Home > NRC Library > ADAMS Public Documents

Forwards safety evaluation re Mark I containment vacuum breakers.Util 850814,0523 & 861203 responses to staff 850411 ltr re acceptable methodology for breaker qualification insufficient for delaying mod to vacuum breakers.

Accession Number: ML20212C077

Date Released: Thursday, August 13, 2020

Package Contents

The following links on this page are to Adobe Portable Document Format (PDF) files. To obtain a free viewer for displaying this format, see our Plugins, Viewers, and Other Tools.

• ML20212M326 - Forwards safety evaluation re Mark I containment vacuum breakers.Util 850814,0523 & 861203 responses to staff 850411 ltr re acceptable methodology for breaker qualification insufficient for delaying mod to vacuum breakers. (4 page(s), 3/3/1987)
• ML20212M356 - Safety evaluation rejecting util schedule for completion of Mark I containment program re vacuum breaker integrity. Required vacuum breaker parts should be replaced prior to startup from Cycle 12 refueling outage. (3 page(s), 3/3/1987)
• ML20212C072 - "Structural Evaluation of Vacuum Breakers (Mark I Containment Program),Oyster Creek Plant," supplementary technical evaluation rept. (20 page(s), 8/4/1986)