ML18283B485
| ML18283B485 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 08/06/1976 |
| From: | Fox H Tennessee Valley Authority |
| To: | Moseley N NRC/IE, NRC/RGN-II |
| References | |
| BFRO-50-296/762W | |
| Download: ML18283B485 (6) | |
Text
TO:
N.C. Moseley FROM: Tennesee Valley Authority Chattanooga, TN..
H.S. Fox gLETTER K)ORIGINAL QCOPY 0 NOTO8 I2 E D PUNCLASSIFIED PROP INPUT FORM
'NRC FoRM 195 U.S. NUCLEAR REGULATORY COMMI N
'<2-75)
I NRC DISTRIBUTION FoR pA'RT 50 DOCKET MATERIAL DOC KEQ4 UQBQ R FILE NUMBER XNCXDENT REPORT DATE OF DOCUMENT 8-6-76 DATE RECClVEO NUMBER OF COPIES RECEIVED DESCRIPTION Ltr.
trans the following......
PLANT NAIKi; Browns Ferry 8
3 ENCLOSURE Licensee Event Report (R.O.
/> 762) on 7-23-76 Concerning the control rod drive pump being removed to permit the installation of strain gauge instrumentation.......
(1 Signed Cy. Received)
ACKNOWLEDGED DO NQ1 -H,g]g0VE NOTE; IF PERSONNEL EXPOSURE XS INVOLVED SEND DIRECTLY TO KREGER/J,COLLINS RANCH CKEEF W
CYS FOR ACTION XC..ASST.:
W CYS CRS 16CYS Lee FOR ACTION/INFORMATION SAB 8-10-7 C PDR SEE 2
PC CHROEDER IPPOLITO iOUSTON OVAK CHECK RIMES
,ASE INTERNALD ISTRl BUTION ESCO MACCARY ISENHUT
'R OLLMER EJNCH GER J.COLLINS enise PDR:
Athens Ala.
XC:
EXTERNAL DISTRIBUTION CONTROL NUMBER 8087 NRC FORM 195 I2.76)
4, C,,
fg> r k
r >c>gyp,'
S
'<)
~
o P
~
~
~sg,,iy Wg'-
'I ~
q
'%1 N'
~
~ f yy'q' f-
~
~
~
+
$ 's<> ~i)
~
A
~
~
y, "r
lt l T ~ 4 f),'g A ~
"I I
~OQ)TIQy 6g O
lII
~)6-1916
~egulatotj ile Gy'.
r l
TENNESSEE VALLEYAUTHORITY CKATTANOOCeA. T 37401 DOCKOSD Auyurb 6s 1976 9
1ST6V 3
P(01I Seetfcte Ih. XToxman C, Mosey@~
D Dbc>el Clerk
. U.S. Wxclear ReyQatory C
n Office of Xnspection and.
Znfo'econ XX 230 Peachtrce Street, Rf,>. 8th Floor Atlantat, Ceorp&
30303 AIJG 9 l976 l
ueSS IIIICSSAKRE~@
COAIAIISS IOQ
Dear Ih'e,
NOB@Qp'e J
TQIGMH VAXZZ[AUTIIRXZ SROLKS ABBYXCXMFJMT KGZ 3-SOCKET Hoi $0 2g6 MCXLEX OPEHATXL7{r'ECTUE DPR 68 ~ REPORTABXIE OCcuxuZCZ REPORT amo-gO-'ag6/76m>
The cnclosecL rexlort is to provico Retails concondng the control rod drive pump which >ms remcnred. fran servico to Xtermit the installntion of strain gauge instnmentation on aelecteC fuel channels anl is subnd.tte6 in accordance td.th ApyemHx E to Regulatory GuMe 1.16> Revision 4s August 1975.
This event
'occurTecl on ~lfAB PQzzg KQclCar Plant uni'te 3o
'ery tnt pours~
5KGZSSEH VATifZKAUTHOBZK I, S, Peat.'rector of Power Production Znclosure (3)
CC (Enclosure):
&rector (3)
Office of~~t Xnformation and, Pl~an Contro1'.S, Bud,ear ReyQntory'mznission VashinIMn, D.C.
205//
Director 40 office of Xnsyection anl Znforcemnxk U.S. Qxclear RemQatoiy Cmmission Uashington, D.C.
20m An Equal Opportunity Employer
Il,'
A I
QA Tk);F
~
~
I I
ll I 1kjA"1 I
I h
la lf I Au k
I
~I 1
k Ik F'
\\
I I
A I
E
~
A A(
I'IA k
CONTROL BLOCK UCENSEE NAME A
L BIR F
3 7
89 14 1
~
6 LICENSE NUMBER 0
0' 0
0 0
0 0
15 REPORT (PL c PRINT ALLREQUIRED INFORMATION)
UCENSE EVENT TYPE TYPE 0
0 4 1 1
1 1
~01 25 26 30 31 32 REPORT REPORT CATEGORY TYPE SOURCE DOCKET NUMBER EVENT DATE REPORT OATE
[OD1jooN'T~
T L
0 5
0 0 2 9
6 0
7 2
5 7
6 7
8 57 58 59 60 61 68 69 74 75 EVENT DESCRIPTION Qpg On 7/23/76, the control rod..drive pump was removed fram service to permit the 80 7
8 9
~
80, tOD3]
installation of strain gauge instrumentation on selected. fuel channels.
Cn 7
89 80 lDOER]
7/27/76, Surveillance Instruction 4.3.A.2-d determined the control rod 7
8 9 80 t00j5
. accumulators to be inoperable due to low pressure without the requirements of
/06 LC033A2b being met (BFRO-50<<296/762 )
COMPONENT MANUFACTURER 7
8 9 work was a roved..
7 8 9 7
8 9 PAME SYSTEM CAUSE COMPONENT CODE CODE COMPONENT CODE SUPPUEA VOLATION R
D R
V E
N 0 0 8
0 7
8 9 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION
[0D8]
The requirement of LC033A2b was overlooked by plant personnel when the 80 80 '
80 OTHER STATUS 7
89 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION Q6 R
HA 7
89 10 PUBLICITY NL 7
89 7
89 FACILITY STATUS POWER
~OO O
NR 7
8 9
10 12 13 FORM OF ACTIVITY COATENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY Q~g
~Z I Z HA 7
8 9
10 11 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION, I113I ~00 0
2 NA 7
89 11 12 13 PERSONNEL INJURIES NUMBER DESCRIPTION t1I1j ~00 0
Hk 7
89 11 12 OFFSITE CONSEQUENCES 15 NA METHOD OF OISCOVERY B
44 45 46 NA 44 45 OISCOVEAY DESCRIPTION LOCATION OF RELEASE 80 80 80 80 80 80
, 80 80 ADDITIONAL FACTORS
~18 Although the control rods were not disarmed, with the CRD pumps off, the rod.
7 89 could not be moved.
7 89 80 00 NAME:
PHONE CPO est-607
(
~
'I