ML19317F838
| ML19317F838 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 09/29/1977 |
| From: | Mattimoe J SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | |
| Shared Package | |
| ML19317F827 | List: |
| References | |
| NUDOCS 8002210584 | |
| Download: ML19317F838 (1) | |
Text
/
UCENSEE EVENT REPORT 7d
~
y CONTRCL BLCCK:l l
l l l l
l (puASE PRIM AU. REQUIRED ifJFORMAT10N)
(
)
1 6
U/
"#7!'
'7v',"e' ~
uCENSE NuM.ER o
I cl A l R l S l S l 1l l 0l 0l-l0 l 0l 0l 0l 0l-l0 l0 l l 4 l1 l1 l1 l1 l l0l1l 7 89 14 15 25 28 30 31 32
" Yy EA$
CCCXET NUMSER EVENT QAft REPORT QATE cATEcoRy T
O CCN'T l Pl 0 l W l Ll l 0l 5l 0 l-l 013 l 1 l 21 l 0l 8l 2l 9l 7l 7l l0l9l2l7l7l7l 7 8 57 58 59 SO 81 68 69 74 75 80 EVENT DESCRPTON g lThe refueling interval functional testing of safety system hydraulic snubbers was l,
7 89 80 r" gg l started on August 29, 1977. The first two snubbers in the sample of 10 failed to meet l" 7 89 80 gg l lockup velocity criteria. Management decided to test all safety system snubbers l
7 89 80 -
3E l rather than the additional 20% required af ter 2 failures. A total of 35 out of 81 l -
7 89 80 h lfn41pA en mooe e%. noronesneo av4
- w4 e run 77_1 m 80 - :
7 89 pang "cEs" E'
CCMPONENT CCOg MWACn#ER VMATON O
lXl Xl lH l A l N j GlE lR ]
lAl lB 21110 lNl
/,'
7 89 10 11 12 17 43 4L 47 48 I
2 0
7 CAUSE CESCRPTION g lFollowing completion of the testing, all failed snubbers will be disassemble ~d, l,
7 89
' 80
- Q l examined for possible causes of failures, rebuilt or adjusted, and retested.
l, 9
- 80. >
I l4 s
% POWER OTHf,M STATUS QSCCVERv OtSCoVERv CESCnipTICN L"]
Iol of of I NA l
{,B ]
l NA l
1 7 8 9
10 12 13 44 45 48 80 nTEo oi"EEE I'
aucuMT or ACTmTv LoCATON CF RR5ASE 8
LzJ LzJ l
NA l
l NA l
7 8 9
10 11 44 45 80-
~
PERSCNNEL EXPOEURES NUM8tR TYPE DESCRIPTION DE I 0l 01 01 l.zj l
NA l
7 89 11 12 13 80 PERSONNEL INJURIES NUM8tR QESCRIPTION BE l ol ol ol I l
a 7 89 11 12 80 OFFSITE CONSEGUENCES 35 l Minimal to none.
l 7 89 80 LOSS OR DAMAGE TO FAC UTY TYPE DESCRIPTION
@WI n
I 7 89 10 80 PUBUCITY Ql Local newspapers and wire services notified.
l 7 89 SO
=
80 02 210 NF ADDITONAL FACTORS l
I-89 80 MI I-7 89 60 7 R. W. Colombo /F T. Eisenhuth PHONE:
(916) 452-3211 NAMr.
GPO est. set w