ML20129H812
| ML20129H812 | |
| Person / Time | |
|---|---|
| Issue date: | 03/30/1981 |
| From: | Sniezek J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| Shared Package | |
| ML20129H806 | List:
|
| References | |
| FOIA-85-304 NUDOCS 8507200458 | |
| Download: ML20129H812 (2) | |
Text
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PUBLIC RESULT!kG FROM ORuGRK ;a ; t og t i p,r . g '.'C,
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tcently issued h4C the requirements scree efechacee 4 cn engineering evaluation 4tial path for less of primary sne c,oel tossen tetsen c., air systes ta licensee found that the installed locati
- h. ant at its Plierts ,asu..,
clear.nsi,e,.po ie s Power.,. ..
!t ica. ssettom.
h sentscras (AretS) and drain valves.alternate red insertion (AAI) selof control enoid valve could cause iticn the sg% the opsn vent and drain e rea valves to thThe less of coolant cou ment drain tank and then to the rea t mt to 4lessgre pe* through the drive for 145inserted delves u co ldc or buitting be a The rate suso. of cter bull, ding men vent and drain valves. control red drives)pprominately 500 t ype (based This less rate is well within eased the by 4250 spethat would be itity of the high pressure coetant injection (NPCI thecapability loc ps of the of CR0 the reacter pumps to core isolation maintai coolin h eter the
) system.
g (RCIC) system wou,ld n level.
ottee nate sg sn red insertion installation was completed refueling outage ending in Isay 1900. at the Pilgets gWE emit Pac todaaring the airt>y that provided heaser the t>ackup supplying scrasthe
. valve scras valvesThe installation inserting 4 reccter protectionthe control systee.rods in the event s, andofit provides This function a means is 10 arcarently failed to confireThe testing of the ARI installation atan ATW5 that inc vent and drain valve function.
p ing identification bcensee reviewed plant procedures of the potential t path for les t ps could be completed, immediate o assure that operatar until syntesactions modift-sdofriprimary caelant.
u ng an 1 include closin0 the scram discharge It is noted ventinstr. menta }
tin 80 17 and the instrumentedtevolume l header in response to
' or operator to the presence evel ow of reacter coolant tches shov18 alert fe11 the oulag ARI actuatten, itensee modified the syntes during a sch d l (ase of A41 theactuation.
scras discharge volume vent e u ed and destin Febryary, 1981 outage a valves to close in the
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