ML20028A310

LER 82-042/03L-0:on 821013,unplanned Radioactive Gas Release Occurred W/Reactor Shutdown & Depressurized.Caused by High Airborne Activity in Reactor Bldg Due to Leaking Blank Flange.Emergency Procedures Initiated.Flange Repaired

ML20028A310
Person / Time
Site:	Fort Saint Vrain
Issue date:	11/10/1982
From:	Fuller C PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20028A309	List: ML20028A308 ML20028A310
References
LER-82-042-03L, LER-82-42-3L, NUDOCS 8211180224
Download: ML20028A310 (1)

Text

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- LICENSEE EVCNT REPORT 6

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EVENT DESCRIPTION AND PROOA8LE CONSEQUENCES h 3

0 2 10n October 13, 1982, at approximately 0555 hours0.00642 days <br />0.154 hours <br />9.176587e-4 weeks <br />2.111775e-4 months <br />, an unplanned, unsaneled, radioactivel 3 o i gas miease occurmd with the mactor shutdown and depmssurized. The release via thel l

DiT41 I filtered reactor plant exhaust stack was caused due to high airborne activity within I

l m l the Reactor Building. The miease was analyzed to be less than NC. Reportable per l l

p; pq l Fort St. Vrain Technical Specification AC 7.5.2(b)4. No effect on public health or i

ITTT'l I safety. Similar occurrence is R0 82-022. l I

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[ CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 j g lA leaking blank flange, which was installed after removinn HV-2301 for maintenance. I i i i l caused high airborne activity in the Reactor Building and the subseauent release via i g lthe ventilaticn exhaust system. Emergency Procedures were initiated, and the flange i g lwas repai red. Appropriate notifications wem made. No further corrective action I g l anticipated or required. I

% POWER OTHER STATUS is RY DISCOVERY DESCRIPTION STA l i s [Gj@ l 0101 Ol@l N/A I LA,,,j@l Personnel Observation I 7

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1. * * ' * '5 hem 80 I PERSONNEL EXPOSU ES NUMBER TYPE DESCRIPTION

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NAME OF PREPARER b' ## k PHONE: (303) 785-2224 {

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