ML20086E001

AO 73-23:on 730802,gamma Radiation Monitor on Perimeter Fence Became Inoperable.Caused by Power Supply Associated W/ Monitor Failing,Causing Immediate Downscale Indication. Efforts to Determine Cause of Failure Currently in Progress

ML20086E001
Person / Time
Site:	Vermont Yankee
Issue date:	08/03/1973
From:	Riley B VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20086E000	List: ML20086D998 ML20086E001
References
AO-73-23, VYV-2912, NUDOCS 8312060008
Download: ML20086E001 (2)

Text

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N T') VERMONT YANKEE NUCLEAR power CORPOR ATION

v.aU SOVCNTY ScVCN OftOVE STRICT RUTLAND,VtuofCNT 05701 yyy.2912 ""W toe P. O. 9 0'< 157 venscw, vcagowT esssa Augns: 3, 1973 Unitad Stataa Ato.cc Ecstgy Oc:m.iesion Lirectorate of iegolatory Operations, Region 1

631 Park menra iting of Pruosis, Pennsyl tacia 19405 F2 PEP.E1C33, Operating Licenaa D?R4G Dockst 1% 30-171 ,

Abnormal Occurrecce Pa. AO-73-23

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As defited by Teichaical Specifications for tha Vermont Yankaa h'uclear Pwsr .ctatico, Bsetion 6,7.151, wt are reporting tbs following Abnomal Occurretes an A0-73-23 sci ecofinicg our tel::pbcn: :co.artstion with yowr offica . .

i At 2330 or. A:Jguat 2,1973. ths net sam.a vsdiatic: mit n on tha i parineter fsota became in.) paral 19 B.icte this inat enne:tstiso is ::qcited 4

3 at all c! mea sa a Limiting Conditica for Operation hy Ta hni al Specifloaciens, 3settor, M 4 J , a , orbrly plant abet 4cvn was initisted.

'; Initial inc23 igatica ic.!1c>ated that tr.a power espiy sase:iatt! .

witt, the mcair.or had Isited cawing an inanedli 4 downJesie In dic-2 tion.

Et' forts to daterm. ice the c4 ase :f th? pcVer supply failure ne ;u:reatly in prograae,

<, Tha plant will be fu a shethvn tenditic: this & var.ing.

3 Very rvly yours,

!' VEM0UT 7AW2B WO1216 PNE Cf5?CBATIJF OQ t.sY OU &

,' 3rs.dEcr.1 W Riley )

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o 8312060008 730809 / -

PDR ADOCK 05000271 f <t-S PDR c

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Licensee: ont Yankee Nuclear Power Corporati:

11. D. Thornburr, Dart Docket No.. 50-271 1'

Chicf, FSSEB i-A0-73-23 '

j, Abnormal Occurrence:

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l RO:llQ (5) j: DR Central Files (1) out The attached report from the subject licensee is Regulatory Standards '3)

Dir. of Licensing (13

,t foruarded in accordance with RO Mnnunt Chnnter 10".

T o cn. ...n3. ,- moins RO F1les y, eu Ano The action taken by the licensee is considered i Central Marl & Files l' rut appropriate. Followup will be performed during I

!i lI the next insnection n's annropriate. - Confoc of le f i O PA '.N ame a n d i,,ist) piuAans

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the report have been foruarded to the PDR, Local

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. R. T. Carlson, Chief PDR, NSIC, DTIE and State representatives. The

. Facility Opc' rations B ranch licensee vill rubmit a 10 day written report to PMolti ha DATE 8/8/73 Licensing.

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