Closeout of IE Bulletin 86-01: Minimum Flow Logic Problems That Could Disable Residual Heat Removal Pumps.

摘要

Documentation is provided in the report for the closeout of IE Bulletin 86-01 regarding minimum flow logic problems that could disable residual heat removal (RHR) pumps in General Electric boiling water reactor facilities (GE/BWRs). Closeout is based on the implementation and verification of four (4) required actions by holders of operating licenses and construction permits of GE/BWR power reactors. Evaluation of responses and NRC/Region inspection reports indicates that the bulletin is closed for all of the 39 affected facilities. Background information is supplied in the Introduction and Appendix A of the report.