Event Notification Report for December 19, 2019
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
12/18/2019 - 12/19/2019
EVENT NUMBERS
54453
Non-Power Reactor
Event Number: 54453
Rep Org: UNIV OF MISSOURI-COLUMBIA
Licensee: UNIVERSITY OF MISSOURI
Region: 0
City: COLUMBIA State: MO
County: BOONE
License #: R-103
Agreement: N
Docket: 05000186
NRC Notified By: JEREMY CUSTER
HQ OPS Officer: ANDREW WAUGH
Licensee: UNIVERSITY OF MISSOURI
Region: 0
City: COLUMBIA State: MO
County: BOONE
License #: R-103
Agreement: N
Docket: 05000186
NRC Notified By: JEREMY CUSTER
HQ OPS Officer: ANDREW WAUGH
Notification Date: 12/20/2019
Notification Time: 06:43 [ET]
Event Date: 12/19/2019
Event Time: 21:21 [CST]
Last Update Date: 12/20/2019
Notification Time: 06:43 [ET]
Event Date: 12/19/2019
Event Time: 21:21 [CST]
Last Update Date: 12/20/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
GEOFFREY WERTZ (NRR PM)
BETH REED (NRR)
GEOFFREY WERTZ (NRR PM)
BETH REED (NRR)
TECHNICAL SPECIFICATION DEVIATION
"On December 19, 2019, at 2121 CST, the University of Missouri-Columbia Research Reactor (MURR) was shut down due to a seized servomotor on the regulating blade drive mechanism during reactor operation. This notification is required 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, a new motor installed, and then the regulating blade drive mechanism was 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 December 20.
"A detailed event report will follow within 14 days as required by TS 6.6.c(3)."
"On December 19, 2019, at 2121 CST, the University of Missouri-Columbia Research Reactor (MURR) was shut down due to a seized servomotor on the regulating blade drive mechanism during reactor operation. This notification is required 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, a new motor installed, and then the regulating blade drive mechanism was 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 December 20.
"A detailed event report will follow within 14 days as required by TS 6.6.c(3)."