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.
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