ML20042B236

LER 82-004/03L-0:on 820216,discovered That Continuous Environ Air Sample Not Obtainable at Station AT1.4 Per Tech Spec.Caused by Solder Lug of Std 125V-8A Power Toggle Switch Parting at 90 Degree Bend.Faulty Switch Replaced

ML20042B236
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	03/16/1982
From:	Murphy W VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20042B233	List: ML20042B232 ML20042B236
References
LER-82-004-03L, NUDOCS 8203250125
Download: ML20042B236 (1)

Text

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(7 771 LICENSEE EVENT REPORT LER 82-04/3L

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EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l o 12 l l During the weekly environmental air sample collection performed on 2/16/82, it was I

g,3, l discovered that a continuous sample was not obtainable at Station AT1.4 as required by l

g,,j ;T. S. Table 3.9.1. The elapsed time meter indicated that power to the unit failed 12.2 l

,g,g, , hours after sample initiation. Since plant stack releases during this period were belowl g p ; detectable levels, it is concluded that this incident was of no consequences to the l lgy,; g ealth h and safety of the public. There were no previous occurrences of this type l l0lHl l 80 7 6 9 SiSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUSCODE COVPONENT CODE SU8 CODE SU8 CODE lol9l

/ 8 l B l B lh lE lh l Alh lC lK lT lB lR lK lh Wh l Zlh 9 10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION EVENT YE AR REPORT NO. CODE TYPE NO.

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_ 21 22 23 24 26 TA E ACT CN ON PLA T 'ET HOURS S 8 IT FC B. S PPLIE MANUFACTURER lA l@lJ4 Al@ lJdZ l@ lZl@ l 0 l0 l0 l0 l (H_]@ udh [L_j h l44X l 9 l 9 l947l @

JJ 36 3/ 40 41 42 43 CAUSE DESCPIPTION AND CORRECTIVE ACTIONS h FlT] lThe solder lug of a standard U5V-8A power toncle switch ras r>arted at a 90 degree bend,l

3 ,ij lwith no evidence of arcing. A new sample was started immediately by insertinn the 1

,, , , , l vacuum pump power lead in an unswitched receptacle. The faulty switch was later re- l

,,,,, ;placed with a new switch. l I

l i 141 l 80 7 g 9 ST US  % POWER OTHER STATUS iSCO RY DISCOVERY DESCRIPTION NA Technician Observation l l1 l 58 l1 l E l@ l101l 0 l 012l@l 44 l lB 45 l@l 4G 80 7 11 ACTIVITY CONTENT RELEASED OF RELE ASE AMOUNT OF ACTIVITY LOCATION oF RELEASE NA NA l l1 l 6 l j Z l @ l Z l@l l l 45 80 7 8 9 10 11 44 PE RS^%EL E xpOSL AES NUYHER TYPE DESCRIPTION l1 l7ll0l0l0l@lZl@l NA l

PEnSawE L ,NJES N um R DtSCRiPTiON@

NA l li l- I8 lo 1 9 10 lo l@l 11 17 80 LOSS OF CR D AVAGE TO FACILITY TYPE DESCRIPTION NA l I i I o l ')IZ l@l10 7 B 80 PL8L' CITY A NRC USE ONLY issuEn DESCRtPTIC 8203250125 820316 IIIIIIIIIIIII $

l2 Io f IN lhL,o PDR ADOCK 05000271 I 80 5 2

1 , 3 S pop s0 se

. wa t t eit c. uu w..,7 PHONE:

(802) 257-7711 2 NAME OF PREPARER o