ENS 54187

v t e ENS Event
00:03 Jul 30, 2019
Title	Technical Specification Deviation
Event Description	The following information was received via email: On July 29, 2019, at 1903 CDT, the University of Missouri-Columbia Research Reactor (MURR) was shut down due to a failure of the regulating blade drive mechanism during reactor operation. This email is a required notification per MURR Technical Specification (TS) 6.6.c(1) to report to the NRC Operations Center that an Abnormal Occurrence, as defined by TS 1.1, had occurred. MURR was not in compliance with all Limiting Conditions for Operations (LCOs), specifically TS 3.2.a, which states, 'All control blades, including the regulating blade, shall be operable during reactor operation.' The regulating blade drive mechanism was removed, repaired, reinstalled, and all its functions were tested satisfactorily. Permission from the Reactor Facility Director was obtained per TS 6.6.c(4) prior to starting up the reactor later on July 29. Currently, MURR is at 10 MW. A detailed event report will follow within 14 days as required by TS 6.6.c(3). The licensee has notified the NRC Research and Test Reactor Project Manager.

ENS 54187 +/-
Where
Univ Of Missouri-Columbia Columbia, Missouri (NRC Region 0)
License number:	R-103
Reporting

Non
Time - Person (Reporting Time:+13.73 h0.572 days <br />0.0817 weeks <br />0.0188 months <br />)
Opened:	Bruce Meffert 13:47 Jul 30, 2019
NRC Officer:	Andrew Waugh Property "NRC officer" (as page type) with input value "Andrew Waugh " contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process.
Last Updated:	Jul 30, 2019
54187 - NRC Website
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