306280639 760726 ADDITIONAL FACTORS PDR ADOCK 05000260 l
N/A S
PDR l
10 7 89 80
]l N/A l
7 89 80 NAME-PHONE:
sPo eeT.ser
w%
po 9-yy4
+
TENNESSEE VALLEY A ORITY g
E g
'g CHATTANOOGA. TENNESSEE 374o1 g
j s.+
s N b,K July 26, 1976 g g
w
.s f~, Eub h.., oC, % n j/d"yL2919N'$
nr. narcan C. noscley, Director I I
3,,,$m,, mex^L U.S. Unclear Regulatory Co:aaission 8'
Office of Inspection and Enforce.acnt c
Region II 9
4 230 reachtree street, Irrt., 8th Floor
//
'P d'
Atlanta, Georgia 30303 A
Dear Mr. Moscley:
TI2EIE33E3 VALLL'l AUTHORITY - BROUIB FERHT IRJCLEMI PIAIIT UNIT 2 -
DOCKET no. 50-260 - FACILITI omMTIIU LICEC3 DPR REPORTABLE OCCURREUCEREPORTBFRO-50-260/76&T 21e enclosed report is to provide details concernin6 neutron conitoring battery 21 uhich 1:aa cade inoperable when a connector was accidentaHy trien off a een post curi.v, a roncine cleaning and is submitted in accordance with Appendix U to Regulatory Guide 1.16, EcVision 4, August 1c/l5 Mais event occurred on Browns derry nuclear Plant unit 2 Very truly yours, TEIREDE VAIJRf AUTi10RITY H. S. Fo:t Director of Ibver IYoduction s
Ts Enclosure (3)
CC (Diclosure):
Director (3)
Office of ihna:;cment Information and Program Control U.S. Uuclear Ec;;ulatory Cmaission Unshint; ton, D.C.
20555 Director (40)
Offica of Inspection and ihforecment U.S. Huelcar Ecculatory Co= mission Washington, D.C.
20555
,g copy RENT REGIOWM A An Equal Opportunity Employer q
O