ML20084T858
| ML20084T858 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 12/08/1976 |
| From: | Fox H TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| LER-BFRO-50-259-762, NUDOCS 8306240211 | |
| Download: ML20084T858 (2) | |
Text
"
e LONinOL CLOCK:l l
l l
l (PLEATE P T Alt REQUIRED INFCRM ATION)
- iyN TA$c
TYPE tctNst NuvotR
{ l A lL l B l Rl Fl 1l l 0l 0l-l0 l 0 l 0 l 0 l 0l-l 0l 0l l4 l 1l 1! 1l1 !
!0!3l 7 09 14 15 2S 26 30 31 32 CAT (CCAf TvP u CE DOCKET NU*/P( A (VENT DATE RCPORT OATE QCOwT l l
l W W l 0l 5l0 l-l Ol2 l5 l9 l l 1 l I l 2 l 2 l 7 l 6.l l
l I
7 6 57 60 63 60 U1 60 69 74 75 60
[ VENT OESCRIPTION Q] During the performance of a scheduled maintenance test. ene nenre rivciif e breaker l
Q l on dicac1 generator B was found inoperable.
The second start ciretii r ime enlocent 7 89 60 replaced. l 7
09-i h l and was operable.
The other three fleceln vere orornhin_
'rk n kvnane o,g t>3 (BFRO-50-250/76?51-7 89 h l All engineered Safety systems were available on units 1 and 2.
EJ 7 89 l
hl 60 7 89 p,wg E
CODE COMPC*.FPJT CODE S
R M
CU R VOLATON lElBl O
! C! El Tl R l R ! M!
! c: l "4 l A ! r;!
7 80 10 11 12 17 43 44 47 48 CAUSE OECCR;PTION power to one diesel l
g l A square D company 30 amp breaker no. L25V909 failed to supply 60 7 H9 The brenker une Q l start circuit because of a broken stud holder on A connector.
60 7 89 l
@ l replaced.
METHOO OF F AC(it y 0:SC0vinf DESCAiPTION STATUS
. % POWEA OTHER STATUS DISCO vEny l h]
NA h
W l 0l 4! 0 l l MA 80 7 8 9
10 12 13 44 45 46 LOCATION OF AELEASE P LE S O
ELLASE AMOUNT OF ACTivtTY ll b
dl NA l
NA 80 7 0 0
10 11 44 45 PERSONNEL EXPOSURES NUMD(R TYPE DE SCHiPfiON 1
l 010 l 0 l lEl l
NA EO 7 09 11 12 13 PERSONNEL INJURIES NUV0f A 3E C A PTION ll l0 l 0 l 0 l l
NA 80 7 89 11 12 OFFSITE CONSECUENCES l
NA Ql 60 7 89 LOSS OR OAMAGE TO FAC:LITY Tyrf OCSCW T CN l'
ll l Aj l
NA 7 o9 to 8306240211 761208
$DRADOCK 05000259 puoliCtTy PDR
.NA
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7 09 ADDITIONAL FACTORS l
Thin in a random failure.
7 09 60 7 OD PHONE:
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p 4 TENNESSEE VALLEY AUTHORITY e
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CH ATTANOOGA. TcNNESQcc 37401
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'No.d>
December 8, 1976 i
Mr. Norraan C. Ifoseley, Director U.S. Nucicar Reguintory Cocimission Office of Inspection and Enforcement Region II 230 Peachtree Street, NW., 8th Floor Atlanta, Georgia 30303
Dear Mr. Hoseley:
TENNESSEE VALLEY AUTHORITY - EROWS FERRY NUCLEAR PLA'IT UNIT 1 -
DOCKET NO. 50-259 - FACILITY OPERATINC LICENSE DPR REPORTABLE OCCURRCICE REPORT EFRO-50-259/7625 The enclosed report is to provido details concerning one start circuit breaker on dicac1 generator B that was found inoperable during the performance of a scheduled maintenance test. This report la submitted in accordanco with Brouns Ferry Technical Epecifications Section 6.
This event occurred on Browns Ferry Nuc1 car Plant unit 1.
Very truly yours, TENNESSEE VALLEY AUTHORITY 0
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4,,f,f, f' h,.,, ;
j N
H. S. Fox
%y fjg Director of Power Production
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y U.5,n ; ' ldi]%,N0j Enclosure (3) k,,
ts i hD CC (Enclosuro)
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,W Director (3)
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Office of Management Information and Program Control U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Director (40) l Office of Inspection and Enforcement U.S. Nuclear Regulatory Connaission Washington, D.C.
20555 i
P An Equal Opportunity Employer
.