Event Notification Report for November 09, 2019
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
11/08/2019 - 11/09/2019
Agreement State
Event Number: 54381
Rep Org: ALABAMA RADIATION CONTROL
Licensee: NUCOR STEEL TUSCALOOSA
Region: 1
City: Tuscaloosa State: AL
County:
License #:
Agreement: Y
Docket:
NRC Notified By: MYRON RILEY
HQ OPS Officer: THOMAS KENDZIA
Licensee: NUCOR STEEL TUSCALOOSA
Region: 1
City: Tuscaloosa State: AL
County:
License #:
Agreement: Y
Docket:
NRC Notified By: MYRON RILEY
HQ OPS Officer: THOMAS KENDZIA
Notification Date: 11/12/2019
Notification Time: 08:42 [ET]
Event Date: 11/09/2019
Event Time: 00:00 [CST]
Last Update Date: 11/12/2019
Notification Time: 08:42 [ET]
Event Date: 11/09/2019
Event Time: 00:00 [CST]
Last Update Date: 11/12/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
10 CFR Section:
AGREEMENT STATE
Person (Organization):
FRANK ARNER (R1DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
FRANK ARNER (R1DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
AGREEMENT STATE REPORT - DAMAGED SHUTTER ON GAUGE
The following was received from the Alabama Office of Radiation Control (AORC) via fax:
"On Saturday, November 9, 2019, Alabama Emergency Management Agency (AEMA) reported to [the AORC] Duty Officer a damaged gauge that had been reported from Nucor Steel Tuscaloosa. AEMA stated that the damage was minimal and with no releases to the general public. This information was reported by the Environmentalist with Nucor Steel Tuscaloosa.
"The Duty Officer contacted the Environmentalist and he stated that an over fill had occurred and damaged the locking pin on the shutter of the gauge. Surveys revealed no damage to the shielding of the gauge, but the gauge will be kept secure in the caster mold until Ronan arrives for assessment of damage. The shutter mechanism is functioning, but cannot be locked in the closed position.
"As of today [November 12, 2019], 0730 CST, the gauge is secure, but unlockable. The licensee has contacted the manufacturer for assessment and repair. Ronan is scheduled to arrive on November 14, 2019. The incident remains open until the appropriate repairs are completed."
Alabama Incident 19-32
The following was received from the Alabama Office of Radiation Control (AORC) via fax:
"On Saturday, November 9, 2019, Alabama Emergency Management Agency (AEMA) reported to [the AORC] Duty Officer a damaged gauge that had been reported from Nucor Steel Tuscaloosa. AEMA stated that the damage was minimal and with no releases to the general public. This information was reported by the Environmentalist with Nucor Steel Tuscaloosa.
"The Duty Officer contacted the Environmentalist and he stated that an over fill had occurred and damaged the locking pin on the shutter of the gauge. Surveys revealed no damage to the shielding of the gauge, but the gauge will be kept secure in the caster mold until Ronan arrives for assessment of damage. The shutter mechanism is functioning, but cannot be locked in the closed position.
"As of today [November 12, 2019], 0730 CST, the gauge is secure, but unlockable. The licensee has contacted the manufacturer for assessment and repair. Ronan is scheduled to arrive on November 14, 2019. The incident remains open until the appropriate repairs are completed."
Alabama Incident 19-32
Power Reactor
Event Number: 54378
Facility: HARRIS
Region: 2 State: NC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: CHUCK YARLEY
HQ OPS Officer: BRIAN P. SMITH
Region: 2 State: NC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: CHUCK YARLEY
HQ OPS Officer: BRIAN P. SMITH
Notification Date: 11/09/2019
Notification Time: 13:28 [ET]
Event Date: 11/09/2019
Event Time: 06:35 [EST]
Last Update Date: 11/09/2019
Notification Time: 13:28 [ET]
Event Date: 11/09/2019
Event Time: 06:35 [EST]
Last Update Date: 11/09/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(A) - POT UNABLE TO SAFE SD
10 CFR Section:
50.72(b)(3)(v)(A) - POT UNABLE TO SAFE SD
Person (Organization):
ERIC MICHEL (R2DO)
ERIC MICHEL (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | N | 0 | Refueling | 0 | Refueling |
BOTH SOURCE RANGE INSTRUMENTS FOUND INOPERABLE
"At November 9, 2019, at 0635 EST, it was discovered that both source range instrumentation channels were simultaneously inoperable; therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v)(A). The neutron flux monitoring system was OPERABLE during this time period.
"NRC Resident Inspectors have been notified."
It was determined that with one of two source range instruments out of service for planned maintenance, an operator found the other operable source range instrument out-of-calibration. Upon further investigation, the out-of-calibration instrument had a bad potentiometer with its power supply, thus rendering both instruments inoperable.
"At November 9, 2019, at 0635 EST, it was discovered that both source range instrumentation channels were simultaneously inoperable; therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v)(A). The neutron flux monitoring system was OPERABLE during this time period.
"NRC Resident Inspectors have been notified."
It was determined that with one of two source range instruments out of service for planned maintenance, an operator found the other operable source range instrument out-of-calibration. Upon further investigation, the out-of-calibration instrument had a bad potentiometer with its power supply, thus rendering both instruments inoperable.