ML20058L214
| ML20058L214 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 02/07/1975 |
| From: | Nolan L NORTHERN STATES POWER CO. |
| To: | |
| Shared Package | |
| ML20058K743 | List: |
| References | |
| LER-LER-750207-02, LER-LER-750207-2, NUDOCS 9105130401 | |
| Download: ML20058L214 (1) | |
Text
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- ENSEE EVENT REPORT l
l l
l l
(pLEASE PRINT AL1 REQUIRED INFORMATION)
CONTROL BLOCK:l 9
1 6
LCENSEE LCENSE EVENT Nauf LCENSE NUMBER TYPE TYPE 01 lM lN lMl Nl Pl Il l 0] 0l-l 0l 0l 0l 0l 0l-l 0 l q l4l1l1l1l1[
l0 l1 l 7 89 14 15 E5 2S 30 31 22 T7P DOCKET NUMBER EVENT DATE REPORT CATE CattGORY s
[c11jccmT l p l nj iTl l Ll l0 l 5 l 0 l-0 l2l
~
_ill.~l~j l 'l :l 0 l
! ~ ' : l 7 8 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPT:PN gg l hhile performing a local leak rate test the Outboard Main Steam j
7 89 80 32 l Line Drain Isolation valve, MD-2374, was found leakine in excess j
BO 7 89 Ql of the acceptance criteria for local leak rate tests. The redundant l
7 89 80 gl isolation valve was operable.
Similar c-at occurred during Spring refueling l
~
80 f
cutage 1973. Replace valve (A0 263/75-1).
80 7 89 mE SYSTEM CAUSE COMPONENT COMPONENT CDDE CODE COMPONENT CODE
'~ M A MANUF ACTURE A VOLATON O
l Sl Dl lEl l V I A l Ll Yi El 1 Al l AI 3l 9l 5j j Yl 7 89 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION gl NA.
Valve too radioactive to inspect.
Suspect scratches on seat and gate l
o l
3 inch-600 psi gate valve, pressure seal type, Anchor ' Calve Company, DWG No. 2264-5.0 8
7 89 l
7 89 go 1o l Replaced valve and retested satisfactory.
l METHOO OF FActuTv STATUS
% POW E A CTrER STATUS CISCO VE AY C'SCOVE Av CE SC A PTION l,1.11J lH l l 0l 01 0l l NA l
lBl l NA l
7 8 9
10 12 13 44 45 46 eg ACT IT Y CONTENT AELEASED OF AMOUNT CF AC?rv!TV LOCATION OF AE LE ASE' 12 lE l ALLEASE l NA l
lNA l
7 8 9
10 li 44 45 go PERSONNEL EXPOSURES NUMBE R TYPE CESCRIPTION 13 lnl0l0l U l NA l
7 89 11 12 13 go PERSONNEL INJUAiES lfc"~"9CN l
' UME E A M
l010 l 0 j 1
7 89 11 12 60 OFFSiT CONSEOUENCES s
3I
^
l 7 89 ao LDSS CA DAMAGE TO FACILITY voE C E SC A *T 'ON b
I NA l
16 7 89 10 80
- UBLICITY I
$I 9105130401 750210 7 s9 CF ADDCK 05000263 80 ADDITIONAL FACTORS h!
NA l
7 89 go 19 }
l 7 89 go L. L. Nolan 612/295-5151 pgoyg.
NAME:
GP f) R81,A67