Event Notification Report for August 04, 2020
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
08/03/2020 - 08/04/2020
Agreement State
Event Number: 54814
Rep Org: LOUISIANA RADIATION PROTECTION DIV
Licensee: MISTRAS Group, Inc.
Region: 4
City: Geismar State: LA
County:
License #: LA-10986-L01
Agreement: Y
Docket:
NRC Notified By: James Pate
HQ OPS Officer: Andrew Waugh
Licensee: MISTRAS Group, Inc.
Region: 4
City: Geismar State: LA
County:
License #: LA-10986-L01
Agreement: Y
Docket:
NRC Notified By: James Pate
HQ OPS Officer: Andrew Waugh
Notification Date: 08/04/2020
Notification Time: 15:38 [ET]
Event Date: 08/04/2020
Event Time: 11:20 [CDT]
Last Update Date: 08/04/2020
Notification Time: 15:38 [ET]
Event Date: 08/04/2020
Event Time: 11:20 [CDT]
Last Update Date: 08/04/2020
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
GREG PICK (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
GREG PICK (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
AGREEMENT STATE REPORT - DAMAGED RADIOGRAPHY CAMERA
The following is a summary of information that was received from the Louisiana Department of Environmental Quality via email:
On August 4, 2020, at 1120 CDT, at a job site in New Iberia, LA, the drive cable on one of the licensee's industrial radiography cameras broke six inches from the drive cable to source cable connector. The radiographers set up a 2mR boundary after being unable to retract the source into a shielded position. One of the licensee's radiation safety officers (RSO) was called to the scene and was able to retrieve the source. During this event the RSO received a dose of 313 mR and the crew received 16 and 11 mR according to their insta-dose badges.
The radiography camera is a SPEC 150 (s/n: 2131) with a 56 Ci Ir-192 source (s/n: BF2401).
Event Report ID No.: LA20200007
The following is a summary of information that was received from the Louisiana Department of Environmental Quality via email:
On August 4, 2020, at 1120 CDT, at a job site in New Iberia, LA, the drive cable on one of the licensee's industrial radiography cameras broke six inches from the drive cable to source cable connector. The radiographers set up a 2mR boundary after being unable to retract the source into a shielded position. One of the licensee's radiation safety officers (RSO) was called to the scene and was able to retrieve the source. During this event the RSO received a dose of 313 mR and the crew received 16 and 11 mR according to their insta-dose badges.
The radiography camera is a SPEC 150 (s/n: 2131) with a 56 Ci Ir-192 source (s/n: BF2401).
Event Report ID No.: LA20200007
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor
Event Number: 54816
Facility: Millstone
Region: 1 State: CT
Unit: [] [2] []
RX Type: [1] GE-3,[2] CE,[3] W-4-LP
NRC Notified By: Michael Watson
HQ OPS Officer: Andrew Waugh
Region: 1 State: CT
Unit: [] [2] []
RX Type: [1] GE-3,[2] CE,[3] W-4-LP
NRC Notified By: Michael Watson
HQ OPS Officer: Andrew Waugh
Notification Date: 08/04/2020
Notification Time: 22:43 [ET]
Event Date: 08/04/2020
Event Time: 17:45 [EDT]
Last Update Date: 08/19/2020
Notification Time: 22:43 [ET]
Event Date: 08/04/2020
Event Time: 17:45 [EDT]
Last Update Date: 08/19/2020
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(v)(A) - Pot Unable To Safe Sd 50.72(b)(3)(v)(B) - Pot Rhr Inop 50.72(b)(3)(v)(D) - Accident Mitigation
10 CFR Section:
50.72(b)(3)(v)(A) - Pot Unable To Safe Sd 50.72(b)(3)(v)(B) - Pot Rhr Inop 50.72(b)(3)(v)(D) - Accident Mitigation
Person (Organization):
FRANK ARNER (R1DO)
FRANK ARNER (R1DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 100 | Power Operation | 75 | Power Operation |
EN Revision Imported Date : 8/20/2020
EN Revision Text: BOTH SERVICE WATER HEADERS DECLARED INOPERABLE
On 8/4/20, at 1745 EDT, Millstone Unit 2 entered technical specification (TS) 3.0.3 due to both service water headers being declared inoperable because strainer differential pressures (D/Ps) were greater than 9 psid. The high service water strainer D/P was the result of heavy debris impingement caused by tropical storm Isaias. To reduce heat loads and service water flow, Unit 2 reduced power to 75 percent.
One service water header was restored to operable at 1816 EDT, at which time TS 3.0.3 was exited. At 1843 EDT both service water headers were declared operable.
The NRC Resident Inspector has been notified.
* * * RETRACTION ON 8/19/2020 AT 1141 EDT FROM ERIC DONCH TO KIRBY SCALES * * *
"The purpose of this call is to retract a report made on August 4, 2020, NRC Event Number EN 54816 describes a condition at Millstone Power Station Unit 2 (MPS2) in which both trains of service headers were declared inoperable due to service water strainer differential pressures greater than 9 psid.
"The condition was reported to the NRC pursuant to 10 CFR 50.72(b)(3)(v)(A), (B) and (D) via an 8 hour prompt report as an event or condition that at the time of discovery could have prevented the fulfillment of the safety function of structures or systems that are needed to shutdown the reactor and maintain it in a safe shutdown condition, remove residual heat and mitigate the consequences of an accident.
"Upon further review, MPS2 determined that there was no loss of safety function. An engineering evaluation supports the conclusion that a strainer differential pressure of 16 psid would not challenge the system flow distribution during worst case conditions. The evaluation also demonstrates that flowrates on both headers were observed to be unaffected during the timeframe of the high strainer differential pressure conditions. Therefore, both service water headers would have provided the required flows to perform their safety function.
"Therefore, this condition is not reportable and NRC Event Number EN 54816 is being retracted.
"The basis for this conclusion has been provided to the NRC Resident Inspector."
Notified R1DO (Greives).