ML19326C041
| ML19326C041 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 04/22/1976 |
| From: | David Williams ARKANSAS POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML19326C024 | List: |
| References | |
| NUDOCS 8004180721 | |
| Download: ML19326C041 (4) | |
Text
LICENSEE EVENT REPr T c.
CONTROL BLOCK:l l
l l l l
l (PLEASE PRINT ALL REQUIRED INFORMATION) 1 6
NAME
. LCENSE NUMBER E
TYPE l Al Rl AlR lT l1l l 0 l 0 l-l0 l0 l 0 l 0 l 0 l-l0 l 0l l4 l 1l1 l 1l1 l l0l1l i
7 89 14 15 25 26 30 31 32 CATEGORY P
SO DOCKET NUMBER EVENT OATE AEPORT CATE O 1 CONT l l
l l O ! 5 l 0l-l 0l 3l1 l3 l l 0 l 4 l 0l 8l 7l6 l l 0 l 4 l ? ! 2 l 7l6 l 7 8 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION HE l Tucive hydraulic shock suppressors fluid reservoirs were found empty. None of the l
7 89 80
$ l twelve were considered inonerable.
7 89 Previous leaks hat e been noted. (50-313/76-5) l 80 8I I
7 89 80 DE I l
7 89 80 EI I
7 89 pnus 80 0E CODE COMPONENT CODE M
R VOLATON O
l 2l 2l O l11 l A l Nl Gl E l R l W
l Il 210 l 71 d
7 89 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION DE l Leakage at gasket.
ITT Grinnell Fig. No. 200. Gaskets and "0" rings will be replaced l 7 89 80 UE l with ethylene propylene raaterial. Original gasket material was polvurethane.
l Z 89 7
80
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sTA US
% POWER OTHER STATUS O SCOVERY DISCOVERY DESCA@ TON 3
U l 0l 0l 0l l NA l
lb l l
NA l
7 8 9
10 12 13 44 45 46 80 ACTMTV CONTENT AELEASEO OF RELEASE AMOUNT OF ACTMTY LOCATION OF RELEASE 3E tzJ LzJ l
NA l
l NA l
7 8 9
10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTON j
H I nl nInI LIJ l
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i 7 89 11 12 13 80 PERSONNEL INJURIES NUMBER DESCRIPTON DE 1 01 0101 1
NA l
7 89 11 12 80 OFFSITE CONSEQUENCES 39 I m
l 7 89 go LOSS OR DAMAGE TO FACluTY TYPE DESCR@ TON bI NA l
1 7 89 10 80 PUBLICITY
,l b!
NA
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7 89 80
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ADDITIONAL FACTORS
,j ra
't" 8 9 80 nm 1 8 00418 0 7 M 7 89 80 NAME:
Dnnini II. Fli llinms PHONE.
(501) 371-4192
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' Reportable occurrence Report 31 50-313/76-5 2.
Itcpo rt Date: 4/22/76 i,
- u. ciarrcnce lial c:
4/8/76 4
1aci1ity: Arkansas Nuclear One-Unit 1 Russellville, Arkansas 72801 5.
Identification of Occurrenec:
Ilydraulic Shock Suppressors empty Fluid Reservoirs 6.
Conditions Prior to Occurrence:
Steady-State Power Reactor l' owe r 0
WLh llot Standby Not Output 0
We Cold Shutdown Percent of Full Power 0 i
Refueling Shutdown X
Joad Changes During Routine Power Operat ion
(
Routine Startup Operation J
Routine Sluitdown Operation Other (specify) l 1
7.
Description of Occurreng:
~;
1 Twelve hydraulic shock suppressors fluid reservoirs were found empty.
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Attachuent "C"
!! arch 23,.1976 NSP-10, lle y. 4 l' age 2 of 4
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{
!!ctiortable Occurrence I:cport No.
50-313/76-5
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- 8. L ilesignat ion o f Appa rent Cause.o.l'..O.c.c..u.r.renec:
llesign L,,,
procedure j_
Minn fac ture IJninsuai Service Condi Lion
~ ~ ~ ' ' ~
including linvi ronmental Installation /
Construction Component Failure Ope rato r.
Other (specify)
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i e
i 9.
Analysis of Occurronec:
Loss of fluid in a reservoir does not make a suppressor inoperable but air in the suppressor will reduce its effectiveness. There has 4
been.no evidence of abnormal' pipe movement thus no hazard to the health end safety of the public.
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i AtIachm nt "(."
ttirch 23, 1976 flSP-10, Rev..I page 3 or a I
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!<cportable Occurrence lleport IJo.
50-313/76-5 10.
Corrective Action:
All reservoir gaskets and "0" rings will be replaced with ethylene propylene material which should correct the problem.
If this proves I
unsatisfactory the reservoir will be replaced with a new type reservoir.
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8 i l i
I 11.
Failure Data:
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Several leaks have occurred in the past but not to an extent that the sup,ressors were felt to be inoperable.
Suppressors are manufactured by Grine11. -
Fig. No. 200 s
gasket material -polyurethane i
f i
1
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/ttachment "(:"
March 23, 1976-NSP-10 Rev. 4 Page.1 of 1
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