U.S. Nuclear Regulatory Commission Operations Center Event Reports For 03/05/2018 - 03/06/2018 ** EVENT NUMBERS ** | Non-Power Reactor | Event Number: 53244 | Facility: UNIV OF MISSOURI-COLUMBIA RX Type: 10000 KW TANK Comments: Region: 0 City: COLUMBIA State: MO County: BOONE License #: R-103 Agreement: N Docket: 05000186 NRC Notified By: BRUCE MEFFERT HQ OPS Officer: STEVEN VITTO | Notification Date: 03/05/2018 Notification Time: 13:14 [ET] Event Date: 03/04/2018 Event Time: 03:08 [CST] Last Update Date: 03/05/2018 | Emergency Class: NON EMERGENCY 10 CFR Section: NON-POWER REACTOR EVENT | Person (Organization): GEOFFREY WERTZ (NRR) ELIZABETH REED (NRR) | Event Text TECHNICAL SPECIFICATION DEVIATION "On 3/4/18 at 0308 CST, the MURR [University of Missouri Research Reactor] emergency power generator was switched out of automatic control for approximately 10 to 15 seconds while the reactor was operating due to human error. With the emergency power generator in manual control, the emergency electrical power system is considered inoperable because the emergency electrical power system would not have supplied power in the event of a loss of normal electrical power. "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 MURR TS 1.1 happened. Specifically, MURR was not in compliance with the Limiting Condition for Operation TS 3.6.a which states, 'The reactor shall not be operated unless the emergency electrical power system is operable.' When the emergency power generator was switched out of automatic control, a Control Room alarm notified the Console Operator. Another operator placed the emergency power generator back into automatic mode which was the quickest way to regain compliance with TS 3.6.a. The MURR continued to operate at 10 MW. A detailed event report will follow within 14 days as required by MURR TS 6.6.c.(3)." The licensee notified the NRC Research and Test Reactor Project Manager (Wertz). | Part 21 | Event Number: 53246 | Rep Org: CRANE NUCLEAR, INC. Licensee: CRANE NUCLEAR, INC. Region: 3 City: BOLINGBROOK State: IL County: License #: Agreement: Y Docket: NRC Notified By: JOYCE HAMMAN HQ OPS Officer: HOWIE CROUCH | Notification Date: 03/06/2018 Notification Time: 18:33 [ET] Event Date: 12/17/2017 Event Time: [CST] Last Update Date: 03/06/2018 | Emergency Class: NON EMERGENCY 10 CFR Section: 21.21(d)(3)(i) - DEFECTS AND NONCOMPLIANCE | Person (Organization): DAN SCHROEDER (R1DO) RANDY MUSSER (R2DO) MICHAEL VASQUEZ (R4DO) PART 21/50.55 REACTO (EMAI) | Event Text PART 21 - UNDERSIZED PACKING GLANDS IN CERTAIN CRANE GATE VALVES On 12/17/17, Brunswick Nuclear Plant experienced a packing gland blowout on an in-service Crane Nuclear, Inc., Figure Number 83 1/2 SPL, 10 inch by 8 inch by 10 inch, Bolted Bonnet Gate Valve. Crane Nuclear determined that component drawings for the 10 inch valve as well as the 6 inch by 4 inch by 6 inch Bolted Bonnet Gate Valve were in error. That error was corrected. Crane Nuclear is recommending that affected licensees replace the packing glands of the affected valves in their possession. The affected licensees are Pilgrim Station, Cooper Nuclear Station, Browns Ferry Nuclear, and Brunswick Nuclear. Should you have any questions regarding this matter, please contact Joyce Hamman, Director, Safety & Quality at (678) 451-2280, Burt Anderson, Site Leader, at (630) 226-4990, or Samson Kay, Engineering Manager at (630) 226-4983. | |