United States Nuclear Regulatory Commission - Protecting People and the Environment

Bulletin 80-17: Supplement 5, Failure of Control Rods to Insert During a Scram at a BWR

                                 UNITED STATES
                         NUCLEAR REGULATORY COMMISSION
                            WASHINGTON, D.C. 20555

                               February 13, 1981

IE BULLETIN NO. 80-17, SUPPLEMENT 5: FAILURE OF CONTROL RODS TO INSERT DURING 
A SCRAM AT A BWR

Description of Circumstances:

On July 3, 1980, the NRC issued IE Bulletin No. 80-17, that required actions 
to be taken by licensees of all operating GE BWRs. Among the actions
required,  Item 6(a) required a prompt notification report by telephone to
the  appropriate Regional Office followed by a telecopy or other written
submittal.  These reports were required in the event that any of the systems
(HPCI, RCIC,  SLCS, RPT, RHR/pool cooling, and main steam bypass) were found
to be less than  fully operable.

These reports have served the purpose of notifying NRC of cases of potential 
reduction in operability of systems important to the mitigation of 
consequences of an anticipated transient without scram (ATWS) event. These 
reports are no longer necessary since improvements have been accomplished to 
increase the reliability of control rod scram.

Actions No Longer Necessary by Licensees:

Further reporting is not required in response to Item 6(a) of IE Bulletin No. 
80-17. This does not change the reporting requirements set forth in your 
license technical specifications.

No written response to IE Bulletin 80-17, Supplement 5, is required. If you 
have any questions regarding this matter, please contact the appropriate NRC 
Regional Office.

Attachment:
Recently issued IE Bulletins




Page Last Reviewed/Updated Tuesday, July 23, 2013