ENS 52495

v t e ENS Event
03:30 Jan 18, 2017
Title	Failure of the Regulating Blade to Move
Event Description	On 1/17/17 at 2130 CST, the MURR [University of Missouri Research Reactor] was shut down due to the failure of the regulating blade to move. This email is a required notification per MURR TS 6.6.c.(1) to report to the NRC Operations Center that an Abnormal Occurrence as defined by MURR TS 1.1 happened. Specifically, MURR was not in compliance with all Limiting Conditions for Operations (LCOs). MURR was not in compliance with the LCO TS 3.2.a. which states, 'All control blades, including the regulating blade, shall be operable during reactor operation.' The regulating blade was repaired, and the required compliance procedure was conducted on the regulating blade prior to the reactor being started up on 1/18/17. Currently, MURR is again at 10 MW. A detailed event report will follow within 14 days as required by MURR TS 6.6.c.(3). The reactor was at 10 MW power when this event occurred. The cause of this event is under investigation. The licensee notified the NRC RTR Project Manager.

ENS 52495 +/-
Where
Univ Of Missouri-Columbia Columbia, Missouri (NRC Region 0)
License number:	R-103
Reporting

Research And Test Reactor Event
Time - Person (Reporting Time:+6.57 h0.274 days <br />0.0391 weeks <br />0.009 months <br />)
Opened:	Bruce Meffert 10:04 Jan 18, 2017
NRC Officer:	Donald Norwood
Last Updated:	Jan 18, 2017
52495 - NRC Website
v • d • e

v t e Emergency Notification System
Univ Of Missouri-Columbia with Research And Test Reactor Event
WEEKMONTHYEAR2017-02-03T06:00:00 [Table view]
[ENS list for Univ Of Missouri-Columbia]

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