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Event Notification Report for November 12, 2019

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
11/11/2019 - 11/12/2019

** EVENT NUMBERS **


54368 54371

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Agreement State Event Number: 54368
Rep Org: MISSISSIPPI DIV OF RAD HEALTH
Licensee: MISTRAS
Region: 4
City: Pascagoula   State: MS
County: Jackson
License #: 12-16559-02
Agreement: Y
Docket:
NRC Notified By: JASON MOHA
HQ OPS Officer: DAN LIVERMORE
Notification Date: 11/03/2019
Notification Time: 11:38 [ET]
Event Date: 11/02/2019
Event Time: 10:40 [CST]
Last Update Date: 11/08/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
20.2202(b)(1) - PERS OVEREXPOSURE/TEDE >= 5 REM
Person (Organization):
JOHN DIXON (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)

Event Text

POTENTIAL OVEREXPOSURE OF RADIOGRAPHER

The following was received from the Mississippi Division of Radiological Health via phone:

A radiographer was exposed to a 100 Curie Ir-192 source for 8 minutes while changing film during a radiography shot. The radiographer was not wearing dosimetry and did not have a hand held radiation meter. While changing film, the radiographer realized the source had not been retracted and left the area. This was not an equipment malfunction, and the source was retracted when it was realized that the radiographer had been exposed. The radiographer reported the event to the Mistras Radiation Safety Officer (RSO). Estimated dose is 20 Rem to the hands and 19.6 to 19.7 Rem whole body. The radiographer was sent to a local hospital for bloodwork.

* * * UPDATE FROM ROBERT SIMS TO HOWIE CROUCH VIA EMAIL AT 1706 EST ON 11/8/19 * * *

"[A state of Mississippi Health Physicist investigator] interviewed the RSO on 11/7/2019 and investigated the incident. After reviewing and questioning the incident details, [the investigator] found the following evidence that may determine this may not have been an overexposure. The assistant radiographer retracted the source, but did not perform the bump test to fully retract the source into the locked position. This caused the assistant radiographer to believe the source was still in the collimator. When returning to change the film, he saw the red button on the camera instead of green which would indicate the source was in the locked position. The assistant was not using dosimetry, rate alarm or survey instrumentation. He appears to have panicked, came down the ladder, and couldn't get the crank to move in. The lead radiographer then grabbed the crank and cranked out and back in immediately to fully retract the source into the camera. [The investigator] reviewed compliant leak tests of camera and wipes along with maintenance and service reports before and after the incident and the RSO could not replicate any problems that would prevent them from retracting the source. There was no malfunction with the camera or the cranks. It appears that the source was in the end of the camera but not in the fully shielded position, which could allow some radiation out of the tube that the source enters. However, we do not know how much because the assistant was not wearing any dosimetry. The other assistant's dosimetry only picked up 1 milliRem of dose but he was approximately 25 ft. away with steel shielding from the tank they were working on in between him and the source. [The investigator is] waiting on the emergency reading of the doses recorded on the OSL badges used by the crew and follow up doctor's visit. [The investigator] interviewed [the assistant radiographer on] 11/8/2019 at 1549 CST. [The assistant radiographer] reports that he had more blood drawn today and will provide results next week. He said he feels great and has had no sickness such as nausea, pain or redness and swelling in the hands. Will update again next week after receiving lab results."

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!!!!! THIS EVENT HAS BEEN RETRACTED.THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor Event Number: 54371
Facility: GRAND GULF
Region: 4     State: MS
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: RALPH FLICKINGER
HQ OPS Officer: ANDREW WAUGH
Notification Date: 11/06/2019
Notification Time: 01:17 [ET]
Event Date: 11/05/2019
Event Time: 18:11 [CST]
Last Update Date: 11/11/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
JAMES DRAKE (R4DO)
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 100 Power Operation 100 Power Operation

Event Text

TWO DIESEL GENERATORS CONCURRENTLY INOPERABLE

"On November 5, 2019 at 1811 CST, station service water A and the Division 1 diesel generator (DG) were declared inoperable based on the results of an engineering evaluation of a Class 3 piping leak. This was determined to be a potential inability to fulfill a safety function due to concurrent inoperability of two emergency diesel generators. Division 3 DG was inoperable due to planned maintenance on November 4, 2019 at 0000 CST.

"This event is being reported an 8-hour non-emergency notification per 10 CFR 50.72 (b)(3)(v)(D) as an event or condition that could have prevented the fulfillment of a safety function (Accident Mitigation).

"Division 3 DG and high pressure core spray have been restored, and the fulfillment of the accident mitigation safety function has been restored.

"The NRC Senior Resident Inspector has been notified."

* * * RETRACTION ON 11/11/19 AT 1739 EST FROM GABRIEL HARGROVE TO BETHANY CECERE * * *

"This was initially reported under 10 CFR 50.72(b)(3)(v)(D). However, subsequent engineering evaluation determined that the condition did not affect safety system operability. The evaluation determined that the leakage was within allowable limits and piping structural integrity was not challenged at this time nor in the past three years.

"The Division 1 DG and SSW A were at the time of discovery OPERABLE and EN54371 is being retracted."

The licensee will notify the NRC Resident Inspector.

Notified R4DO (Drake).


Page Last Reviewed/Updated Tuesday, November 12, 2019
Tuesday, November 12, 2019