Home > NRC Library > ADAMS Public Documents

Forwards LER 98-012-00 re discovery of failure of MSIVs to fully close under no steam flow conditions.Util determined that condition did not impair MSIV safety function to close in event of analyzed accident.

Accession Number: ML18066A369

Date Released: Friday, July 31, 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.

• ML18066A368 - Forwards LER 98-012-00 re discovery of failure of MSIVs to fully close under no steam flow conditions.Util determined that condition did not impair MSIV safety function to close in event of analyzed accident. (5 page(s), 1/14/1999)
• ML20199E975 - LER 98-012-00:on 981215,discovered that MSIVs were slightly open based on local stem position.Caused by high packing friction introduced by packing replacement during 1998 RFO. Completed actions to assure MSIVs will fully close. (4 page(s), 1/14/1999)